Frost Dates for 73762 — Okarche, Oklahoma

Half of springs at Kingfisher 1W Mesonet, OK see their last 32°F night by April 9; only one in ten is past it by March 24, and one in ten still has one after April 25. Planting tender crops after April 16 leaves a 30% risk of a frost on them, after April 19 20%, and after April 25 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 1 in half of years, as early as October 17 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 9; in spring the one-in-ten date for 28°F is April 15, 10 days before the 32°F one. The freeze-free season lasts 204 days in a typical year, shorter than at 78% of the 114 Oklahoma stations; it reaches 225 days one year in ten and falls short of 184 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 10 days longer, to about April 19, and return around October 22. Severe cold of 16°F or below comes in 99% of winters, usually between December 10 and February 21.

July is the warmest month at Kingfisher 1W Mesonet, OK, averaging 96°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 76% of years.

Warmth for growing adds up to 5,093 growing degree days a year (base 50°F), fewer than at 59% of the 114 Oklahoma stations. 37% of them (1,895) have built up by the end of June, and July adds the most, 1,038.

The nearest other station, Kingfisher, OK, 10 miles north of Okarche, has a last frost 1 day earlier (April 8), the same first-frost date, a season 2 days longer.

The first measurable snow (0.1 inch or more) in Okarche usually arrives around January 4, and the last of the season around January 31. Those are the middle dates across the winters of 1991–2020 at Kingfisher, OK, 10.3 miles away: half of years saw snow earlier, half later. Snow fell in 86% of those winters. The last 32°F night of spring typically comes 68 days after the last snow.

ZIP 73762 is 10 miles from Kingfisher 1W Mesonet, OK, which stands at 1,059 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 73762 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.