Evanston, IL Weather & Climate Normals
What a normal year in Evanston actually looks like
On the 30-year record NOAA keeps for Evanston, IL, the comfort score comes out to 44/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Evanston's weather actually swings
Average temperatures in Evanston run from 24°F in Jan up to 74°F in Jul, a 49.2°F seasonal swing, one of the widest gaps in this dataset.
How wet Evanston actually gets
Over a typical year, Evanston sees about 39.51in of precipitation a year across roughly 130 days with measurable rain or snow, with 33.6in of snow a year.
Evanston against the rest of the country
Out of 4876 cities scored here, Evanston comes in at 3671; within IL alone it ranks 162 of 330. Population is about 76,006.
Checking the actual forecast
These figures come from CHICAGO BOTANIC GARDEN, IL US, the NOAA station 8.0 miles from Evanston, 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