Prince George's County Climate
Prince George's County, Maryland
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
56.2°F
Annual Precip
45.8"
Annual Snowfall
15.9"
Extreme Heat Days
35
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7b
Minimum winter temperature range for plant survival
4,020
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Prince George's County
Climate Verdict
Prince George's County has a mild, with an average annual temperature of 56.2°F, moderately wet with 45.8 inches of annual precipitation, occasional hot days — 34.88 per year above 90°F, light snow averaging 15.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 34.2°F. summers are warm — July averages 78.0°F. The 44°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Prince George's County closely matches the Maryland statewide average temperature of 55.9°F.
Climate Profile
About Prince George's County Weather
Humid Subtropical Conditions
The 56.2°F average temperature puts Prince George's County well above the national median. Annual precipitation remains high at 45.8 inches.
Warmer than the State Average
This county is warmer than the Maryland state average of 55.9°F. Its precipitation levels align almost perfectly with the statewide average of 45.7 inches.
Hotter Summers than Montgomery
Prince George's faces 35 days of extreme heat annually, nearly twice the number seen in neighboring Montgomery County. It also sees about half the snowfall of its neighbor to the north.
Steamy Summers and Mild Winters
July heat averages 78.0°F, while January stays above freezing with a 34.2°F average. The county experiences 35 days per year where the temperature hits or exceeds 90°F.
Gear Up for Summer Humidity
Residents should focus on high-efficiency cooling and hydration during the long, hot summer. Snow tires are less of a priority here given the modest 15.9-inch annual snowfall.
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.