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United States › Montana › Fallon County › Climate Station BAKER MUNI AP, MT US Distance 7.9 mi Normals 1991–2020

30-year climate normals

Fallon County Climate and Weather Averages

Hottest month — July

85.4°

average daily high. The coldest month is January, averaging a low of 7.0°F.

Fallon County gets 14.58" of precipitation a year, and 51% 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 Precip
January 28.3° 7.0° 0.22"
February 31.4° 10.3° 0.25"
March 43.0° 20.2° 0.53"
April 54.7° 29.9° 1.35"
May 65.3° 40.0° 2.66"
June 75.8° 49.9° 2.81"
July 85.4° 56.1° 2.03"
August 84.6° 53.7° 1.49"
September 73.3° 44.0° 1.53"
October 56.6° 31.1° 1.10"
November 42.0° 19.5° 0.43"
December 31.2° 10.2° 0.18"

Rainfall by month

Fallon County has a distinct wet season. 51% of the year's precipitation arrives in May, Jun, Jul.

January 0.22"
February 0.25"
March 0.53"
April 1.35"
May 2.66"
June 2.81"
July 2.03"
August 1.49"
September 1.53"
October 1.10"
November 0.43"
December 0.18"
Annual total 14.58"

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 468
Heating degree days How much heating the climate demands 8,276
Approximate annual cooling cost At 14.67¢/kWh, Montana average $69
Approximate annual electric heating cost Lower where heating is gas rather than electric $425

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 Fallon County, where electricity is one line of eight.

Common questions

What is the weather like in Fallon County?

Fallon County averages a high of 85.4°F in July and a low of 7.0°F in January. Annual precipitation is 14.58 inches, with essentially no snow.

When is the rainy season in Fallon County?

The wettest stretch is May, Jun, Jul, which accounts for 51% 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 Fallon County?

The average daily high in July, the hottest month, is 85.4°F. That drives 468 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Fallon County?

Effectively no. Measurable snowfall is rare in Fallon County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station BAKER MUNI AP, MT US (USW00094055), 7.9 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.