Garrett County Climate
Garrett County, Maryland
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
49.8°F
Annual Precip
46.1"
Annual Snowfall
104.9"
Extreme Heat Days
3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
2,667
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Garrett County
Climate Verdict
Garrett County has a cool, averaging 49.8°F annually, moderately wet with 46.1 inches of annual precipitation, rare extreme heat with only 3.4 days above 90°F annually, heavy winter snowfall averaging 104.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 27.8°F. summers are warm — July averages 70.7°F. The 43°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
Garrett County is 6.1°F cooler than the Maryland statewide average of 55.9°F, the county experiences 23.508166666666668 fewer extreme heat days than the state average.
Climate Profile
About Garrett County Weather
The coldest pocket of Maryland
Garrett County's 49.8°F annual average is the lowest in this group and well below the national median. Its high-altitude Appalachian climate is unique within the state.
Maryland's ultimate winter destination
As the coldest county in the state, Garrett sits 6.1 degrees below the Maryland average of 55.9°F. Its climate more closely resembles parts of New England than the rest of Maryland.
Far snowier than its neighbors
Garrett averages 104.9 inches of snow, more than double the amount seen in neighboring Allegany. It also records only 3 days of extreme heat, the lowest in the region.
Massive snowfall and cool summers
Winters are long and harsh with 104.9 inches of snow and a January average of 27.8°F. Summers are very mild, with July averaging only 70.7°F.
Winter gear is a necessity
Residents must have heavy-duty snow removal tools and winter-ready vehicles to handle 100-plus inches of snow. Air conditioning is rarely needed, as the county only sees 3 days above 90°F.
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.