Champaign, IL Weather & Climate Normals
What a normal year in Champaign actually looks like
On the 30-year record NOAA keeps for Champaign, IL, the comfort score comes out to 41/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 4 months a year land in the 55–75°F range this site treats as mild.
How much Champaign's weather actually swings
Average temperatures in Champaign run from 26°F in Jan up to 75°F in Jul, a 49.5°F seasonal swing, one of the widest gaps in this dataset.
Champaign, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 34°F | 18°F | 2.31in | 6.5in |
| Feb | 38°F | 21°F | 2.18in | 5.8in |
| Mar | 50°F | 31°F | 2.77in | 2.5in |
| Apr | 63°F | 42°F | 3.94in | 0.3in |
| May | 74°F | 53°F | 4.78in | 0in |
| Jun | 83°F | 62°F | 4.58in | 0in |
| Jul | 85°F | 65°F | 4.49in | 0in |
| Aug | 84°F | 64°F | 3.54in | 0in |
| Sep | 79°F | 56°F | 3.37in | 0in |
| Oct | 66°F | 44°F | 3.35in | 0in |
| Nov | 51°F | 32°F | 3.21in | 0.9in |
| Dec | 39°F | 24°F | 2.4in | 4.8in |
If you're timing a visit, May, Jun, Aug, and Sep are Champaign's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet Champaign actually gets
Over a typical year, Champaign sees about 40.92in of precipitation a year across roughly 123 days with measurable rain or snow, with 20.8in of snow a year.
Champaign against the rest of the country
Out of 4876 cities scored here, Champaign comes in at 4344; within IL alone it ranks 285 of 330. Population is about 91,961.
Checking the actual forecast
These figures come from Champaign 3s, IL US, the NOAA station 2.8 miles from Champaign, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated