Annapolis, MD 21411 Frost Dates
Annapolis, MD: when does the frost end?
The last spring frost here typically falls around 03/27, about 211 days from today. Fall's first freeze usually shows up around 11/13, roughly 234 days after the last spring frost.
Annapolis 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
With roughly 11 weeks until Annapolis's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/27 isn't a guarantee
03/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/09 and only about 1 year in 10 sees frost after that.
Annapolis against the rest of the dataset
About 234 days separate Annapolis's last and first frost, putting it 9,707 of 40,283 ZIP codes nationally. Within MD, it ranks 74 of 583.
Learn more
Before leaning on 21411's figures: the frost range explains how to read the range around Annapolis's dates instead of trusting one, while local microclimates explains what one yard in Annapolis can differ from the 21411 normal.