Frost Dates for 74525 — Atoka, Oklahoma

Half of springs at Atoka, OK see their last 32°F night by April 5; only one in ten is past it by March 17, and one in ten still has one after April 22. Planting tender crops after April 11 leaves a 30% risk of a frost on them, after April 16 20%, and after April 22 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 41% of the 114 Oklahoma stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 1 in half of years, as early as October 18 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 10; in spring the one-in-ten date for 28°F is April 8, 14 days before the 32°F one. The freeze-free season lasts 211 days in a typical year, longer than at 51% of the 114 Oklahoma stations; it reaches 235 days one year in ten and falls short of 189 one year in ten. On average 78 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 9 days longer, to about April 14, and return around October 25. Severe cold of 16°F or below comes in 98% of winters, usually between December 20 and February 9.

July is the warmest month at Atoka, OK, averaging 94°F by day and 71°F at night; January is the coldest at 51°F and 28°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 62% of years.

Warmth for growing adds up to 5,294 growing degree days a year (base 50°F), more than at 75% of the 114 Oklahoma stations. 38% of them (2,001) have built up by the end of June, and July adds the most, 1,003. Precipitation totals 45.9 inches a year, most in May (7.0") and least in January (2.1"); May to September bring 49% of it.

The nearest other station, Centrahoma 2 ESE, OK, 21 miles northwest of Atoka, has a last frost 5 days earlier (March 31), a first frost 3 days later (November 4), a season 8 days longer.

The first measurable snow (0.1 inch or more) in Atoka usually arrives around January 13, and the last of the season around January 27. Those are the middle dates across the winters of 1991–2020 at Lehigh 4 SW, OK, 10.8 miles away: half of years saw snow earlier, half later. Snow fell in 68% of those winters. The last 32°F night of spring typically comes 68 days after the last snow.

ZIP 74525 is 4 miles from Atoka, OK, which stands at 565 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 74525 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.