Coldest recorded temperature in Hawaii: 12 degrees farenheight Coldest recorded temperature in Alaska: -80 degrees F. Coldest recorded temperature on Earth: -129 degrees F. (Antartica) Temperature at which a naked person will begin to feel cold: 77 degrees F. Temperature at which a resting ptarmigan can no longer maintain its body temperature: -30 degrees F. Temperature at which a Canadian Goose typically will not fly by choice: 10 degrees F or less. Temperature at which your tounge will freeze to your gun barrel: 23 degrees F. Body Temperature at which hypothermia will begin to set in: 95 degrees F. Temperature at which exposed human flesh will freeze in one minute: -29 degrees F. Combined temperature and wind speed that can freeze exposed human flesh in 30 seconds: -30 degrees. Temperature at which the Canadian Meteorologist service recommends that you neither fish nor hunt: -67 degrees. That's if you couldn't figure that last one out on your own...lol. When we were 15 my cousins and I were snow goose hunting in a mile long...mile wide open field with winter wheat on it on an extremely cold day. The wind chill was -30 degrees. We were all layered up...and hiding behind a white bed sheet since there was snow on the ground. This produced almost more snow geese than we could carry...as the birds were extremely reluctant to fly. They literally tried to run away from us on foot until they were well within range when they finally did fly. So there is some truth to the birds not wanting to fly when its extremely cold. I don't venture out like that anymore since I've started to become older...and wiser...lol. But it's possible to get hypothermia in 70 degree water if you stay in it long enough. I got hypothermia one day when I succumbed to carbon monoxide fumes while buffing a floor indoors (no heat in 28 degree temps) with a propane buffer...and inadequate ventilation. I was lucky to survive that one. Which brings about three points when applied to the outdoors...dress for the occasion when out in the elements (Use layers of clothing)...stay dry...and be wary of using a gas heater of any kind inside an enclosed area such as a tent.