Sanilac County, MI Climate

Sanilac County, Michigan has a humid continental climate, characterized by cold winters and warm summers. During the winter months, temperatures can dip to below freezing and snowfall is common. The summer months have daytime temperatures that hover around the mid 70s with occasional higher temperatures. The county receives an average annual precipitation of 31 inches, which falls mainly during the spring and summer months. Winters are generally dry with little precipitation. Overall, Sanilac County has a mild climate, perfect for enjoying the outdoors year-round.

Sanilac County, Michigan gets 32 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Sanilac County averages 41 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 173 sunny days per year in Sanilac County. The US average is 205 sunny days.

Sanilac County gets some kind of precipitation, on average, 119 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 80 degrees
Winter Low: the January low is 15
Rain: averages 32 inches of rain a year
Snow: averages 41 inches of snow a year

Bestplaces Comfort Index

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

9.3 Summer - 4.1 Winter

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

Climate	Sanilac, Michigan	United States
	Unlock	38.1 in.
	40.9 in.	Unlock
	Unlock	106.2 days
	173 days	Unlock
	80.2°	85.8°
	Unlock	21.7°
	6.6	Unlock
	Unlock	4.3
	766 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 Sanilac County with an average high temperature of 80.2°, which ranks it as cooler than most places in Michigan. In Sanilac County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sanilac County are August, June and July.

In Sanilac County, there are 4.0 days annually when the high temperature is over 90°, which is cooler than most places in Michigan.

January has the coldest nighttime temperatures for Sanilac County with an average of 14.5°. This is colder than most places in Michigan.

In Sanilac County, there are 148.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Michigan.

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

Humidity in Sanilac County is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.

September is the wettest month in Sanilac County with 3.9 inches of rain, and the driest month is February with 1.6 inches. The wettest season is Autumn with 30% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 32.3 inches in Sanilac County means that it is drier than most places in Michigan.

December is the rainiest month in Sanilac County with 11.2 days of rain, and February is the driest month with only 8.4 rainy days. There are 119.2 rainy days annually in Sanilac County, which is less rainy than most places in Michigan. The rainiest season is Winter when it rains 26% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 40.9 inches in Sanilac County means that it is less snowy than most places in Michigan. January is the snowiest month in Sanilac County with 12.4 inches of snow, and 6 months of the year have significant snowfall.

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