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United States › North Dakota › Morton County › Climate Station BISMARCK, ND US Distance 26.4 mi Normals 1991–2020

30-year climate normals

Morton County Climate and Weather Averages

Hottest month — July

84.7°

average daily high. The coldest month is January, averaging a low of 2.4°F.

Morton County gets 19.05" of precipitation a year and 50.5" 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 23.2° 2.4° 0.48" 8.9"
February 27.8° 7.2° 0.52" 7.5"
March 41.0° 19.1° 0.84" 8.5"
April 56.0° 30.4° 1.34" 4.6"
May 68.3° 42.4° 2.50" 0.4"
June 77.9° 52.9° 3.36" 0.0"
July 84.7° 57.9° 3.07" 0.0"
August 83.5° 55.7° 2.50" 0.0"
September 73.4° 45.9° 1.72" 0.0"
October 57.1° 32.6° 1.43" 2.5"
November 40.6° 19.1° 0.69" 8.0"
December 27.7° 8.1° 0.60" 10.1"

Rainfall by month

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

January 0.48"
February 0.52"
March 0.84"
April 1.34"
May 2.50"
June 3.36"
July 3.07"
August 2.50"
September 1.72"
October 1.43"
November 0.69"
December 0.60"
Annual total 19.05"

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 536
Heating degree days How much heating the climate demands 8,471
Approximate annual cooling cost At 13.61¢/kWh, North Dakota average $73
Approximate annual electric heating cost Lower where heating is gas rather than electric $404

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 Morton County, where electricity is one line of eight.

Common questions

What is the weather like in Morton County?

Morton County averages a high of 84.7°F in July and a low of 2.4°F in January. Annual precipitation is 19.05 inches, including 50.5 inches of snow.

When is the rainy season in Morton 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 Morton County?

The average daily high in July, the hottest month, is 84.7°F. That drives 536 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Morton County?

Yes. Morton County averages 50.5 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station BISMARCK, ND US (USW00024011), 26.4 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.