weatherbycounty

Rosebud County Climate

JanFebMarAprMayJunJulAugSepOctNovDec45.6°AVG °F

Avg Annual Temp

45.6°F

Annual Precip

14.8"

Annual Snowfall

35.4"

Extreme Heat Days

35

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.5"
0.5"
0.8"
1.7"
2.9"
2.5"
1.4"
1.0"
1.3"
1.3"
0.5"
0.5"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

5a

Minimum winter temperature range for plant survival

Growing Degree Days

2,336

Favors cool-season crops

Last spring frost (32°F): 05/15
First fall frost (32°F): 09/25

Seasonal Overview

Comfort ZoneSpring35°54°5.3"Summer64°72°5.0"Fall33°60°3.1"Winter21°25°1.5"20°40°60°80°100°

National Comparison

Warmer than 14% of US counties
Wetter than 7% of US counties
More seasonal variation than 83% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Rosebud County

Climate Verdict

Rosebud County has a cool, averaging 45.6°F annually, arid conditions receiving just 14.8 inches of precipitation annually, occasional hot days — 35.38 per year above 90°F, moderate snowfall of 35.4 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 21.2°F. summers are warm — July averages 71.9°F. Residents experience a substantial 51°F difference between winter and summer.

Outdoor & Gardening Guidance

Growing season and gardening data is currently limited for Rosebud County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.

Regional Context

Rosebud County closely matches the Montana statewide average temperature of 43.7°F.

Climate Profile

About Rosebud County Weather

Montana’s High Heat Pocket

Rosebud County’s 45.6°F average annual temperature is several degrees warmer than many surrounding northern counties. This creates a climate that is warmer than the state average, though still cooler than the U.S. median.

Surpassing State Heat Benchmarks

Rosebud reaches 45.6°F annually, notably higher than the Montana average of 43.7°F. It is one of the state's warmer counties, driven largely by its intense summer peaks.

Chasing the Sun in Eastern Montana

Rosebud averages 35 days of extreme heat per year, far exceeding the counts of its mountain-dwelling neighbors. Its 14.8 inches of precipitation and 35.4 inches of snow are typical for the eastern plains but low compared to the western peaks.

Hot Summers and Moderate Snow

Summer temperatures peak in July with an average of 71.9°F, accompanied by over a month of days exceeding 90°F. Winters are cold but manageable, with a December-February average of 23.0°F.

Plan for Sustained Summer Heat

With 35 days of temperatures above 90°F, heat mitigation is the primary concern for residents here. Ensure your cooling systems are serviced by June and keep winter tires ready for the 35.4 inches of annual snow.

Frequently Asked Questions

What is the average temperature in Rosebud County?
The average annual temperature in Rosebud County, MT is 45.6°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Rosebud County get?
Rosebud County receives an average of 14.8 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 Rosebud County?
Yes, Rosebud County receives an average of 35.4 inches of snowfall per year according to NOAA climate normals.
How hot does Rosebud County get in summer?
The average summer temperature (June-August) in Rosebud County is 68.7°F. The county experiences an average of 35 days per year above 90°F.
How cold are winters in Rosebud County?
The average winter temperature (December-February) in Rosebud County is 23.0°F. January, typically the coldest month, averages 21.2°F.

Track your own weather in Rosebud County

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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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