Coldest Octobers in Montana since 1895

Written by:
October 23, 2025
Berit Kessler // Shutterstock

Coldest Octobers in Montana since 1895

compiled a ranking of the coldest Octobers in Montana 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. October 1913 (tie)
- Average temperature: 38.4掳F
- Monthly high temperature: 48.7掳F
- Monthly low temperature: 28.1掳F
- Total precipitation: 2.14"

#10. October 1905 (tie)
- Average temperature: 38.4掳F
- Monthly high temperature: 49.1掳F
- Monthly low temperature: 27.8掳F
- Total precipitation: 1.29"

#9. October 1930
- Average temperature: 37.8掳F
- Monthly high temperature: 47.4掳F
- Monthly low temperature: 28.2掳F
- Total precipitation: 1.75"

#8. October 1946
- Average temperature: 37.4掳F
- Monthly high temperature: 46.5掳F
- Monthly low temperature: 28.3掳F
- Total precipitation: 2.98"

#7. October 1898
- Average temperature: 37.1掳F
- Monthly high temperature: 46.6掳F
- Monthly low temperature: 27.6掳F
- Total precipitation: 1.77"

#6. October 2002
- Average temperature: 36.6掳F
- Monthly high temperature: 48.6掳F
- Monthly low temperature: 24.6掳F
- Total precipitation: 0.68"

#4. October 2009 (tie)
- Average temperature: 36.4掳F
- Monthly high temperature: 45.5掳F
- Monthly low temperature: 27.2掳F
- Total precipitation: 2.17"

#4. October 1969 (tie)
- Average temperature: 36.4掳F
- Monthly high temperature: 45.7掳F
- Monthly low temperature: 27.1掳F
- Total precipitation: 1.44"

#3. October 2019
- Average temperature: 35.4掳F
- Monthly high temperature: 46.7掳F
- Monthly low temperature: 24.1掳F
- Total precipitation: 1.36"

#2. October 1925
- Average temperature: 32.9掳F
- Monthly high temperature: 42.4掳F
- Monthly low temperature: 23.4掳F
- Total precipitation: 1.9"

#1. October 1919
- Average temperature: 32.4掳F
- Monthly high temperature: 42.8掳F
- Monthly low temperature: 22.1掳F
- Total precipitation: 1.89"

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