September 2024

[Dark Star]

48 minutes ago, Brian5671 said:

Where are you going to get cold air this time of year?   Arctic sea ice is at its lowest extent in Sept.   

Not cold air, but cooler air should have been expected with this setup.  Obviously it is not winter.  

[SACRUS]

 

Records:

Highs:

EWR: 89 (1986)
NYC: 89 (1986)
LGA: 88 (1988)
JFK: 84 (1986)


Lows:

EWR: 38 (1942)
NYC: 39 (1912)
LGA: 43 (1947)
JFK: 43 (1991)

Historical:

1896 - A hurricane formed on September 22 and lasted until September 30. It formed directly over the Lesser Antilles and hit Cuba, Florida, Georgia, South and North Carolina, Virginia, Washington D.C., and Pennsylvania. Its maximum sustained winds were at 130 mph. The heaviest rainfall deposited in association with the storm was 19.96 inches at Glennville, Georgia. This hurricane was responsible for an estimated 130 deaths and $1.5 million in damage (1896 dollars).

1959 - Three tornadoes spawned by the remnants of Hurricane Gracie killed 12 persons at Ivy VA. (The Weather Channel)

1970 - A nineteen month drought in southern California came to a climax. The drought, which made brush and buildings tinder dry, set up the worst fire conditions in California history as hot Santa Anna winds sent the temperature soaring to 105 degrees at Los Angeles, and to 97 degrees at San Diego. During that last week of September whole communities of interior San Diego County were consumed by fire. Half a million acres were burned, and the fires caused fifty million dollars damage. (David Ludlum)

1977 - The temperature at Wichita Falls, TX, soared to 108 degrees to establish a record for September. (The Weather Channel)

1986 - Thunderstorms, which had inundated northern sections of Oklahoma with heavy rain, temporarily shifted southward producing 4 to 8 inches rains from Shawnee to Stilwell. Baseball size hail and 80 mph winds ripped through parts of southeast Oklahoma City, and thunderstorm winds caused more than half a million dollars damage at Shawnee. (Storm Data)

1987 - Afternoon thunderstorms in Michigan produced hail an inch in diameter at Pinckney, and wind gusts to 68 mph at Wyandotte. A thunderstorm in northern Indiana produced wet snow at South Bend. Seven cities in the northwestern U.S. reported record high temperatures for the date, including readings of 98 degrees at Medford OR and 101 degrees at downtown Sacramento CA. (The National Weather Summary) (Storm Data)

1988 - Unseasonably warm weather prevailed over Florida, and in the western U.S. The afternoon high of 94 degrees at Fort Myers FL was their tenth record high for the month. Highs of 98 degrees at Medford OR and 99 degrees at Fresno CA were records for the date, and the temperature at Borrego Springs CA soared to 108 degrees. (The National Weather Summary)

1989 - Thirteen cities reported record high temperatures for the date, as readings soared into the upper 80s and 90s from the Northern and Central High Plains Region to Minnesota. Bismarck ND reported a record high of 95 degrees, and the temperature reached 97 degrees at Broadus MT. Afternoon thunderstorms developing along a cold front produced wind gusts to 60 mph at Wendover UT. (The National Weather Summary) (Storm Data)

1992: The past month was the coldest September ever recorded in interior Alaska. Fairbanks averaged a frigid 31.7° which was 13.2° below normal and the first below freezing September ever. Beginning on the 9th and on every day for the rest of the month, a new record low was set for either low minimums or low maximums, or both. On this date, the city plunged to 3° to set a new all-time record low for September. Snowfall for the month totaled 24.4 inches which was more than three times the previous record for September.

 

 

[Allsnow]

3 hours ago, forkyfork said:

a month of blocking and the best we could do was match our highest 30 year sept average ever

Can we just get a good costal storm? 

[steve392]

Gorgeous day out.  72 degrees. Nice to see the sun out again. 

[kat5hurricane]

So much for the gloomy cloudy day. Gorgeous cloudless day here in Midtown.

[Dark Star]

4 minutes ago, kat5hurricane said:

So much for the gloomy cloudy day. Gorgeous cloudless day here in Midtown.

Ridge's nose must be exactly over our area?

[Cfa]

Clear skies for the first time in ages.

[donsutherland1]

September finished with a mean temperature of 68.8° in New York City. That was 0.4° below normal.

Tomorrow and Wednesday will be variably cloudy with temperatures reaching the upper 60s and lower 70s. It will likely turn somewhat milder late in the week. Cooler air could arrive during the weekend.

In the Southwest and parts of California, near record and record heat continued. As of 2 pm MST, Phoenix had a high temperature of 106°. The extreme heat will persist into the weekend.

October could wind up warmer than normal across much of the U.S. The western U.S. could be particularly warm relative to normal. Widespread October warmth occurred during the last case where the AO fell to -2.000 or below while the PNA rose to +1.000 or above with a cool ENSO Region 3.4 anomaly in late September (2010), as was the case this year.

The NAO fell to a preliminary -2.751 on September 24th (all-time September record: -2.371, September 12, 1971). That was the 9th lowest value on record. La Niña winters following September cases where the NAO fell to -1.900 or below featured a predominantly positive NAO. The most recent such winters were 2016-2017 and 2022-2023. The mean temperatures for those winters in New York City were 39.3° and 41.0° respectively. The 1991-2020 normal value is 36.2°. A warmer outcome is favored by the September run of the C3S multi-model forecast for Winter 2024-2025.

The ENSO Region 1+2 anomaly was +0.2°C and the Region 3.4 anomaly was -0.5°C for the week centered around September 18. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.20°C and the ENSO Region 3.4 anomaly has averaged -0.18°C. Neutral ENSO conditions will likely evolve into a La Niña event during the fall.

The SOI was +6.84 today.

The preliminary Arctic Oscillation (AO) was +0.156 today.

[psv88]

72 today

[donsutherland1]

New York City's daily summary for September.

[EWR757]

Less than 1" of rain for much of the area in September, yet the average cloud cover was 60% with the second half of the month being relatively cloudy.

[bluewave]

Driest September on record for ISP and FRG.

 

Time Series Summary for ISLIP-LI MACARTHUR AP, NY - Month of Sep
Click column heading to sort ascending, click again to sort descending.

1	2024	0.24	0
2	2019	0.61	0
3	1985	0.81	0
4	1986	0.82	0
5	1965	1.01	0
6	1982	1.12	0
7	1980	1.28	0
8	2007	1.31	0
-	2005	1.31	0
9	1997	1.42	0
10	1976	1.49	0

 

Time Series Summary for FARMINGDALE REPUBLIC AP, NY - Month of Sep
Click column heading to sort ascending, click again to sort descending.

1	2024	0.36	0
2	2019	0.50	3
3	2013	0.74	0
4	2007	1.34	0
5	2005	1.37	2
6	2022	1.76	0
7	2016	2.14	0
8	2017	2.19	0
9	2014	2.26	0
10	2001	2.32	0

[TJW014]

Finished the month with 0.11" of rain

[MANDA]

1,43" rainfall here for September.  Y.T.D. total at 50.66".

[lee59]

September here averaged 67 degrees, the high 83, low 47 and peak wind gust 22 and total rain .64. That is about as boring as it gets.