Frost Dates for 72830 — Clarksville, Arkansas

Half of springs at Clarksville 2N, AR see their last 32°F night by March 24; only one in ten is past it by March 4, and one in ten still has one after April 10. Planting tender crops after April 1 leaves a 30% risk of a frost on them, after April 5 20%, and after April 10 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 November 10 in half of years, as early as October 28 one year in ten, and holds off past November 29 one year in ten. A hard freeze of 28°F follows 14 days later, around November 24; in spring the one-in-ten date for 28°F is March 30, 11 days before the 32°F one. The freeze-free season lasts 233 days in a typical year, longer than at 70% of the 105 Arkansas stations; it reaches 258 days one year in ten and falls short of 211 one year in ten. On average 70 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 6, and return around October 31. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 84%.

July is the warmest month at Clarksville 2N, AR, averaging 92°F by day and 71°F at night; January is the coldest at 48°F and 29°F. A freezing night is all but certain in every month from December 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 31% of years.

Warmth for growing adds up to 5,085 growing degree days a year (base 50°F), more than at 51% of the 105 Arkansas stations. 38% of them (1,911) have built up by the end of June, and July adds the most, 973. Precipitation totals 51.1 inches a year, most in May (5.5") and least in February (3.3"); May to September bring 42% of it.

The nearest other station, Clarksville 6 NE, AR, 5 miles northeast of Clarksville and 402 feet higher, has a last frost 1 day later (March 25), the same first-frost date, a season 1 day shorter.

Measurable snow is rare here: only 9 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Clarksville 2N, AR, 1 miles away, so there is no typical first-snow date to plan around.

ZIP 72830 is 1 mile from Clarksville 2N, AR, which stands at 448 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 72830 in zone 8a, the band where the coldest night of the year averaged 10 to 15°F (-12.2 to -9.4°C) over 1991–2020; a zone describes winter lows, not frost dates.