This is rather frivolous, but I couldn't resist another opportunity to illustrate the extreme climate of interior Alaska. The chart below shows the range of possibilities for the amount of cooling that will be observed in Fairbanks over the next month, starting from yesterday's remarkable high temperature of 57 °F. The probabilities are derived simply by looking at the lowest temperature observed by November 18 in each year back to 1930. We are virtually assured of seeing temperatures below 0 °F in the next month, and it's not impossible that the temperature could drop nearly 100 °F, i.e. to -40°. Only two years ago the temperature reached -41 °F on November 17.
By the way, the largest temperature drop observed in Fairbanks in 30 days or less is 100 °F, observed in both 1934 (34 to -66 °F in only 8 days) and 1935 (58 to -42). The largest temperature rise in 30 days or less is 103 °F.