Bel Air, MD 21156 Frost Dates
When can you plant in Bel Air, MD?
The last spring frost here typically falls around 04/10, about 225 days from today. The first fall frost typically arrives around 10/30, about 201 frost-free days later.
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 Bel Air, not a forecast for this year.
What to do before the first frost
About 9 weeks of growing season left in Bel Air before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/10 is the middle of 30 years of NOAA records, not a promise. Plant by 03/27 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bel Air compares
At roughly 201 frost-free days, Bel Air places 17,482 of 40,283 ZIP codes in this dataset. Within MD, it ranks 455 of 583.
Learn more
zone vs. frost date covers why Zone 7b and Bel Air's frost date answer different questions. the frost range covers how to read the range around Bel Air's dates instead of trusting one.