Ontonagon County, MI Climate


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United States / Michigan / No Metro Area / Ontonagon County / Cities / Zip Codes
Ontonagon, MI County has a humid continental climate with hot summers and cold winters. During the summer months, temperatures average in the low 80s, while in winter, temperatures can drop to below 0°F. Precipitation is fairly evenly distributed throughout the year with most of it falling as snow in winter. Winters tend to be long and cold with heavy snowfall due to the lake effect from Lake Superior. Summers are usually warm and sunny with occasional thunderstorms.

Ontonagon County, Michigan gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Ontonagon County averages 180 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 185 sunny days per year in Ontonagon County. The US average is 205 sunny days.

Ontonagon County gets some kind of precipitation, on average, 155 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 77 degrees
Winter Low: the January low is 4
Rain: averages 36 inches of rain a year
Snow: averages 180 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Ontonagon County is 5.5 (10=best), which means it is one of the least comfortable places in Michigan.

9 Summer - 1.9 Winter
July, August and June are the most pleasant months in Ontonagon County, while January and December are the least comfortable months.

  ClimateOntonagon, MichiganUnited States
  35.9 in.38.1 in.
  180.3 in.27.8 in.
  155.4 days106.2 days
  185 days205 days
  77.3°85.8°
  3.9°21.7°
  5.57
  3.14.3
  1123 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 Ontonagon County with an average high temperature of 77.3°, which ranks it as one of the coolest places in Michigan. In Ontonagon County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ontonagon County are July, August and June.
In Ontonagon County, there are 2.2 days annually when the high temperature is over 90°, which is cooler than most places in Michigan.
January has the coldest nighttime temperatures for Ontonagon County with an average of 3.9°. This is one of the coldest places in Michigan.
In Ontonagon County, there are 190.7 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Michigan.
In Ontonagon County, there are 35.0 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Michigan.
Humidity in Ontonagon 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 Ontonagon County with 3.8 inches of rain, and the driest month is February with 1.7 inches. The wettest season is Autumn with 29% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 35.9 inches in Ontonagon County means that it is wetter than most places in Michigan.
January is the rainiest month in Ontonagon County with 18.1 days of rain, and August is the driest month with only 9.8 rainy days. There are 155.4 rainy days annually in Ontonagon County, which is one of the rainiest places in Michigan. The rainiest season is Spring when it rains 31% of the time and the driest is Autumn with only a 20% chance of a rainy day.
An annual snowfall of 180.3 inches in Ontonagon County means that it is one of the snowiest places in Michigan. January is the snowiest month in Ontonagon County with 47.8 inches of snow, and 8 months of the year have significant snowfall.
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