Frost dates in Mountain Lake Park, MD

The average last spring frost in Mountain Lake Park is around May 21 and the first fall frost is around September 26. That gives Mountain Lake Park an average growing season of about 128 days.

Last spring frost

Early (10% chance after)April 29
Average (50%)May 21
Late (90%)June 6

First fall frost

Early (10%)September 11
Average (50%)September 26
Late (90% chance before)October 12

See the Mountain Lake Park planting calendar →