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United States › Michigan › Mason County › Climate Station MANISTEE 3SE, MI US Distance 19.1 mi Normals 1991–2020

30-year climate normals

Mason County Climate and Weather Averages

Hottest month — July

79.7°

average daily high. The coldest month is January, averaging a low of 18.6°F.

Mason County gets 36.34" of precipitation a year, and 29% of it falls in Aug, Sep, Oct.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

20° 40° 60° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 30.2° 18.6° 2.20"
February 32.5° 19.2° 1.59"
March 42.1° 25.3° 2.22"
April 54.8° 34.7° 3.44"
May 67.1° 44.8° 3.29"
June 76.1° 54.0° 3.76"
July 79.7° 59.1° 3.29"
August 78.1° 58.7° 3.32"
September 72.0° 52.4° 3.26"
October 59.1° 42.2° 4.12"
November 46.1° 33.0° 3.17"
December 35.1° 24.4° 2.68"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 29% falling in the wettest three months (Aug, Sep, Oct).

January 2.20"
February 1.59"
March 2.22"
April 3.44"
May 3.29"
June 3.76"
July 3.29"
August 3.32"
September 3.26"
October 4.12"
November 3.17"
December 2.68"
Annual total 36.34"

What this climate costs you

Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.

Cooling degree days How much air conditioning the climate demands 493
Heating degree days How much heating the climate demands 6,848
Approximate annual cooling cost At 22.01¢/kWh, Michigan average $109
Approximate annual electric heating cost Lower where heating is gas rather than electric $528

These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in Mason County, where electricity is one line of eight.

Common questions

What is the weather like in Mason County?

Mason County averages a high of 79.7°F in July and a low of 18.6°F in January. Annual precipitation is 36.34 inches, with essentially no snow.

When is the rainy season in Mason County?

The wettest stretch is Aug, Sep, Oct, which accounts for 29% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Mason County?

The average daily high in July, the hottest month, is 79.7°F. That drives 493 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Mason County?

Effectively no. Measurable snowfall is rare in Mason County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station MANISTEE 3SE, MI US (USC00205065), 19.1 miles from the county centroid.
  • Heating and cooling degree days — NOAA, same station and period.
  • Electricity price — US Energy Information Administration, Electric Power Monthly Table 5.6.A, Michigan residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.