LibertyBell

August 26-28 had an extreme 3 day 100+ heatwave though

post August 20th 100 degree heat is very rare which is why the super heatwave in August 1948 and August - September 1953 are so notable. As is the August 20, 1983 100 degrees at JFK and the 99 on September 11, 1983.

Thanks Don, I got some clarity on this page (it coincides with the 2 straight 100+ days that happened at JFK during the same period. https://www.weather.gov/okx/100degreedays The only two periods of three consecutive 100+ days at NYC were in 1948 and 1993. Both times JFK had two consecutive 100+ days. NYC has had multiple separate heatwaves that peaked at 100+ on a few occasions. 1944 (two heatwaves in August), 1949 (once in July once in August), 1953 (July and August-September), 1954 (two heatwaves in July), 1955 (one in July and one in August), 1966 (a whopping three separate heatwaves that peaked at 100+, one in June and two in July). And that was the last previous time it happened, NYC has not had multiple heatwaves peak at 100+ since the 3 heatwaves that did it in 1966. More recently, JFK had two heatwaves peak at 100+ in 1983 (one in July and one in August and another one that peaked at 99 in September.) That was the only time they had that.

we're so used to cloudy / rainy weekends, today feels like a Saturday

now 74 here, it's dropping slowly but the best thing is that wind is cooling down my house.

1955 and 1999 had drought busting tropical events ..... 1999 really stands out to me as the entire summer was scorching hot (the entire month of July) and droughty and then Floyd came calling in mid September and dropped over 10 inches of rain in NJ and eastern PA. The longevity of the 1999 and 1993 super heatwaves are the only ones that challenge 1953.

The intensity of this heat does remind me of 2011 (the only other summer with multiple 102+ days at JFK), except a month earlier than that extreme heatwave. Do you think if this had happened in late July it would have been even hotter and do you see a heavy rainfall month like what happened in 2011 after that extreme heatwave to repeat itself? If it's going to occur a month earlier, just like the big heat did, it would happen in July instead of in August.

wow you dropped way faster, it was still 81 when I woke up this morning, now down to 76 here. I'm keeping the a/c on until it drops into the 60s.

1948 had a wildly hot summer, if I remember correctly from what I read NYC had 3 100+ days (consecutively in July) and JFK had 2 100+ days (consecutively in August). JFK may have hit 100+ in July too, but their period of record only began at the end of July so they didn't record that earlier heatwave in which NYC hit 100+ 3 days in a row?

So 1983 was the only time that JFK had multiple 2 separate heatwaves that peaked at 100+ I think NYC had two such heatwaves in both 1948 and 1966. Also in 1953 which had 4 total 100+ days at NYC evenly split between two heatwaves.

1966 was the only time it happened three days in a row (2010 was close with 3 days out of 4).

The closest thing to 1953 that I can remember was 1983 when JFK hit 100 in both July and August and then 99 in September. But in terms of length, 1993 and 1999 are the only summers that came close to matching 1953's super heatwave in length.

The good thing about 2010 was that the humidity was very low. Had 100+ 3 days out of 4 starting on July 4th and didn't feel it at all. 1993 takes the cake for most extreme heatwave and I see it has multiple top spots in your table. 2011 had the highest peak but was shortlived. 1966 had multiple 100+ heatwaves in NYC (June and July).

1983 - Record heat prevailed from Texas to Michigan. Alpena MI hit 98 degrees. (Sandra and TI Richard Sanders - 1987) 1983 had such an incredible summer Today was also the peak of 1952 heat-- but the real summer heat came the following year in 1953. 1952: Record Maximum temperature for Richmond International Airport for the date and for June is 104 °F. (Ref. Richmond Weather Records - KRIC)1952: Boston, MA recorded its highest temperature of 100 °F for June. (Ref. NOAA Boston Weather Events) Highs: EWR: 102 (1952) NYC: 100 (1952) LGA: 101 (1952) JFK: 99 (1949)

Yes it didn't get comfortable until this morning, but it finally feels much better this morning.

I don't mind, I just wanted to get 1 or 2 100+ days and it happened. I don't think it will get this extreme again later either. The only other year I can recall multiple 100+ heatwaves in NYC was in 1966, when NYC hit 101 in June and 103 in July. But this heatwave exceeded the June 1966 heatwave even though NYC did not hit 100+ this time because the 100+ coverage was far greater. JFK has never had multiple heatwaves of 101+ (that I can remember anyway). And we hit 102 twice in this one!! The closest summer I can recall which had multiple triple digit outbreaks at JFK was 1983, in which it hit 100 in July and 100 in August (NYC did not hit 100 either time) and then 99 in September. Was that the only year you can recall that JFK had multiple 100+ heatwaves too? I think there might have been another one much earlier in its history (1948 maybe?)

Is there any way to rank heatwaves the way we rank KU events? In terms of intensity, longevity, coverage of 90, 95 and 100 degree temperatures (both by area and by population affected), etc.?

Lightning bugs / fireflies are also out in force tonight !!

The bugs are out tonight Don =\ The rain and these warm minimums must have a lot to do with it. Are the temperatures going to stay above 80 most of the night? With a cold front coming through and rain falling you'd think they'd fall faster.

This ties 1972 for the largest gap in temperatures between JFK and NYC when JFK reaches 100 and NYC does not.

a beautiful park but not a proper location for official weather equipment (especially when all other official locations are airports).

that 99 really bugs me, then again we weren't even close to triple digits on Monday, we were so far off I didn't even record my high temperature that day-- GO BIG OR GO HOME!!

JFK temperatures if anything underdone for yesterday. this area has been the hot spot the last 2 days. JFK if anything underdone on temperatures yesterday, there were widespread 105-106 temperatures across southern Queens and southern Nassau yesterday. 102 today is closer to reality, it bounced back and forth between 102 and 103 here today

screenshots also lower image quality (depending on what kind of image you're trying to post)

this area has been the hot spot the last 2 days. JFK if anything underdone on temperatures yesterday, there were widespread 105-106 temperatures across southern Queens and southern Nassau yesterday. 102 today is closer to reality, it bounced back and forth between 102 and 103 here today