Cost to Own
United States › South Dakota › Hamlin County › Climate Station WATERTOWN RGNL AP, SD US Distance 15.5 mi Normals 1991 to 2020
This weather has a price Keeping the median Hamlin County home comfortable runs roughly $537 a year in heating and cooling alone. See where it lands in the monthly bill

30-year climate normals

Hamlin County Climate and Weather Averages

Hottest month: July

82.0°

average daily high. The coldest month is January, averaging a low of 3.1°F.

Hamlin County gets 22.71" of precipitation a year and 41.1" of snow, and 43% of it falls in Jun, Jul, Aug.

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° 3.1° 0.58" 6.7"
February 25.9° 6.7° 0.65" 8.9"
March 38.6° 19.6° 1.00" 5.4"
April 54.0° 31.5° 2.06" 5.2"
May 66.9° 44.5° 2.87" 0.1"
June 76.8° 55.4° 3.85" 0.0"
July 82.0° 60.0° 3.05" 0.0"
August 79.5° 57.5° 2.89" 0.0"
September 71.6° 48.6° 2.45" 0.0"
October 56.2° 35.2° 1.95" 1.4"
November 39.8° 21.3° 0.68" 4.5"
December 26.3° 9.3° 0.68" 8.9"

Rainfall by month

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

January 0.58"
February 0.65"
March 1.00"
April 2.06"
May 2.87"
June 3.85"
July 3.05"
August 2.89"
September 2.45"
October 1.95"
November 0.68"
December 0.68"
Annual total 22.71"

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 518
Heating degree days How much heating the climate demands 8,501
Approximate annual cooling cost At 15.36¢/kWh, South Dakota average $80
Approximate annual electric heating cost Lower where heating is gas rather than electric $457

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 Hamlin County, where electricity is one line of eight.

Common questions

What is the weather like in Hamlin County?

Hamlin County averages a high of 82.0°F in July and a low of 3.1°F in January. Annual precipitation is 22.71 inches, including 41.1 inches of snow.

When is the rainy season in Hamlin County?

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

How hot does it get in Hamlin County?

The average daily high in July, the hottest month, is 82.0°F. That drives 518 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Hamlin County?

Yes. Hamlin County averages 41.1 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals: NOAA National Centers for Environmental Information, 1991 to 2020 Monthly Climate Normals, station WATERTOWN RGNL AP, SD US (USW00014946), 15.5 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.