Hottest Januarys in Illinois since 1895
In 2022, the continental United States experienced its , according to data from the National Oceanic and Atmospheric Administration, while 20 states saw one of their in the same month. The year prior, July marked the .
Climate change is driving rising temperatures and more record heat. The has climbed each decade since 1880 by about .14 degrees Fahrenheit, or roughly 2 degrees Fahrenheit total.
compiled a ranking of the hottest Januarys in Illinois since 1895 using data from the . Rankings are based on the highest average temperature in each month. For each of the hottest months listed below, we've included the average state temperature, state-wide highs and lows for the month, and the total precipitation.
#10. January 1921
- Average temperature: 32.4掳F
- Monthly high temperature: 39.9掳F
- Monthly low temperature: 24.8掳F
- Total precipitation: 1.57"
#9. January 1914
- Average temperature: 32.6掳F
- Monthly high temperature: 40.1掳F
- Monthly low temperature: 25掳F
- Total precipitation: 1.88"
#8. January 1939
- Average temperature: 32.7掳F
- Monthly high temperature: 40.5掳F
- Monthly low temperature: 24.8掳F
- Total precipitation: 3.04"
#7. January 2002
- Average temperature: 33.6掳F
- Monthly high temperature: 42.6掳F
- Monthly low temperature: 24.6掳F
- Total precipitation: 2.22"
#6. January 1932
- Average temperature: 33.9掳F
- Monthly high temperature: 41.1掳F
- Monthly low temperature: 26.8掳F
- Total precipitation: 2.96"
#5. January 2023
- Average temperature: 34.4掳F
- Monthly high temperature: 41.1掳F
- Monthly low temperature: 27.7掳F
- Total precipitation: 2.62"
#4. January 1989
- Average temperature: 34.8掳F
- Monthly high temperature: 43.3掳F
- Monthly low temperature: 26.3掳F
- Total precipitation: 1.58"
#3. January 1990
- Average temperature: 36.4掳F
- Monthly high temperature: 45.5掳F
- Monthly low temperature: 27.2掳F
- Total precipitation: 2.05"
#2. January 1933
- Average temperature: 36.9掳F
- Monthly high temperature: 46.1掳F
- Monthly low temperature: 27.7掳F
- Total precipitation: 2.56"
#1. January 2006
- Average temperature: 38.1掳F
- Monthly high temperature: 45.6掳F
- Monthly low temperature: 30.6掳F
- Total precipitation: 2.74"
