Frost Dates for 72751 — Pea Ridge, Arkansas

Half of springs at Washburn 5 W, MO see their last 32°F night by April 4; only one in ten is past it by March 18, and one in ten still has one after April 23. Planting tender crops after April 10 leaves a 30% risk of a frost on them, after April 15 20%, and after April 23 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 80% of the 105 Arkansas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 30 in half of years, as early as October 17 one year in ten, and holds off past November 15 one year in ten. A hard freeze of 28°F follows 9 days later, around November 8; in spring the one-in-ten date for 28°F is April 9, 14 days before the 32°F one. The freeze-free season lasts 207 days in a typical year, shorter than at 85% of the 105 Arkansas stations; it reaches 230 days one year in ten and falls short of 185 one year in ten. On average 87 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 16, and return around October 22. Severe cold of 16°F or below comes every winter, usually between December 13 and February 22.

July is the warmest month at Washburn 5 W, MO, averaging 89°F by day and 69°F at night; January is the coldest at 44°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 58% of years.

Warmth for growing adds up to 4,395 growing degree days a year (base 50°F), fewer than at 89% of the 105 Arkansas stations. 37% of them (1,611) have built up by the end of June, and July adds the most, 899.

The nearest other station, Bentonville 4 S, AR, 11 miles southwest of Pea Ridge and 180 feet lower, has a last frost 8 days later (April 12), a first frost 4 days earlier (October 26), a season 12 days shorter.

The first measurable snow (0.1 inch or more) in Pea Ridge usually arrives around December 23, and the last of the season around February 17. Those are the middle dates across the winters of 1991–2020 at Bentonville 4 S, AR, 10.6 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 46 days after the last snow.

ZIP 72751 is 9 miles from Washburn 5 W, MO, which stands at 1,400 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 72751 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.