Centreville, MD 21656 Frost Dates
Frost dates for Centreville, MD, ZIP 21656
The last spring frost here typically falls around 04/03, about 218 days from today. The first fall frost typically arrives around 11/05, about 217 frost-free days later.
Centreville 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
Zone 7b around Centreville has about 10 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
04/03 is the middle of 30 years of NOAA records, not a promise. Plant by 03/20 and you're betting against frost in roughly 9 years out of 10. 04/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Centreville compares
At roughly 217 frost-free days, Centreville places 13,463 of 40,283 ZIP codes in this dataset. Within MD, it ranks 287 of 583.
Learn more
local microclimates explains what one yard in Centreville can differ from the 21656 normal, and zone vs. frost date explains why Zone 7b and Centreville's frost date answer different questions.