Hillsboro, IL Weather & Climate Normals
What a normal year in Hillsboro actually looks like
On the 30-year record NOAA keeps for Hillsboro, IL, the comfort score comes out to 47/100, 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 Hillsboro's weather actually swings
Average temperatures in Hillsboro run from 28°F in Jan up to 76°F in Jul, a 48.6°F seasonal swing, one of the widest gaps in this dataset.
How wet Hillsboro actually gets
Over a typical year, Hillsboro sees about 38.12in of precipitation a year across roughly 100 days with measurable rain or snow, with 16.2in of snow a year.
Hillsboro against the rest of the country
Out of 4876 cities scored here, Hillsboro comes in at 2859; within IL alone it ranks 91 of 330. Population is about 5,761.
Checking the actual forecast
These figures come from MORRISONVILLE, IL US, the NOAA station 16.6 miles from Hillsboro, 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