Crisfield, MD 21824 Frost Dates
21824, near Crisfield, MD: the frost window
Around 03/30 is the usual last spring frost, about 214 days away. Fall's first freeze usually shows up around 11/14, roughly 229 days after the last spring frost.
Crisfield sits in USDA Zone 8a (10 to 15°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.
Stretching the season past the first frost
Crisfield's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/30 isn't a guarantee
03/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/11 and only about 1 year in 10 sees frost after that.
Crisfield against the rest of the dataset
About 229 days separate Crisfield's last and first frost, putting it 10,596 of 40,283 ZIP codes nationally. Within MD, it ranks 97 of 583.
Learn more
Two guides worth reading on 21824: the frost range, on how to read the range around Crisfield's dates instead of trusting one, and local microclimates, on what one yard in Crisfield can differ from the 21824 normal.