30-year climate normals

Hennepin County Climate and Weather Averages

Hottest month — July

83.3°

average daily high. The coldest month is January, averaging a low of 7.2°F.

Hennepin County gets 30.71" of precipitation a year, and 42% 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.

Month	Avg high	Avg low	Precip
January	23.9°	7.2°	0.61"
February	28.9°	10.8°	0.62"
March	41.6°	23.4°	1.42"
April	56.6°	35.2°	2.88"
May	69.5°	47.1°	4.34"
June	79.0°	57.9°	4.37"
July	83.3°	62.5°	4.19"
August	81.1°	60.5°	4.14"
September	73.0°	51.7°	3.16"
October	58.3°	38.3°	2.61"
November	42.1°	25.5°	1.47"
December	28.8°	13.4°	0.90"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 42% falling in the wettest three months (May, Jun, Jul).

January 0.61"

February 0.62"

March 1.42"

April 2.88"

May 4.34"

June 4.37"

July 4.19"

August 4.14"

September 3.16"

October 2.61"

November 1.47"

December 0.90"

Annual total 30.71"

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 703

Heating degree days How much heating the climate demands 7,654

Approximate annual cooling cost At 16.95¢/kWh, Minnesota average $119

Approximate annual electric heating cost Lower where heating is gas rather than electric $454

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 Hennepin County, where electricity is one line of eight.

Common questions

What is the weather like in Hennepin County?

Hennepin County averages a high of 83.3°F in July and a low of 7.2°F in January. Annual precipitation is 30.71 inches, with essentially no snow.

When is the rainy season in Hennepin County?

The wettest stretch is May, Jun, Jul, which accounts for 42% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Hennepin County?

The average daily high in July, the hottest month, is 83.3°F. That drives 703 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Hennepin County?

Effectively no. Measurable snowfall is rare in Hennepin County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station MPLS CRYSTAL AP, MN US (USW00094960), 7.2 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.