Coldest Decembers in California since 1895

Written by:
December 9, 2025
Leonid Ikan // Shutterstock

Coldest Decembers in California since 1895

compiled a ranking of the coldest Decembers in California since 1895 using data from the . Rankings are based on the lowest average temperature in each month. For each of the coldest months listed below, we've included the average state temperature, state-wide highs and lows for the month, and the total precipitation.

#10. December 1911 (tie)
- Average temperature: 39.9°F
- Monthly high temperature: 51°F
- Monthly low temperature: 28.8°F
- Total precipitation: 1.81"

#10. December 1909 (tie)
- Average temperature: 39.9°F
- Monthly high temperature: 48°F
- Monthly low temperature: 31.8°F
- Total precipitation: 5.53"

#9. December 1967
- Average temperature: 39.6°F
- Monthly high temperature: 49.4°F
- Monthly low temperature: 29.8°F
- Total precipitation: 2.82"

#8. December 1916
- Average temperature: 39.3°F
- Monthly high temperature: 49.3°F
- Monthly low temperature: 29.3°F
- Total precipitation: 4.29"

#7. December 1978
- Average temperature: 39.2°F
- Monthly high temperature: 49.4°F
- Monthly low temperature: 29°F
- Total precipitation: 1.53"

#6. December 1972
- Average temperature: 39°F
- Monthly high temperature: 48°F
- Monthly low temperature: 29.9°F
- Total precipitation: 2.97"

#5. December 1914
- Average temperature: 38.9°F
- Monthly high temperature: 47.6°F
- Monthly low temperature: 30.2°F
- Total precipitation: 4"

#4. December 1971
- Average temperature: 38.7°F
- Monthly high temperature: 47.4°F
- Monthly low temperature: 30.1°F
- Total precipitation: 5.01"

#3. December 1948
- Average temperature: 38.6°F
- Monthly high temperature: 47.9°F
- Monthly low temperature: 29.3°F
- Total precipitation: 3.72"

#1. December 1990 (tie)
- Average temperature: 38.4°F
- Monthly high temperature: 50°F
- Monthly low temperature: 26.8°F
- Total precipitation: 0.91"

#1. December 1932 (tie)
- Average temperature: 38.4°F
- Monthly high temperature: 48.2°F
- Monthly low temperature: 28.4°F
- Total precipitation: 2.7"

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