Valliant, OK 74764 Frost Dates
74764, near Valliant, OK: the frost window
The last spring frost here typically falls around 03/20, about 204 days from today. Fall's first freeze usually shows up around 11/10, roughly 233 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Valliant 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
Valliant's growing season runs out in roughly 11 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 Valliant's last frost
03/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/11 and only about 1 year in 10 sees frost after that.
Valliant against the rest of the dataset
About 233 days separate Valliant's last and first frost, putting it 9,948 of 40,283 ZIP codes nationally. Within OK, it ranks 26 of 764.
Learn more
Two guides worth reading on 74764: local microclimates, on what one yard in Valliant can differ from the 74764 normal, and zone vs. frost date, on why Zone 8a and Valliant's frost date answer different questions.