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United States › North Dakota › Cass County › Climate Station CASSELTON AGRONOMY FARM, ND US Distance 3.6 mi Normals 1991–2020

30-year climate normals

Cass County Climate and Weather Averages

Hottest month — July

80.8°

average daily high. The coldest month is January, averaging a low of -1.4°F.

Cass County gets 24.2" of precipitation a year and 36.7" 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.

0° 20° 40° 60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low PrecipSnow
January 16.9° -1.4° 0.54" 7.4"
February 21.6° 2.1° 0.57" 6.6"
March 35.0° 16.6° 1.09" 6.2"
April 52.8° 30.6° 1.49" 3.3"
May 67.6° 43.2° 3.16" 0.0"
June 77.0° 54.9° 4.43" 0.0"
July 80.8° 58.6° 3.69" 0.0"
August 79.9° 55.8° 2.62" 0.0"
September 71.4° 46.4° 2.79" 0.0"
October 55.6° 33.8° 2.33" 0.7"
November 37.8° 19.7° 0.80" 4.4"
December 23.2° 6.6° 0.69" 8.1"

Rainfall by month

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

January 0.54"
February 0.57"
March 1.09"
April 1.49"
May 3.16"
June 4.43"
July 3.69"
August 2.62"
September 2.79"
October 2.33"
November 0.80"
December 0.69"
Annual total 24.2"

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 449
Heating degree days How much heating the climate demands 9,115
Approximate annual cooling cost At 13.61¢/kWh, North Dakota average $61
Approximate annual electric heating cost Lower where heating is gas rather than electric $434

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 Cass County, where electricity is one line of eight.

Common questions

What is the weather like in Cass County?

Cass County averages a high of 80.8°F in July and a low of -1.4°F in January. Annual precipitation is 24.2 inches, including 36.7 inches of snow.

When is the rainy season in Cass 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 Cass County?

The average daily high in July, the hottest month, is 80.8°F. That drives 449 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Cass County?

Yes. Cass County averages 36.7 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station CASSELTON AGRONOMY FARM, ND US (USC00321408), 3.6 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, North Dakota residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.