December in Hesperia averages a daily high of 15.1°C with nights around 0.3°C. Expect roughly 3.4 wet days totalling 22mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Hesperia is March–May.
Based on VICTORVILLE, CA US (11km), 1995–2024. 25 years of December data.