Garrett County Climate
Garrett County, Maryland
Avg Annual Temp
49.8°F
Annual Precip
46.1"
Annual Snowfall
104.9"
Extreme Heat Days
3.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.