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June 2016 Discussions/Observations


bluewave

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there have been some dry periods since 1971 but they were short lived...1964 and 1966 were fading el nino years that were on the dry side...1956 to 1965 were the driest 10 year period...2002 to 2011 is the wettest 10 year period...the 2010's were averaging over 50" a year until 2016...NYC would need 35" the rest of the year to break 50"...

NYC annual precipitation records...

NYC decade precipitation averages since 1870.
10 yr.............Ave. per year. lowest and highest year
1870's..............43.73"........39.25".......51.26"
1880's..............43.54"........35.37".......57.16"
1890's..............41.84"........35.37".......48.26"
1900's..............44.84"........37.44".......58.32"
1910's..............44.24"........33.72".......58.00"
1920's..............44.92"........37.76".......56.06"
1930's..............44.60"........33.85".......53.53"
1940's..............42.16"........36.24".......48.51"
1950's..............39.59"........35.58".......45.20"
1960's..............39.74"........26.09".......48.54"
1970's..............52.31"........35.29".......67.03"
1980's..............49.96"........38.11".......80.56"
1990's..............47.29"........40.42".......60.92"
2000's..............53.18"........35.92".......61.70"

2010's..............50.29"........38.51".......72.81" 2010-15

 

2016................17.36" so far...

 

1956-1965........36.87"........26.09".......46.39"

2002-2011........56.27"........45.21".......72.81"

1870-
2009................45.14"
1980-
2009................50.14"
1870-
1969................42.92"
1970-
2009................50.64"

...........................................................................................................................................
1826-1864 from Jamiaca N.Y...1865-1868- Central Park...
years.................ave..........lowest........highest
1826-1835.......37.95"........28.78"........55.67"
1836-1845.......36.67"........32.13"........44.57"
1846-1855.......39.50"........30.08"........46.40"
1856-1865.......41.30"........31.08"........59.68"
1866-1869.......48.57"........38.26"........57.40" 4yr ave...

driest years...

26.09" in 1965

32.99" in 1964

33.72" in 1910

33.85" in 1935

34.28" in 1963

35.29" in 1970

35.37" in 1885

35.37" in 1895

35.58" in 1954

35.60" in 1892

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we could be at the beginning of a long dry period...Since 1971 NYC had only four years with less than 40" of precipitation...2016 could be number five...The previous 45 year period from 1926 to 1970 had 21 years with less than 40"...If 2016 ends up with less than 40" it would be twice in five years that happened...The 1960's had six straight from 1961 to 1966 with less than 40" of precipitation annually...

Driest year I've recorded here since 1981 was 37.68" in 2001...so far this year have 17.94".
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