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United States › South Dakota › Edmunds County › Climate Station ROSCOE, SD US Distance 6.9 mi Normals 1991–2020

30-year climate normals

Edmunds County Climate and Weather Averages

Hottest month — July

82.8°

average daily high. The coldest month is January, averaging a low of 3.2°F.

Edmunds County gets 21.42" of precipitation a year and 47" of snow, and 47% 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 21.4° 3.2° 0.54" 8.1"
February 26.1° 6.7° 0.66" 8.8"
March 38.7° 17.9° 0.95" 7.3"
April 54.2° 29.9° 1.84" 5.8"
May 66.9° 43.0° 3.16" 0.1"
June 76.8° 54.2° 3.70" 0.0"
July 82.8° 58.7° 3.24" 0.0"
August 81.4° 56.2° 2.30" 0.0"
September 72.6° 46.6° 1.91" 0.0"
October 56.7° 33.3° 1.79" 2.3"
November 39.8° 19.9° 0.69" 5.9"
December 26.4° 9.2° 0.64" 8.7"

Rainfall by month

Edmunds County has a distinct wet season. 47% of the year's precipitation arrives in May, Jun, Jul.

January 0.54"
February 0.66"
March 0.95"
April 1.84"
May 3.16"
June 3.70"
July 3.24"
August 2.30"
September 1.91"
October 1.79"
November 0.69"
December 0.64"
Annual total 21.42"

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 503
Heating degree days How much heating the climate demands 8,624
Approximate annual cooling cost At 15.73¢/kWh, South Dakota average $79
Approximate annual electric heating cost Lower where heating is gas rather than electric $475

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 Edmunds County, where electricity is one line of eight.

Common questions

What is the weather like in Edmunds County?

Edmunds County averages a high of 82.8°F in July and a low of 3.2°F in January. Annual precipitation is 21.42 inches, including 47 inches of snow.

When is the rainy season in Edmunds County?

The wettest stretch is May, Jun, Jul, which accounts for 47% of the year's precipitation. That is a pronounced wet season rather than rain spread evenly through the year.

How hot does it get in Edmunds County?

The average daily high in July, the hottest month, is 82.8°F. That drives 503 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Edmunds County?

Yes. Edmunds County averages 47 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station ROSCOE, SD US (USC00397277), 6.9 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, South Dakota residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.