Winter temperatures · Illinois
How cold does Peoria get in winter?
In a typical winter, December to February, Peoria averages highs around 37°F and lows around 21°F.
About 37 days a year never get above freezing. About 20 nights a year drop to 10°F or colder, and about 6 go below zero. That makes it the 39th coldest winter of the 129 US cities we track.
Last updated
The coldest low in the forecast for the next 48 hours is about 28°F.
Peoria averages winter highs around 37°F, which in central Illinois is basically a tepid handshake.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
More about the weather here
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Winter at a glance
| Average winter high | 37°F |
|---|---|
| Average winter low | 21°F |
| Days a year that stay below freezing | 37 |
| Nights a year at 32°F or colder | 118 |
| Nights a year at 10°F or colder | 20 |
| Nights a year below zero | 6 |
| Average summer high, for comparison | 85°F |
Winter here is December to February. Counts are averages a year.
Cities with about the same winter
- Rochester, New York: highs around 36°F, lows around 21°F
- Cheyenne, Wyoming: highs around 40°F, lows around 18°F
- Detroit, Michigan: highs around 35°F, lows around 22°F
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00014842.