Clayton, OK 74567 Frost Dates
74567, near Clayton, OK: the frost window
Around 04/02 is the usual last spring frost, about 217 days away. Fall's first freeze usually shows up around 11/01, roughly 212 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Clayton in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Clayton's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Clayton's last frost
04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/20 and only about 1 year in 10 sees frost after that.
Clayton against the rest of the dataset
Clayton's growing season runs about 212 days, ranking 14,658 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 432 of 764.
Learn more
Two guides worth reading on 74567: local microclimates, on what one yard in Clayton can differ from the 74567 normal, and zone vs. frost date, on why Zone 8a and Clayton's frost date answer different questions.