Maryland Snow Day Calculator

Maryland sits in the classic mid-latitude winter belt — enough snow to regularly close schools, not enough to build infrastructure for it. Across the 8 Maryland cities covered by SnowSense™, average annual snowfall is 22 inches. Hagerstown receive up to 28 inches in a typical winter; lower-latitude cities like Bowie see closer to 19.

School-closure decisions in Maryland often hinge on precipitation type as much as accumulation. Storms that cross the region frequently transition from snow to sleet to freezing rain and back, and the difference between a four-inch snow event and a one-inch ice-glaze event is invisible until the storm arrives. Districts tend to close preemptively when ice risk is in the forecast.

Pick a city above to see live snow day probability for your specific Maryland location. SnowSense™ refreshes every 30 minutes with live NWS forecast data, ice-risk modeling, and Maryland-calibrated closure thresholds.