Appalachian & Mid-Atlantic Region•Capital: Annapolis
Maryland Snow Day Predictor
MD
Maryland has dramatic regional variation, from coastal plains around Chesapeake Bay to mountain passes in Garrett County that receive over 100 inches of snow annually.
Typical Closure Threshold
3 to 6 inches (Western MD mountains: 6 to 10 inches)
Climate Classification
Mid-Atlantic Humid Subtropical / Appalachian West
Average Annual Snow Days
5–12 days (Western MD: 25+ days)
Maryland Cities & School Districts
Select your city below for localized school closure probability forecasts and district contacts.
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Department of Transportation Plowing Operations
MDOT SHA pre-treats I-95, I-270, and I-70 with salt brine and deploys contractors across suburban corridors.
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School Closure Decision Framework
Montgomery County Public Schools (MCPS) and Baltimore County public schools balance extensive bus fleets with heavy morning suburban commuter traffic.
Maryland Snow Day FAQs
Q:How does Montgomery County (MCPS) decide on school delays or closures?
MCPS emergency teams inspect roads, school parking lots, and walkways starting at 3:30 AM, issuing announcements by 5:00 AM.