Soper, OK 74759 Frost Dates
74759, near Soper, 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.
Zone 8a (10 to 15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Soper, not a forecast for this year.
Stretching the season past the first frost
Soper'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.
How much risk comes with planting early here
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.
Soper against the rest of the dataset
About 212 days separate Soper's last and first frost, putting it 14,684 of 40,283 ZIP codes nationally. Within OK, it ranks 438 of 764.
Learn more
Two guides worth reading on 74759: local microclimates, on what one yard in Soper can differ from the 74759 normal, and zone vs. frost date, on why Zone 8a and Soper's frost date answer different questions.