December in Huntsville averages a daily high of 12.6°C with nights around 2°C. Expect roughly 10.9 wet days totalling 144.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Huntsville is April–May.
Based on HUNTSVILLE INTNL AIRPORT, AL US (20.7km), 1995–2024. 30 years of December data.