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The 88 _ 90 _ 94 of Oct 4 to 6 1941 was the latest not quite a heatwave by official definitions, and mid-October 1954 had three in a row over 84 F. The wet September is a typo, it was actually 1882. And what caused it was mainly a slow-moving tropical disturbance remnant moving up the east coast mid-month.

The September 2025 temperature at DCA was a tad below normal at 72.3 degrees, vs 72.4 during 1991-2020. Similarly, precipitation there was 3.72 inches vs 3.93 during 1991-2020. The January-September 2025 temperature averaged 63.0 degrees at DCA, compared with 64.7 last year and the record warm 65.1 during January-August 2012.

I thought I had included the 1895 but typed too fast. The 1914 heatwave tied the 1895 one for the latest on record at Central Park.

It’ll help keep the Zimas cool too!

2001-02 really stands out for this Don

I thought it would be the one in 1895 when NYC had 3 straight days of 95+, was that 20-22 Don?

1892: Central Park in New York City, NY concluded its wettest month ever with 16.85 inches of rain. (Ref. Wilson Wx. History) what caused so much rain Tony?

The latest heatwave on record for Central Park is September 21-23, 1895 and 1914. Newark's is September 23-25, 2017.

This is for the entire month? Wow, around here it's 1.5-2.5, in the Poconos it's the same thing. That JFK high total is VERY suspicious.

3.5 _ 4.0 _ 4.3 _ 5.2 _ 3.5 _ 3.5 _ 2.0 _ 2.0 _ 1.2

The Grinch is insatiable, it'll probably be one of those straight south north runners where Dryslot West is snow and us east is rain through the maritimes We somehow didn't lose all our snow on Christmas of 2020, but did most of it. We got a small storm a few days later which was enough to go and scout out logging damage on the North end of our trail system by snowmobile, though it was boney.

nice to get the full sun this afternoon

This is weird even without any extreme heat it's the warmest week-- because of the elevated mins? I'd expect at least one or more heatwaves have occurred in the history of NYC in the last week of September.

“You’re going to regret not installing before we break camp in the morning, Arthur. You know Gertrude won’t put up with being hot as we cross the Black Hills and little Margaret will be crying in those dew points. My wagon is installed Morch to Torchvember. Alright giddy up.”

Yes I'm still using my a/c through October. This is very different from the 80s when I usually turned the heat on in the first week of October I have to admit this weather feels much better.

Survived the dysentery, but succumbed to 75/65.

Mine is 40/18 in North Carolina. All elevation and location on the windward slopes.

September is ending on an unseasonably warm note. Many parts of the region saw high temperatures in the 80s. Preliminary highs included: Bridgeport: 81° Islip: 82° (tied record set in 1986) New York City-Central Park: 81° New York City-JFK Airport: 81° New York City-LaGuardia Airport: 80° Newark: 83° White Plains: 80° The last time all seven locations saw 80° or above highs on September 30th was in 1986. The start of October will coincide with arrival of the coolest air mass so far this season, but temperatures will likely quickly moderate, rising to above normal levels within a few days. High temperatures will reach only the middle 60s tomorrow and Thursday. New York City will see the low temperature bottom out in the lower 50s on Thursday morning. Outside the City, widespread 40s are likely with a few of the colder locations dipping into the 30s. A rapid warmup will commence on Friday and a warm weekend lies ahead. The guidance and historical experience following a second half September mean temperature of 70° or above suggest that October will be warmer than normal in the New York City area. The two most recent Octobers with a cooler than normal first half like 2025 and a second half with a mean temperature of 70° or above were: 2017 (October mean temperature: 64.1° and October 2019: October mean temperature 59.9°). The ENSO Region 1+2 anomaly was -0.1°C and the Region 3.4 anomaly was -0.5°C for the week centered around September 24. For the past six weeks, the ENSO Region 1+2 anomaly has averaged -0.12°C and the ENSO Region 3.4 anomaly has averaged -0.42°C. La Niña conditions will likely develop during mid- or late-autumn. The SOI was +3.63 today. The preliminary Arctic Oscillation (AO) was -0.436 today.

It's an airport, I don't live at it thankfully. Only 78.3 in Muttontown & 77.4 in Syosset today.

At the time, the 2.54" on 12/25 was the greatest calendar day precip I'd measured in December here. The low of 43 was 14° higher than the average high for the date. It's now in 3rd place. We had 3.25" on 12 23/2022, less than a week after getting a 22" dump of 9:1 snow. That latter storm began as SN/IP and 2/3 of precip came at temps 30-35. The RA fell atop a solid 15" pack and only brought it down to 12". Tops now came on 12/18/2023 with 4.08", most falling at 45-55°. The 2" pack quickly disappeared, rivers were fairly high due to 2.3" RA a week earlier, and the 4.21" 2-day total produced the 2nd highest peak flow (only 1987 had more) on both the Sandy and Carrabassett Rivers. Had the 2023 storm fallen on that 15" pack of 2022, the 1987 record might now be #2.

@uofmiami drives to islip to protest the inaccurate sensor.

This forum in the 1800s…

Nice!!

August was alright. September has been great—though I think this is the first one in a while where I didn’t have a chase opportunity. It’s coming in October though.

Today is the 15th day with a high of 80+ this September. Septembers with 14+ days of 80+, 1952-2014 (63 years): 9 Septembers with 14+ days of 80+, 2015-2025 (11 years): 7 Crazy that something that used to happen about once every 7 years is now happening more years than not.