Annapolis, MD 21106 Frost Dates
Frost dates for Annapolis, MD, ZIP 21106
The last spring frost here typically falls around 03/27, about 211 days from today. The first fall frost typically arrives around 11/13, about 234 frost-free days later.
Zone 8a (10 to 15°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 Annapolis, not a forecast for this year.
What to do before the first frost
Zone 8a around Annapolis has about 11 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
03/27 is the middle of 30 years of NOAA records, not a promise. Plant by 03/09 and you're betting against frost in roughly 9 years out of 10. 04/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Annapolis compares
About 234 days separate Annapolis's last and first frost, putting it 9,699 of 40,283 ZIP codes nationally. Within MD, it ranks 66 of 583.
Learn more
zone vs. frost date explains why Zone 8a and Annapolis's frost date answer different questions, and the frost range explains how to read the range around Annapolis's dates instead of trusting one.