Weatheo

Bloomington Weather by Month

Average temperatures, rainfall and humidity for Bloomington, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Bloomington month looks like before you travel — then check the live Bloomington forecast for the days ahead.

Warmest month

July

29°C average high

Coolest month

January

-5°C average low

Wettest month

April

81 mm of rain

Driest month

February

42 mm of rain

Average temperature and rainfall in Bloomington by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January3°C-5°C-25°C / 19°C
44 mm
78%16 km/h
February6°C-4°C-28°C / 24°C
42 mm
75%16 km/h
March12°C2°C-22°C / 30°C
74 mm
69%17 km/h
April18°C7°C-5°C / 29°C
81 mm
67%17 km/h
May24°C13°C-2°C / 35°C
76 mm
69%14 km/h
June28°C18°C6°C / 37°C
80 mm
70%12 km/h
July29°C19°C10°C / 39°C
61 mm
74%11 km/h
August28°C18°C9°C / 36°C
65 mm
74%11 km/h
September26°C15°C4°C / 36°C
56 mm
73%11 km/h
October19°C9°C-4°C / 32°C
74 mm
73%14 km/h
November11°C2°C-15°C / 26°C
43 mm
73%15 km/h
December6°C-1°C-23°C / 21°C
57 mm
79%15 km/h

Best time to visit Bloomington

The most comfortable time to visit Bloomington is generally May and August to September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around April, totalling about 753 mm a year.

Travellers who prefer heat should aim for July, when highs average 29°C. April is the month to avoid if rain would spoil your plans — it averages 81 mm, roughly 2× the rainfall of the driest month (February).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Bloomington forecast for what is happening now.

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