Climate Insights for Bloomington

The climate in Bloomington is warm and mild. The average annual temperature is 22°C and approximately 942mm of precipitation falls per year. Bloomington receives a notable amount of rainfall throughout the year, including during its driest month. Bloomington is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Agosto, Luglio, Giugno. The coldest months are Gennaio, Febbraio, Dicembre, when temperatures can drop to 10°C.

Temperatures in Bloomington vary considerably across the year, with a 23°C difference between the coldest and warmest months. The warmest month is Agosto, when average highs reach 33°C and the mean temperature sits around 29°C. Gennaio is the coolest month, with minimum temperatures around 10°C and an average of 14°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Bloomington is a moderately rainy area, receiving approximately 942mm of precipitation annually, which averages out to around 78mm per month. The wettest month is June, averaging 112mm of rainfall. May and September also tend to see above-average precipitation. The driest month is February, with just 37mm. That's 76mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Bloomington is moderately windy, with an average annual wind speed of 21km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 24km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 6km/h between the calmest and windiest months.

It is currently winter in Bloomington, which began on December 21, 2026. Bloomington is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Agosto at around 33°C, while the coldest stretch bottoms out in Gennaio near 10°C. Spring is next, beginning on March 20, 2026 — 1 days from now.

The best time to visit Bloomington is during Febbraio, Marzo, Aprile, Ottobre, Novembre and Dicembre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 61mm per month. By contrast, Agosto can be uncomfortably hot with highs reaching 33°C, while Gennaio is the coldest period with lows dropping to 10°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Bloomington based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.