Grottoes, VA 24441 Frost Dates
Grottoes, VA: when does the frost end?
Typically, the last spring freeze lands around 04/21, roughly 236 days out. Fall's first freeze usually shows up around 10/23, roughly 184 days after the last spring frost.
Grottoes sits in USDA Zone 7a (0 to 5°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.
Stretching the season past the first frost
With roughly 8 weeks until Grottoes'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
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
Grottoes against the rest of the dataset
About 184 days separate Grottoes's last and first frost, putting it 23,547 of 40,283 ZIP codes nationally. Within VA, it ranks 957 of 1,178.
Learn more
Before leaning on 24441's figures: local microclimates explains what one yard in Grottoes can differ from the 24441 normal, while zone vs. frost date explains why Zone 7a and Grottoes's frost date answer different questions.