Garfield County Climate
Garfield County, Washington
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
49.8°F
Annual Precip
17.6"
Annual Snowfall
8.4"
Extreme Heat Days
27
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
2,195
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Garfield County
Climate Verdict
Garfield County has a cool, averaging 49.8°F annually, semi-arid conditions with only 17.6 inches of annual precipitation, occasional hot days — 26.9 per year above 90°F, light snow averaging 8.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 33.8°F. summers are pleasantly cool with July averaging 69.0°F. The 35°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Garfield County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Garfield County closely matches the Washington statewide average temperature of 49.9°F, it is also noticeably drier, receiving 20.9 inches less precipitation than the state average.
Climate Profile
About Garfield County Weather
A Typical Northwest Interior
Garfield County’s average temperature of 49.8°F sits slightly below the U.S. national median. Its climate balances moderate rainfall with distinct continental seasonal shifts.
Right at the State Average
At 49.8°F, the county sits right at the Washington state average, though its 17.6 inches of rain is less than half the state average of 38.5 inches. It represents the transition from the wet Cascades to the dry interior.
Wetter Than the Basin Floor
Garfield is significantly wetter than Franklin County, receiving nearly double the annual precipitation. However, it sees less snowfall than Douglas County to the northwest, averaging just 8.4 inches.
Hot Summers and Tame Winters
The county experiences 27 days of extreme heat above 90°F during summers that average 66.5°F. Winters are manageable with a 34.4°F average and relatively light snowfall compared to the mountain passes.
Water Conservation and Cooling
Residents should prepare for dry summers by utilizing water-efficient gardening techniques. While snowfall is light at 8.4 inches, the 27 days of extreme heat require functional air conditioning.
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.