December weather in Chicago, United States
Averages from 155 days in December across 2020–2024.
Typical conditions
| Average high | 4.4°C |
|---|---|
| Average low | -2.2°C |
| Average mean | 1°C |
| Total precipitation | 310.2 mm |
| Rainy days | 72 |
| Average precipitation hours | 3.1 h |
| Average max wind speed | 25.2 km/h |
| Average sunshine | 4.7 h/day |
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