Shawnee, OK 74801 Frost Dates
74801, near Shawnee, OK: the frost window
Around 03/30 is the usual last spring frost, about 214 days away. Fall's first freeze usually shows up around 11/05, roughly 221 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Shawnee in Zone 7b (5 to 10°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
Shawnee's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/30 isn't a guarantee
03/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Shawnee against the rest of the dataset
At roughly 221 frost-free days, Shawnee places 12,451 of 40,283 ZIP codes in this dataset. Within OK, it ranks 122 of 764.
Learn more
Two guides worth reading on 74801: local microclimates, on what one yard in Shawnee can differ from the 74801 normal, and zone vs. frost date, on why Zone 7b and Shawnee's frost date answer different questions.