The hottest, coldest, wettest and snowiest days Normal has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 19 years of daily weather observations (2006–present), from the Central Illinois Regional Airport station 5 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.
The four kinds of extreme
The hottest, coldest, wettest and snowiest single days Normal
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
103°FJul 6, 2012
The three most extreme on record
1103°FJul 6, 2012
2103°FJul 7, 2012
3101°FJul 5, 2012
❄️Coldest night
-22°FJan 16, 2009
The three most extreme on record
1-22°FJan 16, 2009
2-21°FJan 30, 2019
3-17°FJan 6, 2014
🌧️Most rain in one day
4.42 inJul 9, 2015
The three most extreme on record
14.42 inJul 9, 2015
24.32 inJun 26, 2021
33.43 inOct 23, 2009
In plain terms
Across the record, Normal has reached as high as 103°F and as low as −22°F. A single day has delivered over 4 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Greater Peoria Regional Airport, a weather station, about 61 km from the city centre. The underlying daily records come from NOAA's global station network.