30-year climate normals

Norman County Climate and Weather Averages

Hottest month — July

80.7°

average daily high. The coldest month is January, averaging a low of -3.9°F.

Norman County gets 25.04" of precipitation a year, and 46% 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.

Month	Avg high	Avg low	Precip
January	16.0°	-3.9°	0.78"
February	20.8°	-0.8°	0.66"
March	34.9°	14.1°	1.01"
April	52.8°	29.5°	1.45"
May	67.2°	41.6°	2.87"
June	76.7°	53.2°	4.62"
July	80.7°	56.8°	3.90"
August	79.7°	54.0°	2.93"
September	70.9°	45.5°	2.80"
October	54.8°	32.8°	2.23"
November	36.6°	18.5°	0.87"
December	22.3°	4.5°	0.92"

Rainfall by month

Norman County has a distinct wet season. 46% of the year's precipitation arrives in Jun, Jul, Aug.

January 0.78"

February 0.66"

March 1.01"

April 1.45"

May 2.87"

June 4.62"

July 3.90"

August 2.93"

September 2.80"

October 2.23"

November 0.87"

December 0.92"

Annual total 25.04"

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 392

Heating degree days How much heating the climate demands 9,471

Approximate annual cooling cost At 16.95¢/kWh, Minnesota average $66

Approximate annual electric heating cost Lower where heating is gas rather than electric $562

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 Norman County, where electricity is one line of eight.

Common questions

What is the weather like in Norman County?

Norman County averages a high of 80.7°F in July and a low of -3.9°F in January. Annual precipitation is 25.04 inches, with essentially no snow.

When is the rainy season in Norman County?

The wettest stretch is Jun, Jul, Aug, which accounts for 46% 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 Norman County?

The average daily high in July, the hottest month, is 80.7°F. That drives 392 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Norman County?

Effectively no. Measurable snowfall is rare in Norman County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station ADA, MN US (USC00210018), 3.2 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, Minnesota residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.