2025 Compare Climate & Weather:
South Haven, MI vs Allegan, MI

Highlights

On average, there are 164 sunny days per year in Allegan. South Haven averages 169 sunny days per year. The US average is 205 sunny days.

Allegan, Michigan gets 39.3 inches of rain, on average, per year. South Haven, Michigan gets 37.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Allegan averages 82.8 inches of snow per year. South Haven averages 84.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Allegan, Michigan
Summer High: the July high is around 82.1 degrees
Winter Low: the January low is 16.5
Rain: averages 39.3 inches of rain a year
Snow: averages 82.8 inches of snow a year

South Haven, Michigan
Summer High: the July high is around 81.7 degrees
Winter Low: the January low is 18.9
Rain: averages 37.7 inches of rain a year
Snow: averages 84.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Allegan is 6.6 (10=best), which means it is about average compared to other places in Michigan.

The annual BestPlaces Comfort Index for South Haven is 6.7 (10=best), which means it is more comfortable than most places in Michigan.

Today's Weather - South Haven, MI

54°F

Today's Weather - Allegan, MI

60°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: South Haven / Allegan

July is the hottest month for South Haven with an average high temperature of 81.7°, which ranks it as about average compared to other places in Michigan. In South Haven, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for South Haven are June, August and July.

July is the hottest month for Allegan with an average high temperature of 82.1°, which ranks it as about average compared to other places in Michigan. In Allegan, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Allegan are June, August and July.

January has the coldest nighttime temperatures for South Haven with an average of 18.9°. This is one of the warmest places in Michigan.

January has the coldest nighttime temperatures for Allegan with an average of 16.5°. This is warmer than most places in Michigan.

In South Haven, there are 7.8 days annually when the high temperature is over 90°, which is hotter than most places in Michigan.

In Allegan, there are 7.3 days annually when the high temperature is over 90°, which is hotter than most places in Michigan.

In South Haven, there are 125.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Michigan.

In Allegan, there are 142.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Michigan.

In South Haven, there are 3.4 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

In Allegan, there are 6.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Michigan.

September is the wettest month in South Haven with 4.0 inches of rain, and the driest month is February with 1.9 inches. The wettest season is Winter with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 37.7 inches in South Haven means that it is one of the wettest places in Michigan.


September is the wettest month in Allegan with 4.0 inches of rain, and the driest month is February with 2.1 inches. The wettest season is Winter with 28% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 39.3 inches in Allegan means that it is one of the wettest places in Michigan.

December is the rainiest month in South Haven with 13.9 days of rain, and July is the driest month with only 8.4 rainy days. There are 127.9 rainy days annually in South Haven, which is about average compared to other places in Michigan. The rainiest season is Spring when it rains 29% of the time and the driest is Autumn with only a 21% chance of a rainy day.

December is the rainiest month in Allegan with 14.4 days of rain, and July is the driest month with only 8.5 rainy days. There are 130.7 rainy days annually in Allegan, which is about average compared to other places in Michigan. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 20% chance of a rainy day.

An annual snowfall of 84.4 inches in South Haven means that it is snowier than most places in Michigan.

An annual snowfall of 82.8 inches in Allegan means that it is snowier than most places in Michigan.

January is the snowiest month in South Haven with 28.6 inches of snow, and 7 months of the year have significant snowfall.

January is the snowiest month in Allegan with 27.1 inches of snow, and 6 months of the year have significant snowfall.