Silver Bow County Climate

Silver Bow County, Montana

JanFebMarAprMayJunJulAugSepOctNovDec40.5°AVG °F

Avg Annual Temp

40.5°F

Annual Precip

12.0"

Annual Snowfall

15.2"

Extreme Heat Days

7.35

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.3"
0.5"
0.7"
1.1"
1.9"
2.3"
1.1"
1.1"
1.1"
0.8"
0.6"
0.5"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring32°48°3.7"Summer56°64°4.6"Fall29°53°2.5"Winter20°23°1.3"20°40°60°80°100°

National Comparison

Warmer than 3% of US counties
Wetter than 4% of US counties
More seasonal variation than 45% of US counties

Climate Profile

About Silver Bow County Weather

A High-Altitude, Dry Climate

Silver Bow County maintains a cool 40.5°F annual average, influenced by its significant elevation. This keeps the county much cooler than the national median throughout the year.

Cooler and Drier Than the State

At 40.5°F, Silver Bow is colder than the 43.7°F state average. It is also exceptionally dry, receiving only 12.0 inches of precipitation compared to the 15.4-inch state norm.

Low Heat and Low Snowfall

Compared to its neighbors, Silver Bow has very few extreme heat days, averaging just 7 per year. Surprisingly, it only sees 15.2 inches of annual snowfall, which is remarkably low for a high-altitude Montana county.

Milder Summers and Moderate Cold

July is very comfortable with an average of 63.8°F, and the county rarely sees extreme heat. Winters are cold but dry, with a January average of 20.8°F and minimal snow accumulation.

Dress in Layers for Dry Cold

Because of the low 12.0-inch annual precipitation, humidifiers are a common household need. Residents can enjoy summers without heavy air conditioning, but should prepare for constant winter chills.

Frequently Asked Questions

What is the average temperature in Silver Bow County?
The average annual temperature in Silver Bow County, MT is 40.5°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Silver Bow County get?
Silver Bow County receives an average of 12.0 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 Silver Bow County?
Yes, Silver Bow County receives an average of 15.2 inches of snowfall per year according to NOAA climate normals.
How hot does Silver Bow County get in summer?
The average summer temperature (June-August) in Silver Bow County is 60.4°F. The county experiences an average of 7.35 days per year above 90°F.
How cold are winters in Silver Bow County?
The average winter temperature (December-February) in Silver Bow County is 21.1°F. January, typically the coldest month, averages 20.8°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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