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United States › Indiana › DeKalb County › Climate Station GARRETT 1 S, IN US Distance 7.4 mi Normals 1991–2020

30-year climate normals

DeKalb County Climate and Weather Averages

Hottest month — July

80.8°

average daily high. The coldest month is January, averaging a low of 16.5°F.

DeKalb County gets 39.52" of precipitation a year and 36" of snow, and 32% of it falls in Apr, May, Jun.

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 30.2° 16.5° 2.52" 10.6"
February 34.2° 18.6° 2.28" 9.7"
March 45.8° 26.9° 2.68" 4.8"
April 59.2° 36.7° 4.02" 1.2"
May 69.8° 47.7° 4.73" 0.0"
June 77.5° 57.3° 3.95" 0.0"
July 80.8° 60.3° 3.52" 0.0"
August 78.8° 58.4° 3.90" 0.0"
September 73.4° 51.2° 3.22" 0.0"
October 61.2° 40.8° 3.01" 0.1"
November 46.8° 30.8° 3.10" 2.5"
December 34.6° 21.9° 2.59" 7.1"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 32% falling in the wettest three months (Apr, May, Jun).

January 2.52"
February 2.28"
March 2.68"
April 4.02"
May 4.73"
June 3.95"
July 3.52"
August 3.90"
September 3.22"
October 3.01"
November 3.10"
December 2.59"
Annual total 39.52"

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 541
Heating degree days How much heating the climate demands 6,590
Approximate annual cooling cost At 18.15¢/kWh, Indiana average $98
Approximate annual electric heating cost Lower where heating is gas rather than electric $419

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 DeKalb County, where electricity is one line of eight.

Common questions

What is the weather like in DeKalb County?

DeKalb County averages a high of 80.8°F in July and a low of 16.5°F in January. Annual precipitation is 39.52 inches, including 36 inches of snow.

When is the rainy season in DeKalb County?

The wettest stretch is Apr, May, Jun, which accounts for 32% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in DeKalb County?

The average daily high in July, the hottest month, is 80.8°F. That drives 541 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in DeKalb County?

Yes. DeKalb County averages 36 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station GARRETT 1 S, IN US (USC00123207), 7.4 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.