East Peoria, IL Weather & Climate Normals
What a normal year in East Peoria actually looks like
On the 30-year record NOAA keeps for East Peoria, 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 East Peoria's weather actually swings
Average temperatures in East Peoria run from 25°F in Jan up to 75°F in Jul, a 50°F seasonal swing, one of the widest gaps in this dataset.
East Peoria, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 33°F | 17°F | 2.05in | 6.8in |
| Feb | 38°F | 21°F | 1.76in | 5.2in |
| Mar | 50°F | 31°F | 2.44in | 2.8in |
| Apr | 63°F | 41°F | 3.77in | 0.8in |
| May | 74°F | 52°F | 4.77in | 0in |
| Jun | 83°F | 61°F | 4.05in | 0in |
| Jul | 86°F | 65°F | 3.86in | 0in |
| Aug | 84°F | 63°F | 3.74in | 0in |
| Sep | 80°F | 55°F | 3.21in | 0in |
| Oct | 67°F | 43°F | 3.14in | 0in |
| Nov | 51°F | 32°F | 2.64in | 1.5in |
| Dec | 39°F | 23°F | 2.04in | 5.2in |
If you're timing a visit, May, Jun, Aug, and Sep are East Peoria's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet East Peoria actually gets
Over a typical year, East Peoria sees about 37.47in of precipitation a year across roughly 110 days with measurable rain or snow, with 22.3in of snow a year.
East Peoria against the rest of the country
Out of 4876 cities scored here, East Peoria comes in at 4383; within IL alone it ranks 288 of 330. Population is about 22,024.
Checking the actual forecast
These figures come from Congerville 2nw, IL US, the NOAA station 16.2 miles from East Peoria, 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