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United States › Illinois › White County › Climate Station CARMI 3, IL US Distance 1 mi Normals 1991–2020

30-year climate normals

White County Climate and Weather Averages

Hottest month — July

87.6°

average daily high. The coldest month is January, averaging a low of 21.2°F.

White County gets 48.32" of precipitation a year and 11.7" of snow, and 30% of it falls in Mar, Apr, May.

Temperature through the year

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

40° 60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low PrecipSnow
January 41.1° 21.2° 3.50" 2.5"
February 46.0° 23.4° 3.11" 4.9"
March 56.1° 32.5° 4.37" 1.8"
April 68.0° 43.0° 5.17" 0.0"
May 76.8° 53.5° 5.16" 0.0"
June 85.3° 62.5° 4.31" 0.0"
July 87.6° 65.7° 4.43" 0.0"
August 86.8° 63.0° 3.50" 0.0"
September 81.4° 54.8° 3.22" 0.0"
October 70.1° 42.8° 3.43" 0.2"
November 56.2° 32.1° 4.22" 0.2"
December 45.0° 25.0° 3.90" 2.1"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 30% falling in the wettest three months (Mar, Apr, May).

January 3.50"
February 3.11"
March 4.37"
April 5.17"
May 5.16"
June 4.31"
July 4.43"
August 3.50"
September 3.22"
October 3.43"
November 4.22"
December 3.90"
Annual total 48.32"

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 1,245
Heating degree days How much heating the climate demands 4,857
Approximate annual cooling cost At 23.85¢/kWh, Illinois average $297
Approximate annual electric heating cost Lower where heating is gas rather than electric $405

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 White County, where electricity is one line of eight.

Common questions

What is the weather like in White County?

White County averages a high of 87.6°F in July and a low of 21.2°F in January. Annual precipitation is 48.32 inches, including 11.7 inches of snow.

When is the rainy season in White County?

The wettest stretch is Mar, Apr, May, which accounts for 30% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in White County?

The average daily high in July, the hottest month, is 87.6°F. That drives 1,245 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in White County?

Yes. White County averages 11.7 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station CARMI 3, IL US (USC00111302), 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, Illinois residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.