Cost to Own
United States › South Dakota › Douglas County › Climate Station ARMOUR, SD US Distance 5.4 mi Normals 1991 to 2020
This weather has a price Keeping the median Douglas County home comfortable runs roughly $505 a year in heating and cooling alone. See where it lands in the monthly bill

30-year climate normals

Douglas County Climate and Weather Averages

Hottest month: July

88.0°

average daily high. The coldest month is January, averaging a low of 10.0°F.

Douglas County gets 25.42" of precipitation a year and 34.4" of snow, and 43% 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 31.8° 10.0° 0.55" 6.1"
February 37.1° 14.3° 0.86" 5.5"
March 49.6° 24.3° 1.24" 6.3"
April 62.3° 35.2° 3.26" 4.1"
May 72.8° 46.4° 4.03" 0.0"
June 82.4° 57.7° 3.74" 0.0"
July 88.0° 62.1° 2.67" 0.0"
August 86.3° 60.2° 2.84" 0.0"
September 79.2° 51.5° 2.42" 0.0"
October 64.3° 37.8° 2.07" 1.2"
November 47.7° 24.5° 1.02" 6.1"
December 34.6° 14.4° 0.72" 5.1"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 43% falling in the wettest three months (Apr, May, Jun).

January 0.55"
February 0.86"
March 1.24"
April 3.26"
May 4.03"
June 3.74"
July 2.67"
August 2.84"
September 2.42"
October 2.07"
November 1.02"
December 0.72"
Annual total 25.42"

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 929
Heating degree days How much heating the climate demands 6,747
Approximate annual cooling cost At 15.36¢/kWh, South Dakota average $143
Approximate annual electric heating cost Lower where heating is gas rather than electric $363

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 Douglas County, where electricity is one line of eight.

Common questions

What is the weather like in Douglas County?

Douglas County averages a high of 88.0°F in July and a low of 10.0°F in January. Annual precipitation is 25.42 inches, including 34.4 inches of snow.

When is the rainy season in Douglas County?

The wettest stretch is Apr, May, Jun, which accounts for 43% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Douglas County?

The average daily high in July, the hottest month, is 88.0°F. That drives 929 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Douglas County?

Yes. Douglas County averages 34.4 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals: NOAA National Centers for Environmental Information, 1991 to 2020 Monthly Climate Normals, station ARMOUR, SD US (USC00390296), 5.4 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, South Dakota residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.