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I think most of Manhattan and other parts of the city would qualify for the 5-10 % region, but it's probably too small of an area to show up on the map.
After living in Austin though, I'll say once again that our summers can barely even begin to compare (both in terms of the sheer length and intensity). Even a disgusting humid one like this year.
It's no contest. Sure, northern cities such as NYC, Chicago, Minneapolis, Boston and Philly can get quite hot and humid, but it comes in spurts. Once you go south from say DC or St Louis on down, that is when you really begin to feel constant heat and humidity during the summer. Places such as Houston, San Antonio, Jackson, Baton Rouge are in a whole other level of summer sultriness.
Oh "OR".. but that's kinda dumb though, no? 95° heat with dews in the 40s wont be "oppressive". Just hot.
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Originally Posted by chicagogeorge
It's no contest. Sure, northern cities such as NYC, Chicago, Minneapolis, Boston and Philly can get quite hot and humid, but it comes in spurts. Once you go south from say DC or St Louis on down, that is when you really begin to feel constant heat and humidity during the summer. Places such as Houston, San Antonio, Jackson, Baton Rouge are in a whole other level of summer sultriness.
Sometimes those spurts are long stretches and sometimes there are multiple long stretches for months but yeah I agree compared to the south obviously it comes in waves.
Still though... I'd like to see 70° dews, not 75 because 70 is oppressive with temps above 85°.
Also.. I assume this was total hours, not just daily max dews of 75+.
I live on the border between the worst and the second worse. It's not news to me. The humidity here is awful in the summer. I'm counting down the weeks till October or November. It will still be very warm but the humidity lessens some.
Oh "OR".. but that's kinda dumb though, no? 95° heat with dews in the 40s wont be "oppressive". Just hot.
95°F with a dewpoint of 45°F will equal a dewpoint of 91°F so it won't count as oppressive. You need a dewpoint of at least 60°F at that temperature to make it "feel" 95°F. 98°F with a dewpoint of 48°F is a heat index of 95°F and counts as oppressive, but 98°F feels very hot, deserves to count
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Still though... I'd like to see 70° dews, not 75 because 70 is oppressive with temps above 85°.
he re-did the map for those who dislike heat more by changing the threshold to a 90°F heat index; high 80s and humid would count as oppressive under this. 85°F with a dewpoint of 70°F just makes it a heat index of 90°F. But oppressive is subjective, there's no right answer. Sounds like you'd prefer to weight humidity higher, heat a bit less.
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Also.. I assume this was total hours, not just daily max dews of 75+.
It's hours but only looks at noon to 6 pm; if he did out of the whole day the % would be even lower. People are used to daily maxes, the % oppressive would be higher going by max.
Given the rather stringent standards used I'd say most places in the 5-10% range could fairly be considered to have hot, humid summers. If someone asked me the % of the time I find D.C. summer weather on the rather 'sticky' side I'd easily say 75%+.
Not sure i agree with NYC metro being only 1-5% but then again the criteria used is why.. 95° temp or heat index and 75 dews? They should of lowered that a bit.
I'd say that fits into a good level of "intolerable oppressiveness" for me where I'll stay inside if at all possible. At lesser levels it can feel oppressive if you're not used to it, but I can acclimate to lesser levels of heat and humidity fairly easily.
NYC and Northeast are above 95F, especially with humidex.. from June thru August. and often in May and early September..
That map seems off
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