Ionia County, MI Climate

Ionia County is located in Michigan’s Lower Peninsula and experiences a humid continental climate. Summers are warm and humid, with temperatures reaching into the 80s, while winters are cold and snowy, with temperatures rarely rising above freezing. Rainfall is relatively evenly distributed throughout the year, though some months may be wetter or drier than others. Spring and fall bring moderate temperatures and light precipitation. The county experiences four distinct seasons, making it a great destination for those who enjoy all types of weather.

Ionia County, Michigan gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Ionia County averages 54 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 167 sunny days per year in Ionia County. The US average is 205 sunny days.

Ionia County gets some kind of precipitation, on average, 124 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 82 degrees
Winter Low: the January low is 15
Rain: averages 35 inches of rain a year
Snow: averages 54 inches of snow a year

Bestplaces Comfort Index

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

9.3 Summer - 4 Winter

August, July and June are the most pleasant months in Ionia County, while January and December are the least comfortable months.

Climate	Ionia, Michigan	United States
	Unlock	38.1 in.
	54.2 in.	Unlock
	Unlock	106.2 days
	167 days	Unlock
	82.2°	85.8°
	Unlock	21.7°
	6.6	Unlock
	Unlock	4.3
	800 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Ionia County with an average high temperature of 82.2°, which ranks it as warmer than most places in Michigan. In Ionia County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ionia County are June, August and July.

In Ionia County, there are 7.4 days annually when the high temperature is over 90°, which is hotter than most places in Michigan.

January has the coldest nighttime temperatures for Ionia County with an average of 15.4°. This is about average compared to other places in Michigan.

In Ionia County, there are 144.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Michigan.

In Ionia County, there are 7.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Michigan.

Humidity in Ionia County is generally low and comfortable. But there some days when the humidity becomes unpleasant, especially in July and August. The most humid months (but still comfortable) are July, August and June.

September is the wettest month in Ionia County with 3.7 inches of rain, and the driest month is February with 1.7 inches. The wettest season is Autumn with 29% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 34.9 inches in Ionia County means that it is wetter than most places in Michigan.

December is the rainiest month in Ionia County with 12.1 days of rain, and February is the driest month with only 9.2 rainy days. There are 123.8 rainy days annually in Ionia County, which is less rainy than most places in Michigan. The rainiest season is Spring when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 54.2 inches in Ionia County means that it is about average compared to other places in Michigan. January is the snowiest month in Ionia County with 16.1 inches of snow, and 6 months of the year have significant snowfall.

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