Ravalli County Climate

Ravalli County, Montana

JanFebMarAprMayJunJulAugSepOctNovDec43.7°AVG °F

Avg Annual Temp

43.7°F

Annual Precip

14.9"

Annual Snowfall

52.8"

Extreme Heat Days

19.516666666666666

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.0"
1.0"
1.0"
1.3"
1.8"
2.1"
1.0"
0.9"
1.1"
1.2"
1.4"
1.2"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring36°51°4.1"Summer58°65°4.0"Fall32°55°3.6"Winter24°28°3.2"20°40°60°80°100°

National Comparison

Warmer than 9% of US counties
Wetter than 7% of US counties
More seasonal variation than 31% of US counties

Climate Profile

About Ravalli County Weather

Ravalli County’s Cool Mountain Climate

Ravalli County maintains an average annual temperature of 43.7°F, which sits significantly lower than the national median. This alpine-influenced climate offers a crisp environment compared to more temperate regions across the United States.

Perfectly Aligned With Montana Averages

The county’s 43.7°F annual average matches the Montana state average exactly. While many counties vary wildly, Ravalli represents the thermal middle ground for the Big Sky State.

A Wetter Alternative to Mountain Neighbors

With 14.9 inches of annual precipitation, Ravalli is slightly drier than the state average of 15.4 inches. However, its 52.8 inches of annual snowfall outpaces many eastern Montana counties, keeping the Bitterroot Valley white for much of the winter.

Mild Summers and Snowy Winters

Summers are comfortable with a July average of 65.1°F, though residents still face 20 extreme heat days above 90°F annually. Winter brings a steady chill, with January temperatures averaging 25.3°F and significant seasonal snow accumulation.

Prepare for Snow and Seasonal Shifts

Residents should invest in high-quality snow removal equipment to manage the 52.8 inches of yearly snowfall. While summers are generally mild, the 20 days of extreme heat make supplemental cooling a wise addition for modern homes.

Frequently Asked Questions

What is the average temperature in Ravalli County?
The average annual temperature in Ravalli County, MT is 43.7°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Ravalli County get?
Ravalli County receives an average of 14.9 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Ravalli County?
Yes, Ravalli County receives an average of 52.8 inches of snowfall per year according to NOAA climate normals.
How hot does Ravalli County get in summer?
The average summer temperature (June-August) in Ravalli County is 62.1°F. The county experiences an average of 19.516666666666666 days per year above 90°F.
How cold are winters in Ravalli County?
The average winter temperature (December-February) in Ravalli County is 26.0°F. January, typically the coldest month, averages 25.4°F.

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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.

Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

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