Severn, NC 27877 Frost Dates
27877, near Severn, NC: the frost window
Around 04/06 is the usual last spring frost, about 221 days away. Fall's first freeze usually shows up around 11/01, roughly 208 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Severn in Zone 8a (10 to 15°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
Severn's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/23 and only about 1 year in 10 sees frost after that.
Severn against the rest of the dataset
At roughly 208 frost-free days, Severn places 15,766 of 40,283 ZIP codes in this dataset. Within NC, it ranks 805 of 1,078.
Learn more
Two guides worth reading on 27877: local microclimates, on what one yard in Severn can differ from the 27877 normal, and zone vs. frost date, on why Zone 8a and Severn's frost date answer different questions.