Chillicothe, IL Weather & Climate Normals
What a normal year in Chillicothe actually looks like
On the 30-year record NOAA keeps for Chillicothe, 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 Chillicothe's weather actually swings
Average temperatures in Chillicothe run from 26°F in Jan up to 76°F in Jul, a 50.2°F seasonal swing, one of the widest gaps in this dataset.
How wet Chillicothe actually gets
Over a typical year, Chillicothe sees about 38.39in of precipitation a year across roughly 114 days with measurable rain or snow, with 24.6in of snow a year.
Chillicothe against the rest of the country
Out of 4876 cities scored here, Chillicothe comes in at 3588; within IL alone it ranks 155 of 330. Population is about 6,052.
Checking the actual forecast
These figures come from LACON, IL US, the NOAA station 8.4 miles from Chillicothe, 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