Frost Dates for 72712 — Bentonville, Arkansas

Half of springs at Bentonville 4 S, AR see their last 32°F night by April 12; only one in ten is past it by March 27, and one in ten still has one after April 29. Planting tender crops after April 19 leaves a 30% risk of a frost on them, after April 23 20%, and after April 29 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 41% of the 105 Arkansas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 26 in half of years, as early as October 13 one year in ten, and holds off past November 9 one year in ten. A hard freeze of 28°F follows 9 days later, around November 4; in spring the one-in-ten date for 28°F is April 18, 11 days before the 32°F one. The freeze-free season lasts 195 days in a typical year, shorter than at 95% of the 105 Arkansas stations; it reaches 220 days one year in ten and falls short of 173 one year in ten. On average 101 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 24, and return around October 17. Severe cold of 16°F or below comes every winter, usually between December 10 and February 26.

July is the warmest month at Bentonville 4 S, AR, averaging 89°F by day and 67°F at night; January is the coldest at 46°F and 24°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 79% of years.

Warmth for growing adds up to 4,260 growing degree days a year (base 50°F), fewer than at 92% of the 105 Arkansas stations. 36% of them (1,550) have built up by the end of June, and July adds the most, 866. Precipitation totals 47.5 inches a year, most in May (6.3") and least in January (2.7"); May to September bring 47% of it.

The nearest other station, Fayetteville NW Ar Airport, AR, 7 miles southwest of Bentonville, has a last frost 4 days earlier (April 8), a first frost 2 days later (October 28), a season 8 days longer.

The first measurable snow (0.1 inch or more) in Bentonville 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, 3 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 54 days after the last snow.

ZIP 72712 is 3 miles from Bentonville 4 S, AR, which stands at 1,220 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 6 other ZIP codes share the station; its figures are presented in full for 72758 (Rogers). The 2023 USDA Plant Hardiness Zone Map lists ZIP 72712 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.