Frost Dates for 73801 — Woodward, Oklahoma

Half of springs at Woodward 2WSW Mesonet, OK see their last 32°F night by April 5; only one in ten is past it by March 19, and one in ten still has one after April 23. Planting tender crops after April 13 leaves a 30% risk of a frost on them, after April 17 20%, and after April 23 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 60% of the 114 Oklahoma stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 30 in half of years, as early as October 15 one year in ten, and holds off past November 14 one year in ten. A hard freeze of 28°F follows 9 days later, around November 8; in spring the one-in-ten date for 28°F is April 12, 11 days before the 32°F one. The freeze-free season lasts 206 days in a typical year, shorter than at 71% of the 114 Oklahoma stations; it reaches 227 days one year in ten and falls short of 183 one year in ten. On average 95 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 18, and return around October 21. Severe cold of 16°F or below comes every winter, usually between December 10 and February 20.

July is the warmest month at Woodward 2WSW Mesonet, OK, averaging 94°F by day and 70°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 63% of years.

Warmth for growing adds up to 4,874 growing degree days a year (base 50°F), fewer than at 84% of the 114 Oklahoma stations. 37% of them (1,815) have built up by the end of June, and July adds the most, 989.

The nearest other station, Mutual, OK, 19 miles southeast of Woodward and 160 feet lower, has a last frost 14 days later (April 19), a first frost 4 days earlier (October 26), a season 18 days shorter.

The first measurable snow (0.1 inch or more) in Woodward usually arrives around December 3, and the last of the season around March 8. Those are the middle dates across the winters of 1991–2020 at Woodward, OK, 1.6 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 28 days after the last snow.

ZIP 73801 is under a mile from Woodward 2WSW Mesonet, OK, which stands at 2,050 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 73801 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.