Fresno, California weather in December

Averages from 2021–2025 (155 days of record).

Average high: 57°F
Average low: 41°F
Rainy days: ~7 per month
Total precipitation: 3.7 in
Warmest recorded: 76°F
Coldest recorded: 31°F

Expect December days in Fresno, California to top out around 57°F and cool to about 41°F overnight, with roughly 7 days of measurable rain across the month. In recent years December has ranged from 31°F to 76°F.

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Current Fresno, California forecast → · Historical data by Open-Meteo (ERA5).