December in Omaha averages a daily high of 3.1°C with nights around -7.1°C. Expect roughly 6.5 wet days totalling 31.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Omaha is September–October.
Based on OMAHA EPPLEY AIRFIELD, NE US (7km), 1995–2024. 29 years of December data.