How extreme does Bloomington's weather get?

The hottest, coldest, wettest and snowiest days Bloomington 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 4 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 Bloomington has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

103°F Jul 6, 2012

The three most extreme on record

1 103°F Jul 6, 2012

2 103°F Jul 7, 2012

3 101°F Jul 5, 2012

❄️ Coldest night

-22°F Jan 16, 2009

The three most extreme on record

1 -22°F Jan 16, 2009

2 -21°F Jan 30, 2019

3 -17°F Jan 6, 2014

🌧️ Most rain in one day

4.42 in Jul 9, 2015

The three most extreme on record

1 4.42 in Jul 9, 2015

2 4.32 in Jun 26, 2021

3 3.43 in Oct 23, 2009

In plain terms

Across the record, Bloomington 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 62 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

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