Peoria, IL Weather & Climate Normals
What a normal year in Peoria actually looks like
On the 30-year record NOAA keeps for Peoria, IL, the comfort score comes out to 45/100, 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 Peoria's weather actually swings
Average temperatures in Peoria run from 24°F in Jan up to 74°F in Jul, a 50.9°F seasonal swing, one of the widest gaps in this dataset.
How wet Peoria actually gets
Over a typical year, Peoria sees about 38.82in of precipitation a year across roughly 107 days with measurable rain or snow, with 20.3in of snow a year.
Peoria against the rest of the country
Out of 4876 cities scored here, Peoria comes in at 3221; within IL alone it ranks 113 of 330. Population is about 111,696.
Checking the actual forecast
These figures come from PRINCEVILLE, IL US, the NOAA station 14.2 miles from Peoria, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is