Weather Calendar December 2025 Illinois

Weather Calendar December 2025 Illinois. For longer leads beginning in amj 2025 through aso 2025, the outlook resembles decadal temperature trends, where above normal temperatures are favored. It should be noted an improvement from the previous month since in november it receives an.

Will it be a bad winter? Expect 2°c daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in chicago in december.