Frost Dates for 74035 — Hominy, Oklahoma

Half of springs at Barnsdall, OK see their last 32°F night by March 31; only one in ten is past it by March 12, and one in ten still has one after April 14. Planting tender crops after April 6 leaves a 30% risk of a frost on them, after April 9 20%, and after April 14 10%. The 14 days between the even-odds date and the one-in-ten date is narrower than at 96% of the 114 Oklahoma 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 14 one year in ten, and holds off past November 13 one year in ten. A hard freeze of 28°F follows 8 days later, around November 8; in spring the one-in-ten date for 28°F is April 6, 8 days before the 32°F one. The freeze-free season lasts 212 days in a typical year, longer than at 54% of the 114 Oklahoma stations; it reaches 236 days one year in ten and falls short of 190 one year in ten. On average 88 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 11 days longer, to about April 11, and return around October 21. Severe cold of 16°F or below comes in 99% of winters, usually between December 14 and February 17.

July is the warmest month at Barnsdall, OK, averaging 92°F by day and 72°F at night; January is the coldest at 49°F and 25°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 46% of years.

Warmth for growing adds up to 4,959 growing degree days a year (base 50°F), fewer than at 78% of the 114 Oklahoma stations. 38% of them (1,880) have built up by the end of June, and July adds the most, 990.

The nearest other station, Mannford 6 NW, OK, 17 miles south of Hominy, has a last frost 6 days later (April 6), a first frost 2 days earlier (October 29), a season 5 days shorter.

The first measurable snow (0.1 inch or more) in Hominy usually arrives around December 21, and the last of the season around February 15. Those are the middle dates across the winters of 1991–2020 at Mannford 6 NW, OK, 17.1 miles away: half of years saw snow earlier, half later. Snow fell in 95% of those winters. The last 32°F night of spring typically comes 44 days after the last snow.

ZIP 74035 is 16 miles from Barnsdall, OK, which stands at 770 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 74070 (Skiatook). The 2023 USDA Plant Hardiness Zone Map lists ZIP 74035 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.