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United States › Montana › Hill County › Climate Station HAVRE CITY CO AP, MT US Distance 16.8 mi Normals 1991–2020

30-year climate normals

Hill County Climate and Weather Averages

Hottest month — July

85.8°

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

Hill County gets 11.82" of precipitation a year and 41" of snow, and 50% 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 28.3° 7.2° 0.43" 9.0"
February 32.5° 10.1° 0.38" 6.9"
March 44.0° 20.1° 0.50" 5.2"
April 57.3° 30.6° 1.01" 2.7"
May 67.5° 40.2° 1.86" 0.4"
June 75.7° 48.5° 2.49" 0.0"
July 85.8° 53.9° 1.53" 0.0"
August 84.6° 52.2° 0.92" 0.0"
September 73.0° 42.5° 1.06" 0.4"
October 57.5° 30.7° 0.75" 2.0"
November 42.1° 19.7° 0.49" 6.2"
December 31.7° 10.5° 0.40" 8.2"

Rainfall by month

Hill County has a distinct wet season. 50% of the year's precipitation arrives in May, Jun, Jul.

January 0.43"
February 0.38"
March 0.50"
April 1.01"
May 1.86"
June 2.49"
July 1.53"
August 0.92"
September 1.06"
October 0.75"
November 0.49"
December 0.40"
Annual total 11.82"

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 406
Heating degree days How much heating the climate demands 8,174
Approximate annual cooling cost At 14.67¢/kWh, Montana average $60
Approximate annual electric heating cost Lower where heating is gas rather than electric $420

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 Hill County, where electricity is one line of eight.

Common questions

What is the weather like in Hill County?

Hill County averages a high of 85.8°F in July and a low of 7.2°F in January. Annual precipitation is 11.82 inches, including 41 inches of snow.

When is the rainy season in Hill County?

The wettest stretch is May, Jun, Jul, which accounts for 50% 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 Hill County?

The average daily high in July, the hottest month, is 85.8°F. That drives 406 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Hill County?

Yes. Hill County averages 41 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station HAVRE CITY CO AP, MT US (USW00094012), 16.8 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.