Location & Climate

Calvert County, located 30 miles southeast of Washington, D.C., is bounded on the east by the scenic Chesapeake Bay and on the west by the Patuxent River.

The county's location offers strategic geographic proximity to Baltimore, Annapolis and the Patuxent River Naval Air Station in Lexington Park and is accessible via major transportation networks including I-95, US 301, MD Routes 2, 4, 5 and 235 and the Port of Baltimore.


  • Yearly precipitation: 43.1 inches
  • Yearly snowfall: 19.4 inches
  • Summer temperature: 74.4 degrees F
  • Winter temperature: 36.4 degrees F
  • Duration of freeze-free period: 200 days
Note: Data is based on 30-year averages.
Source: Maryland State Office of Climatology