Coal City, IL Weather & Climate Normals
Coal City's real weather, in one number
Coal City, IL scores 46/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Coal City's hottest and coldest months
Coal City's hottest month is Jul, averaging 75°F; its coldest is Jan, averaging 24°F, a 50.7°F swing across the year, one of the widest gaps in this dataset.
Coal City's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 32°F | 17°F | 2.08in | 6.4in |
| Feb | 37°F | 20°F | 1.68in | 5.2in |
| Mar | 48°F | 30°F | 2.15in | 0.4in |
| Apr | 61°F | 40°F | 3.78in | 0in |
| May | 72°F | 51°F | 4.61in | 0in |
| Jun | 81°F | 60°F | 4.5in | 0in |
| Jul | 85°F | 65°F | 3.85in | 0in |
| Aug | 83°F | 63°F | 3.75in | 0in |
| Sep | 77°F | 56°F | 3.25in | 0in |
| Oct | 64°F | 44°F | 3.09in | 0in |
| Nov | 50°F | 33°F | 2.52in | 0.3in |
| Dec | 37°F | 23°F | 1.96in | 6.1in |
May, Jun, Jul, Aug, and Sep are the best time to see Coal City at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Coal City
Coal City averages 37.22in of precipitation a year across roughly 120 days with measurable rain or snow, and 18.4in of snow a year.
Where Coal City ranks
Coal City ranks 3178 of 4876 US cities in this dataset for comfort score, and 110 of 330 within IL. About 5,810 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Channahon Dresden Isl Dam, IL US, 8.2 miles from Coal City, not a prediction for any specific day.
More on how this is worked out
What a 30-year climate normal actually is · Why this uses the nearest NOAA station