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United States › Montana › Broadwater County › Climate Station TOWNSEND 3SE, MT US Distance 3 mi Normals 1991–2020

30-year climate normals

Broadwater County Climate and Weather Averages

Hottest month — July

83.4°

average daily high. The coldest month is January, averaging a low of 13.7°F.

Broadwater County gets 10.55" of precipitation a year and 23.7" of snow, and 52% 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 33.9° 13.7° 0.28" 4.4"
February 38.7° 16.5° 0.28" 3.2"
March 49.4° 23.5° 0.42" 4.0"
April 58.2° 31.0° 0.85" 2.3"
May 67.0° 39.4° 1.78" 0.1"
June 74.1° 46.8° 2.51" 0.0"
July 83.4° 51.7° 1.21" 0.0"
August 82.6° 49.7° 1.10" 0.0"
September 72.7° 41.6° 0.78" 0.0"
October 58.5° 31.9° 0.65" 1.4"
November 43.7° 22.2° 0.39" 3.9"
December 33.8° 14.2° 0.30" 4.4"

Rainfall by month

Broadwater County has a distinct wet season. 52% of the year's precipitation arrives in May, Jun, Jul.

January 0.28"
February 0.28"
March 0.42"
April 0.85"
May 1.78"
June 2.51"
July 1.21"
August 1.10"
September 0.78"
October 0.65"
November 0.39"
December 0.30"
Annual total 10.55"

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 253
Heating degree days How much heating the climate demands 7,544
Approximate annual cooling cost At 14.67¢/kWh, Montana average $37
Approximate annual electric heating cost Lower where heating is gas rather than electric $387

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 Broadwater County, where electricity is one line of eight.

Common questions

What is the weather like in Broadwater County?

Broadwater County averages a high of 83.4°F in July and a low of 13.7°F in January. Annual precipitation is 10.55 inches, including 23.7 inches of snow.

When is the rainy season in Broadwater County?

The wettest stretch is May, Jun, Jul, which accounts for 52% 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 Broadwater County?

The average daily high in July, the hottest month, is 83.4°F. That drives 253 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Broadwater County?

Yes. Broadwater County averages 23.7 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station TOWNSEND 3SE, MT US (USC00248324), 3 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, Montana residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.