Port Deposit, MD 21034 Frost Dates
Port Deposit, MD: when does the frost end?
Around 04/03 is the usual last spring frost, about 218 days away. Fall's first freeze usually shows up around 11/06, roughly 217 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Port Deposit in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 10 weeks until Port Deposit's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Port Deposit's last frost
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Port Deposit against the rest of the dataset
At roughly 217 frost-free days, Port Deposit places 13,589 of 40,283 ZIP codes in this dataset. Within MD, it ranks 318 of 583.
Learn more
Before leaning on 21034's figures: the frost range explains how to read the range around Port Deposit's dates instead of trusting one, while local microclimates explains what one yard in Port Deposit can differ from the 21034 normal.