NYC 1" precipitation events

[uncle W]

these 1" events can come in a hour or over three days if the precip didn't stopped for a while...daily 1" days are all included regardles of time of precip...numbers are rounded off to the nearest tenth...events must reach 1.00"...0.99" is not counted...since 2017 I did not have hourly precip numbers...I estimated and used daily amounts...3" events have slackened off in the last few years...the last 4" event was a 5" event in 2014...1983 ha 29 1" or greater events...11 over 2"...1965 had only 5 events and none over 2"...

year...ann"# 1".....1....2....3....4....5....6....7....8....9...10..11..12..13..14..15..16..17..18..19..20..21..22..23..24..25..26..27..28..29

1950..36.9"..08..2.0 1.1 1.2 2.2 1.1 1.8 1.6 1.2

1951..44.4"..15..1.3 1.2 1.3 2.7 1.2 1.9 1.6 1.0 2.1 1.0 2.0 2.0 2.2 1.1 1.4

1952..41.5"..13..1.5 1.5 1.8 2.3 1.4 1.9 2.4 2.0 1.2 1.2 2.0.1.3 1.2

1953..45.2"..12..1.7 1.5 1.3 1.2 3.7 1.4 1.0 1.4 2.4 3.3 1.3 1.5

1954..35.6"..10..1.6 1.2 1.8 1.4 1.7 3.5 1.3 1.8 2.1 1.2

1955..39.9"..11..1.3 1.3 1.5 1.0 7.2 1.9 1.3 2.6 2.7 1.2 1.8

1956..36.3"..09..1.1 1.0 1.0 1.2 1.6 1.5 1.0 3.2 1.0

1957..36.5"..08..1.9 2.6 1.4 1.3 2.0 1.0 1.7 1.1

1958..40.9"..11..1.3 1.8 1.6 2.5 1.7 1.1 1.51.0 1.2 2.4 1.9

1959..38.8"..14..1.3 1.4 1.1 1.0 1.8 1.1 1.3 1.8 1.1 1.9 1.5 1.4 1.3 1.4

 

1960..46.4"..19..1.7 1.2 1.1 1.1 1.2 1.1 1.5 1.2 1.5 1.2 1.5 3.6 2.2 1.1 2.6 1.0 1.9 1.5 1.3

1961..39.3"..12..2.6 1.0 1.3 1.8 1.6 1.1 1.2 1.1 1.1 1.0 1.3 1.5

1962..37.2"..11..1.8 2.3 1.3 1.3 1.3 1.6 1.7 1.4 1.6 1.1 1.1

1963..34.3"..06..1.0 1.0 1.4 2.2 4.5 2.1

1964..33.0"..08..1.1 1.3 1.4 2.2 1.0 1.2 1.6 2.1

1965..26.1"..05..1.2 1.8 1.3 1.2 1.0

1966..39.9"..10..2.4 1.2 1.0 2.0 2.2 5.5 1.1 3.2 1.4 1.3

1967..49.1"..15..1.1 3.5 1.4 1.2 3.2 2.1 1.1 1.1 1.0 2.1 1.1 1.4 1.5 2.3 1.3

1968..43.6"..16..1.3 1.3 1.7 1.9 2.2 4.9 2.0 1.6 1.1 2.0 1.0 1.4 1.4 1.2 1.3 1.8

1969..48.5"..12..1.8 2.8 1.8 1.4 2.0 6.4 1.1 1.4 1.3 1.6 1.4 1.9

 

1970..35.3"..08..2.6 1.1 2.0 1.1 2.0 1.1 1.7 1.0

1971..56.8"..19..1.1 1.2 1.0 1.1 1.3 1.1 2.2 1.7 1.1 1.6 3.8 2.1 6.0 6.7 2.2 1.7 1.0 1.3 1.6

1972..67.0"..20..1.6 1.3 1.7 1.2 1.2 1.3 1.6 2.2 1.4 1.7 2.4 1.6 3.2 4.4 1.0 5.6 2.2 1.2 1.0 2.0

1973..57.2"..20..1.5 1.4 3.2 1.6 2.0 1.5 1.0 1.4 1.9 1.3 1.5 2.5 2.5 1.7 3.7 1.2 2.2 1.5 2.7 1.2

1974..47.7"..12..1.1 2.0 2.0 1.5 1.8 2.9 3.3 1.5 1.4 2.4 2.5 2.3

1975..61.2"..19..1.6 1.1 1.0 1.8 1.1 1.1 1.7 1.8 2.0 1.8 1.9 1.8 1.9 2.5 1.4 8.1 2.7 2.2 1.8

1976..41.3"..11..2.8 1.5 1.0 1.8 1.0 2.5 5.2 1.8 1.3 1.6 1.3 

1977..54.7"..15..1.3 1.8 1.7 1.5 3.4 2.0 2.0 1.3 2.9 2.0 1.1 9.2 1.1 1.0 1.2

1978..49.8"..17..1.2 1.4 1.9 1.5 2.3 1.1 1.4 2.0 3.6 2.2 1.1 2.9 2.9 1.4 1.0 2.5 1.7

1979..52.1"..17..1.1 1.8 4.0 2.5 1.8 2.9 1.0 1.0 3.6 1.0 2.6 1.3 2.3 1.3 1.2 1.4 1.1 

 

1980..44.6"..11..1.0 1.3 3.3 2.0 3.5 3.2 1.1 3.5 1.5 1.8 1.7 

1981..38.1"..13..1.1 2.6 1.1 1.7 1.8 1.4 1.8 1.6 1.7 1.1 1.6 1.5 1.3

1982..41.4"..16..1.0 2.7 1.3 1.5 1.1 1.9 1.1 1.3 1.0 1.7 1.8 2.2 1.9 1.6 1.7 1.1

1983..80.6"..29..1.7 1.3 1.5 3.4 1.1 1.8 1.5 1.3 1.9 1.4 4.3 2.1 1.1 1.3 1.5 2.3 2.7 2.8 1.5 1.3 3.2 3.4 3.0 1.5 1.7 1.8 1.8 3.7 2.2 1.5

1984..57.0"..18..1.8 1.0 2.4 2.6 4.4 1.8 1.2 5.4 1.5 3.7 3.1 1.2 1.4 1.5 1.9 1.3 1.2 1.2

1985..38.8"..12..1.1 2.5 1.6 1.1 1.4 1.2 2.2 1.1 3.6 1.9 2.8 1.2 

1986..43.0"..13..2.9 1.3 2.8 1.3 1.3 1.4 1.1 2.7 1.0 1.1 1.1 1.2 1.7

1987..46.4"..18..2.2 1.1 2.4 2.0 2.5 1.2 1.4 1.5 1.1 1.2 1.3 1.9 1.5 1.9 1.6 1.8 1.7 1.3

1988..44.7"..14..1.1 1.5 1.1 2.1 1.0 1.0 2.1 1.4 1.3 2.1 1.7 1.1 3.4 1.5

1989..65.1"..22..1.5 2.1 1.3 1.9 1.6 1.3 2.4 3.4 1.5 1.4 2.6 1.4 2.1 1.4 5.5 1.5 1.3 1.8 2.3 1.1 1.1 4.2 

 

1990..60.1"..19..1.4 1.6 1.2 1.1 1.4 1.6 1.7 2.9 2.5 1.1 3.8 4.6 1.5 1.0 1.8 2.5 1.7 2.2 1.1

1991..45.2"..13..1.6 2.5 2.4 1.4 2.0 1.0 1.9 3.0 2.6 1.2 1.5 1.3 2.1 

1992..43.4"..10..1.1 2.0 2.9 2.3 1.6 1.3 2.6 1.5 3.5 1.0

1993..44.3"..15..1.4 1.1 1.4 1.2 2.5 1.1 1.9 3.2 1.6 1.7 1.5 1.7 1.5 2.1 1.7

1994..47.4"..17..1.6 1.9 1.3 1.1 1.0 1.9 1.1 1.8 1.5 1.4 1.1 1.4 3.0 1.5 1.1 1.5 1.0

1995..40.4"..13..1.1 1.4 1.3 1.1 3.3 1.1 2.0 2.0 2.2 1.4 1.2 1.9 1.3

1996..56.2"..13..2.2 1.1 1.2 2.2 3.1 2.1 2.4 2.0 4.4 1.9 1.8 1.2 1.4

1997..43.9"..10..1.6 1.0 2.3 1.1 1.0 1.1 4.6 1.2 1.2 1.3

1998..48.7"..15..1.4 2.7 1.4 1.0 1.9 1.2 2.3 1.5 1.8 2.2 4.3 1.2 2.7 2.4 2.4

1999..42.5"..14..2.4 1.2 1.0 1.2 1.0 1.1 1.4 1.4 1.8 1.6 1.4 5.4 1.1 1.0

 

2000..45.4"..10..1.3 1.6 1.6 2.8 1.4 4.4 1.9 1.8 1.2 1.2

2001..35.9"..11..1.5 1.3 2.3 2.4 1.6 1.5 1.6 1.7 1.2 1.9 1.2

2002..45.2"..15..1.2 1.6 1.1 1.6 2.4 2.7 1.9 2.0 4.6 1.3 1.0 1.1 2.2 1.1 1.3

2003..58.6"..20..1.5 1.8 2.0 1.1 1.3 1.3 2.0 3.0 1.2 2.4 2.0 1.3 1.7 1.2 1.2 1.9 1.7 2.0 1.6 1.4

2004..52.0"..14..1.6 2.0 1.4 1.5 1.2 2.2 2.3 1.4 4.1 2.3 4.7 1.0 1.1 1.2

2005..56.0"..16..1.0 1.2 1.1 3.0 1.8 1.1 1.5 1.5 3.1 4.5 8.6 1.1 2.4 1.4 1.7 1.7

2006..59.9"..20..1.8 1.3 1.9 3.6 1.6 1.0 4.5 1.5 1.1 1.6 2.0 2.5 1.4 1.7 1.9 1.1 2.5 3.6 1.9 1.3

2007..61.7"..22..1.5 1.4 2.6 2.4 1.4 8.4 2.0 3.9 1.2 1.3 1.0 1.6 2.3 1.1 2.5 1.3 1.3 1.2 1.6 1.7 1.3 1.0

2008..53.6"..15..1.3 1.6 2.5 2.0 1.2 1.2 1.3 2.0 1.7 1.2 2.2 3.3 2.5 2.0 3.6

2009..53.6"..17..1.3 1.8 1.2 1.1 1.0 1.9 2.3 1.1 1.4 1.5 1.1 1.2 2.0 1.9 1.2 1.5 2.1

 

2010..49.4"..20..1.3 1.3 1.7 3.2 4.6 1.4 4.3 2.3 1.3 1.1 2.7 1.0 1.7 1.1 2.5 1.1 1.1 1.4 1.4 2.0

2011..72.8"..21..1.3 2.1 1.4 2.1 2.0 1.5 1.8 2.9 1.8 1.1 2.1 5.8 1.2 6.9 5.3 1.2 1.1 2.0 1.6 2.0 1.0 

2012..38.5"..09..1.5 2.9 1.6 1.3 1.8 1.5 2.0 1.2 1.6

2013..46.3"..15..1.5 1.7 1.0 3.0 1.1 2.3 1.7 4.8 1.8 1.6 1.6 1.2 2.5 1.5 1.2

2014..53.8"..18..1.2 1.4 2.1 2.0 5.1 1.5 1.6 1.4 1.0 1.7 1.3 1.2 1.8 2.1 1.6 1.2 1.7 2.5 

2015..40.1"..15..2.1 1.1 1.4 2.6 1.4 2.0 1.2 1.6 1.4 1.5 1.4 1.3 1.2 1.6

2016..42.2"..11..1.8 2.3 1.5 1.5 1.7 1.2 1.1 1.1 1.4 1.8 2.2

2017..45.0"..14..2.3 1.2 2.0 1.5 1.2 1.3 3.2 1.6 1.4 1.4 1.3 1.8 1.3 3.3

2018..65.6"..24..1.8 2.2 1.4 1.1 3.3 1.0 1.4 2.2 1.7 2.9 1.0 1.5 1.0 1.4 1.2 2.0 1.3 1.1 1.5 1.8 1.4 1.8 1.2 1.1

2019..53.0"..18..1.2 1.3 1.4 1.1 1.4 1.4 1.0 1.8 1.1 2.3 2.2 1.4 1.0 1.8 1.4 1.7 2.0 1.0

2020..45.4"..13..1.2 1.9 3.3 1.4 1.8 1.2 1.1 1.3 1.4 2.2 1.1 1.5 1.2

2021.............10..1.1 1.6 2.1 1.3 2.6 1.0 4.1 1.4 8.1 7.4 2.0

[LibertyBell]

How extreme 1983 was with over 80 inches of rain and our 90 day high record along with record high humidity.

[uncle W]

heres Diana Ross in Central Park in July 1983 during a thunder storm that dropped a record amount of rain that day...

 

[rclab]

On 6/15/2021 at 12:35 PM, uncle W said:

these 1" events can come in a hour or over three days if the precip didn't stopped for a while...daily 1" days are all included regardles of time of precip...numbers are rounded off to the nearest tenth...events must reach 1.00"...0.99" is not counted...since 2017 I did not have hourly precip numbers...I estimated and used daily amounts...3" events have slackened off in the last few years...the last 4" event was a 5" event in 2014...1983 ha 29 1" or greater events...11 over 2"...1965 had only 5 events and none over 2"...

year...ann"# 1".....1....2....3....4....5....6....7....8....9...10..11..12..13..14..15..16..17..18..19..20..21..22..23..24..25..26..27..28..29

1950..36.9"..08..2.0 1.1 1.2 2.2 1.1 1.8 1.6 1.2

1951..44.4"..15..1.3 1.2 1.3 2.7 1.2 1.9 1.6 1.0 2.1 1.0 2.0 2.0 2.2 1.1 1.4

1952..41.5"..13..1.5 1.5 1.8 2.3 1.4 1.9 2.4 2.0 1.2 1.2 2.0.1.3 1.2

1953..45.2"..12..1.7 1.5 1.3 1.2 3.7 1.4 1.0 1.4 2.4 3.3 1.3 1.5

1954..35.6"..10..1.6 1.2 1.8 1.4 1.7 3.5 1.3 1.8 2.1 1.2

1955..39.9"..11..1.3 1.3 1.5 1.0 7.2 1.9 1.3 2.6 2.7 1.2 1.8

1956..36.3"..09..1.1 1.0 1.0 1.2 1.6 1.5 1.0 3.2 1.0

1957..36.5"..08..1.9 2.6 1.4 1.3 2.0 1.0 1.7 1.1

1958..40.9"..11..1.3 1.8 1.6 2.5 1.7 1.1 1.51.0 1.2 2.4 1.9

1959..38.8"..14..1.3 1.4 1.1 1.0 1.8 1.1 1.3 1.8 1.1 1.9 1.5 1.4 1.3 1.4

 

1960..46.4"..19..1.7 1.2 1.1 1.1 1.2 1.1 1.5 1.2 1.5 1.2 1.5 3.6 2.2 1.1 2.6 1.0 1.9 1.5 1.3

1961..39.3"..12..2.6 1.0 1.3 1.8 1.6 1.1 1.2 1.1 1.1 1.0 1.3 1.5

1962..37.2"..11..1.8 2.3 1.3 1.3 1.3 1.6 1.7 1.4 1.6 1.1 1.1

1963..34.3"..06..1.0 1.0 1.4 2.2 4.5 2.1

1964..33.0"..08..1.1 1.3 1.4 2.2 1.0 1.2 1.6 2.1

1965..26.1"..05..1.2 1.8 1.3 1.2 1.0

1966..39.9"..10..2.4 1.2 1.0 2.0 2.2 5.5 1.1 3.2 1.4 1.3

1967..49.1"..15..1.1 3.5 1.4 1.2 3.2 2.1 1.1 1.1 1.0 2.1 1.1 1.4 1.5 2.3 1.3

1968..43.6"..16..1.3 1.3 1.7 1.9 2.2 4.9 2.0 1.6 1.1 2.0 1.0 1.4 1.4 1.2 1.3 1.8

1969..48.5"..12..1.8 2.8 1.8 1.4 2.0 6.4 1.1 1.4 1.3 1.6 1.4 1.9

 

1970..35.3"..08..2.6 1.1 2.0 1.1 2.0 1.1 1.7 1.0

1971..56.8"..19..1.1 1.2 1.0 1.1 1.3 1.1 2.2 1.7 1.1 1.6 3.8 2.1 6.0 6.7 2.2 1.7 1.0 1.3 1.6

1972..67.0"..20..1.6 1.3 1.7 1.2 1.2 1.3 1.6 2.2 1.4 1.7 2.4 1.6 3.2 4.4 1.0 5.6 2.2 1.2 1.0 2.0

1973..57.2"..20..1.5 1.4 3.2 1.6 2.0 1.5 1.0 1.4 1.9 1.3 1.5 2.5 2.5 1.7 3.7 1.2 2.2 1.5 2.7 1.2

1974..47.7"..12..1.1 2.0 2.0 1.5 1.8 2.9 3.3 1.5 1.4 2.4 2.5 2.3

1975..61.2"..19..1.6 1.1 1.0 1.8 1.1 1.1 1.7 1.8 2.0 1.8 1.9 1.8 1.9 2.5 1.4 8.1 2.7 2.2 1.8

1976..41.3"..11..2.8 1.5 1.0 1.8 1.0 2.5 5.2 1.8 1.3 1.6 1.3 

1977..54.7"..15..1.3 1.8 1.7 1.5 3.4 2.0 2.0 1.3 2.9 2.0 1.1 9.2 1.1 1.0 1.2

1978..49.8"..17..1.2 1.4 1.9 1.5 2.3 1.1 1.4 2.0 3.6 2.2 1.1 2.9 2.9 1.4 1.0 2.5 1.7

1979..52.1"..17..1.1 1.8 4.0 2.5 1.8 2.9 1.0 1.0 3.6 1.0 2.6 1.3 2.3 1.3 1.2 1.4 1.1 

 

1980..44.6"..11..1.0 1.3 3.3 2.0 3.5 3.2 1.1 3.5 1.5 1.8 1.7 

1981..38.1"..13..1.1 2.6 1.1 1.7 1.8 1.4 1.8 1.6 1.7 1.1 1.6 1.5 1.3

1982..41.4"..16..1.0 2.7 1.3 1.5 1.1 1.9 1.1 1.3 1.0 1.7 1.8 2.2 1.9 1.6 1.7 1.1

1983..80.6"..29..1.7 1.3 1.5 3.4 1.1 1.8 1.5 1.3 1.9 1.4 4.3 2.1 1.1 1.3 1.5 2.3 2.7 2.8 1.5 1.3 3.2 3.4 3.0 1.5 1.7 1.8 1.8 3.7 2.2 1.5

1984..57.0"..18..1.8 1.0 2.4 2.6 4.4 1.8 1.2 5.4 1.5 3.7 3.1 1.2 1.4 1.5 1.9 1.3 1.2 1.2

1985..38.8"..12..1.1 2.5 1.6 1.1 1.4 1.2 2.2 1.1 3.6 1.9 2.8 1.2 

1986..43.0"..13..2.9 1.3 2.8 1.3 1.3 1.4 1.1 2.7 1.0 1.1 1.1 1.2 1.7

1987..46.4"..18..2.2 1.1 2.4 2.0 2.5 1.2 1.4 1.5 1.1 1.2 1.3 1.9 1.5 1.9 1.6 1.8 1.7 1.3

1988..44.7"..14..1.1 1.5 1.1 2.1 1.0 1.0 2.1 1.4 1.3 2.1 1.7 1.1 3.4 1.5

1989..65.1"..22..1.5 2.1 1.3 1.9 1.6 1.3 2.4 3.4 1.5 1.4 2.6 1.4 2.1 1.4 5.5 1.5 1.3 1.8 2.3 1.1 1.1 4.2 

 

1990..60.1"..19..1.4 1.6 1.2 1.1 1.4 1.6 1.7 2.9 2.5 1.1 3.8 4.6 1.5 1.0 1.8 2.5 1.7 2.2 1.1

1991..45.2"..13..1.6 2.5 2.4 1.4 2.0 1.0 1.9 3.0 2.6 1.2 1.5 1.3 2.1 

1992..43.4"..10..1.1 2.0 2.9 2.3 1.6 1.3 2.6 1.5 3.5 1.0

1993..44.3"..15..1.4 1.1 1.4 1.2 2.5 1.1 1.9 3.2 1.6 1.7 1.5 1.7 1.5 2.1 1.7

1994..47.4"..17..1.6 1.9 1.3 1.1 1.0 1.9 1.1 1.8 1.5 1.4 1.1 1.4 3.0 1.5 1.1 1.5 1.0

1995..40.4"..13..1.1 1.4 1.3 1.1 3.3 1.1 2.0 2.0 2.2 1.4 1.2 1.9 1.3

1996..56.2"..13..2.2 1.1 1.2 2.2 3.1 2.1 2.4 2.0 4.4 1.9 1.8 1.2 1.4

1997..43.9"..10..1.6 1.0 2.3 1.1 1.0 1.1 4.6 1.2 1.2 1.3

1998..48.7"..15..1.4 2.7 1.4 1.0 1.9 1.2 2.3 1.5 1.8 2.2 4.3 1.2 2.7 2.4 2.4

1999..42.5"..14..2.4 1.2 1.0 1.2 1.0 1.1 1.4 1.4 1.8 1.6 1.4 5.4 1.1 1.0

 

2000..45.4"..10..1.3 1.6 1.6 2.8 1.4 4.4 1.9 1.8 1.2 1.2

2001..35.9"..11..1.5 1.3 2.3 2.4 1.6 1.5 1.6 1.7 1.2 1.9 1.2

2002..45.2"..15..1.2 1.6 1.1 1.6 2.4 2.7 1.9 2.0 4.6 1.3 1.0 1.1 2.2 1.1 1.3

2003..58.6"..20..1.5 1.8 2.0 1.1 1.3 1.3 2.0 3.0 1.2 2.4 2.0 1.3 1.7 1.2 1.2 1.9 1.7 2.0 1.6 1.4

2004..52.0"..14..1.6 2.0 1.4 1.5 1.2 2.2 2.3 1.4 4.1 2.3 4.7 1.0 1.1 1.2

2005..56.0"..16..1.0 1.2 1.1 3.0 1.8 1.1 1.5 1.5 3.1 4.5 8.6 1.1 2.4 1.4 1.7 1.7

2006..59.9"..20..1.8 1.3 1.9 3.6 1.6 1.0 4.5 1.5 1.1 1.6 2.0 2.5 1.4 1.7 1.9 1.1 2.5 3.6 1.9 1.3

2007..61.7"..22..1.5 1.4 2.6 2.4 1.4 8.4 2.0 3.9 1.2 1.3 1.0 1.6 2.3 1.1 2.5 1.3 1.3 1.2 1.6 1.7 1.3 1.0

2008..53.6"..15..1.3 1.6 2.5 2.0 1.2 1.2 1.3 2.0 1.7 1.2 2.2 3.3 2.5 2.0 3.6

2009..53.6"..17..1.3 1.8 1.2 1.1 1.0 1.9 2.3 1.1 1.4 1.5 1.1 1.2 2.0 1.9 1.2 1.5 2.1

 

2010..49.4"..20..1.3 1.3 1.7 3.2 4.6 1.4 4.3 2.3 1.3 1.1 2.7 1.0 1.7 1.1 2.5 1.1 1.1 1.4 1.4 2.0

2011..72.8"..21..1.3 2.1 1.4 2.1 2.0 1.5 1.8 2.9 1.8 1.1 2.1 5.8 1.2 6.9 5.3 1.2 1.1 2.0 1.6 2.0 1.0 

2012..38.5"..09..1.5 2.9 1.6 1.3 1.8 1.5 2.0 1.2 1.6

2013..46.3"..15..1.5 1.7 1.0 3.0 1.1 2.3 1.7 4.8 1.8 1.6 1.6 1.2 2.5 1.5 1.2

2014..53.8"..18..1.2 1.4 2.1 2.0 5.1 1.5 1.6 1.4 1.0 1.7 1.3 1.2 1.8 2.1 1.6 1.2 1.7 2.5 

2015..40.1"..15..2.1 1.1 1.4 2.6 1.4 2.0 1.2 1.6 1.4 1.5 1.4 1.3 1.2 1.6

2016..42.2"..11..1.8 2.3 1.5 1.5 1.7 1.2 1.1 1.1 1.4 1.8 2.2

2017..45.0"..14..2.3 1.2 2.0 1.5 1.2 1.3 3.2 1.6 1.4 1.4 1.3 1.8 1.3 3.3

2018..65.6"..24..1.8 2.2 1.4 1.1 3.3 1.0 1.4 2.2 1.7 2.9 1.0 1.5 1.0 1.4 1.2 2.0 1.3 1.1 1.5 1.8 1.4 1.8 1.2 1.1

2019..53.0"..18..1.2 1.3 1.4 1.1 1.4 1.4 1.0 1.8 1.1 2.3 2.2 1.4 1.0 1.8 1.4 1.7 2.0 1.0

2020..45.4"..13..1.2 1.9 3.3 1.4 1.8 1.2 1.1 1.3 1.4 2.2 1.1 1.5 1.2

2021..............05..1.1 1.2 2.1 1.3 2.6.

Thank you Unc and well done. I was 7 and 8 respectively in 54/55 and remember the big alley, a community driveway between 74th and 75th street on 11th Ave,. flooding. I’m not sure if it was from  Diane, one of her mid 50’s sisters or just a cloud burst t storm. I remember the driveway drains overflowing. It was delightful for us JD’s in training. As always ….

[uncle W]

I think NYC picked up an inch from yeaterday into early this morning...there was a long gap between rain that started yesterday and the day before on the 30th that doesn't count...Rain this afternoon doesn't count...I have to see the official hourly precipitation amounts to add this to the table...

its official now...NYC had exactly an inch from yesterday into this morning...this was the sixth 1" or greater event this year...

[uncle W]

NYC has over 3" of rain since yesterday...2014 is the last time NYC had over 4" in one event and that was a 5" event...

[Roger Smith]

Hey Uncle W, I took your format and found the data for 1869 to 1949 to complete the available years ... here's what I found. 

YR _ TOT __ n __ events

1869 _ 45.3" _ 11 __ 1.6, 2.6, 1.1, 1.2, 1.5, 1.4, 1.8, 2.1, 1.3, 1.0, 1.1

1870 _ 39.3" _ 11 __ 1.2, 1.3, 1.1, 1.1, 1.0, 1.6, 1.2, 1.6, 1.9, 1.4, 1.1

1871 _ 51.4" _ 14 __ 2.0, 1.0, 1.3, 1.9, 2.3, 1.5, 1.1, 1.0, 1.0, 1.1, 2.7, 2.4, 1.3, 1.1

1872 _ 44.0" _14 __ 1.1, 2.3, 1.3, 1.3, 1.0, 1.2, 1.6, 1.1, 2.9, 1.3, 1.9, 1.6, 1.6, 1.4

1873 _ 48.0" _ 10 __ 1.4, 1.2, 1.3, 1.2, 1.6, 1.3, 1.4, 1.7, 4.8, 2.0

1874 _ 45.8" _ 11 __ 3.1, 1.2, 1.9, 1.4, 1.9, 1.1, 3.3, 3.0, 1.0, 1.2, 1.9

1875 _ 40.7" __ 7 __ 1.8, 1.5, 1.0, 2.6, 2.0, 1,4, 1.3 

1876 _ 41.8" _ 11 __ 1.0, 1.9, 4.3, 1.7, 1.2, 1.4, 1.6, 2.1, 3.4, 1.5, 1.3

1877 _ 40.2" __ 5 __ 1.4, 1.3, 2.9, 4.1, 1.9

1878 _ 48.7" _ 14 __ 1.1, 2.4, 1.2, 1.2, 1.6, 2.9, 3.3, 1.1, 2.5, 2.0, 1.7, 1.0, 1.6, 1.4

1879 _ 39.0" _ 10 __ 1.2, 1.1, 1.2, 1.3, 1.3, 1.0, 1.0, 4.0, 1.0, 1.1

1880 _ 36.6" __ 8 __ 1.1, 1.4, 1.7, 1.4, 1.9, 1.1, 1.2, 1.2

1881 _ 36.3" __ 6 __ 1.7, 1.3, 1.5, 2.2, 1.3, 2.1

1882 _ 45.3" __ 6 __ 1.1, 1.4, 2.6, 1.2, 2.3, 8.3

1883 _ 35.8" __ 5 __ 1.3, 1.9, 1.0, 1.3, 1.1  

1884 _ 52.3" _ 17 __ 1.1, 1.2, 1.1, 1.1, 1.3, 4.3, 1.1, 1.6, 1.4, 1.8, 1.1, 1.2, 1.0, 1.1, 1.6, 1.3, 1.9

1885 _ 35.4" _ 10 __ 1.7, 1.4, 1.2, 2.4, 1.5, 1.1, 1.3, 1.1, 1.2, 1.2

1886 _ 39.4" __ 8 __ 1.0, 2.7, 2.5, 2.3, 1.5, 1.2, 1.6, 1.1

1887 _ 44.0" _ 11 __ 1.0, 1.5, 1.8, 1.3, 2.6, 2.0, 1.8, 1.7, 1.6, 1.1, 1.2

1888 _ 53.3" _ 19 __ 2.1, 1.1, 1.6, 1.5, 1.1, 1.1, 1.1, 1.6, 1.2, 1.0, 2.2, 4.2, 1.7, 1.1, 1.3, 2.1, 1.4, 1.2, 2.3

1889 _ 58.2" _ 17 __ 1.4, 1.2, 1.0, 1.9, 1.5, 1.0, 2.0, 2.7, 1.7, 2.3, 1.7, 1.1, 1.9, 1.5, 3.7, 1.1, 2.2

1890 _ 45.6" _ 10 __ 1.3, 1.1, 1.5, 1.0, 1.4, 1.2, 1.6, 1.6, 1.4, 1.9

1891 _ 39.4" __ 5 __ 1.3, 1.3, 1.3, 1.9, 1.4

1892 _ 35.6" __ 6 __ 1.0, 1.4, 1.2, 1.6, 1.3, 2.4

1893 _ 48.3" _ 15 __ 1.3, 1.6, 1.4, 1.7, 1.1, 2.0, 1.1, 2.0, 1.1, 1.3, 2.5, 3.6, 2.5, 1.4, 1.2

1894 _ 40.4" __ 9 __ 1.3, 4.3, 1.7, 1.7, 1.1, 1.6, 1.1, 1.5, 1.3

1895 _ 35.4" _ 12 __ 2.0, 1.6, 1.1, 1.2, 1.1, 1.1, 1.7, 1.1, 1.2, 1.1, 1.2, 1.1

1896 _ 42.0" _ 11 __ 2.7, 2.3, 1.1, 2.4, 1.2, 2.0, 1.2, 1.1, 1.4, 1.0, 1.2

1897 _ 44.6" _ 13 __ 1.5, 1.1, 1.3, 1.3, 1.9, 2.3, 1.2, 2.2, 2.3, 1.0, 1.2, 1.1, 2.2

1898 _ 47.9" _ 11 __ 1.0, 3.1, 1.4, 1.4, 1.1, 1.1, 2.2, 1.2, 1.1, 1.3, 1.0, 

1899 _ 38.6" _ 10 __ 1.4, 1.6, 1.0, 1.3, 1.4, 1.8, 2.3, 2.1, 1.1, 1.0

1900 _ 41.2" _ 14 __ 1.5, 1.2, 1.2, 1.3, 2.0, 1.0, 1.2, 1.3, 1.3, 1.1, 1.4, 1.1, 1.9, 1.4

1901 _ 48.7" _ 16 __ 2.9, 1.2, 1.4, 1.8, 1.2, 1.3, 1.4, 3.1, 1.3, 1.1, 1.4, 2.5, 1.2, 1.1, 1.2, 2.5

1902 _ 52.8" _ 14 __ 1.9, 1.1, 1.3, 1.7, 1.6, 3.1, 2.3, 1.3, 1.2, 1.6, 1.6, 2.0, 2.0, 1.4

1903 _ 58.5" _ 13 __ 1.3, 1.1, 1.0, 2.2, 2.6, 1.2, 2.0, 1.4, 1.2, 1.6, 4.3, 7.3, 1.3

1904 _ 41.6" __ 8 __ 1.5, 1.1, 1.2, 3.6, 2.0, 1.9, 1.4, 1.3

1905 _ 37.4" _ 13 __ 1.3, 1.1, 1.1, 1.2, 1.1, 1.2, 1.2, 2.5, 1.7, 1.1, 1.3, 1.0, 1.4

1906 _ 40.2" _ 12 __ 2.3, 1.1, 1.1, 2.3, 1.8, 1.1, 2.6, 1.2, 1.1, 1.1, 1.8, 1.3

1907 _ 46.7" _ 12 __ 1.2, 1.5, 1.2, 2.3, 2.1, 2.1, 1.1, 1.7, 1.4, 1.3, 1.3, 1.4

1908 _ 41.1" _ 12 __ 1.3, 1.5, 1.3, 2.2, 3.8, 1.2, 1.9, 1.5, 1.1, 1.3, 3.2, 2.0

1909 _ 41.7" __ 8 __ 1.5, 1.4, 2.1, 2.7, 1.8, 2.4, 4.8, 3.0

1910 _ 33.7" _ 10 __ 1.2, 1.2, 1.4, 1.2, 2.2, 1.1, 1.2, 2.5, 2.6, 1.1

1911 _ 48.8" _ 12 __ 1.8, 1.3, 1.0, 1.1, 1.5, 1.7, 3.8, 1.3, 2.5, 1.3, 1.5, 1.2

1912 _ 45.6" _ 13 __ 1.4, 1.8, 1.8, 1.4, 1.3, 1.0, 1.2, 1.0, 1.0, 3.0*, 2.3, 1.1, 1.7

1913 _ 58.0" _ 20 __ 1.2, 1.0, 1.9, 1.4, 1.1, 1.1, 1.3, 1.3, 1.0, 1.3, 1.2, 3.1, 1.0, 3.5, 5.0, 1.1, 1.1, 3.3, 1.2, 1.6

1914 _ 40.1" _ 11 __ 1.1, 1.5, 1.6, 3.0*, 1.8, 1.1, 1.9, 1.7, 1.1, 1.8, 1.2

1915 _ 45.7" _ 14 __ 2.4, 1.1, 1.1, 2.1, 1.5, 1.1, 1.1, 1.1, 1.9, 1.2, 3.3, 1.5, 1.7, 1.1

1916 _ 37.9" __ 7 __ 2.1, 1.4, 2.7, 1.5, 1.1, 1.1, 1.1

1917 _ 41.0" __ 8 __ 1.1, 1.1, 2.5, 1.5, 2.5, 1.6, 1.2, 1.5

1918 _ 38.3" _ 11 __ 1.0, 1.2, 1.8, 1.9, 2.0, 1.2, 2.0, 1.0, 1.3, 1.0, 1.3

1919 _ 53.3" _ 14 __ 1.2, 1.2, 1.1, 1.3, 1.8, 1.6, 1.1, 1.4, 2.0, 1.8, 1.4, 1.2, 1.7, 2.7

1920 _ 53.2" _ 17 __ 1.7, 1.3, 1.4, 1.8, 1.1, 1.3, 1.3, 1.0, 1.8, 2.0, 1.5, 1.1, 2.2, 1.3, 1.7, 1.1, 1.2

1921 _ 37.8" __ 7 __ 1.8, 2.7, 1.2, 1.1, 1.0, 2.2, 1.3

1922 _ 44.7" _ 11 __ 1.4, 1.1, 1.2, 1.0, 1.5, 2.1, 1.2, 1.5, 1.3, 1.8, 1.3

1923 _ 40.6" __ 7 __ 1.7, 1.1, 1.5, 2.5, 1.5, 1.8, 1.1

1924 _ 41.7" _ 17 __ 1.1, 1.4, 1.3, 2.2, 1.0, 1.3, 1.4, 2.2, 1.0, 1.3, 1.1, 1.0, 2.2, 2.3, 1.4, 1.9, 1.2

1925 _ 41.4" __ 7 __ 1.9, 1.5, 1.5, 1.2, 2.1, 1.1, 1.6

1926 _ 47.8" _ 11 __ 1.7, 1.2, 1.4, 1.6, 3.3, 1.1, 1.4, 2.2, 1.2, 1.0, 1.4

1927 _ 56.1" _ 18 __ 1.1, 1.0, 1.4, 1.1, 1.7, 1.1, 1.7, 2.0, 2.6, 1.6, 1.0, 3.8, 1.1, 2.0, 1.9, 1.8, 1.4, 1.1

1928 _ 45.6" _ 16 __ 1.0, 1.4, 1.0, 1.2, 1.0, 1.0, 1.0, 1.2, 1.0, 1.2, 1.7, 1.1, 1.3, 1.2, 1.3, 1.1

1929 _ 40.4" __ 7 __ 1.7, 1.9, 1.6, 1.1, 2.2, 1.4, 1.1

1930 _ 39.0" __ 8 __ 1.2, 1.1, 2.8, 1.4, 3.0, 1.1, 1.9, 1.4

1931 _ 36.1" __ 5 __ 1.6, 1.3, 1.6, 1.0, 1.5

1932 _ 43.9" _ 13 __ 1.3, 1.3, 2.4, 1.1, 2.1, 1.3, 1.4, 1.2, 2.1, 1.2, 1.7, 1.3, 2.0

1933 _ 53.5" _ 10 __ 1.5, 2.1, 2.2, 2.2, 1.1, 2.2, 1.6, 2.8, 4.2, 1.0

1934 _ 49.8" _ 13 __ 1.1, 2.2, 1.6, 1.1, 1.2, 1.9, 1.6, 1.2, 4.9, 1.4, 1.5, 1.7, 1.2

1935 _ 33.9" __ 7 __ 1.1, 1.5, 1.0, 1.1, 1.2, 1.6, 1.2

1936 _ 49.8" _ 15 __ 1.4, 1.4, 2.4, 1.5, 1.4, 1.3, 1.6, 1.5, 1.6, 1.0, 3.9, 1.0, 2.3, 1.5, 1.4

1937 _ 53.0" _ 15 __ 1.1, 1.2, 1.0, 1.2, 1.1, 1.4, 1.2, 2.7, 1.1, 2.2, 1.5, 1.3, 1.3, 3.1, 2.1

1938 _ 48.5" __ 9 __ 1.4, 1.4, 1.1, 1.7, 2.4, 1.5, 1.8, 1.7, 4.1

1939 _ 38.6" _ 12 __ 1.0, 1.2, 1.5, 1.6, 1.2, 1.3, 1.0, 1.9, 2.3, 1.1, 1.4, 1.4

 

1940 _ 45.1" _ 10 __ 2.1, 1.9, 1.1, 1.5, 3.1, 1.9, 1.5, 2.4, 1.3, 1.2

1941 _ 39.0" _ 10 __ 1.2, 3.0*, 1.8, 1.1, 1.1, 1.7, 1.8, 2.3, 1.6, 3.0* 

1942 _ 48.5" _ 14 __ 1.1, 1.0, 1.6, 1.4, 1.5, 1.1, 1.3, 1.1, 4.1, 1.0, 1.6, 1.3, 1.2, 1.2

1943 _ 36.7" __ 9 __ 1.3, 1.9, 1.8, 1.0, 1.5, 1.2, 1.7, 3.4, 1.1

1944 _ 45.0" __ 9 __ 1.4, 1.9, 1.7, 1.2, 1.6, 3.9, 3.8, 1.3, 1.7

1945 _ 45.0" _ 10 __ 1.7, 1.3, 1.2, 1.3, 1.1, 1.3, 3.1, 1.1, 1.3, 1.1

1946 _ 38.4" _ 13 __ 1.2, 1.1, 1.7, 1.3, 2.1, 2.2, 1.2, 2.1, 2.7, 1.1, 1.2, 1.3, 1.3

1947 _ 40.8" __ 8 __ 1.0, 1.1, 2.0, 1.3, 1.5, 1.8, 1.6, 2.4

1948 _ 46.9" _ 11 __ 1.2, 1.0, 1.6, 1.0, 2.5, 1.4, 1.3, 1.6, 1.5, 1.5, 1.4

1949 _ 36.2" __ 5 __ 1.2, 1.2, 1.1, 1.3, 1.1

_______________________________________________

3.0* _ these amounts were rounded upwards from 2.95 to 2.99 values. 

 

[uncle W]

4 hours ago, Roger Smith said:

Hey Uncle W, I took your format and found the data for 1869 to 1949 to complete the available years ... here's what I found. 

YR _ TOT __ n __ events

1869 _ 45.3" _ 11 __ 1.6, 2.6, 1.1, 1.2, 1.5, 1.4, 1.8, 2.1, 1.3, 1.0, 1.1

1870 _ 39.3" _ 11 __ 1.2, 1.3, 1.1, 1.1, 1.0, 1.6, 1.2, 1.6, 1.9, 1.4, 1.1

1871 _ 51.4" _ 14 __ 2.0, 1.0, 1.3, 1.9, 2.3, 1.5, 1.1, 1.0, 1.0, 1.1, 2.7, 2.4, 1.3, 1.1

1872 _ 44.0" _14 __ 1.1, 2.3, 1.3, 1.3, 1.0, 1.2, 1.6, 1.1, 2.9, 1.3, 1.9, 1.6, 1.6, 1.4

1873 _ 48.0" _ 10 __ 1.4, 1.2, 1.3, 1.2, 1.6, 1.3, 1.4, 1.7, 4.8, 2.0

1874 _ 45.8" _ 11 __ 3.1, 1.2, 1.9, 1.4, 1.9, 1.1, 3.3, 3.0, 1.0, 1.2, 1.9

1875 _ 40.7" __ 7 __ 1.8, 1.5, 1.0, 2.6, 2.0, 1,4, 1.3 

1876 _ 41.8" _ 11 __ 1.0, 1.9, 4.3, 1.7, 1.2, 1.4, 1.6, 2.1, 3.4, 1.5, 1.3

1877 _ 40.2" __ 5 __ 1.4, 1.3, 2.9, 4.1, 1.9

1878 _ 48.7" _ 14 __ 1.1, 2.4, 1.2, 1.2, 1.6, 2.9, 3.3, 1.1, 2.5, 2.0, 1.7, 1.0, 1.6, 1.4

1879 _ 39.0" _ 10 __ 1.2, 1.1, 1.2, 1.3, 1.3, 1.0, 1.0, 4.0, 1.0, 1.1

1880 _ 36.6" __ 8 __ 1.1, 1.4, 1.7, 1.4, 1.9, 1.1, 1.2, 1.2

1881 _ 36.3" __ 6 __ 1.7, 1.3, 1.5, 2.2, 1.3, 2.1

1882 _ 45.3" __ 6 __ 1.1, 1.4, 2.6, 1.2, 2.3, 8.3

1883 _ 35.8" __ 5 __ 1.3, 1.9, 1.0, 1.3, 1.1  

1884 _ 52.3" _ 17 __ 1.1, 1.2, 1.1, 1.1, 1.3, 4.3, 1.1, 1.6, 1.4, 1.8, 1.1, 1.2, 1.0, 1.1, 1.6, 1.3, 1.9

1885 _ 35.4" _ 10 __ 1.7, 1.4, 1.2, 2.4, 1.5, 1.1, 1.3, 1.1, 1.2, 1.2

1886 _ 39.4" __ 8 __ 1.0, 2.7, 2.5, 2.3, 1.5, 1.2, 1.6, 1.1

1887 _ 44.0" _ 11 __ 1.0, 1.5, 1.8, 1.3, 2.6, 2.0, 1.8, 1.7, 1.6, 1.1, 1.2

1888 _ 53.3" _ 19 __ 2.1, 1.1, 1.6, 1.5, 1.1, 1.1, 1.1, 1.6, 1.2, 1.0, 2.2, 4.2, 1.7, 1.1, 1.3, 2.1, 1.4, 1.2, 2.3

1889 _ 58.2" _ 17 __ 1.4, 1.2, 1.0, 1.9, 1.5, 1.0, 2.0, 2.7, 1.7, 2.3, 1.7, 1.1, 1.9, 1.5, 3.7, 1.1, 2.2

1890 _ 45.6" _ 10 __ 1.3, 1.1, 1.5, 1.0, 1.4, 1.2, 1.6, 1.6, 1.4, 1.9

1891 _ 39.4" __ 5 __ 1.3, 1.3, 1.3, 1.9, 1.4

1892 _ 35.6" __ 6 __ 1.0, 1.4, 1.2, 1.6, 1.3, 2.4

1893 _ 48.3" _ 15 __ 1.3, 1.6, 1.4, 1.7, 1.1, 2.0, 1.1, 2.0, 1.1, 1.3, 2.5, 3.6, 2.5, 1.4, 1.2

1894 _ 40.4" __ 9 __ 1.3, 4.3, 1.7, 1.7, 1.1, 1.6, 1.1, 1.5, 1.3

1895 _ 35.4" _ 12 __ 2.0, 1.6, 1.1, 1.2, 1.1, 1.1, 1.7, 1.1, 1.2, 1.1, 1.2, 1.1

1896 _ 42.0" _ 11 __ 2.7, 2.3, 1.1, 2.4, 1.2, 2.0, 1.2, 1.1, 1.4, 1.0, 1.2

1897 _ 44.6" _ 13 __ 1.5, 1.1, 1.3, 1.3, 1.9, 2.3, 1.2, 2.2, 2.3, 1.0, 1.2, 1.1, 2.2

1898 _ 47.9" _ 11 __ 1.0, 3.1, 1.4, 1.4, 1.1, 1.1, 2.2, 1.2, 1.1, 1.3, 1.0, 

1899 _ 38.6" _ 10 __ 1.4, 1.6, 1.0, 1.3, 1.4, 1.8, 2.3, 2.1, 1.1, 1.0

1900 _ 41.2" _ 14 __ 1.5, 1.2, 1.2, 1.3, 2.0, 1.0, 1.2, 1.3, 1.3, 1.1, 1.4, 1.1, 1.9, 1.4

1901 _ 48.7" _ 16 __ 2.9, 1.2, 1.4, 1.8, 1.2, 1.3, 1.4, 3.1, 1.3, 1.1, 1.4, 2.5, 1.2, 1.1, 1.2, 2.5

1902 _ 52.8" _ 14 __ 1.9, 1.1, 1.3, 1.7, 1.6, 3.1, 2.3, 1.3, 1.2, 1.6, 1.6, 2.0, 2.0, 1.4

1903 _ 58.5" _ 13 __ 1.3, 1.1, 1.0, 2.2, 2.6, 1.2, 2.0, 1.4, 1.2, 1.6, 4.3, 7.3, 1.3

1904 _ 41.6" __ 8 __ 1.5, 1.1, 1.2, 3.6, 2.0, 1.9, 1.4, 1.3

1905 _ 37.4" _ 13 __ 1.3, 1.1, 1.1, 1.2, 1.1, 1.2, 1.2, 2.5, 1.7, 1.1, 1.3, 1.0, 1.4

1906 _ 40.2" _ 12 __ 2.3, 1.1, 1.1, 2.3, 1.8, 1.1, 2.6, 1.2, 1.1, 1.1, 1.8, 1.3

1907 _ 46.7" _ 12 __ 1.2, 1.5, 1.2, 2.3, 2.1, 2.1, 1.1, 1.7, 1.4, 1.3, 1.3, 1.4

1908 _ 41.1" _ 12 __ 1.3, 1.5, 1.3, 2.2, 3.8, 1.2, 1.9, 1.5, 1.1, 1.3, 3.2, 2.0

1909 _ 41.7" __ 8 __ 1.5, 1.4, 2.1, 2.7, 1.8, 2.4, 4.8, 3.0

1910 _ 33.7" _ 10 __ 1.2, 1.2, 1.4, 1.2, 2.2, 1.1, 1.2, 2.5, 2.6, 1.1

1911 _ 48.8" _ 12 __ 1.8, 1.3, 1.0, 1.1, 1.5, 1.7, 3.8, 1.3, 2.5, 1.3, 1.5, 1.2

1912 _ 45.6" _ 13 __ 1.4, 1.8, 1.8, 1.4, 1.3, 1.0, 1.2, 1.0, 1.0, 3.0*, 2.3, 1.1, 1.7

1913 _ 58.0" _ 20 __ 1.2, 1.0, 1.9, 1.4, 1.1, 1.1, 1.3, 1.3, 1.0, 1.3, 1.2, 3.1, 1.0, 3.5, 5.0, 1.1, 1.1, 3.3, 1.2, 1.6

1914 _ 40.1" _ 11 __ 1.1, 1.5, 1.6, 3.0*, 1.8, 1.1, 1.9, 1.7, 1.1, 1.8, 1.2

1915 _ 45.7" _ 14 __ 2.4, 1.1, 1.1, 2.1, 1.5, 1.1, 1.1, 1.1, 1.9, 1.2, 3.3, 1.5, 1.7, 1.1

1916 _ 37.9" __ 7 __ 2.1, 1.4, 2.7, 1.5, 1.1, 1.1, 1.1

1917 _ 41.0" __ 8 __ 1.1, 1.1, 2.5, 1.5, 2.5, 1.6, 1.2, 1.5

1918 _ 38.3" _ 11 __ 1.0, 1.2, 1.8, 1.9, 2.0, 1.2, 2.0, 1.0, 1.3, 1.0, 1.3

1919 _ 53.3" _ 14 __ 1.2, 1.2, 1.1, 1.3, 1.8, 1.6, 1.1, 1.4, 2.0, 1.8, 1.4, 1.2, 1.7, 2.7

1920 _ 53.2" _ 17 __ 1.7, 1.3, 1.4, 1.8, 1.1, 1.3, 1.3, 1.0, 1.8, 2.0, 1.5, 1.1, 2.2, 1.3, 1.7, 1.1, 1.2

1921 _ 37.8" __ 7 __ 1.8, 2.7, 1.2, 1.1, 1.0, 2.2, 1.3

1922 _ 44.7" _ 11 __ 1.4, 1.1, 1.2, 1.0, 1.5, 2.1, 1.2, 1.5, 1.3, 1.8, 1.3

1923 _ 40.6" __ 7 __ 1.7, 1.1, 1.5, 2.5, 1.5, 1.8, 1.1

1924 _ 41.7" _ 17 __ 1.1, 1.4, 1.3, 2.2, 1.0, 1.3, 1.4, 2.2, 1.0, 1.3, 1.1, 1.0, 2.2, 2.3, 1.4, 1.9, 1.2

1925 _ 41.4" __ 7 __ 1.9, 1.5, 1.5, 1.2, 2.1, 1.1, 1.6

1926 _ 47.8" _ 11 __ 1.7, 1.2, 1.4, 1.6, 3.3, 1.1, 1.4, 2.2, 1.2, 1.0, 1.4

1927 _ 56.1" _ 18 __ 1.1, 1.0, 1.4, 1.1, 1.7, 1.1, 1.7, 2.0, 2.6, 1.6, 1.0, 3.8, 1.1, 2.0, 1.9, 1.8, 1.4, 1.1

1928 _ 45.6" _ 16 __ 1.0, 1.4, 1.0, 1.2, 1.0, 1.0, 1.0, 1.2, 1.0, 1.2, 1.7, 1.1, 1.3, 1.2, 1.3, 1.1

1929 _ 40.4" __ 7 __ 1.7, 1.9, 1.6, 1.1, 2.2, 1.4, 1.1

1930 _ 39.0" __ 8 __ 1.2, 1.1, 2.8, 1.4, 3.0, 1.1, 1.9, 1.4

1931 _ 36.1" __ 5 __ 1.6, 1.3, 1.6, 1.0, 1.5

1932 _ 43.9" _ 13 __ 1.3, 1.3, 2.4, 1.1, 2.1, 1.3, 1.4, 1.2, 2.1, 1.2, 1.7, 1.3, 2.0

1933 _ 53.5" _ 10 __ 1.5, 2.1, 2.2, 2.2, 1.1, 2.2, 1.6, 2.8, 4.2, 1.0

1934 _ 49.8" _ 13 __ 1.1, 2.2, 1.6, 1.1, 1.2, 1.9, 1.6, 1.2, 4.9, 1.4, 1.5, 1.7, 1.2

1935 _ 33.9" __ 7 __ 1.1, 1.5, 1.0, 1.1, 1.2, 1.6, 1.2

1936 _ 49.8" _ 15 __ 1.4, 1.4, 2.4, 1.5, 1.4, 1.3, 1.6, 1.5, 1.6, 1.0, 3.9, 1.0, 2.3, 1.5, 1.4

1937 _ 53.0" _ 15 __ 1.1, 1.2, 1.0, 1.2, 1.1, 1.4, 1.2, 2.7, 1.1, 2.2, 1.5, 1.3, 1.3, 3.1, 2.1

1938 _ 48.5" __ 9 __ 1.4, 1.4, 1.1, 1.7, 2.4, 1.5, 1.8, 1.7, 4.1

1939 _ 38.6" _ 12 __ 1.0, 1.2, 1.5, 1.6, 1.2, 1.3, 1.0, 1.9, 2.3, 1.1, 1.4, 1.4

 

1940 _ 45.1" _ 10 __ 2.1, 1.9, 1.1, 1.5, 3.1, 1.9, 1.5, 2.4, 1.3, 1.2

1941 _ 39.0" _ 10 __ 1.2, 3.0*, 1.8, 1.1, 1.1, 1.7, 1.8, 2.3, 1.6, 3.0* 

1942 _ 48.5" _ 14 __ 1.1, 1.0, 1.6, 1.4, 1.5, 1.1, 1.3, 1.1, 4.1, 1.0, 1.6, 1.3, 1.2, 1.2

1943 _ 36.7" __ 9 __ 1.3, 1.9, 1.8, 1.0, 1.5, 1.2, 1.7, 3.4, 1.1

1944 _ 45.0" __ 9 __ 1.4, 1.9, 1.7, 1.2, 1.6, 3.9, 3.8, 1.3, 1.7

1945 _ 45.0" _ 10 __ 1.7, 1.3, 1.2, 1.3, 1.1, 1.3, 3.1, 1.1, 1.3, 1.1

1946 _ 38.4" _ 13 __ 1.2, 1.1, 1.7, 1.3, 2.1, 2.2, 1.2, 2.1, 2.7, 1.1, 1.2, 1.3, 1.3

1947 _ 40.8" __ 8 __ 1.0, 1.1, 2.0, 1.3, 1.5, 1.8, 1.6, 2.4

1948 _ 46.9" _ 11 __ 1.2, 1.0, 1.6, 1.0, 2.5, 1.4, 1.3, 1.6, 1.5, 1.5, 1.4

1949 _ 36.2" __ 5 __ 1.2, 1.2, 1.1, 1.3, 1.1

_______________________________________________

3.0* _ these amounts were rounded upwards from 2.95 to 2.99 values. 

 

great job Roger...where did you get hourly precipitation for these events?...some years are not available...

[Roger Smith]

I only listed them by daily totals, there may be others that reach 1.0" by 24 consecutive hours. 

 

[uncle W]

yesterday and today totaled 4.06"...4.1" rounded...there was only a few hours with no rain reported so both days can be as one...

[Roger Smith]

Okay, I wasn't aware that your list had any values that were different from 24 hour calendar day, so take my list with that caveat, for example the last three entries of 1938 are the total rainfall from the frontal system and Long Island Express hurricane on three consecutive days.  My method is going to inflate the number of events like that, but at the same time it will miss two consecutive days that reached 1.0" without either of them being that high. As most of the events are just one-day rainfalls with nothing much on either side of them, I would say it at least gives an indication of how past years compare. 1949 looks like a very dry year. I have blocked out zero-rainfall and low-rainfall periods in my file and will post a list of the longest dry spells some time, the other side of the coin. 

[Roger Smith]

Longest Dry Spells at NYC

These lists rank the longest absolute dry spells (no precip over a trace amount), and extended dry spells (low precip totals that do not exceed .01" for every two consecutive days in the EDS). 

____ ABSOLUTE DRY SPELLS ________________ EXTENDED DRY SPELLS _______

Rank _ Year ___ Days ___ Duration __________ Rank _ Year ___ Days, amt ___ Duration (longest ADS)

_01 ___ 1924 ___ 36 ___ Oct 9 to Nov 13 _____ 01 ___ 1995 ___ 46 (.18") __ July 29 to Sep 12 (24, 12)

_02 ___ 1941 ___ 28 ___ Sep 5 to Oct 2 ______ 02 ___ 1924 ___ 44 (.01") __ Oct 9 to Nov 21 (36)

t03 ___ 1884 ___ 27 ___ Sep 1 to 27 __________03 ___ 1952 ___ 43 (.21") __ Oct 3 to Nov 14 (8, 8)

t03 ___ 1910 ____27 ___ Sep 10 to Oct 6 _____t04___ 1901 ___ 40 (.20") __ Oct 15 to Nov 23 (16, 11)

t05 ___ 1939 ___ 26 ___ Nov 6 to Dec 1 _____ t04___ 1949 ___ 40 (.12") __ May 27 to July 5 (19, 14)

t05 ___ 1973 ___ 26 ___ Oct 3 to 28 _________t06 ___ 1874 ___ 38 (.14") __ Oct 11 to Nov 17 (10, 9)

t05 ___ 2001 ___ 26 ___ Apr 22 to May 17 ___ t06 ___ 1905 ___ 38 (.19") __ Oct 21 to Nov 27 (12)

t08 ___ 1942 ___ 25 ___ Apr 11 to May 5 ____ t06 ___ 1910 ____ 38 (.19") __ Sep 7 to Oct 14 (27)

t08 ___ 1968 ___ 25 ___ Feb 4 to 28 ________ t06 ___ 2001 ___ 38 (.17") __ Oct 17 to Nov 23 (17, 15)

t 10 ___ 1922 ___ 24 ___ Sep 13 to Oct 6 _____t10 ___ 1882 ___ 34 (.08") __ July 20 to Aug 22 (13)

t 10 ___ 1980 ___ 24 ___ Jan 23 to Feb 15 ___ t10 ___ 1899 ___ 34 (.17") __ May 12 to Jun 14 (15)

t 10 ___ 1963 ___ 24 ___ Oct 4 to 27 _________t12 ___ 1881 ___ 33 (.10") __ Aug 8 to Sep 9 (11)

t 10 ___ 1995 ___ 24 ___ Aug 7 to 30 _________t12 ___ 1943 ___ 33 (.13") __ Nov 23 to Dec 25 (13,19)

t 14 ___ 1877 ___ 23 ___ Dec 7 to 29 _________t12 ___ 1999 ___ 33 (.16") __ July 3 to Aug 4 (9)

t 14 ___ 1991 ___ 23 ___ Oct 18 to Nov 9 _____t15 ___ 1886 ___ 32 (.13") __ Aug 8 to Sep 8 (14)

t_14 ___ 2015 ___ 23 ___ Apr 23 to May 15 ___t15 ___ 1886 ___ 32 (.06") __ Sep 24 to Oct 25 (20)

_ 17 ___ 1988 ___ 22 ___ Nov 29 to Dec 20 ___t15 ___ 1947 ___ 32 (.11") __ Sep 27 to Oct 28 (12, 9)

t 18 ___ 1870 ___ 21 ___ Aug 27 to Sep 16 ____t15 ___ 1963 ___ 32 (.14") __ Sep 30 to Oct 31 (24)

t 18 ___ 1895 ___ 21 ___ Feb 9 to Mar 1 ______ t19 ___ 1903 ___ 31 (.11") __ May 7 to June 6 (12,15)

t 18 ___ 1904 ___ 21 ___ Aug 23 to Sep 12 ____t19 ___ 1955 ___ 31 (.12") __ Nov 21 to Dec 21 (14)

t 18 ___ 1908 ___ 21 ___ Sep 7 to Sep 27 _____t19 ___ 1966 ___ 31 (.09") __ June 18 to July 18 (11)

t 18 ___ 1917 ____21 ___ Oct 31 to Nov 20 ____t19 ___ 1989 ___ 31 (.16") __ Nov 29 to Dec 29 (14, 14)

t 18 ___ 1962 ___ 21 ___ June 27 to July 17 __ 23 ___ 1909 ___ 30 (.14") __ Oct 24 to Nov 22 (12)

t 24 ___ 1886 ___ 20 ___ Sep 24 to Oct 13 ___t24 ___ 1877-78_29 (.04") __ Dec 6 to Jan 3 (23)

t 24 ___ 1944 ___ 20 ___ Aug 23 to Sep 11 ___t24 ___ 1880 ___ 29 (.11") __ May 1 to 29 (17)

t 24 ___ 1999 ___ 20 ___ May 25 to June 13 __t24 ___ 1884 ___ 29 (.08") __ Aug 31 to Sep 28 (27)

t 27 ___ 1914 ___ 19 ___ Sep 26 to Oct 14 ____t24 ___ 1973 ___ 29 (.03") Sep 30 to Oct 28 (26) 

t 27 ___ 1917 ___ 19 ___ Sep 9 to 27 __________t24 ___ 1985 ___ 29 (.14") __ Oct 6 to Nov 3 (10)

t 27 ___ 1938 ___ 19 ___ Aug 12 to 30 ________t24 ___ 2001 ___ 29 (.07") Apr 22 to May 20 (26)

t 27 ___ 1943 ___ 19 ___ Dec 7 to 25 _________t30 ___ 1910 ___ 28 (.11") __ June 19 to July 16 (9)

t 27 ___ 1949 ___ 19 ___ May 30 to Jun 17 ___ t30 ___ 1941 ___ 28 (.00") __ Sep 5 to Oct 2 (28)

t 27 ___ 1976 ___ 19 ___ Apr 3 to 21 __________t30 ___ 1964 ___ 28 (.11") __ Oct 22 to Nov 18 (14,10)

t 27 ___ 1978 ___ 19 ___ Oct 28 to Nov 15 ____t30 ___ 1976 ___ 28 (.02") __ Nov 1 to 28 (9, 18)

t 27 ___ 2007 ___ 19 ___ Aug 22 to Sep 9 ____t30 ___ 2003 ___28 (.14") __ Jan 7 to Feb 3 (8)

t 35 ___ 1894 ___ 18 ___ Aug 21 to Sep 7 _____t35 ___ 1908 ___ 27 (.09") __ June 17 to July 13 (9,9)

t 35 ___ 1903 ___ 18 ___ Apr 16 to May 3 _____t35 ___ 1955 ___ 27 (.05") __ July 11 to Aug 6 (13, 10)

t 35 ___ 1976 ___ 18 ___ Nov 11 to 28 ________ t35 ___ 1980 ___ 27 (.08") __ Jan 20 to Feb 15 (24)

t 35 ___ 1977 ___ 18 ___ Apr 6 to 23 _________ t35 ___ 2005 ___ 27 (.09") __ July 18 to Aug 13 (11)

t 35 ___ 1980 ___ 18 ___ June 11 to 28 _______ t39 ___ 1902 ___ 26 (.09") __ Oct 29 to Nov 22 (14, 9)

t 35 ___ 2017 ___ 18 ___ Sep 20 to Oct 7 _____ t39 ___ 1915 ___ 26 (.02") __ Mar 8 to Apr 2 (15, 10)

t 41 ___ 1875 ___ 17 ___ Aug 24 to Sep 9 _____ t39 ___ 1916 ___ 26 (.12") __ Aug 12 to Sep 6 (10)

t 41 ___ 1880 ___ 17 ___ May 1 to 17 __________t39 ___ 1931 ___ 26 (.08") __ Nov 1 to 26 (13)

t 41 ___ 1887 ___ 17 ___ May 8 to 24 _________ t39 ___ 1939 ___ 26 (.00") __ Nov 6 to Dec 1 (26)

t 41 ___ 1908 ___ 17 ___ Nov 19 to Dec 5 _____t39 ___ 1950 ___ 26 (.09") __ Sep 14 to Oct 9 (16)

t 41 ___ 1939 ___ 17 ___ Oct 4 to 20 _________ t45 ___ 1900 ___ 25 (.06") __ Dec 5 to 29 (16)

t 41 ___ 1945 ___ 17 ___ Aug 7 to 23 _________ t45 ___ 1914 ___ 25 (.03") __ Aug 30 to Sep 23 (15)

t 41 ___ 1946 ___ 17 ___ Sep 4 to 20 _________ t45 ___ 1942 ___ 25 (.00") __ Apr 11 to May 5 (25)

t 41 ___ 1948 ___ 17 ___ Aug 23 to Sep 8 _____ t45 ___ 1981 ___ 25 (.09") __ Jan 8 to Feb 1 (15)

t 41 ___ 1945 ___ 17 ___ Aug 7 to 23 __________t45 ___ 2004 ___ 25 (.11") __ Feb 8 to Mar 3 (13)

t 41 ___ 1961 ___ 17 ___ Aug 28 to Sep 13 ____ t 45 ___ 2005 ___ 25 (.08") __ Aug 20 to Sep 13 (13)

t 41 ___ 1986 ___ 17 ___ Feb 22 to Mar 10 ____ t51 ___ 1869 ___ 24 (.06") __ Oct 24 to Nov 16 (11)

t 41 ___ 1999 ___ 17 ___ Nov 3 to 19 __________ t51 ___ 1874 ___ 24 (.02") __ Aug 23 to Sep 15 (12,11)

t 41 ___ 2001 ___ 17 ___ Oct 17 to Nov 2 ______ t51 ___ 1904 ___ 24 (.06") __ Aug 21 to Sep 13 (21)

t 41 ___ 2010 ___ 17 ___ Aug 26 to Sep 11 _____t51 ___1909 ___ 24 (.06") __ June 29 to July 22 (8)

t 55 ___ 1877 ___ 16 ___ Sep 18 to Oct 3 ______t51 ___ 1922 ___ 24 (.00") __ Sep 13 to Oct 6 (24)

t 55 ___ 1881 ___ 16 ___ July 14 to 29 _________t51 ___ 1959 ___ 24 (.04") __ Sep 4 to 27 (16)

t 55 ___ 1895 ___ 16 ___ June 7 to 22 _________t51 ___ 1968 ___ 24 (.07") __ Sep 12 to Oct 5 (12)

t 55 ___ 1900 ___ 16 ___ Dec 12 to 27 _________t51 ___ 1972 ___ 24 (.12") __ July 22 to Aug 14 (11) 

t 55 ___ 1901 ___ 16 ___ Oct 20 to Nov 4 ______t51 ___ 2013 ___ 24 (.11") __ Oct 8 to 31 (11)

t 55 ___ 1902 ___ 16 ___ Apr 10 to 25 _________ t51___ 2015 ___ 24 (.05") __ Apr 22 to May 15 (23)

t 55 ___ 1923 ___ 16 ___ Sep 24 to Oct 9 _____ t61 ___ 1872 ___ 23 (.10") __ Feb 15 to Mar 8 (10)

t 55 ___ 1950 ___ 16 ___ Sep 23 to Oct 8 _____ t61 ___ 1885 ___ 23 (.07") __ Sep 10 to Oct 2 (12)

t 55 ___ 1959 ___ 16 ___ Sep 12 to 27 ________ t61 ___ 1894 ___ 23 (.08") __ Aug 16 to Sep 7 (18)

t 55 ___ 1964 ___ 16 ___ May 16 to 31 ________ t61 ___ 1896 ___ 23 (.11") __ Jan 1 to 23 (9) 

t 55 ___ 1967 ___ 16 ___ May 30 to June 14 ___t61 ___ 1964 ___ 23 (.09") __ Aug 19 to Sep 10 (12)

t 55 ___ 1970 ___ 16 ___ Feb 16 to Mar 3 ______t61 ___ 1991 ___ 23 (.00") __ Oct 18 to Nov 9 (23)

t 55 ___ 1987 ___ 16 ___ Aug 11 to 26 _________t61 ___ 1999 ___ 23 (.08") May 25 to June 16 (20)

t 55 ___ 1988 ___ 16 ___ Aug 1 to 16 __________t68 ___ 1870 ___ 22 (.03") __ Aug 26 to Sep 16 (21)

t 55 ___ 2020 ___ 16 ___ Sep 11 to 26 ________ t68 ___ 1899 ___ 22 (.10") __ Nov 20 to Dec 11 (11)

t 70 ___ 1876 ___ 15 ___ June 25 to July 9 ____ t68 ___ 1917 ___ 22 (.01") __ Oct 31 to Nov 21 (21)

t 70 ___ 1876 ___ 15 ___ Aug 18 to Sep 1 ______t68 ___ 1968 __ 22 (.08") Apr 2 to 23 (13)

t 70 ___ 1886 ___ 15 ___ June 25 to July 9 ____t68 ___ 1973 ___ 22 (.11") __ Nov 2 to 23 (14)

t 70 ___ 1895 ___ 15 ___ Oct 16 to 30 _________t68 ___ 1981 ___ 22 (.11") Aug 17 to Sep 7 (14)

t 70 ___ 1899 ___ 15 ___ Apr 18 to May 1 ______t68 ___ 1988 ___ 22 (.00") __ Nov 29 to Dec 20 (22)

t 70 ___ 1899 ___ 15 ___ May 30 to June 13 ___ t68 ___ 1999 ___ 22 (.10") __ Nov 3 to 24 (17)

t 70 ___ 1903 ___ 15 ___ May 23 to June 6 ____t76 ___ 1877 ___ 21 (.06") __ Feb 3 to 23 (15)

t 70 ___ 1908 ___ 15 ___ May 31 to June 14 ____t76 ___ 1895 ___ 21 (.00") __ Feb 9 to Mar 1 (21)

t 70 ___ 1908 ___ 15 ___ Oct 11 to 25 __________t76 ___ 1904 ___ 21 (.05") __ Nov 14 to Dec 4 (12)

t 70 ___ 1909 ___ 15 ___ Aug 21 to Sep 4 ______t76 ___ 1908 ___ 21 (.00") __ Sept 7 to 27 (21)

t 70 ___ 1912 ___ 15 ___ June 26 to July 10 ____t76 ___ 1908 ___ 21 (.10") __ Nov 16 to Dec 6 (17)

t 70 ___ 1913 ___ 15 ___ May 1 to 15 ___________t76 ___ 1923 ___ 21 (.04") __ Sep 24 to Oct 14 (16)

t 70 ___ 1914 ___ 15 ___ Sep 9 to 23 ___________t76 ___ 1935 ___ 21 (.05") __ May 8 to 28 (14)

t 70 ___ 1915 ___ 15 ___ Mar 8 to 22 ___________t76 ___ 1940 ___ 21 (.09") __ Oct 9 to 29 (13)

t 70 ___ 1925 ___ 15 ___ Aug 22 to Sep 5 ______t76 ___ 1962 ___ 21 (.00") __ June 27 to July 17 (21) 

t 70 ___ 1930 ___ 15 ___ July 30 to Aug 13 _____t76 ___ 2000 ___ 21 (.01") __ Oct 19 to Nov 8 (10, 10)

t 70 ___ 1932 ___ 15 ___ July 5 to 19 ___________t76 ___ 2006 ___ 21 (.05") __ Mar 13 to Apr 2 (11)

t 70 ___ 1953 ___ 15 ___ Aug 18 to Sep 1 _______t76 ___ 2010 ___ 21 (.11") __  May 19 to June 8 (9)

t 70 ___ 1964 ___ 15 ___ June 22 to July 7 _____ t76 ___ 2012 ___ 21 (.10") __ Mar 4 to 24 (7)

t 70 ___ 1968 ___ 15 ___ July 4 to 18 ___________ t89 ___ 1879 ___ 20 (.02") __ Sep 29 to Oct 18 (13)

t 70 ___ 1974 ___ 15 ___ Sep 30 to Oct 14 ______ t89 ___ 1886 ___ 20 (.07") __ Feb 27 to Mar 18 (13)

t 70 ___ 1978 ___ 15 ___ Aug 13 to 27 __________ t89 ___ 1887 ___ 20 (.01") __ May 8 to 27 (17)

t 70 ___ 1979 ___ 15 ___ Oct 13 to 27 ___________t89 ___ 1892 ___ 20 (.05") __ Sep 15 to Oct 4 (12)

t 70 ___ 1980 ___ 15 ___ Aug 16 to 30 __________ t89 ___ 1897 ___ 20 (.02") __ Sep 3 to 22 (10)

t 70 ___ 1981 ___ 15 ___ Jan 17 to 31 ___________ t89 ___ 1901 ___ 20 (.10") __ Feb 10 to Mar 1 (8)

t 70 ___ 2001 ___ 15 ___ Nov 5 to 19 ____________t89 ___ 1910 ___ 20 (.09") __ Nov 5 to 24 (7)

t 70 ___ 2015 ___ 15 ___ Sep 14 to 28 ___________t89 ___ 1914 ___ 20 (.06") __ Sep 26 to Oct 15 (19)

t 70 ___ 2020 ___ 15 ___ June 12 to 26 _________ t89 ___ 1944 ___ 20 (.00") __ Aug 23 to Sep 11 (20)

t 98 ___ all at 14 days _________________________ t89 ___ 1963 ___ 20 (.10") __ Mar 27 to Apr 15 (7)

_______________________________________________ t89 ___ 1968 ___ 20 (.04") __ June 29 to July 18 (15)

_______________________________________________ t89 ___ 1971 ___ 20 (.09") __ Apr 8 to 27 (13)

_______________________________________________ t89 ___ 1976 ___ 20 (.03") __ Apr 2 to 21 (19)

_______________________________________________ t89 ___ 1978 ___ 20 (.05") __ Oct 28 to Nov 16 (19)

_______________________________________________ t89 ___1985-86_ 20 (.07") __ Dec 14 to Jan 2 (6)

_______________________________________________ t89 ___ 1986 ___ 20 (.08") __ Mar 16 to Apr 4 (7, 7)

_______________________________________________ t89 ___ 2010 ___ 20 (.03") __ June 23 to July 12 (10)

_______________________________________________ t89 ___ 2020 ___ 20 (.05") __ June 7 to 26 (15)

__________________________________________________________________

Most of the EDS entries, if not extensions of the first list of absolute dry spells, contain 9-15 day ADS intervals,

and a few entries such as the last one add no days at either end of a long ADS, so the EDS is the original ADS. 

A few EDS have two ADS in their duration, for example 24d EDS in 1874 had 12d and 11d ADS separated by .02"

21 days from Oct 19 to Nov 8 2000 had only .01" (on Oct 29, dividing this into two ten-day dry spells).

Two long dry spells in Sep-Oct 1914 were separated by only .28" in two days, and narrowly missed combining for an eligible 49-day EDS. 

The average year has 6.4 EDS which include 3.6 ADS. The average EDS is 15 days long. Those associated with an ADS are on average about 14 days long. As the amount of precipitation varies from nil to .10" per 20 days, the total precipitation in all these dry spells is probably around 50" (two fairly dry years, but the total length of these dry spells is about 40 years).

The average year has 88.7 days within the various dry spells, the range is 18 (2014) to 159 (1909). 

1945 and 2014 had the fewest days in qualifying dry years, however, they were not overly wet years, their cycle of wet and dry seemed to be closer to 7-8 days. Considering how much rain fell in 1983, the year managed an almost average output of dry spells, mainly in February and the late autumn. 

This is a frequency distribution of the months involved in the 97 longest absolute dry spells (15 or more days), frequency assigned by nearest 0.1 portions when the dry spell overlaps two months. 

JAN _ FEB _ MAR _ APR _ MAY _ JUN _ JUL _ AUG _ SEP _ OCT _ NOV _ DEC

1.3 ___ 3.8 __ 1.9 ___ 6.3 __ 7.0 __ 9.3 __ 6.5 ___15.9 __19.2 __ 13.9 __ 7.8 __ 4.1

This frequency distribution shows that late summer into autumn is favored for long dry spells, winter and early spring least favored, with a slight secondary peak around late May through June. About half of the dry spell frequency is in the period August to October. 

The following is a graph of the number of days each year (1869-2020) within qualifying dry spells. There are peaks around the 1880s, 1900s, 1960s and (early) 1980s. 

Peak years from graph: 

_______ 1885 ____ 1909 ____________ 1965 __ 1980 __ (2010)

 

[uncle W]

9 hours ago, Roger Smith said:

Okay, I wasn't aware that your list had any values that were different from 24 hour calendar day, so take my list with that caveat, for example the last three entries of 1938 are the total rainfall from the frontal system and Long Island Express hurricane on three consecutive days.  My method is going to inflate the number of events like that, but at the same time it will miss two consecutive days that reached 1.0" without either of them being that high. As most of the events are just one-day rainfalls with nothing much on either side of them, I would say it at least gives an indication of how past years compare. 1949 looks like a very dry year. I have blocked out zero-rainfall and low-rainfall periods in my file and will post a list of the longest dry spells some time, the other side of the coin. 

rain events are like snow events...you can get 5" on a Sunday morning and another 5" Monday afternoon and it will show 5" for both days...but it really was two 5" events...   10" over two days...I looked at the hourly rainfall which was very tedious...if there was a dry period between I did not add them together unless it came in one callander day...I did not see hourly totals for some years so I had to use daily totals...

[uncle W]

NYC picked up 1.4" of rain early this morning making it the eight 1" event so far this year...

[uncle W]

On 6/15/2021 at 12:35 PM, uncle W said:

these 1" events can come in a hour or over three days if the precip didn't stopped for a while...daily 1" days are all included regardles of time of precip...numbers are rounded off to the nearest tenth...events must reach 1.00"...0.99" is not counted...since 2017 I did not have hourly precip numbers...I estimated and used daily amounts...3" events have slackened off in the last few years...the last 4" event was a 5" event in 2014...1983 ha 29 1" or greater events...11 over 2"...1965 had only 5 events and none over 2"...

year...ann"# 1".....1....2....3....4....5....6....7....8....9...10..11..12..13..14..15..16..17..18..19..20..21..22..23..24..25..26..27..28..29

1950..36.9"..08..2.0 1.1 1.2 2.2 1.1 1.8 1.6 1.2

1951..44.4"..15..1.3 1.2 1.3 2.7 1.2 1.9 1.6 1.0 2.1 1.0 2.0 2.0 2.2 1.1 1.4

1952..41.5"..13..1.5 1.5 1.8 2.3 1.4 1.9 2.4 2.0 1.2 1.2 2.0.1.3 1.2

1953..45.2"..12..1.7 1.5 1.3 1.2 3.7 1.4 1.0 1.4 2.4 3.3 1.3 1.5

1954..35.6"..10..1.6 1.2 1.8 1.4 1.7 3.5 1.3 1.8 2.1 1.2

1955..39.9"..11..1.3 1.3 1.5 1.0 7.2 1.9 1.3 2.6 2.7 1.2 1.8

1956..36.3"..09..1.1 1.0 1.0 1.2 1.6 1.5 1.0 3.2 1.0

1957..36.5"..08..1.9 2.6 1.4 1.3 2.0 1.0 1.7 1.1

1958..40.9"..11..1.3 1.8 1.6 2.5 1.7 1.1 1.51.0 1.2 2.4 1.9

1959..38.8"..14..1.3 1.4 1.1 1.0 1.8 1.1 1.3 1.8 1.1 1.9 1.5 1.4 1.3 1.4

 

1960..46.4"..19..1.7 1.2 1.1 1.1 1.2 1.1 1.5 1.2 1.5 1.2 1.5 3.6 2.2 1.1 2.6 1.0 1.9 1.5 1.3

1961..39.3"..12..2.6 1.0 1.3 1.8 1.6 1.1 1.2 1.1 1.1 1.0 1.3 1.5

1962..37.2"..11..1.8 2.3 1.3 1.3 1.3 1.6 1.7 1.4 1.6 1.1 1.1

1963..34.3"..06..1.0 1.0 1.4 2.2 4.5 2.1

1964..33.0"..08..1.1 1.3 1.4 2.2 1.0 1.2 1.6 2.1

1965..26.1"..05..1.2 1.8 1.3 1.2 1.0

1966..39.9"..10..2.4 1.2 1.0 2.0 2.2 5.5 1.1 3.2 1.4 1.3

1967..49.1"..15..1.1 3.5 1.4 1.2 3.2 2.1 1.1 1.1 1.0 2.1 1.1 1.4 1.5 2.3 1.3

1968..43.6"..16..1.3 1.3 1.7 1.9 2.2 4.9 2.0 1.6 1.1 2.0 1.0 1.4 1.4 1.2 1.3 1.8

1969..48.5"..12..1.8 2.8 1.8 1.4 2.0 6.4 1.1 1.4 1.3 1.6 1.4 1.9

 

1970..35.3"..08..2.6 1.1 2.0 1.1 2.0 1.1 1.7 1.0

1971..56.8"..19..1.1 1.2 1.0 1.1 1.3 1.1 2.2 1.7 1.1 1.6 3.8 2.1 6.0 6.7 2.2 1.7 1.0 1.3 1.6

1972..67.0"..20..1.6 1.3 1.7 1.2 1.2 1.3 1.6 2.2 1.4 1.7 2.4 1.6 3.2 4.4 1.0 5.6 2.2 1.2 1.0 2.0

1973..57.2"..20..1.5 1.4 3.2 1.6 2.0 1.5 1.0 1.4 1.9 1.3 1.5 2.5 2.5 1.7 3.7 1.2 2.2 1.5 2.7 1.2

1974..47.7"..12..1.1 2.0 2.0 1.5 1.8 2.9 3.3 1.5 1.4 2.4 2.5 2.3

1975..61.2"..19..1.6 1.1 1.0 1.8 1.1 1.1 1.7 1.8 2.0 1.8 1.9 1.8 1.9 2.5 1.4 8.1 2.7 2.2 1.8

1976..41.3"..11..2.8 1.5 1.0 1.8 1.0 2.5 5.2 1.8 1.3 1.6 1.3 

1977..54.7"..15..1.3 1.8 1.7 1.5 3.4 2.0 2.0 1.3 2.9 2.0 1.1 9.2 1.1 1.0 1.2

1978..49.8"..17..1.2 1.4 1.9 1.5 2.3 1.1 1.4 2.0 3.6 2.2 1.1 2.9 2.9 1.4 1.0 2.5 1.7

1979..52.1"..17..1.1 1.8 4.0 2.5 1.8 2.9 1.0 1.0 3.6 1.0 2.6 1.3 2.3 1.3 1.2 1.4 1.1 

 

1980..44.6"..11..1.0 1.3 3.3 2.0 3.5 3.2 1.1 3.5 1.5 1.8 1.7 

1981..38.1"..13..1.1 2.6 1.1 1.7 1.8 1.4 1.8 1.6 1.7 1.1 1.6 1.5 1.3

1982..41.4"..16..1.0 2.7 1.3 1.5 1.1 1.9 1.1 1.3 1.0 1.7 1.8 2.2 1.9 1.6 1.7 1.1

1983..80.6"..29..1.7 1.3 1.5 3.4 1.1 1.8 1.5 1.3 1.9 1.4 4.3 2.1 1.1 1.3 1.5 2.3 2.7 2.8 1.5 1.3 3.2 3.4 3.0 1.5 1.7 1.8 1.8 3.7 2.2 1.5

1984..57.0"..18..1.8 1.0 2.4 2.6 4.4 1.8 1.2 5.4 1.5 3.7 3.1 1.2 1.4 1.5 1.9 1.3 1.2 1.2

1985..38.8"..12..1.1 2.5 1.6 1.1 1.4 1.2 2.2 1.1 3.6 1.9 2.8 1.2 

1986..43.0"..13..2.9 1.3 2.8 1.3 1.3 1.4 1.1 2.7 1.0 1.1 1.1 1.2 1.7

1987..46.4"..18..2.2 1.1 2.4 2.0 2.5 1.2 1.4 1.5 1.1 1.2 1.3 1.9 1.5 1.9 1.6 1.8 1.7 1.3

1988..44.7"..14..1.1 1.5 1.1 2.1 1.0 1.0 2.1 1.4 1.3 2.1 1.7 1.1 3.4 1.5

1989..65.1"..22..1.5 2.1 1.3 1.9 1.6 1.3 2.4 3.4 1.5 1.4 2.6 1.4 2.1 1.4 5.5 1.5 1.3 1.8 2.3 1.1 1.1 4.2 

 

1990..60.1"..19..1.4 1.6 1.2 1.1 1.4 1.6 1.7 2.9 2.5 1.1 3.8 4.6 1.5 1.0 1.8 2.5 1.7 2.2 1.1

1991..45.2"..13..1.6 2.5 2.4 1.4 2.0 1.0 1.9 3.0 2.6 1.2 1.5 1.3 2.1 

1992..43.4"..10..1.1 2.0 2.9 2.3 1.6 1.3 2.6 1.5 3.5 1.0

1993..44.3"..15..1.4 1.1 1.4 1.2 2.5 1.1 1.9 3.2 1.6 1.7 1.5 1.7 1.5 2.1 1.7

1994..47.4"..17..1.6 1.9 1.3 1.1 1.0 1.9 1.1 1.8 1.5 1.4 1.1 1.4 3.0 1.5 1.1 1.5 1.0

1995..40.4"..13..1.1 1.4 1.3 1.1 3.3 1.1 2.0 2.0 2.2 1.4 1.2 1.9 1.3

1996..56.2"..13..2.2 1.1 1.2 2.2 3.1 2.1 2.4 2.0 4.4 1.9 1.8 1.2 1.4

1997..43.9"..10..1.6 1.0 2.3 1.1 1.0 1.1 4.6 1.2 1.2 1.3

1998..48.7"..15..1.4 2.7 1.4 1.0 1.9 1.2 2.3 1.5 1.8 2.2 4.3 1.2 2.7 2.4 2.4

1999..42.5"..14..2.4 1.2 1.0 1.2 1.0 1.1 1.4 1.4 1.8 1.6 1.4 5.4 1.1 1.0

 

2000..45.4"..10..1.3 1.6 1.6 2.8 1.4 4.4 1.9 1.8 1.2 1.2

2001..35.9"..11..1.5 1.3 2.3 2.4 1.6 1.5 1.6 1.7 1.2 1.9 1.2

2002..45.2"..15..1.2 1.6 1.1 1.6 2.4 2.7 1.9 2.0 4.6 1.3 1.0 1.1 2.2 1.1 1.3

2003..58.6"..20..1.5 1.8 2.0 1.1 1.3 1.3 2.0 3.0 1.2 2.4 2.0 1.3 1.7 1.2 1.2 1.9 1.7 2.0 1.6 1.4

2004..52.0"..14..1.6 2.0 1.4 1.5 1.2 2.2 2.3 1.4 4.1 2.3 4.7 1.0 1.1 1.2

2005..56.0"..16..1.0 1.2 1.1 3.0 1.8 1.1 1.5 1.5 3.1 4.5 8.6 1.1 2.4 1.4 1.7 1.7

2006..59.9"..20..1.8 1.3 1.9 3.6 1.6 1.0 4.5 1.5 1.1 1.6 2.0 2.5 1.4 1.7 1.9 1.1 2.5 3.6 1.9 1.3

2007..61.7"..22..1.5 1.4 2.6 2.4 1.4 8.4 2.0 3.9 1.2 1.3 1.0 1.6 2.3 1.1 2.5 1.3 1.3 1.2 1.6 1.7 1.3 1.0

2008..53.6"..15..1.3 1.6 2.5 2.0 1.2 1.2 1.3 2.0 1.7 1.2 2.2 3.3 2.5 2.0 3.6

2009..53.6"..17..1.3 1.8 1.2 1.1 1.0 1.9 2.3 1.1 1.4 1.5 1.1 1.2 2.0 1.9 1.2 1.5 2.1

 

2010..49.4"..20..1.3 1.3 1.7 3.2 4.6 1.4 4.3 2.3 1.3 1.1 2.7 1.0 1.7 1.1 2.5 1.1 1.1 1.4 1.4 2.0

2011..72.8"..21..1.3 2.1 1.4 2.1 2.0 1.5 1.8 2.9 1.8 1.1 2.1 5.8 1.2 6.9 5.3 1.2 1.1 2.0 1.6 2.0 1.0 

2012..38.5"..09..1.5 2.9 1.6 1.3 1.8 1.5 2.0 1.2 1.6

2013..46.3"..15..1.5 1.7 1.0 3.0 1.1 2.3 1.7 4.8 1.8 1.6 1.6 1.2 2.5 1.5 1.2

2014..53.8"..18..1.2 1.4 2.1 2.0 5.1 1.5 1.6 1.4 1.0 1.7 1.3 1.2 1.8 2.1 1.6 1.2 1.7 2.5 

2015..40.1"..15..2.1 1.1 1.4 2.6 1.4 2.0 1.2 1.6 1.4 1.5 1.4 1.3 1.2 1.6

2016..42.2"..11..1.8 2.3 1.5 1.5 1.7 1.2 1.1 1.1 1.4 1.8 2.2

2017..45.0"..14..2.3 1.2 2.0 1.5 1.2 1.3 3.2 1.6 1.4 1.4 1.3 1.8 1.3 3.3

2018..65.6"..24..1.8 2.2 1.4 1.1 3.3 1.0 1.4 2.2 1.7 2.9 1.0 1.5 1.0 1.4 1.2 2.0 1.3 1.1 1.5 1.8 1.4 1.8 1.2 1.1

2019..53.0"..18..1.2 1.3 1.4 1.1 1.4 1.4 1.0 1.8 1.1 2.3 2.2 1.4 1.0 1.8 1.4 1.7 2.0 1.0

2020..45.4"..13..1.2 1.9 3.3 1.4 1.8 1.2 1.1 1.3 1.4 2.2 1.1 1.5 1.2

2021...............9..1.1 1.6 2.1 1.3 2.6 1.0 4.1 1.4 8.1 7.4

after going six years without a 4" event in Central Park it gets three so far the summer...I'm not sure what the final total is for Central Park but its close to 7.4"...