Centreville, MD 21617 Frost Dates
Centreville, MD: when does the frost end?
Around 04/03 is the usual last spring frost, about 218 days away. Fall's first freeze usually shows up around 11/05, roughly 217 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Centreville in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 10 weeks until Centreville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Centreville against the rest of the dataset
Centreville's growing season runs about 217 days, ranking 13,462 of 40,283 US ZIP codes measured here, longest to shortest. Within MD, it ranks 286 of 583.
Learn more
Before leaning on 21617's figures: local microclimates explains what one yard in Centreville can differ from the 21617 normal, while zone vs. frost date explains why Zone 7b and Centreville's frost date answer different questions.