Tuesday was the fifth day of the Tanana Valley Fair, and the third day thus far with a high temperature in the 80s. So this raises the question; how unusual are 80 plus temperatures this late in the summer in Fairbanks?
Here's a plot of the calendar day frequency (1930-2012) of days with maximum temperature ≥80F (disclaimer: the plotted data is a three day running mean frequency, just to smooth out the curve):
As you can see, the frequency of hot days in early August is about half that in late June and early July. So while 80ºF temperatures are uncommon this time of year, this is by no means unprecedented.
So, today's trivia questions are: what's the most number of days during the Tanana Valley Fair with a high temperature of 80F or higher? And will the 2013 Fair break that record?