Cost to Own
United States › Idaho › Butte County › Climate Station ARCO, ID US Distance 7 mi Normals 1991 to 2020
This weather has a price Keeping the median Butte County home comfortable runs roughly $450 a year in heating and cooling alone. See where it lands in the monthly bill

30-year climate normals

Butte County Climate and Weather Averages

Hottest month: July

86.6°

average daily high. The coldest month is January, averaging a low of 7.0°F.

Butte County gets 8.8" of precipitation a year and 23.8" of snow, and 36% 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 30.3° 7.0° 0.67" 7.0"
February 34.7° 11.7° 0.62" 4.6"
March 45.9° 22.8° 0.68" 1.1"
April 57.2° 30.4° 0.86" 1.3"
May 67.0° 38.6° 1.20" 0.2"
June 76.4° 45.7° 1.13" 0.0"
July 86.6° 51.6° 0.32" 0.0"
August 84.8° 49.5° 0.54" 0.0"
September 74.9° 41.0° 0.66" 0.0"
October 59.5° 30.5° 0.71" 0.3"
November 42.6° 19.1° 0.55" 1.2"
December 31.2° 9.3° 0.86" 8.1"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 36% falling in the wettest three months (Apr, May, Jun).

January 0.67"
February 0.62"
March 0.68"
April 0.86"
May 1.20"
June 1.13"
July 0.32"
August 0.54"
September 0.66"
October 0.71"
November 0.55"
December 0.86"
Annual total 8.8"

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 313
Heating degree days How much heating the climate demands 8,053
Approximate annual cooling cost At 14.37¢/kWh, Idaho average $45
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 Butte County, where electricity is one line of eight.

Common questions

What is the weather like in Butte County?

Butte County averages a high of 86.6°F in July and a low of 7.0°F in January. Annual precipitation is 8.8 inches, including 23.8 inches of snow.

When is the rainy season in Butte County?

The wettest stretch is Apr, May, Jun, which accounts for 36% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Butte County?

The average daily high in July, the hottest month, is 86.6°F. That drives 313 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Butte County?

Yes. Butte County averages 23.8 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals: NOAA National Centers for Environmental Information, 1991 to 2020 Monthly Climate Normals, station ARCO, ID US (USC00100375), 7 miles from the county centroid.
  • Heating and cooling degree days: NOAA, same station and period.
  • Annual figures on this page are the sum of that station's twelve monthly normals. NOAA also publishes a separately-computed annual normal, which can differ from the monthly sum by a few percent; we use the monthly series because the month-by-month breakdown above has to come from it.
  • Electricity price: US Energy Information Administration, Electric Power Monthly Table 5.6.A, Idaho residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.