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i looked up some avg. on temp and rain for fairbanks in 2018 and 2019 june 2018 84 max 36 low 59 avg with .02 rain avg day
july 1018 88 max 41 low 65 avg with .03 rain june 2019 88 max 44 low 64 avg with .06 rain july 2019 87 max 51 low 66 avg with .03 rain so i would say july would be the better out of the 2