Berkeley, IL Weather & Climate Normals
Berkeley's real weather, in one number
Berkeley, IL scores 38/100 on this site's reading of NOAA's own 30-year normals: weather-driven. Heat, cold, snow, or rainfall here are heavy enough that they shape daily life for a large part of the year. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Berkeley's hottest and coldest months
Berkeley's hottest month is Jul, averaging 76°F; its coldest is Jan, averaging 25°F, a 50.3°F swing across the year, one of the widest gaps in this dataset.
Berkeley's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 32°F | 19°F | 1.99in | 11.3in |
| Feb | 36°F | 22°F | 1.97in | 10.7in |
| Mar | 47°F | 31°F | 2.45in | 5.5in |
| Apr | 59°F | 40°F | 3.75in | 1.3in |
| May | 71°F | 51°F | 4.49in | 0in |
| Jun | 80°F | 61°F | 4.1in | 0in |
| Jul | 85°F | 66°F | 3.71in | 0in |
| Aug | 83°F | 65°F | 4.25in | 0in |
| Sep | 76°F | 57°F | 3.19in | 0in |
| Oct | 63°F | 45°F | 3.43in | 0.2in |
| Nov | 48°F | 34°F | 2.42in | 1.8in |
| Dec | 37°F | 24°F | 2.11in | 7.6in |
May, Jun, Aug, and Sep are the best time to see Berkeley at its mildest; the rest of the year, plan around Jul's heat and Jan's cold.
Rain and snow in Berkeley
Berkeley averages 37.86in of precipitation a year across roughly 126 days with measurable rain or snow, and 38.4in of snow a year.
Where Berkeley ranks
Berkeley ranks 4745 of 4876 US cities in this dataset for comfort score, and 317 of 330 within IL. About 5,155 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Chicago Ohare Intl Ap, IL US, 7.4 miles from Berkeley, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure