The temperature in Maryland today having climbed to 50 degrees, I am reminded of the time I was working in Rochester Minnesota in January, 1994, I think. There had been what they call up there a cold snap - temperatures of minus 25 degrees (Fahrenheit) with wind chills in the minus 75-80 range (those winds across the plains are fierce). I was normally driving back and forth from Minneapolis, but my car in the hotel parking lot was not equipped for that weather and I was stuck. I remember seeing the whole yards of taxis kept running all night because to stop them meant they might not start again.
After about ten days, the weather broke and climbed all the way to zero. It felt like spring, and many were walking around without coats, in shirtsleeves, even in t-shirts and shorts.
Context is critical.