| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average temperature in Chicago, Illinois in December is slightly cold at -1.5 °C (29.3 °F).
- Afternoons can be very cool with average high temperatures reaching 2 °C (35.6 °F).
- Overnight temperatures are generally cold with an average low of -5 °C (23 °F).
- In December the variation/ range of diurnal mean temperatures is 7 °C (12.6 °F).
- The weather in December is a little parched with snow at times. A mere 48mm (1.9in) of liquid tumbles across an average of 10 days.
- The blue above Chicago, Illinois is somewhat dreary with on balance merely 3:42 of intense sunlight per day.
- The shortest day is 9:08 long and the longest day is 9:20 long with an average length of 9:11.
- There are approximately 5:18 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
- It is sunny approximately 41.1% of daylight hours and cloudy 58.9% of daylight hours.
Check the distance to and compare the Chicago, Illinois December averages with somewhere beginning with:
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Weather Trend Graph for December in Chicago, Illinois, Usa
Navigate to December Weather in Locations Surrounding Chicago, Illinois:
- Racine, Wi, Usa - 104.9 kms (65.2 miles) N
- Rockford, Il, Usa - 120.8 kms (75.1 miles) WNW
- Marengo, Il, Usa - 106.2 kms (66 miles) WNW
- Aurora, Il, Usa - 31.8 kms (19.7 miles) NW
- Chicago/ 0'Hare, Il, Usa - 25.5 kms (15.8 miles) NNW