Octobers with the most precipitation in Illinois since 1895
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compiled a ranking of the wettest Octobers in Illinois since 1895 using data from the . Rankings are based on the highest total precipitation in each month. For each of the months listed below, we've included the total precipitation, state-wide highs and lows for the month, and the average state temperature.
#10. October 2019 (tie)
- Total precipitation: 5 inches
- Average temperature: 53.7°F
- Monthly high temperature: 64.3°F
- Monthly low temperature: 43°F
#10. October 2017 (tie)
- Total precipitation: 5 inches
- Average temperature: 58.1°F
- Monthly high temperature: 68.1°F
- Monthly low temperature: 48°F
#9. October 1967
- Total precipitation: 5.07 inches
- Average temperature: 53.4°F
- Monthly high temperature: 63.9°F
- Monthly low temperature: 42.8°F
#8. October 1954
- Total precipitation: 5.1 inches
- Average temperature: 55°F
- Monthly high temperature: 65.3°F
- Monthly low temperature: 44.6°F
#7. October 1969
- Total precipitation: 5.7 inches
- Average temperature: 52.8°F
- Monthly high temperature: 63.7°F
- Monthly low temperature: 41.8°F
#6. October 1991
- Total precipitation: 5.96 inches
- Average temperature: 55.6°F
- Monthly high temperature: 67°F
- Monthly low temperature: 44.2°F
#5. October 2021
- Total precipitation: 6.02 inches
- Average temperature: 60.2°F
- Monthly high temperature: 69.3°F
- Monthly low temperature: 51.1°F
#4. October 2001
- Total precipitation: 6.08 inches
- Average temperature: 53.8°F
- Monthly high temperature: 64.6°F
- Monthly low temperature: 43.1°F
#3. October 1919
- Total precipitation: 6.91 inches
- Average temperature: 56.8°F
- Monthly high temperature: 67.5°F
- Monthly low temperature: 46.2°F
#2. October 2009
- Total precipitation: 8.49 inches
- Average temperature: 50.1°F
- Monthly high temperature: 58.4°F
- Monthly low temperature: 41.7°F
#1. October 1941
- Total precipitation: 9.06 inches
- Average temperature: 57.6°F
- Monthly high temperature: 67.1°F
- Monthly low temperature: 48°F
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