Cost to Own
United States › Montana › Cascade County › Climate Station GREAT FALLS INTL AP, MT US Distance 10.9 mi Normals 1991–2020

30-year climate normals

Cascade County Climate and Weather Averages

Hottest month — July

84.3°

average daily high. The coldest month is January, averaging a low of 15.0°F.

Cascade County gets 14.76" of precipitation a year and 66.1" of snow, and 47% 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.

20° 40° 60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low PrecipSnow
January 35.3° 15.0° 0.55" 9.2"
February 37.1° 15.4° 0.59" 10.1"
March 46.1° 22.1° 0.68" 10.1"
April 54.9° 29.9° 1.73" 9.4"
May 64.6° 38.4° 2.43" 1.9"
June 72.8° 45.9° 2.72" 0.3"
July 84.3° 51.4° 1.23" 0.0"
August 83.2° 50.3° 1.22" 0.3"
September 71.7° 42.8° 1.33" 0.8"
October 57.0° 32.6° 1.07" 5.2"
November 43.7° 23.6° 0.68" 9.2"
December 35.6° 16.3° 0.53" 9.6"

Rainfall by month

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

January 0.55"
February 0.59"
March 0.68"
April 1.73"
May 2.43"
June 2.72"
July 1.23"
August 1.22"
September 1.33"
October 1.07"
November 0.68"
December 0.53"
Annual total 14.76"

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 310
Heating degree days How much heating the climate demands 7,722
Approximate annual cooling cost At 14.67¢/kWh, Montana average $45
Approximate annual electric heating cost Lower where heating is gas rather than electric $396

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 Cascade County, where electricity is one line of eight.

Common questions

What is the weather like in Cascade County?

Cascade County averages a high of 84.3°F in July and a low of 15.0°F in January. Annual precipitation is 14.76 inches, including 66.1 inches of snow.

When is the rainy season in Cascade County?

The wettest stretch is Apr, May, Jun, 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 Cascade County?

The average daily high in July, the hottest month, is 84.3°F. That drives 310 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Cascade County?

Yes. Cascade County averages 66.1 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station GREAT FALLS INTL AP, MT US (USW00024143), 10.9 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.