Late 80s at Eielson AFB outside of Fairbanks, I think we had static temperatures down to -68. The south end of the base was lower than the north end and would usually run 10 degrees colder. We were having one of the multi-service BRIM FROST exercises. They had those poor Army guys over in the Tanana Flats and they had a number of serious frostbite cases before they had enough sense to evacuate/ENDEX the exercise.
Conversely deploying to the sandbox, I've seen something like 135. How many people can say they've experienced 200 degree temperature differences in their lifetime??