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The Last Days Of Summer: September 2015 DISCUSSION/OBS


UnionWeatherWx

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1961 had a record low around mid month that was broken a few times since...some warm periods for September...

consecutive days with a mean temperature 70 or higher...23 in 2005 1st-23rd... 15 in 1947 1st to 15th...

consecutive days with a mean temperature 80 or higher .....8 in 1884 4th to 11th,

max temp 70 or higher...30 in 1921...1st-30th...

max temp 80 or higher...23 in 2005...1st-23rd...12 in 1915...6th-17th...

max temp 90 or higher.....5 in 1898...1st-5th...

1898 averaged 84.8 from the 1st to 5th...

1884 averaged 80.3 from the 2nd to 11th...

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80 at the latest update in the park.  Barring a drop in the next couple minutes, we'll have another 80+ day.

It started raining right after that so its possible.

If NWS using 1am during DST then it really did come down to the wire. 

At midnight it was definitely in the 80s

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NYC / EWR had overnight 80's

 

NYC is 62 Straight  80 (+) days and 71 of 73

 

EWR 68 straight 80 (+) days and 72 of 73

 

1. 62 (7/10-9/9/2015)

2. 59 (6/26-8/23/1944)

3. 41 (7/8-8/17/1943 and 7/4-8/13/2011)

4. 40 (6/20-7/29/1966)

 

 

NYC 80 (+) Days 2015
 
April: 1
May: 18
Jun: 16
Jul: 29
Aug:  31 
Sep: 9
 
 

Top 5 for Central Park:

 

1. 108, 1944

2. 106, 1991

3. 104, 1959

4. 100, 1949 and 2005

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Courtesy of Uncle


NYC has 54 days with a minimum 70 or higher...the record is 61 set in 1906...


61 in 1906


60 in 2005


54 in 1908


54 in 2015 (and counting)


52 in 1980


51 in 2013


47 in 2012


46 in 1876


46 in 1959


 


&70(+) min by month (2015)


 


May: 3


Jun: 6


Jul: 19  (6 69's)


Aug:  19 (3 69's) 


Sep: 7


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Newark 30 year 95 degree data with 100 degree days included. 8 days a year is the 30 year average. So this summer was about average.


 


95+/100+


 


2015...8/0


2014...2/0


2013...10/2


2012...17/3


2011...16/4


2010...21/4


2009...1/0


2008...7/0


2007...3/0


2006...7/3


2005...14/3


2004....1/0


2003....2/0


2002...15/2


2001...8/3


2000...1/0


1999...15/5


1998...1/0


1997...7/2


1996...2/0


1995...10/1


1994...12/2


1993...24/9


1992...3/0


1991...12/2


1990....2/0


1989....7/0


1988...20/5


1987...13/0


1986...4/1


1985...2/0


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 Overall great stretch of summers since the heat of 2010 and subsequent scorcher of 11, 12 and 2/3 of 13, the normal but very pleasant 14 and now 15 as a prolonged warm summer.  17 of 19 summer months above normal.  If you extend it out to include May/Sep  23 of 28 months above normal.

 

 

Date....EWR // NYC

 

5/10: +3.5 // +2.9

6/10: +3.8 // +3.2

7/10: +4.9 // +4.9

8/10: +1.9 // +2.2

9/10: +3.4 // +3.1

5/11: +2.9 // +2.1

6/11: +2.0 // +0.9

7/11: +5.3 // +3.8 

8/11: +1.1 // +0.1

9/11: +3.0 // +2.0

5/12:  +3.7 // +2.7

6/12: +0.0 // -0.5

7/12:  +3.5 // +2.3

8/12: +1.8 // +1.5

9/12: +1.3 // +0.8 

5/13:  +0.7 // +0.4

6/13: +0.9 // +1.2

7/13: +3.5 // +3.4

8/13:  -1.1 //  -0.6

9/13:  -1.0 //  -0.1

5/14: +1.4 // +1.6

6/14: +0.4 //  +1.0

7/14: -0.3 // -0.3

8/14: -1.3 //  -0.7

9/14: +1.6 // +1.7

5/15:  +5.5 // +6.1

6/15: -0.4 // -0.3

7/15:  +1.6 // +2.3

8/15: +2.9 // +3.8

9/15:

 

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Newark 30 year 95 degree data with 100 degree days included. 8 days a year is the 30 year average. So this summer was about average.

 

95+/100+

 

2015...8/0

2014...2/0

2013...10/2

2012...17/3

2011...16/4

2010...21/4

2009...1/0

2008...7/0

2007...3/0

2006...7/3

2005...14/3

2004....1/0

2003....2/0

2002...15/2

2001...8/3

2000...1/0

1999...15/5

1998...1/0

1997...7/2

1996...2/0

1995...10/1

1994...12/2

1993...24/9

1992...3/0

1991...12/2

1990....2/0

1989....7/0

1988...20/5

1987...13/0

1986...4/1

1985...2/0

 

 

Not as many scorching days mid 90s/95+ as 11,12,13 but overall persistent warmth and 90 degree days tied or exceeded those summers at NYC and WER. 2010 still in a league of its own with 83,88, 93, 

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Also lets remember if not for that week or so stretch to start June this summer would have really had hige departures. .that weeks huge negatives played a role but were a total anomoly when you look at the May-September period

 

 

Not really. If you look at New Brunswick's daily departures, the consistent solid positive departures didn't begin until the last week of July. There were quite a few days with negative departures throughout June and the first 3 weeks of July.

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It looks like today will be first time since July 9 that temperatures in Central Park haven't risen above 80 degrees. That's quite the stretch.

The only question is whether the temperature remained at 80° by 1 am. We'll know in the next hour or so. Even if the stretch has ended, 62 consecutive days is a record. The annual record of 108 is also very much in reach, as NYC had 104 such days through yesterday.

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The only question is whether the temperature remained at 80° by 1 am. We'll know in the next hour or so. Even if the stretch has ended, 62 consecutive days is a record. The annual record of 108 is also very much in reach, as NYC had 104 such days through yesterday.

How come we don't know if it was 80 at 1am yet?
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The only question is whether the temperature remained at 80° by 1 am. We'll know in the next hour or so. Even if the stretch has ended, 62 consecutive days is a record. The annual record of 108 is also very much in reach, as NYC had 104 such days through yesterday.

it was 80 at 12:51am per NWS records (hourly park reading)  so it's close.

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How come we don't know if it was 80 at 1am yet?

ASOS reporting times (at 51 minutes past the hour, not on the hour) and 6-hourly intervals. 1 a.m. would fall into 8:51 pm - 1:51 am timeframe and the maximum reading for that period almost always occurs earlier.

 

FWIW, Wunderground reports that the high was 81°. Often its figure is correct, but it has occasionally wound up different by a degree or two from the daily climate summary released by NWS later in the day. In short, there's a good chance the streak continued for another day, but until the official data summary is posted, there's a small degree of uncertainty.

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ASOS reporting times (at 51 minutes past the hour, not on the hour) and 6-hourly intervals. 1 a.m. would fall into 8:51 pm - 1:51 am timeframe and the maximum reading for that period almost always occurs earlier.

 

FWIW, Wunderground reports that the high was 81°. Often its figure is correct, but it has occasionally wound up different by a degree or two from the daily climate summary released by NWS later in the day. In short, there's a good chance the streak continued for another day, but until the official data summary is posted, there's a small degree of uncertainty.

 

 

EWR: 81

NYC: 80

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