Cumberland, MD 21530 Frost Dates
Cumberland, MD: when does the frost end?
Around 04/15 is the usual last spring frost, about 230 days away. Fall's first freeze usually shows up around 10/24, roughly 190 days after the last spring frost.
Zone 7a (0 to 5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Cumberland, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Cumberland's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Cumberland's last frost
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Cumberland against the rest of the dataset
Cumberland's growing season runs about 190 days, ranking 21,065 of 40,283 US ZIP codes measured here, longest to shortest. Within MD, it ranks 524 of 583.
Learn more
Before leaning on 21530's figures: the frost range explains how to read the range around Cumberland's dates instead of trusting one, while local microclimates explains what one yard in Cumberland can differ from the 21530 normal.