Riley township (St. Clair County), MI Climate


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United States / Michigan / Detroit-Warren-Dearborn Metro Area / St. Clair County / Riley township (St. Clair County) / Zip Codes
Riley Township, located in St. Clair County in Michigan, has a humid continental climate. The summers are hot and often humid, with temperatures reaching into the 80s and 90s Fahrenheit on many days. Winters are typically cold and snowy, with temperatures regularly dropping below freezing. Rainfall is evenly distributed throughout the year and snowfall averages around 40 inches annually. Spring and fall tend to be pleasant with milder temperatures than the other two seasons. Overall, Riley Township's climate provides four distinct seasons for its residents to enjoy.

Riley township (St. Clair County), Michigan gets 33 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Riley township (St. Clair County) averages 37 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 177 sunny days per year in Riley township (St. Clair County). The US average is 205 sunny days.

Riley township (St. Clair County) gets some kind of precipitation, on average, 127 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 37 inches of snow a year

Bestplaces Comfort Index

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

9.2 Summer - 4.2 Winter
July, August and June are the most pleasant months in Riley township (St. Clair County), while January and February are the least comfortable months.

  ClimateRiley township (St. Clair County), MichiganUnited States
  33.4 in.38.1 in.
  36.6 in.27.8 in.
  126.6 days106.2 days
  177 days205 days
  81.8°85.8°
  14.1°21.7°
  6.67
  3.54.3
  766 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 Riley township (St. Clair County) with an average high temperature of 81.8°, which ranks it as about average compared to other places in Michigan. In Riley township (St. Clair County), there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Riley township (St. Clair County) are June, August and July.
In Riley township (St. Clair County), there are 5.0 days annually when the high temperature is over 90°, which is about average compared to other places in Michigan.
January has the coldest nighttime temperatures for Riley township (St. Clair County) with an average of 14.1°. This is colder than most places in Michigan.
In Riley township (St. Clair County), there are 150.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Michigan.
In Riley township (St. Clair County), there are 6.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Michigan.
Humidity in Riley township (St. Clair 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 Riley township (St. Clair County) with 3.9 inches of rain, and the driest month is February with 1.7 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 33.4 inches in Riley township (St. Clair County) means that it is about average compared to other places in Michigan.
December is the rainiest month in Riley township (St. Clair County) with 12.1 days of rain, and July is the driest month with only 9.4 rainy days. There are 126.6 rainy days annually in Riley township (St. Clair County), which is about average compared to other 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 36.6 inches in Riley township (St. Clair County) means that it is less snowy than most places in Michigan. January is the snowiest month in Riley township (St. Clair County) with 11.1 inches of snow, and 6 months of the year have significant snowfall.
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