Frost Dates for 72644 — Lead Hill, Arkansas

Half of springs at Lead Hill, AR see their last 32°F night by April 15; only one in ten is past it by March 30, and one in ten still has one after May 1. Planting tender crops after April 23 leaves a 30% risk of a frost on them, after April 26 20%, and after May 1 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 65% of the 105 Arkansas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 22 in half of years, as early as October 7 one year in ten, and holds off past November 4 one year in ten. A hard freeze of 28°F follows 10 days later, around November 1; in spring the one-in-ten date for 28°F is April 20, 11 days before the 32°F one. The freeze-free season lasts 189 days in a typical year, shorter than at 98% of the 105 Arkansas stations; it reaches 207 days one year in ten and falls short of 167 one year in ten. On average 108 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 27, and return around October 12. Severe cold of 16°F or below comes every winter, usually between December 5 and February 28.

July is the warmest month at Lead Hill, AR, averaging 88°F by day and 67°F at night; January is the coldest at 45°F and 23°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 87% of years and May still brings one in 10% of years.

Warmth for growing adds up to 4,019 growing degree days a year (base 50°F), fewer than at 97% of the 105 Arkansas stations. 36% of them (1,452) have built up by the end of June, and July adds the most, 848. Precipitation totals 47.6 inches a year, most in April (5.2") and least in February (2.8"); May to September bring 43% of it.

The nearest other station, Harrison Boone Co Airport, AR, 17 miles southwest of Lead Hill and 544 feet higher, has a last frost 12 days earlier (April 3), a first frost 8 days later (October 30), a season 21 days longer.

The first measurable snow (0.1 inch or more) in Lead Hill usually arrives around January 6, and the last of the season around February 25. Those are the middle dates across the winters of 1991–2020 at Lead Hill, AR, 0.6 miles away: half of years saw snow earlier, half later. Snow fell in 85% of those winters. The last 32°F night of spring typically comes 49 days after the last snow.

ZIP 72644 is under a mile from Lead Hill, AR, which stands at 830 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 72644 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.