Frost Dates for 73030 — Davis, Oklahoma

Half of springs at Chickasaw Nra, OK see their last 32°F night by April 4; only one in ten is past it by March 16, and one in ten still has one after April 22. Planting tender crops after April 12 leaves a 30% risk of a frost on them, after April 17 20%, and after April 22 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 31 in half of years, as early as October 17 one year in ten, and holds off past November 15 one year in ten. A hard freeze of 28°F follows 9 days later, around November 9; in spring the one-in-ten date for 28°F is April 12, 10 days before the 32°F one. The freeze-free season lasts 208 days in a typical year, shorter than at 62% of the 114 Oklahoma stations; it reaches 234 days one year in ten and falls short of 184 one year in ten. On average 76 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 22. Severe cold of 16°F or below comes in 98% of winters, usually between December 19 and February 10.

July is the warmest month at Chickasaw Nra, OK, averaging 93°F by day and 71°F at night; January is the coldest at 52°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 61% of years.

Warmth for growing adds up to 5,294 growing degree days a year (base 50°F), more than at 74% of the 114 Oklahoma stations. 38% of them (2,016) have built up by the end of June, and July adds the most, 998. Precipitation totals 41.8 inches a year, most in May (5.6") and least in February (1.9"); May to September bring 50% of it.

The nearest other station, Pauls Vly 1SSW Mesonet, OK, 17 miles north of Davis, has a last frost 7 days earlier (March 28), a first frost 7 days later (November 7), a season 15 days longer.

Measurable snow is rare here: only 6 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Elmore City 3 SW, OK, 17.8 miles away, so there is no typical first-snow date to plan around.

ZIP 73030 is 10 miles from Chickasaw Nra, OK, which stands at 1,047 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 73086 (Sulphur). The 2023 USDA Plant Hardiness Zone Map lists ZIP 73030 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.