LibertyBell

no sea breeze at all today and no clouds either for that matter what happened to that front thats supposed to make it rain from 5-7 pm lol

But it's inland and much hotter than anyone in the city and here of course. a SSW wind is a humid flow but not that hot.

This is like a lower scale version of that extreme heatwave lol

Looks like the rain comes in around 5 PM with a 20 degree temperature drop at that time lol

wow huge change in 95+ days at both LGA and EWR and a significant change in 80+ lows at LGA!!!

Now up to 97 here, the third hottest temperature of the year (after the 100+ readings in June) and the hottest in July so far!!! Not only are there no clouds today there's no sea breeze either!!!

Yes, I saw the NWS put out a video about it. I wonder if there's a way to find out what the WBGT was in some of our bigger heatwaves (including this one and the one back in June). It also reminds me of the newer EF scale for tornadoes.

Does WBGT give a *this is what this temperature feels like to an average person* kind of reading? From what I saw, it was an index that goes up to 90? It's a little different.

Yes it factors in sun angle, wind speed and amount of cloudiness too. It can be directly measured with instruments.

I just looked through your graphs and it looks like 1949 was really hot too (mins even higher than 1983 and the maxes were right behind 1983), you shared the graph for 1983, what was going on in 1949 that made it so hot?

Yes this strong signal from so far away makes it more concerning.

Now I noticed a few more things-- 1949 (JFK's second year of history) was the only July that averaged 85+ degrees for the max until July 1983, talk about a predictor for summers to come!! It's still in the top 10 (9th place) and 1983 is still in 3rd place!! for *feels like* 1983 is in 4th place behind the three I had already mentioned and 1949 is just behind it in 7th place!! for mins 1949 is even hotter than 1983?? Neither of them are in the top 5 but both are in the top 10 of all Julys, number 9 and number 10 actually!!

some very interesting things in these three graphs Chris!! in the top graph, 2010 and 2011 are tied at number 1 with the same exact temperature!! in the second graph, this July is number one but July 2010 is still very high at number 3, in between them is July 2019 (which outside of those two very hot days I don't remember any other heat). in the bottom graph, for mins this July is number 1, but July 2010 is no slouch, it's at number 2, even though it was a much drier summer!!

But the average high is up there too isn't it-- I think you posted a table showing it's the second hottest (going by high temperatures) right behind 2010? And that the July mean temperature at JFK is very close to 80.0?

yes my first year viewing the perseid meteor shower (I forget which year, either 1986 or 1987) it got down close to 50 at night with clear skies and felt like early fall, zero haze too.

thanks Tony, out of those I think 1993, 1999, 1983, 2010 and 1991 all had at or above 30 90+ degree days, were there any others?

Yes it's really hard to do a top 5 you have to weigh them by some system (so you end up having to do math anyway haha). Basically I'm looking for years that have at least 30 90+ degree days (there's not that many of them), at least 5 95+ degree days and at least 1 100+ degree day. For JFK only 2010 makes that list. For NYC it's more than that but I'm not sure it's 5. I know for sure 2010, 1993, 1991 make this list for NYC (and maybe 1999 too?) but I don't know which others do. 1983 did not get to 100 in NYC (but 99 in September and 100 twice at JFK) I'd still put 1983 near the top for NYC because it held the 90 degree day record until 1991 and 1993. 1953 had four 100+ degree days at NYC but I don't think it had 30 90+ degree days (although it had two of our longest heatwaves ever. 1966 also had four 100+ degree days at NYC (and three in a row at JFK) but I'm not sure it had the 30 90+ degree days I'm looking for. 1955 holds the record for NYC with 16 95+ days but I'm not sure it hit 100 in 1955 at NYC. It's possible 1949 also belongs on this list with 5 99+ degree days at NYC (2 of which were 100+) and 8 100+ degree days at EWR but I don't know the number of 90+ degree days in that year.

there's too many summers to pick from for me to do a top 5, so I'll just list my top 5 ideal summers. 1. 2010 2. 1993 3. 1999 4. 1983 5. 1966

For NYC itself I'd say the top 5 summers for heat (ignoring sensor issues) were: 1. 2010 2. 1993 3. 1983 4. 1966 5. 1953 I really wanted to include 1991 and 1955 and 1949 and 1999, these should go in the next 5.

I mean, you have to use math formulas. Yes you can measure dew point directly but to actually measure the total heat content you have to combine that with temperature using formulas. For example: a temperature of 102 degrees with a dew point of 66 contains more heat than a temperature of 99 degrees with the same 66 dew point. BUT what about a temperature of 99 degrees with a dew point of 68? OR a temperature of 102 with a 64 dew point? Do you see what I mean-- there isn't any direct measure of heat, you must solve these using math formulas.

Yes, it's true. But temperature is what we can measure directly. You need to work with some math formulas to combine moistness with temperature to measure heat. the official NWS definition of *hot summer* ranks them by number of 90 degree highs and does not factor in moisture.

Yes it's average vs total, I care about what I can measure directly (which is temperature). Hot summers are defined by temperature (NWS criteria is number of 90 degree days.)

but we dont factor in dewpoints when we define heat, it's by temperature alone. We can see if it's top 5 by the end of the season, it's too hard to make that judgment right now. For example 2011 was top 5 by the end of July too, but then we had deluge after deluge in August, so it ended up not in the top 5 (although it still has one of the top 5 hot stretches-- as does this one-- in June of all months.) Here are my top 5 (including ones I didn't experience, just going by raw numbers) 1. 2010 2. 1993 3. 1983 4. 1999 5. 1966 The things I care about when categorizing heat are 1) number of 90 degree days 2) length of heatwaves 3) peak of heat temperatures (100 degree heatwaves get extra points.) For summers I've personally experienced I'd replace 1966 with 2002. I could have added either 1953 or 1955 or both but neither had 100 degree temperatures at JFK so I will not (although 1953 had 4 100+ days at NYC and the longest heatwave of all time and 1955 had the most 95+ days at NYC.)

1983 was hotter though (including here)-- JFK hit 100 in July and August and NYC hit 99 in September.

rain should be coming in between 4-6 today too