Allegany County Climate
Allegany County, Maryland
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
51.2°F
Annual Precip
42.2"
Annual Snowfall
50.4"
Extreme Heat Days
19
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
3,031
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Allegany County
Climate Verdict
Allegany County has a mild, with an average annual temperature of 51.2°F, moderately wet with 42.2 inches of annual precipitation, rare extreme heat with only 19.25 days above 90°F annually, moderate snowfall of 50.4 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 28.5°F. summers are warm — July averages 72.6°F. The 44°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
Allegany County is 4.7°F cooler than the Maryland statewide average of 55.9°F, it is somewhat drier than average for Maryland.
Climate Profile
About Allegany County Weather
Cooler Appalachian air defines Allegany
With an annual average temperature of 51.2°F, Allegany County is cooler than the national median. This mountain climate experiences a humid continental pattern typical of the Appalachian region.
Well below the Maryland average
The county's 51.2°F average sits significantly below the Maryland state average of 55.9°F. It is one of the coldest jurisdictions in the state due to its higher elevation and western position.
Drier but colder than neighbors
Allegany receives 42.2 inches of rain, which is lower than the Maryland average of 45.7 inches. However, its winter average of 30.9°F makes it much colder than the central and coastal regions of the state.
Snowy winters and mild summers
The county endures 50.4 inches of snow annually and a January average of 28.5°F. Summers remain pleasant with a July average of 72.6°F and only 19 days reaching 90°F or higher.
Prepare for snow and heating
Residents should invest in heavy-duty snow removal equipment and robust home heating systems. The mild 70.7°F summer average means cooling needs are lower than in the rest of Maryland.
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.