Allegan (MI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Allegan.
Climate overview of Allegan
The climate in Allegan, Michigan, United States of America, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in July to -1°C (30°F) in February.
The city receives considerable rain/snowfall, with around 1100 mm (43 in) annually. June is the wettest month. It has warm summers and very cold winters. July is the sunniest month, averaging 9.9 hours of sunshine per day.
Allegan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Allegan - and find the best time to visit.
Monthly Temperature in Allegan
In Allegan, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in July to a very cold -1°C (30°F) in the coolest month, February.
Nights vary from 15°C (59°F) in July to around -9°C (16°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Allegan
Allegan experiences significant rain/snowfall throughout the year, averaging 1100 mm (43 in) of precipitation annually. Allegan offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (118 mm (4.6 in)) and the driest month March (66 mm (2.6 in)) is not too significant. For more details, please visit our Allegan 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 Allegan
For those who appreciate different seasons, Allegan serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.9 hours of sunshine daily, and embrace the darker days in December, offering only 2.1 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 Allegan by Month
The relative humidity is high throughout the year in Allegan.
The city experiences its highest humidity in December, reaching 79%. In May, the humidity drops to its lowest level at 65%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Allegan
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July, August and September
- Warmest weather: July and August
- Most sunshine: June and July
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: February, with freezing nights around -9°C (16°F).
Frequently asked questions about the climate in Allegan
What is the best time to visit Allegan?
July, August and September typically offer the most optimal weather in Allegan. In contrast, January, February, March, November and December tend to have less optimal conditions. Allegan has warm summers and very cold winters.
What temperatures can I expect in Allegan?
Daytime highs range from -1°C (30°F) in February to 28°C (82°F) in July. Nighttime lows range from -9°C (16°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Allegan get?
Annual rainfall is around 1100 mm (43 in). June is the wettest month with 118 mm (4.6 in), while March is the driest with 66 mm (2.6 in).
How sunny is Allegan?
Allegan receives around 2,208 hours of sunshine per year. July is the sunniest month with 298 hours, while December is the cloudiest with just 63 hours. Overall, Allegan enjoys abundant sunshine.
Allegan 3-Day Forecast
Allegan (MI) 3-Day Forecast
Allegan on the map
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