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United States › Indiana › St. Joseph County › Climate Station SOUTH BEND MICHIANA RGNL AP, IN US Distance 6.4 mi Normals 1991–2020

30-year climate normals

St. Joseph County Climate and Weather Averages

Hottest month — July

82.7°

average daily high. The coldest month is January, averaging a low of 17.0°F.

St. Joseph County gets 39.23" of precipitation a year and 64.5" of snow, and 31% of it falls in May, Jun, Jul.

Temperature through the year

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

20° 40° 60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low PrecipSnow
January 31.2° 17.0° 2.66" 21.6"
February 34.9° 19.3° 2.31" 16.1"
March 46.2° 27.2° 2.35" 6.8"
April 59.0° 37.1° 3.49" 1.0"
May 70.1° 48.1° 4.20" 0.0"
June 79.4° 58.1° 4.04" 0.0"
July 82.7° 62.1° 3.78" 0.0"
August 80.8° 60.5° 4.01" 0.0"
September 74.4° 53.0° 3.49" 0.0"
October 61.8° 42.1° 3.72" 0.2"
November 47.7° 31.8° 2.78" 5.1"
December 36.3° 23.0° 2.40" 13.7"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 31% falling in the wettest three months (May, Jun, Jul).

January 2.66"
February 2.31"
March 2.35"
April 3.49"
May 4.20"
June 4.04"
July 3.78"
August 4.01"
September 3.49"
October 3.72"
November 2.78"
December 2.40"
Annual total 39.23"

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 722
Heating degree days How much heating the climate demands 6,400
Approximate annual cooling cost At 18.15¢/kWh, Indiana average $131
Approximate annual electric heating cost Lower where heating is gas rather than electric $407

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 St. Joseph County, where electricity is one line of eight.

Common questions

What is the weather like in St. Joseph County?

St. Joseph County averages a high of 82.7°F in July and a low of 17.0°F in January. Annual precipitation is 39.23 inches, including 64.5 inches of snow.

When is the rainy season in St. Joseph County?

The wettest stretch is May, Jun, Jul, which accounts for 31% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in St. Joseph County?

The average daily high in July, the hottest month, is 82.7°F. That drives 722 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in St. Joseph County?

Yes. St. Joseph County averages 64.5 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SOUTH BEND MICHIANA RGNL AP, IN US (USW00014848), 6.4 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, Indiana residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.