This weather has a price Keeping the median Powder River County home comfortable runs roughly $482 a year in heating and cooling alone. See where it lands in the monthly bill

30-year climate normals

Powder River County Climate and Weather Averages

Hottest month: July

90.8°

average daily high. The coldest month is January, averaging a low of 11.4°F.

Powder River County gets 14.92" of precipitation a year, and 46% of it falls in Apr, May, Jun.

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	36.8°	11.4°	0.43"
February	40.3°	14.4°	0.52"
March	51.5°	23.7°	0.78"
April	60.7°	32.6°	1.77"
May	70.5°	42.3°	2.75"
June	81.2°	52.1°	2.37"
July	90.8°	58.8°	1.72"
August	89.6°	56.1°	1.28"
September	79.0°	45.8°	1.23"
October	63.2°	34.2°	1.12"
November	48.2°	22.1°	0.47"
December	37.7°	13.5°	0.48"

Rainfall by month

Powder River County has a distinct wet season. 46% of the year's precipitation arrives in Apr, May, Jun.

January 0.43"

February 0.52"

March 0.78"

April 1.77"

May 2.75"

June 2.37"

July 1.72"

August 1.28"

September 1.23"

October 1.12"

November 0.47"

December 0.48"

Annual total 14.92"

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 779

Heating degree days How much heating the climate demands 6,871

Approximate annual cooling cost At 15.14¢/kWh, Montana average $118

Approximate annual electric heating cost Lower where heating is gas rather than electric $364

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 Powder River County, where electricity is one line of eight.

Common questions

What is the weather like in Powder River County?

Powder River County averages a high of 90.8°F in July and a low of 11.4°F in January. Annual precipitation is 14.92 inches, with essentially no snow.

When is the rainy season in Powder River County?

The wettest stretch is Apr, May, Jun, 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 Powder River County?

The average daily high in July, the hottest month, is 90.8°F. That drives 779 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Powder River County?

The weather station used for Powder River County, BROADUS, MT US, reports temperature and precipitation but not snowfall, so there is no snow normal to quote here. Precipitation that falls as snow is still counted in the 14.92 inches above, measured as melted water.

Sources

Temperature, precipitation and snowfall normals: NOAA National Centers for Environmental Information, 1991 to 2020 Monthly Climate Normals, station BROADUS, MT US (USC00241127), 7.6 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, Montana residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.