Choctaw, OK 73020 Frost Dates
73020, near Choctaw, OK: the frost window
Typically, the last spring freeze lands around 04/02, roughly 217 days out. Fall's first freeze usually shows up around 11/05, roughly 217 days after the last spring frost.
Choctaw sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Choctaw'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 04/02 isn't a guarantee
04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Choctaw against the rest of the dataset
At roughly 217 frost-free days, Choctaw places 13,435 of 40,283 ZIP codes in this dataset. Within OK, it ranks 251 of 764.
Learn more
Two guides worth reading on 73020: zone vs. frost date, on why Zone 7b and Choctaw's frost date answer different questions, and the frost range, on how to read the range around Choctaw's dates instead of trusting one.