Queen Anne, MD 21657 Frost Dates
Queen Anne, 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 11/05, roughly 217 days after the last spring frost.
Zone 7b (5 to 10°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 Queen Anne, not a forecast for this year.
Stretching the season past the first frost
With roughly 10 weeks until Queen Anne's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/03 isn't a guarantee
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Queen Anne against the rest of the dataset
At roughly 217 frost-free days, Queen Anne places 13,618 of 40,283 ZIP codes in this dataset. Within MD, it ranks 329 of 583.
Learn more
Before leaning on 21657's figures: zone vs. frost date explains why Zone 7b and Queen Anne's frost date answer different questions, while the frost range explains how to read the range around Queen Anne's dates instead of trusting one.