Frost Dates for 74059 — Perkins, Oklahoma

Half of springs at Perkins 2NNW Mesonet, OK see their last 32°F night by April 4; only one in ten is past it by March 15, and one in ten still has one after April 20. Planting tender crops after April 11 leaves a 30% risk of a frost on them, after April 16 20%, and after April 20 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 61% of the 114 Oklahoma stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 2 in half of years, as early as October 19 one year in ten, and holds off past November 17 one year in ten. A hard freeze of 28°F follows 9 days later, around November 11; in spring the one-in-ten date for 28°F is April 8, 12 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 237 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 13 days longer, to about April 17, and return around October 23. Severe cold of 16°F or below comes in 98% of winters, usually between December 20 and February 14.

July is the warmest month at Perkins 2NNW Mesonet, OK, averaging 93°F by day and 71°F at night; January is the coldest at 49°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 59% of years.

Warmth for growing adds up to 5,080 growing degree days a year (base 50°F), fewer than at 61% of the 114 Oklahoma stations. 38% of them (1,920) have built up by the end of June, and July adds the most, 998.

The nearest other station, Stillwater 2 W, OK, 11 miles north of Perkins, has a last frost 1 day later (April 5), a first frost 3 days earlier (October 30), a season 6 days shorter.

The first measurable snow (0.1 inch or more) in Perkins usually arrives around January 9, and the last of the season around February 6. Those are the middle dates across the winters of 1991–2020 at Perkins, OK, 1 miles away: half of years saw snow earlier, half later. Snow fell in 79% of those winters. The last 32°F night of spring typically comes 57 days after the last snow.

ZIP 74059 is 2 miles from Perkins 2NNW Mesonet, OK, which stands at 958 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 74059 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.