Hampstead, MD 21023 Frost Dates
When can you plant in Hampstead, MD?
Typically, the last spring freeze lands around 04/19, roughly 234 days out. The first fall frost typically arrives around 10/25, about 188 frost-free days later.
Hampstead sits in USDA Zone 7b (5 to 10°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.
What to do before the first frost
About 8 weeks of growing season left in Hampstead before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Hampstead's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hampstead compares
At roughly 188 frost-free days, Hampstead places 21,975 of 40,283 ZIP codes in this dataset. Within MD, it ranks 529 of 583.
Learn more
local microclimates covers what one yard in Hampstead can differ from the 21023 normal. zone vs. frost date covers why Zone 7b and Hampstead's frost date answer different questions.