Frost Dates for 40729 — East Bernstadt, Kentucky

Half of springs at London Corbin Airport, KY see their last 32°F night by April 15; only one in ten is past it by March 31, and one in ten still has one after May 3. Planting tender crops after April 22 leaves a 30% risk of a frost on them, after April 28 20%, and after May 3 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 54% of the 113 Kentucky stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 25 in half of years, as early as October 13 one year in ten, and holds off past November 6 one year in ten. A hard freeze of 28°F follows 9 days later, around November 3; in spring the one-in-ten date for 28°F is April 20, 13 days before the 32°F one. The freeze-free season lasts 192 days in a typical year, shorter than at 50% of the 113 Kentucky stations; it reaches 213 days one year in ten and falls short of 169 one year in ten. On average 89 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 13 days longer, to about April 28, and return around October 15. Severe cold of 16°F or below comes every winter, usually between December 15 and February 22.

July is the warmest month at London Corbin Airport, KY, averaging 86°F by day and 66°F at night; January is the coldest at 45°F and 27°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 85% of years and May still brings one in 16% of years.

Warmth for growing adds up to 4,064 growing degree days a year (base 50°F), more than at 56% of the 113 Kentucky stations. 38% of them (1,548) have built up by the end of June, and July adds the most, 815. Precipitation totals 51.4 inches a year, most in July (5.2") and least in October (3.3"); May to September bring 45% of it.

The nearest other station, Mt Vernon, KY, 14 miles northwest of East Bernstadt, has a last frost 3 days later (April 18), a first frost 1 day earlier (October 24), a season 3 days shorter.

The first measurable snow (0.1 inch or more) in East Bernstadt usually arrives around December 22, and the last of the season around February 25. Those are the middle dates across the winters of 1991–2020 at Mt Vernon, KY, 14.2 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 40729 is 10 miles from London Corbin Airport, KY, which stands at 1,188 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 40701 (Corbin). The 2023 USDA Plant Hardiness Zone Map lists ZIP 40729 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.