ClimateAverages

Bloomington Climate

Indiana, United States of America · population 84,067 · 366 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
17.8°C
Warmest month · July
30.4°C
Typical daytime high
Coldest month · January
-7.0°C
Typical overnight low

Bloomington has an average annual daytime high of 17.8°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 30.4°C, and its coldest is January, with overnight lows near -7.0°C.

Month by month averages

MonthAvg highAvg low
January2.9°C-7.0°CColdest
February5.5°C-5.4°C
March11.0°C-0.4°C
April18.4°C5.6°C
May23.7°C10.8°C
June28.4°C15.7°C
July30.4°C17.7°CWarmest
August29.8°C16.7°C
September26.6°C12.9°C
October19.9°C6.0°C
November11.6°C0.8°C
December5.3°C-4.1°C

Temperature range across the year

-9°1°12°22°32°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2011
+2.5°C vs. 1951–1980
Coldest year on record
1787
-2.9°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Bloomington getting hotter?

Since 1900, Bloomington's average temperature has risen by +1.9°C. Compared to the earliest station records that begin in 1750, warming totals +2.2°C.

11.2°11.8°12.4°13.0°13.7°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
April to October

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Bloomington?

Bloomington's average annual daytime high is 17.8°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 30.4°C, and the coldest is January, with lows averaging -7.0°C.

What is the warmest month in Bloomington?

July is the warmest month in Bloomington, with typical daytime highs of 30.4°C.

What is the hottest year on record for Bloomington?

2011 is the hottest year on record for Bloomington, running +2.5°C above the 1951 to 1980 baseline.

Is Bloomington getting hotter?

Yes. Since 1900, Bloomington has warmed by roughly +1.9°C.

When is the best time to visit Bloomington?

April to October typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.