Frost Dates for 41514 — Belfry, Kentucky

Half of springs at Williamson, WV see their last 32°F night by April 8; only one in ten is past it by March 26, and one in ten still has one after April 25. Planting tender crops after April 15 leaves a 30% risk of a frost on them, after April 19 20%, and after April 25 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 47% of the 113 Kentucky stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 2 in half of years, as early as October 21 one year in ten, and holds off past November 13 one year in ten. A hard freeze of 28°F follows 8 days later, around November 10; in spring the one-in-ten date for 28°F is April 12, 13 days before the 32°F one. The freeze-free season lasts 206 days in a typical year, longer than at 77% of the 113 Kentucky stations; it reaches 225 days one year in ten and falls short of 183 one year in ten. On average 95 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 14 days longer, to about April 22, and return around October 25. Severe cold of 16°F or below comes in 99% of winters, usually between December 27 and February 14.

July is the warmest month at Williamson, WV, averaging 89°F by day and 67°F at night; January is the coldest at 47°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 76% of years.

Warmth for growing adds up to 4,311 growing degree days a year (base 50°F), more than at 75% of the 113 Kentucky stations. 37% of them (1,610) have built up by the end of June, and July adds the most, 854. Precipitation totals 48.3 inches a year, most in July (5.8") and least in November (3.0"); May to September bring 47% of it.

The nearest other station, Inez 2 E, KY, 18 miles northwest of Belfry, has a last frost 12 days later (April 20), a first frost 9 days earlier (October 24), a season 20 days shorter.

The first measurable snow (0.1 inch or more) in Belfry usually arrives around January 4, and the last of the season around March 9. Those are the middle dates across the winters of 1991–2020 at Williamson, WV, 1.5 miles away: half of years saw snow earlier, half later. Snow fell in 96% of those winters. The last 32°F night of spring typically comes 30 days after the last snow.

ZIP 41514 is 2 miles from Williamson, WV, which stands at 760 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station; its figures are presented in full for 25661 (Williamson). The 2023 USDA Plant Hardiness Zone Map lists ZIP 41514 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.