Coldest Octobers in Illinois since 1895
compiled a ranking of the coldest Octobers in Illinois 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. October 1909 (tie)
- Average temperature: 50.2掳F
- Monthly high temperature: 62.3掳F
- Monthly low temperature: 38掳F
- Total precipitation: 2.64"
#9. October 1896 (tie)
- Average temperature: 50.2掳F
- Monthly high temperature: 62.5掳F
- Monthly low temperature: 37.9掳F
- Total precipitation: 1.28"
#8. October 2009
- Average temperature: 50.1掳F
- Monthly high temperature: 58.4掳F
- Monthly low temperature: 41.7掳F
- Total precipitation: 8.49"
#7. October 1952
- Average temperature: 49.2掳F
- Monthly high temperature: 64掳F
- Monthly low temperature: 34.4掳F
- Total precipitation: 0.67"
#5. October 1988 (tie)
- Average temperature: 48.7掳F
- Monthly high temperature: 60.3掳F
- Monthly low temperature: 37.1掳F
- Total precipitation: 2.58"
#5. October 1987 (tie)
- Average temperature: 48.7掳F
- Monthly high temperature: 60.9掳F
- Monthly low temperature: 36.4掳F
- Total precipitation: 1.3"
#4. October 1976
- Average temperature: 48.3掳F
- Monthly high temperature: 59.7掳F
- Monthly low temperature: 36.9掳F
- Total precipitation: 3.18"
#3. October 1895
- Average temperature: 47.4掳F
- Monthly high temperature: 60.6掳F
- Monthly low temperature: 34.1掳F
- Total precipitation: 0.6"
#2. October 1917
- Average temperature: 45.5掳F
- Monthly high temperature: 56.5掳F
- Monthly low temperature: 34.4掳F
- Total precipitation: 2.89"
#1. October 1925
- Average temperature: 44.9掳F
- Monthly high temperature: 53.3掳F
- Monthly low temperature: 36.6掳F
- Total precipitation: 3.91"
