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Old 02-23-2019, 07:17 PM
 
Location: NYC
3,829 posts, read 1,546,667 times
Reputation: 1666

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Quote:
Originally Posted by QIDb602 View Post
Wearing a t-shirt and shorts at -12C would result in frostbite and hypothermia pretty quickly. Also, it just seems crazy insane.
Well that’s totally false. At 10f with no wind a person can stay outside for a while wearing minimal clothing with little to no adverse effects. Keep your hands in your pockets and wear good shoes. Some people could last several hours like that. Is it comfortable? No, but for someone who has acclimated well it’s definitely not deadly either.

Of course, it’s easy to say something is deadly when you’ve never experienced or experimented with it. Go visit a cold climate and you’ll find people wearing shorts at 10f.

Last edited by Shalop; 02-23-2019 at 07:26 PM..

 
Old 02-23-2019, 07:35 PM
 
Location: Stara Pazova, Syrmia region (northern Serbia) - 45 N
3,146 posts, read 899,231 times
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In Febuary 9, 2012, (which I mentioned up) here minimum was -26c and maximum was -13c.

My father say he was in one funeral here where I live in early 2000s. It was very cold, and tears of people on funeral were frozen on face. Low that day in my town was -25c. For high I don't now, funerals are in 1:00-2:00 PM when temperatures are the highest in day. I don't have idea which temperature is enough for icing of tears.
 
Old 02-23-2019, 08:38 PM
 
4,731 posts, read 3,023,498 times
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Quote:
Originally Posted by Neptunepenguins View Post
Wait a minute the guy that said -4F isn't cold, just told me he was once in 113F/45C heat with 100 percent humidity once. Making that a dewpoint of 113F. Yeah he must be exaggerating things. He said the heat index was only 137F though, which is wrong at that temperature and humidity. I don't think coastal Mississippi gets that humid or well anywhere in the world! He also claimed the coldest he experienced was -60F with a wind chill of colder than -100F. That I can't quite verify as a lie, but he is exaggerating that heat though.
Usually, but not always, the humidity is highest at sunrise, when the temperature is at its lowest and as the sun heats the air throughout the day the humidity will drop as the air "dries out" and be its lowest around 2-3 PM in the afternoon, when the temperature is near its highest.

Humidity and temperature are usually, but not always, inversely related, overnight/early morning = high humidity and low temperatures, noon/afternoon = low humidity and high temperatures, it's just physics!

So, if the humidity was 100%, I highly doubt the sunrise temperature (basically the low) was 113F/45C, that would be some record high low there!

The coldest I have ever gotten to experience was -40C/-40F in September 2011, when I was living and working at McMurdo Station in Antarctica, with the wind chill it was -63C/-81F, that was cold.

My hottest was in June or July in Arizona one year when it was 49C/120F. So if my lifetime, I've gotten to feel a 201F (-81F to 120F) maximum difference in temperatures!

Last edited by cjseliga; 02-23-2019 at 09:28 PM..
 
Old 02-24-2019, 02:24 AM
 
Location: Bidford-on-Avon, England
2,413 posts, read 306,843 times
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Quote:
Originally Posted by Shalop View Post
It's somewhat cold but not very cold. From the few weeks of experience I got in those temps:

-Unless there are high winds I wouldn't need my thickest parka, just an ordinary (but good) winter jacket suffices
-During the day I could wear actual gloves without my hands freezing (as opposed to 17 inch long mitts that extend all the way to my elbows, which I'd use for -30 C)
-It's a temperature where (as opposed to, say -40 C) many people actually do a lot of outdoor activities like skiing & XC skiing, hiking, biking, snowmobiling, etc
-I don't need a mask, which I start using around -25 to -30 C

I agree that -25 C is cold as a high. Coldest high I experienced in Yellowknife was -31 C and lots of people were still out walking their dogs and riding snowmobiles.
It is bitterly cold!
 
Old 02-24-2019, 02:25 AM
 
Location: Bidford-on-Avon, England
2,413 posts, read 306,843 times
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Quote:
Originally Posted by JetsNHL View Post
-20C for a high isn't really considered super cold here if its mid winter. We've had it 15 times I think and they 30 times in Thompson so far this winter. Coldest high was -29.8C here and -32.7C in Thompson.

OTOH, if we get it in December and not really used to the cold yet, then it sure feels bad.

Like Shalop states, people will always be out no matter the temperature. On the -40.0C (actual temp) morning we had a few weeks ago, I saw a person out jogging at 7AM.
It is bitterly cold!
 
Old 02-24-2019, 02:33 AM
 
Location: Bidford-on-Avon, England
2,413 posts, read 306,843 times
Reputation: 263
Quote:
Originally Posted by Neptunepenguins View Post
Wait a minute the guy that said -4F isn't cold, just told me he was once in 113F/45C heat with 100 percent humidity once. Making that a dewpoint of 113F. Yeah he must be exaggerating things. He said the heat index was only 137F though, which is wrong at that temperature and humidity. I don't think coastal Mississippi gets that humid or well anywhere in the world! He also claimed the coldest he experienced was -60F with a wind chill of colder than -100F. That I can't quite verify as a lie, but he is exaggerating that heat though.
45C with 100% humidity is impossible as it yields a humidex of 92, and the highest humidex in the world was 68 at Dhahran, Saudi Arabia on July 8, 2003. The temperature was 42.2C with a humidity of 68%.
 
Old 02-24-2019, 02:47 AM
B87
 
Location: Norwich, UK
10,996 posts, read 7,232,122 times
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Extreme, record-breaking cold that I have never experienced in my life (coldest was -12c in the French Alps).
 
Old 02-24-2019, 03:05 AM
 
Location: Paris
8,107 posts, read 6,467,429 times
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As others mentioned, -20C from radiational cooling on a clear, calm night is a different beast altogether from -20C from a polar advection with high winds. At those temps and lower, the thermometer only tells half the story.
 
Old 02-24-2019, 03:23 AM
 
12,942 posts, read 8,812,593 times
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Coldest i ever saw was 16f in NC back in Nov of 1986 when we were doing a stucco job. Next coldest was 19f in Tampa on Xmas morning in 1983.
 
Old 02-24-2019, 04:16 AM
 
Location: interior Alaska
4,227 posts, read 3,151,753 times
Reputation: 12769
That's a mild winter temperature for my area. Obviously it's cold, but I don't even bother getting bundled up for it unless I'm going to be outside for extended periods. Coat and knit gloves is comfortable enough for normal running around.

Of course it can get dangerous if you're stuck out in it at length, which is why I keep winter emergency gear in my truck.
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