Cumberland, MD 21524 Frost Dates
Frost dates for Cumberland, MD, ZIP 21524
Around 04/15 is the usual last spring frost, about 230 days away. The first fall frost typically arrives around 10/24, about 190 frost-free days later.
Cumberland sits in USDA Zone 7a (0 to 5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 7a around Cumberland has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 04/15 isn't a guarantee
04/15 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cumberland compares
At roughly 190 frost-free days, Cumberland places 21,064 of 40,283 ZIP codes in this dataset. Within MD, it ranks 523 of 583.
Learn more
the frost range explains how to read the range around Cumberland's dates instead of trusting one, and local microclimates explains what one yard in Cumberland can differ from the 21524 normal.