Frost Dates for 71957 — Mount Ida, Arkansas

Half of springs at Mount Ida Asos, AR see their last 32°F night by April 2; only one in ten is past it by March 13, and one in ten still has one after April 20. Planting tender crops after April 8 leaves a 30% risk of a frost on them, after April 12 20%, and after April 20 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 60% of the 105 Arkansas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 31 in half of years, as early as October 16 one year in ten, and holds off past November 16 one year in ten. A hard freeze of 28°F follows 11 days later, around November 11; in spring the one-in-ten date for 28°F is April 4, 16 days before the 32°F one. The freeze-free season lasts 213 days in a typical year, shorter than at 70% of the 105 Arkansas stations; it reaches 237 days one year in ten and falls short of 190 one year in ten. On average 73 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 15, and return around October 21. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 88%.

July is the warmest month at Mount Ida Asos, AR, averaging 93°F by day and 69°F at night; January is the coldest at 53°F and 31°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 54% of years.

Warmth for growing adds up to 5,225 growing degree days a year (base 50°F), more than at 61% of the 105 Arkansas stations. 39% of them (2,045) have built up by the end of June, and July adds the most, 962. Precipitation totals 55.7 inches a year, most in April (6.2") and least in August (3.7"); May to September bring 40% of it.

The nearest other station, Mt Ida 3 SE, AR, 2 miles south of Mount Ida, has a last frost 6 days later (April 8), a first frost 5 days earlier (October 26), a season 12 days shorter.

Measurable snow is rare here: only 11 of 25 winters from 1991 to 2020 recorded 0.1 inch or more at Washita, AR, 4.3 miles away, so there is no typical first-snow date to plan around.

ZIP 71957 is 2 miles from Mount Ida Asos, AR, which stands at 702 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 71957 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.