Wicomico County Climate
Wicomico County, Maryland
Avg Annual Temp
57.8°F
Annual Precip
47.8"
Annual Snowfall
8.0"
Extreme Heat Days
30.75
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Wicomico County Weather
Warm and Wet Coastal Plain Climate
Wicomico County averages 57.8°F annually, placing it among the warmer regions in the United States. Its 47.8 inches of annual precipitation is significantly higher than the national average, fueled by its proximity to the Atlantic.
Warmer Than the Maryland Average
The county's 57.8°F average temperature exceeds the Maryland state average of 55.9°F by nearly two degrees. This makes Wicomico one of the warmer spots in the state, benefitting from coastal air and lower elevation.
Hotter Summers Than Its Eastern Neighbor
Wicomico shares a 57.8°F annual average with Worcester County but experiences more intense summer heat. It suffers through 31 extreme heat days per year, nine more than Worcester's coastal-cooled average of 22.
A Month of Extreme Summer Heat
July is sweltering with an average of 78.6°F and 31 days exceeding 90°F. Winters remain mild compared to the rest of the state, averaging 39.5°F with only 8.0 inches of annual snowfall.
Gear Up for High Humidity and Rainfall
With 47.8 inches of rain and 31 days of extreme heat, residents need high-capacity air conditioning and reliable rain gear. The mild 8.0-inch snowfall average means heavy winter gear is rarely a daily necessity.
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.