December in Reno averages a daily high of 7.2°C with nights around -2.6°C. Expect roughly 7.1 wet days totalling 36.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Reno is May–June.
Based on RENO WEATHER FORECAST OFFICE, NV US (4.6km), 1995–2024. 29 years of December data.