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Allegan (MI) Weather and Climate: A Comprehensive Guide

The climate in Allegan is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to very cold in the cooler months. It is also known for its large amounts of rain/snowfall. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

In Allegan, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 28°C in July to a very cold -1°C in the coolest month, February.

Nights are cooler, with lows often dropping to around -9°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Allegan experiences significant rain/snowfall throughout the year, averaging 1100 mm of precipitation annually. Allegan offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between June (118 mm) and March (66 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

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

Data from: Grand Rapids, the United States of America (50 KM, 31 Miles).

Daily hours of sunshine

Data from: Grand Rapids, the United States of America (50 KM, 31 Miles).

Forecast for Allegan (MI)

Sat   Dec 21
-3°C | -8°C
N 2 m/s
overcast and no rain

overcast and no rain

Sun   Dec 22
-1°C | -8°C
S 4 m/s
broken clouds and no rain

broken clouds and no rain

Mon   Dec 23
3°C | -3°C
SW 6 m/s
1.6 mm
overcast and sleet

overcast and sleet

The best time of year to visit Allegan in the United States of America

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is winter in Allegan?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Allegan?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Allegan?
    The coldest month is February with an average maximum temperature of -1°C.
  • Which is the wettest month in Allegan?
    June tops the wettest month list with 118 mm of rainfall.
  • Which is the driest month in Allegan?
    March is the driest month with 66 mm of precipitation.
  • Which is the sunniest month in Allegan?
    July is the sunniest month with an average of 298 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.