Keweenaw County, MI Climate

Keweenaw, MI County experiences a continental climate, with four distinct seasons that bring a variety of weather. Summers are warm and sunny, while winters can be cold and snowy. The temperatures in Keweenaw are moderated by the surrounding waters of Lake Superior, meaning the area has milder temperatures than other areas located farther inland. Precipitation is plentiful throughout the year, with an average of around 30 inches per year. Snowfall can vary greatly from season to season but averages out to about 100 inches per year.

Keweenaw County, Michigan gets 30 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Keweenaw County averages 208 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 186 sunny days per year in Keweenaw County. The US average is 205 sunny days.

Keweenaw County gets some kind of precipitation, on average, 152 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 74 degrees
Winter Low: the January low is 10
Rain: averages 30 inches of rain a year
Snow: averages 208 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Keweenaw County is 5.4 (10=best), which means it is one of the least comfortable places in Michigan.

9.1 Summer - 2 Winter

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

Climate	Keweenaw, Michigan	United States
	29.9 in.	38.1 in.
	207.5 in.	27.8 in.
	152.3 days	106.2 days
	186 days	205 days
	73.9°	85.8°
	9.7°	21.7°
	5.4	7
	3.2	4.3
	843 ft.	2443 ft.

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 Keweenaw County with an average high temperature of 73.9°, which ranks it as one of the coolest places in Michigan. In Keweenaw County, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Keweenaw County are July, August and June.

In Keweenaw County, there are 1.0 days annually when the high temperature is over 90°, which is one of the coolest places in Michigan.

January has the coldest nighttime temperatures for Keweenaw County with an average of 9.7°. This is colder than most places in Michigan.

In Keweenaw County, there are 170.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Michigan.

In Keweenaw County, there are 15.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Michigan.

Humidity in Keweenaw 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 August, July and September.

September is the wettest month in Keweenaw County with 3.5 inches of rain, and the driest month is February with 1.3 inches. The wettest season is Winter with 29% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 29.9 inches in Keweenaw County means that it is one of the driest places in Michigan.

January is the rainiest month in Keweenaw County with 17.5 days of rain, and August is the driest month with only 9.5 rainy days. There are 152.3 rainy days annually in Keweenaw County, which is one of the rainiest 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 207.5 inches in Keweenaw County means that it is one of the snowiest places in Michigan. January is the snowiest month in Keweenaw County with 67.1 inches of snow, and 8 months of the year have significant snowfall.

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