August 2023

[bluewave]

1 hour ago, Allsnow said:

Coolest met summer since 2009 

Coolest since 2017 and 2014 in NYC and 2018 and 2019 at Newark.  That 2009 summer is a tough act to follow. 2009 was also the last time Newark had back to back top 10 coolest June and July. 

 

Time Series Summary for NY CITY CENTRAL PARK, NY
Click column heading to sort ascending, click again to sort descending.

Year	Mean Avg Temperature	Missing Count
2023	74.8	11
2022	76.7	0
2021	75.9	0
2020	76.9	0
2019	75.6	0
2018	75.8	0
2017	74.3	0
2016	76.7	0
2015	76.3	0
2014	74.4	0
2013	75.7	0
2012	75.5	0
2011	75.9	0
2010	77.8	0
2009	72.0	0

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ
Click column heading to sort ascending, click again to sort descending.

Year	Mean Avg Temperature	Missing Count
2023	76.4	11
2022	79.2	0
2021	78.3	0
2020	77.6	0
2019	76.5	0
2018	76.5	0
2017	74.7	0
2016	77.6	0
2015	76.6	0
2014	74.8	0
2013	76.3	0
2012	76.9	0
2011	78.0	0
2010	78.7	0
2009	73.5	0

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Month of Jun
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Mean Avg Temperature	Missing Count
1	1958	67.5	0
2	1947	67.8	0
3	1982	67.9	0
4	1940	68.5	0
5	1972	68.8	0
6	2009	68.9	0
-	1955	68.9	0
7	1936	69.1	0
8	1935	69.2	0
9	2003	69.3	0
-	1985	69.3	0
-	1979	69.3	0
10	1948	69.4	0
-	1946	69.4	0
-	1932	69.4	0

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Month of Jul
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Mean Avg Temperature	Missing Count
1	1956	73.1	0
2	2000	73.7	0
3	1996	73.8	0
-	1962	73.8	0
-	1933	73.8	0
4	2001	74.1	0
-	1945	74.1	0
5	1969	74.2	0
-	1967	74.2	0
6	2009	74.3	0
7	1940	74.5	0
8	1932	74.7	0
9	1939	74.8	0
10	1976	74.9	0
-	1960	74.9	0
-	1946	74.9	0
-	1936	74.9	0

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ
Click column heading to sort ascending, click again to sort descending.

Rank	Ending Date	Mean Avg Temperature Jun 1 to Jul 31	Missing Count
1	1940-07-31	71.5	0
2	2009-07-31	71.6	0
3	1947-07-31	71.7	0
4	1936-07-31	72.0	0
5	1932-07-31	72.1	0
6	1958-07-31	72.2	0
-	1946-07-31	72.2	0
7	1945-07-31	72.4	0
8	1956-07-31	72.5	0
-	1938-07-31	72.5	0
9	1933-07-31	72.6	0

[psv88]

1 hour ago, Allsnow said:

Coolest met summer since 2009 

2017 was cooler here. About even with 2019

[MANDA]

Gotta feel sorry for the folks out in the central U.S.  Heat indexes 115-120 in spots!  Nasty stuff.

 

[Allsnow]

48 minutes ago, bluewave said:

Coolest since 2017 and 2014 in NYC and 2018 and 2019 at Newark.  That 2009 summer is a tough act to follow. 2009 was also the last time Newark had back to back top 10 coolest June and July. 

 

Time Series Summary for NY CITY CENTRAL PARK, NY
Click column heading to sort ascending, click again to sort descending.

Year	Mean Avg Temperature	Missing Count
2023	74.8	11
2022	76.7	0
2021	75.9	0
2020	76.9	0
2019	75.6	0
2018	75.8	0
2017	74.3	0
2016	76.7	0
2015	76.3	0
2014	74.4	0
2013	75.7	0
2012	75.5	0
2011	75.9	0
2010	77.8	0
2009	72.0	0

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ
Click column heading to sort ascending, click again to sort descending.

Year	Mean Avg Temperature	Missing Count
2023	76.4	11
2022	79.2	0
2021	78.3	0
2020	77.6	0
2019	76.5	0
2018	76.5	0
2017	74.7	0
2016	77.6	0
2015	76.6	0
2014	74.8	0
2013	76.3	0
2012	76.9	0
2011	78.0	0
2010	78.7	0
2009	73.5	0

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Month of Jun
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Mean Avg Temperature	Missing Count
1	1958	67.5	0
2	1947	67.8	0
3	1982	67.9	0
4	1940	68.5	0
5	1972	68.8	0
6	2009	68.9	0
-	1955	68.9	0
7	1936	69.1	0
8	1935	69.2	0
9	2003	69.3	0
-	1985	69.3	0
-	1979	69.3	0
10	1948	69.4	0
-	1946	69.4	0
-	1932	69.4	0

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Month of Jul
Click column heading to sort ascending, click again to sort descending.

Rank	Year	Mean Avg Temperature	Missing Count
1	1956	73.1	0
2	2000	73.7	0
3	1996	73.8	0
-	1962	73.8	0
-	1933	73.8	0
4	2001	74.1	0
-	1945	74.1	0
5	1969	74.2	0
-	1967	74.2	0
6	2009	74.3	0
7	1940	74.5	0
8	1932	74.7	0
9	1939	74.8	0
10	1976	74.9	0
-	1960	74.9	0
-	1946	74.9	0
-	1936	74.9	0

 

Time Series Summary for NEWARK LIBERTY INTL AP, NJ
Click column heading to sort ascending, click again to sort descending.

Rank	Ending Date	Mean Avg Temperature Jun 1 to Jul 31	Missing Count
1	1940-07-31	71.5	0
2	2009-07-31	71.6	0
3	1947-07-31	71.7	0
4	1936-07-31	72.0	0
5	1932-07-31	72.1	0
6	1958-07-31	72.2	0
-	1946-07-31	72.2	0
7	1945-07-31	72.4	0
8	1956-07-31	72.5	0
-	1938-07-31	72.5	0
9	1933-07-31	72.6	0

Sorry for phl it was

[Stormlover74]

47 minutes ago, MANDA said:

Gotta feel sorry for the folks out in the central U.S.  Heat indexes 115-120 in spots!  Nasty stuff.

 

Some places in Iowa have dewpoints in the low 90s!

[MANDA]

7 minutes ago, Stormlover74 said:

Some places in Iowa have dewpoints in the low 90s!

Evapotranspiration a.k.a. "corn sweat" in high gear.

[forkyfork]

let's cut everything down and plant corn

[bluewave]

1 hour ago, Allsnow said:

Sorry for phl it was

Philly is closer to 2014 so far than 2009. Plus 2009 wasn’t as cold in Philly as it was in our area. Newark had its 2nd coldest June and July average while Philly was only 13th coolest since 1931.

 

Time Series Summary for Philadelphia Area, PA (ThreadEx)
Click column heading to sort ascending, click again to sort descending.

Ending Date	Mean Avg Temperature Jun 1 to Aug 20	Missing Count
2023-08-20	75.8	0
2022-08-20	79.0	0
2021-08-20	77.4	0
2020-08-20	78.4	0
2019-08-20	78.0	0
2018-08-20	76.8	0
2017-08-20	76.9	0
2016-08-20	78.8	0
2015-08-20	77.7	0
2014-08-20	75.9	0
2013-08-20	76.7	0
2012-08-20	78.0	0
2011-08-20	78.6	0
2010-08-20	80.1	0
2009-08-20	74.8	0

[Cfa]

91/65 split here, currently 85.

I don’t get the 2009 comparisons, that summer felt cooler, cloudier, and wetter than 2023 from what I can remember.

[SnoSki14]

Unless we see a major early September warm spell then our 90+ window is closing fast. 

[bluewave]

12 minutes ago, SnoSki14 said:

Unless we see a major early September warm spell then our 90+ window is closing fast. 

Yeah, warm spots like Newark will easily fall below the 33 average number of 90° days since 2010. Today was only the 23rd day to reach 90° at Newark. 

Monthly Number of Days Max Temperature >= 90 for NEWARK LIBERTY INTL AP, NJ
Click column heading to sort ascending, click again to sort descending.

Year	Apr	May	Jun	Jul	Aug	Sep	Oct	Season
Mean	0	2	5	15	8	3	0	33
2023	2	1	1	14	5	M	M	23
2022	0	4	6	20	18	1	0	49
2021	0	4	12	11	13	1	0	41
2020	0	0	5	17	9	0	0	31
2019	0	1	4	14	4	3	1	27
2018	0	4	5	9	14	4	0	36
2017	0	3	5	9	2	3	0	22
2016	0	3	3	16	13	5	0	40
2015	0	2	4	11	13	5	0	35
2014	0	0	2	8	2	3	0	15
2013	0	2	4	15	3	1	0	25
2012	0	2	6	16	7	2	0	33
2011	0	1	4	22	4	0	0	31
2010	1	2	13	21	11	6	0	54

[nycwinter]

3 hours ago, Allsnow said:

Coolest met summer since 2009 

you can already feel the  dimishing effects of the lowering sun angle..in another month it will everyday hoodie season happening..

[JerseyWx]

2 hours ago, bluewave said:

Coolest since 2017 and 2014 in NYC and 2018 and 2019 at Newark.  That 2009 summer is a tough act to follow. 2009 was also the last time Newark had back to back top 10 coolest June and July.

Yeah I think people are over-blowing how cool this summer has been.  Is it as bad as some recent years?  No, but you'd think we're in a mini ice age over here.

[SnoSki14]

47 minutes ago, SnoSki14 said:

Unless we see a major early September warm spell then our 90+ window is closing fast. 

Of course as soon as I post that the GFS torches us again. 

However meaningful heat in the medium-long term has been failing to materialize. 

We only got 1 day of heat out of this ridging 

[bluewave]

32 minutes ago, JerseyWx said:

Yeah I think people are over-blowing how cool this summer has been.  Is it as bad as some recent years?  No, but you'd think we're in a mini ice age over here.

It just feels cooler relative to the extreme heat of recent summers. But nothing noteworthy like 2009 was. We’ll take what we can get.

[doncat]

88° high today. 

[donsutherland1]

Cooler air will return for tomorrow. Afterward, a prolonged stretch of cooler than normal readings will continue through at least the weekend.

Yesterday, Hilary brought an all-time daily record 2.20" rainfall to Death Valley. That tops the previous one- two- and three-day records. It also matches that location's average annual rainfall (1991-2020 baseline)

The ENSO Region 1+2 anomaly was +3.3°C and the Region 3.4 anomaly was +1.3°C for the week centered around August 16. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +3.15°C and the ENSO Region 3.4 anomaly has averaged +1.17°C. El Niño conditions have developed and will likely continue to strengthen through at least the summer. The probability of an East-based El Niño event has increased.

The SOI was unavailable today.

The preliminary Arctic Oscillation (AO) was -0.500 today.

On August 19 the MJO was in Phase 1 at an amplitude of 1.553 (RMM). The August 18-adjusted amplitude was 1.295 (RMM).

Based on sensitivity analysis applied to the latest guidance, there is an implied 82% probability that New York City will have a cooler than normal August (1991-2020 normal). August will likely finish with a mean temperature near 74.7° (1.4° below normal).

 

[Roger Smith]

Just for interest, here is the complete list of years (at NYC) that had their annual maximum later than today's date August 21st ... they are arranged by dates of occurrence and within same dates, from warmest to coolest values. Ties within this range of dates are shown in italics. Ties with earlier values are shown underlined. 

Notes include any record highs that were not annual maxima. Absence of such a note implies that the warmest annual max shown is also that day's record high. 

 

Date ___ YEAR(s) ___ Max _______ notes (including record highs not annual maxima)

Aug 21 __ 1869 ___ 95 _______________________ 96F 1955

Aug 22 __ 1916 ___ 95 ___________

Aug 23 __ (no years had max) _______________ 92F 1916

Aug 24 __ 1972 ___ 94 (tied July 19 & 23, 1972 94F)

Aug 25 __ (no years had max) _______________ 95F 1948

Aug 26 __ 1948 __ 103

Aug 27 __ 1960 _ 91 (tied July 12, 1960 91F) __ 101F 1948

Aug 28 __ 1973 ___ 98 __ tied 30th __________ 100F 1948

Aug 29 __ (no years had max) ________________ 99F 1953

Aug 30 __ 1973 ___ 98 __ tied 28th ___________ 98F also in 1953

Aug 31 __ (no years had max) ________________100F 1953

Sep 1 ____ (no years had max) ________________ 97F 1953

Sep 2 ____ 1953 __ 102 ____ 1932 _ 96 ___ 2014 _ 92

Sep 3 ____ 1929 ___ 99 ____ 1921 _ 96 _________

Sep 4 ____ (no years had max) ________________ 97F 1929

Sep 5 ____ (no years had max) ________________ 94F 1985

Sep 6 ____ (no years had max) ________________ 97F 1881

Sep 7 ____ 1881 ___101 

Sep 8 ____ 2015 ___ 97

Sep 9 ____ 1915 ___ 94 ____ 1884 _ 91 (tied June 21, Aug 20, Sep 10 1884 91F)

Sep 10 ___ 1897 ___ 93 (tied July 6, 1897 93F) ___ 1884 _ 91 (tied June 21, Aug 20, Sep 9 1884 91F)

________________________________________________ 97F 1931 and 1983

Sep 11 ___ 1983 ___ 99 __ 1931 ___ 99 __ (1931 tied Aug 7 99F)

Sep 12 ___ (no years had max) ________________ 94F 1961

Sep 13 ___ (no years had max) ________________ 94F 1952

Sep 14 ___ (no years had max) ________________ 93F 1931

Sep 15 ___ 1927 ___ 92 (tied four dates in July 1927 92F) ___ 

Sep 16 ___ (no years had max) ________________ 93F 1915

Sep 17 ___ (no years had max) ________________ 93F 1991

Sep 18 ___ (no years had max) ________________ 91F 1891

Sep 19 ___ (no years had max) ________________ 94F 1983

Sep 20 ___ (no years had max) ________________ 93F 1895, 1983

Sep 21 ___ (no years had max) ________________ 95F 1895

Sep 22 ___ 1914 ___ 95 (tied May 27, 1914 95F) ___ 1970 _ 94 ___ record 95F 1895, 1914

Sep 23 ___ 1895 ___ 97 ____________________ also 96F May 31, June 1, 2 1895

___________________________

Also 93F on Sep 1st to 3rd 1898 but annual max was 100F in July 3. 

Records after Sep 23 generally near 90F, sooner or later a year could set an annual max in October as 94F in 1941 is above annual maxima of several years.  

[SACRUS]

8/21

ACY: 92
EWR: 91
BLM: 91
PHL: 90
New Brnswck: 89
NYC: 88
JFK: 88
LGA: 87
ISP: 87
TEB: 87
TTN: 86

[doncat]

Looking back thru my records, only 1982 had no 90° readings in August.

[Allsnow]

13 hours ago, bluewave said:

Philly is closer to 2014 so far than 2009. Plus 2009 wasn’t as cold in Philly as it was in our area. Newark had its 2nd coldest June and July average while Philly was only 13th coolest since 1931.

 

Time Series Summary for Philadelphia Area, PA (ThreadEx)
Click column heading to sort ascending, click again to sort descending.

Ending Date	Mean Avg Temperature Jun 1 to Aug 20	Missing Count
2023-08-20	75.8	0
2022-08-20	79.0	0
2021-08-20	77.4	0
2020-08-20	78.4	0
2019-08-20	78.0	0
2018-08-20	76.8	0
2017-08-20	76.9	0
2016-08-20	78.8	0
2015-08-20	77.7	0
2014-08-20	75.9	0
2013-08-20	76.7	0
2012-08-20	78.0	0
2011-08-20	78.6	0
2010-08-20	80.1	0
2009-08-20	74.8	0

My point still stands…coolest summer in phl since 2009. 

[Allsnow]

September in august this summer 

 

 

 

[Allsnow]

Meanwhile 

 

 

[CIK62]

The next 8 days are averaging   75degs.(67/82) or Normal.

Reached 90{H.I. of 95} here yesterday at 6pm.

Today:    77-81, wind ne., m. sunny?, 65 tomorrow AM.

71*(54%RH) here at 7am{was still 80* back at midnight}.     70* at 8am.     69* at 9am.      73* at Noon.     79* at 3pm.    Reached 84* at 6pm.

[lee59]

It was so warm late last evening but how refreshing this morning

[SnoSki14]

45 minutes ago, Allsnow said:

Meanwhile 

 

 

Yikes! Hard pass

[nycwinter]

Oh, what a beautiful mornin'
Oh, what a beautiful day
I've got a beautiful feelin'
Everything's goin' my way

Oh, what a beautiful day

[MJO812]

1 hour ago, SnoSki14 said:

Yikes! Hard pass

We got lucky this summer 

[Nibor]

2 hours ago, Allsnow said:

Meanwhile 

 

 

 

me just looking at that image

[winterwx21]

Dewpoint all the way down to 50. Enjoy this extremely low humidity today and tomorrow. More low humidity coming early next week as this comfortable August continues.