Cold snaps in Fairbanks, Alaska, are becoming less frequent and less severe due to climate change and other factors, according to climatologist Rick Thoman. While recent temperatures have dipped into the negative 30s and 40s Fahrenheit, they won't add up to the kind of severe, week-long cold snap that used to be more common in Fairbanks. Thoman mapped out the "great cold snaps" using the Fairbanks weather record and found that over the last 80 years, the more recent cold snaps haven't been as cold and they're occurring less frequently than they used to.