Coldest Decembers in Colorado since 1895

Written by:
December 9, 2025
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Coldest Decembers in Colorado since 1895

compiled a ranking of the coldest Decembers in Colorado 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
- Average temperature: 19.4°F
- Monthly high temperature: 32.1°F
- Monthly low temperature: 6.8°F
- Total precipitation: 0.91"

#9. December 1972
- Average temperature: 19.2°F
- Monthly high temperature: 30.7°F
- Monthly low temperature: 7.6°F
- Total precipitation: 1.67"

#8. December 1983
- Average temperature: 18.9°F
- Monthly high temperature: 28.7°F
- Monthly low temperature: 9.1°F
- Total precipitation: 2.45"

#7. December 1914
- Average temperature: 18.8°F
- Monthly high temperature: 30.4°F
- Monthly low temperature: 7.2°F
- Total precipitation: 0.88"

#6. December 1978
- Average temperature: 18.4°F
- Monthly high temperature: 30.3°F
- Monthly low temperature: 6.6°F
- Total precipitation: 2.17"

#5. December 1913
- Average temperature: 18.1°F
- Monthly high temperature: 29.6°F
- Monthly low temperature: 6.7°F
- Total precipitation: 2.53"

#3. December 1924 (tie)
- Average temperature: 17.8°F
- Monthly high temperature: 29.9°F
- Monthly low temperature: 5.7°F
- Total precipitation: 2"

#3. December 1898 (tie)
- Average temperature: 17.8°F
- Monthly high temperature: 30.9°F
- Monthly low temperature: 4.8°F
- Total precipitation: 1.19"

#2. December 1932
- Average temperature: 17.5°F
- Monthly high temperature: 30°F
- Monthly low temperature: 5°F
- Total precipitation: 1.14"

#1. December 1909
- Average temperature: 14.9°F
- Monthly high temperature: 25.8°F
- Monthly low temperature: 3.9°F
- Total precipitation: 1.74"

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