Weston County Climate
Weston County, Wyoming
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
45.3°F
Annual Precip
16.0"
Annual Snowfall
42.6"
Extreme Heat Days
33
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
2,321
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Weston County
Climate Verdict
Weston County has a cool, averaging 45.3°F annually, semi-arid conditions with only 16.0 inches of annual precipitation, occasional hot days — 33.36666666666667 per year above 90°F, moderate snowfall of 42.6 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 22.2°F. summers are warm — July averages 72.2°F. Residents experience a substantial 50°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Weston County closely matches the Wyoming statewide average temperature of 43.8°F, it is somewhat wetter than average for Wyoming.
Climate Profile
About Weston County Weather
High Plains Warmth in Weston
Weston County averages 45.3°F, making it one of the warmer spots in Wyoming, though it remains 8 degrees below the national median. Its location on the eastern plains invites more summer heat.
Leading the State in Temperature
Weston exceeds the state average temperature of 43.8°F by 1.5 degrees. It also receives 16.0 inches of precipitation, making it slightly wetter than the Wyoming average.
A Warm Eastern Neighbor
Weston is warmer and drier than Sheridan County to its west. It records 33 days of extreme heat, significantly more than the high-altitude counties in the state's interior.
Hot Summers and Brisk Snow
July averages 72.2°F with 33 days reaching over 90°F annually. Winters bring a January average of 22.2°F and a manageable 42.6 inches of annual snowfall.
Prepare for Both Extremes
Residents should plan for a month of extreme summer heat and cold winter nights averaging 23.2°F. Proper home insulation and cooling systems are both necessary for year-round comfort.
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.