Treasure County Climate
Treasure County, Montana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
45.9°F
Annual Precip
14.9"
Annual Snowfall
42.3"
Extreme Heat Days
35
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
2,302
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Treasure County
Climate Verdict
Treasure County has a cool, averaging 45.9°F annually, arid conditions receiving just 14.9 inches of precipitation annually, occasional hot days — 34.65 per year above 90°F, moderate snowfall of 42.3 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 22.4°F. summers are warm — July averages 71.5°F. The 49°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Treasure County closely matches the Montana statewide average temperature of 43.7°F.
Climate Profile
About Treasure County Weather
Warmer and drier than neighbors
Treasure County averages 45.9°F annually, which is warmer than most of Montana but still below the national median. It receives 14.9 inches of precipitation, typical for the semi-arid high plains of the American West.
A warm spot in Montana
At 45.9°F, Treasure County is significantly warmer than the state average of 43.7°F. This warmth is driven by intense summers where heat can be persistent and extreme.
High heat on the Yellowstone
The county experiences 35 days of extreme heat annually, rivaling Yellowstone County's totals. This is nearly double the heat days of Sweet Grass or Wheatland counties to the west.
Intense summers and moderate snow
July is hot with an average of 71.5°F, while the summer-wide average is a warm 68.2°F. Winter remains cold with a 24.1°F average and 42.3 inches of annual snowfall.
Prioritize cooling and irrigation
With 35 days of 90°F heat, reliable air conditioning is more important here than in most other Montana counties. Gardeners should plan for supplemental irrigation to offset the relatively low 14.9 inches of annual rainfall.
Frequently Asked Questions
What is the average temperature in Treasure County?
How much rain does Treasure County get?
Does it snow in Treasure County?
How hot does Treasure County get in summer?
How cold are winters in Treasure County?
Track your own weather in Treasure County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.