Weather In Omaha Nebraska In December 2024. The coldest and snowiest periods will occur in late january and early and late february. Expect 1°c daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in omaha in december.

November 2024 to october 2025 winter will be warmer than normal, with precipitation and snowfall below normal. The highest temperatures this month can reach up to about 36.5°f (2.5°c),.