Frost Dates for 23927 — Clarksville, Virginia

Half of springs at Clarksville, VA see their last 32°F night by March 31; only one in ten is past it by March 15, and one in ten still has one after April 14. Planting tender crops after April 5 leaves a 30% risk of a frost on them, after April 8 20%, and after April 14 10%. The 14 days between the even-odds date and the one-in-ten date is narrower than at 80% of the 128 Virginia stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 5 in half of years, as early as October 23 one year in ten, and holds off past November 21 one year in ten. A hard freeze of 28°F follows 13 days later, around November 18; in spring the one-in-ten date for 28°F is April 3, 11 days before the 32°F one. The freeze-free season lasts 220 days in a typical year, longer than at 85% of the 128 Virginia stations; it reaches 242 days one year in ten and falls short of 200 one year in ten. On average 78 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 12, and return around October 27. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 85%.

July is the warmest month at Clarksville, VA, averaging 90°F by day and 69°F at night; January is the coldest at 50°F and 28°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 46% of years.

Warmth for growing adds up to 4,639 growing degree days a year (base 50°F), more than at 91% of the 128 Virginia stations. 37% of them (1,738) have built up by the end of June, and July adds the most, 917. Precipitation totals 46.5 inches a year, most in June (5.2") and least in February (2.9"); May to September bring 48% of it.

The nearest other station, Chase City, VA, 12 miles north of Clarksville and 180 feet higher, has a last frost 6 days later (April 6), a first frost 4 days earlier (November 1), a season 11 days shorter.

The first measurable snow (0.1 inch or more) in Clarksville usually arrives around January 18, and the last of the season around February 20. Those are the middle dates across the winters of 1991–2020 at Clarksville, VA, 0.7 miles away: half of years saw snow earlier, half later. Snow fell in 66% of those winters. The last 32°F night of spring typically comes 39 days after the last snow.

ZIP 23927 is under a mile from Clarksville, VA, which stands at 330 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 23927 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.