Bloomingdale (IL) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bloomingdale.
Climate overview of Bloomingdale
Temperatures in Bloomingdale, Illinois, United States of America, vary greatly throughout the year. July is the hottest month at 29°C (84°F), while January is the coldest at -1°C (30°F).
The city receives considerable rain/snowfall, with around 1035 mm (41 in) annually. June is the wettest month. It has warm summers and very cold winters. July is the sunniest month, averaging 10.6 hours of sunshine per day.
Bloomingdale Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bloomingdale - and find the best time to visit.
Monthly Temperature in Bloomingdale
The climate in Bloomingdale is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 29°C (84°F) in July to a very cold -1°C (30°F) in the coolest month, January.
Nights vary from 17°C (63°F) in July to around -10°C (14°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Bloomingdale
Bloomingdale has a notably wet climate with abundant precipitation, recording 1035 mm (41 in) of rain/snowfall per year. The climate in Bloomingdale shows significant variation throughout the year. Expect high rainfall in June, the wettest month, with an average of 120 mm (4.7 in) of precipitation over 14 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 49 mm (1.9 in) of snowfall over 10 snowy days. For more details, please visit our Bloomingdale Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Bloomingdale
For those who appreciate different seasons, Bloomingdale serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.6 hours of sunshine daily, and embrace the darker days in December, offering only 3.6 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Bloomingdale by Month
The relative humidity is high throughout the year in Bloomingdale.
The city experiences its highest humidity in December, reaching 76%. In May, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Bloomingdale
The mean wind speed varies between 4 m/s (8 knots) and 6 m/s (12 knots) throughout the year. It is lowest in June, July, August and September and highest during January, March and April. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Bloomingdale
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: June and July
- Fewest rainy days: February, September and November
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -10°C (14°F).
Frequently asked questions about the climate in Bloomingdale
What is the best time to visit Bloomingdale?
September typically offers the most optimal weather in Bloomingdale. In contrast, January, February, March, November and December tend to have less optimal conditions. Bloomingdale has warm summers and very cold winters.
What temperatures can I expect in Bloomingdale?
Daytime highs range from -1°C (30°F) in January to 29°C (84°F) in July. Nighttime lows range from -10°C (14°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Bloomingdale get?
Annual rainfall is around 1035 mm (41 in). June is the wettest month with 120 mm (4.7 in), while January is the driest with 49 mm (1.9 in).
How sunny is Bloomingdale?
Bloomingdale receives around 2,509 hours of sunshine per year. July is the sunniest month with 319 hours, while December is the cloudiest with just 107 hours. Overall, Bloomingdale enjoys abundant sunshine.
Bloomingdale 3-Day Forecast
Bloomingdale on the map
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