Frost Dates for 23936 — Dillwyn, Virginia

Half of springs at Farmville 2 N, VA see their last 32°F night by April 12; only one in ten is past it by March 29, and one in ten still has one after April 30. Planting tender crops after April 18 leaves a 30% risk of a frost on them, after April 22 20%, and after April 30 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 52% of the 128 Virginia stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 29 in half of years, as early as October 15 one year in ten, and holds off past November 9 one year in ten. A hard freeze of 28°F follows 7 days later, around November 5; in spring the one-in-ten date for 28°F is April 13, 17 days before the 32°F one. The freeze-free season lasts 199 days in a typical year, longer than at 53% of the 128 Virginia stations; it reaches 217 days one year in ten and falls short of 176 one year in ten. On average 105 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 12 days longer, to about April 24, and return around October 20. Severe cold of 16°F or below comes every winter, usually between December 25 and February 23.

July is the warmest month at Farmville 2 N, VA, averaging 89°F by day and 67°F at night; January is the coldest at 48°F and 26°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 83% of years.

Warmth for growing adds up to 4,138 growing degree days a year (base 50°F), more than at 64% of the 128 Virginia stations. 36% of them (1,500) have built up by the end of June, and July adds the most, 865. Precipitation totals 44.4 inches a year, most in September (4.6") and least in February (3.0"); May to September bring 44% of it.

The nearest other station, Bremo Bluff, VA, 17 miles northeast of Dillwyn and 225 feet lower, has a last frost 16 days later (April 28), a first frost 12 days earlier (October 17), a season 27 days shorter.

The first measurable snow (0.1 inch or more) in Dillwyn usually arrives around December 29, and the last of the season around March 6. Those are the middle dates across the winters of 1991–2020 at Buckingham, VA, 2.7 miles away: half of years saw snow earlier, half later. Snow fell in 90% of those winters. The last 32°F night of spring typically comes 37 days after the last snow.

ZIP 23936 is 15 miles from Farmville 2 N, VA, which stands at 450 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 23901 (Farmville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 23936 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.