Hot nights (hottest, warmest, recorded, temperatures)

[dhdh]

What places or cities do you know with really hot nights, at least for a certain period of the year? And any idea what's the hottest night ever recorded anywhere? I'm curious about whether daily minimums above 40°C (104°F) have already been recorded.
I guess so because I know even temperate cities like Melbourne have recorded 34°C+ minima.
As for cities with commonly hot nights, I can name :
-Hong Kong in summer (27° July average minimum at the airport, 30°C+ nights common with high humidity, crazy);
-Delhi (probably the hottest night I've ever experienced, once I had to wake up at 4am to take a plane and the temp was still 33°C);
-Dubai's average August minimum is 30.2°C

So do you guys have any data, stories or view to share?

[ColdCanadian]

Toronto, June 1995 (forgot the day)

High of 37 or 38 C (?)
36 C/97 F at 6 pm
cooled to 34 C/94 F by 9:45-ish pm (after sunset; totally dark outside)
cooled to 33 C/93 F by 10:30-ish pm
muggy 30 C/86 F in my backyard at sunrise (5:45 am) virtually-stagnant windspeed
back up at 33 C/92 F by 8:00am

At 10 pm, leaving my house to do some skateboarding, our house A/C set at 80 F (27 C) I was instantly met with a thick, steamy-wall of heat. I thought that I wouldn't have to pace myself at night, but started feeling exhausted within 5 minutes and had to take intermittent breaks. I still liked that better than being very-cold within 5 minutes; typical Sep-thru-May.

Even from my many trips to the Carolinas in August, I have never seen hotter nights there than Toronto's hottest nights.

[ben86]

European record hottest night is Paleochora, Greece (I think Crete) with a minimum of 35.8 on 27.6.2007 http://penteli.meteo.gr/meteosearch/...ra/2007-06.txt

I remember backpacking through Sardinia in summer 2006 and trying to sleep on an isolated beach about half a metre above sea level (I won my bet with myself that the Mediterranean doesn't have tides) on a night which apparently never got below about 29C and just couldn't. Having a midnight swim was fun though.

Also, in the French heatwave of 2003 I remember failing to sleep one night with a bedroom temperature of 35C (no A/C)

[nei]

I know Death Valley is supposed to have recorded some of the hottest night temperatures in the world. Average low in July is about 31C (depending on which weather station). The highest recorded night temperature was 103F (about 39.5 C). I've been there once in the summer, it was very hot at night, but it was a long time ago and I can't remember how hot it was. I'd imagine any place by the Persian Gulf could have very hot nights. The hot nights in Death Valley are dry not humid unlike Dubai or Delhi. I think the geography of Death Valley(the surrounding mountains) prevent the valley from cooling down. It's a natural oven...

There were many nights this summer when it was above 25-26C when I went to sleep, but most of those ones dropped to 20 or 21 by early morning. A couple of times I'd wake up from the temperature drop because I was sleeping with a fan blowing outside air onto my skin. Cool early morning on summer hot days were wonderful: quiet, cooler and peaceful and nice light on everything.

[ben86]

Basra on the Persian Gulf might be a contender to beat Death Valley, or maybe our old friend Dallol with its average July low of 32C. Anywhere in Australia maybe?

[nei]

Another site claimed 104F for Death Valley (Jul 24 2003) and 100F night for Muscat, Oman.

I think Basra recorded its hottest day ever (125F) but only had a 93F night this year. I'm thinking Dallol might be the best contender, especially because it's in a depression like Death Valley.

[ColdCanadian]

Originally Posted by ben86

Basra on the Persian Gulf might be a contender to beat Death Valley, or maybe our old friend Dallol with its average July low of 32C. Anywhere in Australia maybe?

Doubtful. Lows of 32 C/90 F are quite unusal there.
Adelaide seems to be the only city in Australia that sees 32+ C lows with any measureable frequency.
I think their warmest avg lows are something like 27-28 C in the hottest parts of the north.
Parts of the nearly-uninhabited north may get some 32+ C lows each year,
but I would suspect the Persian Gulf tops Australia for hottest nights.

Our friend "SAB" might be able to prove me wrong.

[ben86]

Originally Posted by nei

Another site claimed 104F for Death Valley (Jul 24 2003) and 100F night for Muscat, Oman.

I think Basra recorded its hottest day ever (125F) but only had a 93F night this year. I'm thinking Dallol might be the best contender, especially because it's in a depression like Death Valley.

I'm impressed how you always know your facts- I did a quick Google on Basra hottest nights but didn't get much. For a coastal location next to such a warm sea I'm surprised the temps fall so much at night compared to Muscat. I actually know somebody who served in Basra with the Army who's said the heat was a lot tougher to deal with than anything the Iraqis had to throw at them. Considering everybody moaned here the one night last summer it never got below 70 (we don't have A/C in our homes) it puts it into perspective a bit how some people can manage to sleep in 100.

[Infamous92]

Wow nights in the 100's?

I think NYC's highest low temperature was 92°F (33.3°C), I remember reading about it somewhere. We get a couple of nights in the 84-86 range like every year (even in 2009 which was unusually cool).

[ADGreen]

I cannot supply any measurable facts, but I do remember thinking how stinking hot it was at midnight in Las Vegas when we were there in Aug 2008!

Our hotel air con was on, but noticed a wall of very hot heat upon stepping outside....

Sydney, generally speaking gets mild evenings most nights of the year, but it is not a contender by any stretch for the hottest "am" locations.