Average Annual Precipitation for Maryland

Share |

The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in Maryland.

Each place has a total for the amount of precipitation it usually receives in a year. Most locations also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The annual precipitation totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

You can jump to a separate table for each region of the state: Eastern Shore, Central Maryland and Western Maryland.

Eastern Shore

Average yearly precipitation
Days Place Inches Millimetres
114 Assateague Island 44.1 1120
109 Chestertown 44.1 1120
  – Ocean City 42.4 1076
112 Royal Oak 46.8 1188
116 Salisbury 45.9 1166
114 Snow Hill 46.1 1171

Central Maryland

Annual averages for rainfall plus snowfall
Days Place Inches Millimetres
  – Aberdeen 44.8 1138
115 Annapolis 47.3 1201
116 Baltimore 41.9 1064
114 Beltsville 41.8 1063
132 Catoctin Mountain Park 47.3 1201
106 College Park 43.7 1111
107 Frederick 41.0 1042
111 La Plata 43.6 1108
112 Rockville 40.3 1023

Western Maryland

Average amount of rain and snow a year
Days Place Inches Millimetres
127 Cumberland 37.4   949
  – Hagerstown 39.3   998
159 Oakland 47.8 1215
136 Savage River Reservoir Dam 39.8 1010
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

Share |

Average Weather

Maryland Precipitation

AMERICAN WEATHER

Major USA Cities

States

Extreme USA Weather