Frost Dates for 74955 — Sallisaw, Oklahoma

Half of springs at Sallisaw 2 NW, OK see their last 32°F night by March 30; only one in ten is past it by March 10, and one in ten still has one after April 16. Planting tender crops after April 5 leaves a 30% risk of a frost on them, after April 9 20%, and after April 16 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 7 in half of years, as early as October 23 one year in ten, and holds off past November 26 one year in ten. A hard freeze of 28°F follows 13 days later, around November 20; in spring the one-in-ten date for 28°F is April 3, 13 days before the 32°F one. The freeze-free season lasts 223 days in a typical year, longer than at 85% of the 114 Oklahoma stations; it reaches 247 days one year in ten and falls short of 196 one year in ten. On average 67 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 9, and return around October 28. Severe cold of 16°F or below comes in 92% of winters, usually between December 30 and February 5.

July is the warmest month at Sallisaw 2 NW, OK, averaging 91°F by day and 71°F at night; January is the coldest at 48°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 43% of years.

Warmth for growing adds up to 4,968 growing degree days a year (base 50°F), fewer than at 77% of the 114 Oklahoma stations. 37% of them (1,847) have built up by the end of June, and July adds the most, 964. Precipitation totals 47.5 inches a year, most in May (5.8") and least in February (2.6"); May to September bring 47% of it.

The nearest other station, Webbers Falls 5 WSW, OK, 24 miles west of Sallisaw, has a last frost 7 days later (April 6), a first frost 8 days earlier (October 30), a season 17 days shorter.

Measurable snow is rare here: only 9 of 19 winters from 1991 to 2020 recorded 0.1 inch or more at Sallisaw 2 NW, OK, 1.2 miles away, so there is no typical first-snow date to plan around.

ZIP 74955 is 1 mile from Sallisaw 2 NW, OK, which stands at 660 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 74955 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.