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> Usa > Chicago, Illinois > Temperatures
Average Temperatures in Chicago, Illinois, Usa
- The mean annual temperature in Chicago, Illinois, Usa is quite mild at 10.5 degrees Celsius (50.8 degrees Fahrenheit).
- There is a variation of average monthly temperatures of 27.5 °C (49.5°F) which is a moderate range.
- The range/ variation of diurnal average temperatures is 8.8 °C (15.8 °F).
- July is the warmest month (fairly hot) with an average temperature of 24.5 degrees Celsius (76.1 degrees Fahrenheit).
- January is the coldest month (slightly cold) having an average temperature of -3 degrees Celsius (26.6 degrees Fahrenheit).
Average Temperatures Table for Chicago, Illinois
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Max Temperature °C ( °F) | 1 (33.8) | 2 (35.6) | 6 (42.8) | 14 (57.2) | 21 (69.8) | 26 (78.8) | 29 (84.2) | 28 (82.4) | 24 (75.2) | 17 (62.6) | 8 (46.4) | 2 (35.6) | 14.8 (58.7) | |
 | Average Temperature °C ( °F) | -3 (26.6) | -2 (28.4) | 2 (35.6) | 9.5 (49.1) | 16 (60.8) | 21 (69.8) | 24.5 (76.1) | 23.5 (74.3) | 19 (66.2) | 12.5 (54.5) | 4 (39.2) | -1.5 (29.3) | 10.5 (50.8) | |
 | Average Min Temperature °C ( °F) | -7 (19.4) | -6 (21.2) | -2 (28.4) | 5 (41) | 11 (51.8) | 16 (60.8) | 20 (68) | 19 (66.2) | 14 (57.2) | 8 (46.4) | 0 (32) | -5 (23) | 6.1 (43) |
Chicago, Illinois Average Temperatures Chart
The average temperature charts use a fixed scale so that you can easily compare temperatures between two or more locations. Simply line up the charts in separate tabs in your browser and toggle between tabs to visualise the differences. The charts have major grid lines at intervals of 10 °C on the left axis corresponding with intervals of 18 °F on the right axis. Minor gridlines mark intervals of 2.5 °C and 4.5 °F. The charts show the relationship between the Celsius and Fahrenheit measuring scales. Locations in the northern hemisphere run from January to December and in the southern hemisphere from July to June so that the middle of the chart always corresponds with the high sun period (for the hemisphere).
