Madison County Climate
Madison County, Montana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
43.9°F
Annual Precip
13.2"
Annual Snowfall
45.7"
Extreme Heat Days
12
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
1,597
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Madison County
Climate Verdict
Madison County has a cool, averaging 43.9°F annually, arid conditions receiving just 13.2 inches of precipitation annually, rare extreme heat with only 12.1 days above 90°F annually, moderate snowfall of 45.7 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 25.4°F. summers are pleasantly cool with July averaging 65.9°F. The 41°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Madison County closely matches the Montana statewide average temperature of 43.7°F, it is somewhat drier than average for Montana.
Climate Profile
About Madison County Weather
High Altitude Cool and Steady Precip
Madison County's average annual temperature of 43.9°F reflects its high-elevation geography and northern latitude. It receives 13.2 inches of precipitation, placing it on the drier side of the national spectrum.
Typical Montana Temperatures and Snow
The county's 43.9°F average is nearly identical to the Montana state average of 43.7°F. However, it receives 45.7 inches of snow, which is higher than several of its central Montana counterparts.
Colder and Snowier Than Lewis and Clark
Madison County records 45.7 inches of snow, roughly 13 inches more than Lewis and Clark County. It also sees fewer extreme heat days, with only 12 days hitting 90°F compared to 15 in the state capital area.
Temperate Summers and Bracing Winters
Summer averages a comfortable 62.9°F, making it one of the cooler summer retreats in the state. Winters are consistent, with January lows averaging 25.4°F and snowfall peaking between December and February.
Focus on Winter Prep and Low Heat
With only 12 extreme heat days, air conditioning is less critical than high-performance heating and snow tires. The 45.7 inches of annual snow requires regular maintenance and proper roof structural considerations.
Frequently Asked Questions
What is the average temperature in Madison County?
How much rain does Madison County get?
Does it snow in Madison County?
How hot does Madison County get in summer?
How cold are winters in Madison County?
Track your own weather in Madison 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.