Phillips County Climate
Phillips County, Montana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
43.2°F
Annual Precip
13.7"
Annual Snowfall
18.8"
Extreme Heat Days
24
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
3b
Minimum winter temperature range for plant survival
2,097
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Phillips County
Climate Verdict
Phillips County has a cool, averaging 43.2°F annually, arid conditions receiving just 13.7 inches of precipitation annually, occasional hot days — 23.5 per year above 90°F, light snow averaging 18.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 16.9°F. summers are pleasantly cool with July averaging 69.7°F. Residents experience a substantial 53°F difference between winter and summer.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Phillips County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Phillips County closely matches the Montana statewide average temperature of 43.7°F.
Climate Profile
About Phillips County Weather
Chilly Plains Near the Border
This northern county’s 43.2°F average is over 11 degrees colder than the national median. It experiences the sharp, continental climate of the northern Great Plains.
Tracking with the State Average
Phillips sits just below the Montana state average of 43.7°F. Its location makes it prone to colder winter air masses than counties further south.
Low Precipitation in the North
With only 13.7 inches of annual precipitation, Phillips is drier than the state average of 15.4 inches. It sees much less snow at 18.8 inches than the mountainous counties to its west.
Harsh Winters and Brief Heat
Winter is harsh with a January average of 16.9°F, one of the colder marks in the region. Summers still bring 24 days of extreme heat despite the northern latitude.
Preparing for Biting Winter Cold
High-quality winter gear is the priority given the deep 19.1°F winter average. Efficient heating is more critical here than cooling, as extreme heat days are relatively limited.
Frequently Asked Questions
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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.