Sumner, MI Climate


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Sumner, MI has a humid continental climate with warm summers and cold, snowy winters. The average temperature in the summer is 77°F (25°C), while the average temperature in the winter is 26°F (-3°C). Precipitation is fairly evenly distributed throughout the year, with slightly more occurring during the summer months than the winter. Sumner generally experiences hot days during the summer months and cold nights during the winter, with occasional snowfall throughout the season.

Sumner, Michigan gets 33 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Sumner averages 46 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 174 sunny days per year in Sumner. The US average is 205 sunny days.

Sumner gets some kind of precipitation, on average, 109 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 14
Rain: averages 33 inches of rain a year
Snow: averages 46 inches of snow a year


Bestplaces Comfort Index

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

9.3 Summer - 4.2 Winter
August, July and June are the most pleasant months in Sumner, while January and February are the least comfortable months.

  ClimateSumner, MichiganUnited States
  32.9 in.38.1 in.
  45.8 in.27.8 in.
  109.3 days106.2 days
  174 days205 days
  82.3°85.8°
  14.3°21.7°
  6.77
  3.34.3
  761 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 Sumner with an average high temperature of 82.3°, which ranks it as warmer than most places in Michigan. In Sumner, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sumner are June, August and July.
In Sumner, there are 8.1 days annually when the high temperature is over 90°, which is hotter than most places in Michigan.
January has the coldest nighttime temperatures for Sumner with an average of 14.3°. This is colder than most places in Michigan.
In Sumner, there are 151.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Michigan.
In Sumner, there are 7.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Michigan.
Humidity in Sumner 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.
August is the wettest month in Sumner with 3.4 inches of rain, and the driest month is February with 1.5 inches. The wettest season is Autumn with 29% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 32.9 inches in Sumner means that it is drier than most places in Michigan.
April is the rainiest month in Sumner with 10.4 days of rain, and February is the driest month with only 7.2 rainy days. There are 109.3 rainy days annually in Sumner, which is one of the least rainy places in Michigan. The rainiest season is Winter when it rains 27% of the time and the driest is Spring with only a 23% chance of a rainy day.
An annual snowfall of 45.8 inches in Sumner means that it is about average compared to other places in Michigan. January is the snowiest month in Sumner with 14.1 inches of snow, and 6 months of the year have significant snowfall.
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