Coldest Septembers in Montana since 1895
compiled a ranking of the coldest Septembers 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.
#9. September 1929 (tie)
- Average temperature: 49.4掳F
- Monthly high temperature: 61.9掳F
- Monthly low temperature: 36.9掳F
- Total precipitation: 1.54"
#9. September 1896 (tie)
- Average temperature: 49.4掳F
- Monthly high temperature: 61.9掳F
- Monthly low temperature: 37掳F
- Total precipitation: 2.3"
#8. September 1984
- Average temperature: 49.1掳F
- Monthly high temperature: 61.6掳F
- Monthly low temperature: 36.5掳F
- Total precipitation: 1.61"
#7. September 1986
- Average temperature: 48.9掳F
- Monthly high temperature: 57.9掳F
- Monthly low temperature: 39.9掳F
- Total precipitation: 3.94"
#6. September 1901
- Average temperature: 48.7掳F
- Monthly high temperature: 59掳F
- Monthly low temperature: 38.3掳F
- Total precipitation: 2.18"
#5. September 1961
- Average temperature: 48.1掳F
- Monthly high temperature: 59.9掳F
- Monthly low temperature: 36.2掳F
- Total precipitation: 2.8"
#4. September 1985
- Average temperature: 47.8掳F
- Monthly high temperature: 57.9掳F
- Monthly low temperature: 37.8掳F
- Total precipitation: 3.09"
#3. September 1912
- Average temperature: 47掳F
- Monthly high temperature: 58.4掳F
- Monthly low temperature: 35.6掳F
- Total precipitation: 1.9"
#2. September 1926
- Average temperature: 46.7掳F
- Monthly high temperature: 58.4掳F
- Monthly low temperature: 35.1掳F
- Total precipitation: 2.59"
#1. September 1965
- Average temperature: 43.6掳F
- Monthly high temperature: 53.4掳F
- Monthly low temperature: 33.8掳F
- Total precipitation: 2.38"
