Coldest Septembers in Wyoming since 1895
compiled a ranking of the coldest Septembers in Wyoming 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. September 1970 (tie)
- Average temperature: 50.1掳F
- Monthly high temperature: 64.6掳F
- Monthly low temperature: 35.6掳F
- Total precipitation: 1.35"
#10. September 1934 (tie)
- Average temperature: 50.1掳F
- Monthly high temperature: 64.9掳F
- Monthly low temperature: 35.3掳F
- Total precipitation: 1.09"
#8. September 1986 (tie)
- Average temperature: 49.9掳F
- Monthly high temperature: 61.7掳F
- Monthly low temperature: 38掳F
- Total precipitation: 2.12"
#8. September 1971 (tie)
- Average temperature: 49.9掳F
- Monthly high temperature: 64掳F
- Monthly low temperature: 35.7掳F
- Total precipitation: 1.52"
#6. September 1929 (tie)
- Average temperature: 49.6掳F
- Monthly high temperature: 61.4掳F
- Monthly low temperature: 37.8掳F
- Total precipitation: 2.11"
#6. September 1903 (tie)
- Average temperature: 49.6掳F
- Monthly high temperature: 63掳F
- Monthly low temperature: 36.1掳F
- Total precipitation: 1.65"
#5. September 1926
- Average temperature: 49.5掳F
- Monthly high temperature: 64.4掳F
- Monthly low temperature: 34.6掳F
- Total precipitation: 1.44"
#4. September 1985
- Average temperature: 49.3掳F
- Monthly high temperature: 62.3掳F
- Monthly low temperature: 36.4掳F
- Total precipitation: 1.91"
#3. September 1961
- Average temperature: 47.7掳F
- Monthly high temperature: 59.9掳F
- Monthly low temperature: 35.6掳F
- Total precipitation: 2.71"
#2. September 1912
- Average temperature: 45.4掳F
- Monthly high temperature: 56.3掳F
- Monthly low temperature: 34.5掳F
- Total precipitation: 2.23"
#1. September 1965
- Average temperature: 44.6掳F
- Monthly high temperature: 56.2掳F
- Monthly low temperature: 33掳F
- Total precipitation: 2.21"
