Frost Dates for 24970 — Ronceverte, West Virginia

Half of springs at Lewisburg 3 N, WV see their last 32°F night by May 3; only one in ten is past it by April 17, and one in ten still has one after May 21. Planting tender crops after May 10 leaves a 30% risk of a frost on them, after May 15 20%, and after May 21 10%. The 18 days between the even-odds date and the one-in-ten date is narrower than at 40% of the 84 West Virginia stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 9 in half of years, as early as September 25 one year in ten, and holds off past October 24 one year in ten. A hard freeze of 28°F follows 11 days later, around October 20; in spring the one-in-ten date for 28°F is May 9, 12 days before the 32°F one. The freeze-free season lasts 158 days in a typical year, shorter than at 93% of the 84 West Virginia stations; it reaches 180 days one year in ten and falls short of 138 one year in ten. On average 139 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 10 days longer, to about May 13, and return around October 1. Severe cold of 16°F or below comes every winter, usually between November 20 and March 13.

July is the warmest month at Lewisburg 3 N, WV, averaging 82°F by day and 60°F at night; January is the coldest at 39°F and 20°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 57% of years.

Warmth for growing adds up to 2,824 growing degree days a year (base 50°F), fewer than at 92% of the 84 West Virginia stations. 35% of them (996) have built up by the end of June, and July adds the most, 651. Precipitation totals 41.6 inches a year, most in May (4.5") and least in November (2.5"); May to September bring 46% of it.

The nearest other station, White Sulphur Springs, WV, 9 miles east of Ronceverte and 381 feet lower, has a last frost 1 day earlier (May 2), a first frost 4 days later (October 13), a season 7 days longer.

The first measurable snow (0.1 inch or more) in Ronceverte usually arrives around December 3, and the last of the season around March 15. Those are the middle dates across the winters of 1991–2020 at Lewisburg 3 N, WV, 8.7 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 49 days after the last snow.

ZIP 24970 is 9 miles from Lewisburg 3 N, WV, which stands at 2,300 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 24901 (Lewisburg). The 2023 USDA Plant Hardiness Zone Map lists ZIP 24970 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°C) over 1991–2020; a zone describes winter lows, not frost dates.