Fitzhugh, OK 74843 Frost Dates
74843, near Fitzhugh, OK: the frost window
Typically, the last spring freeze lands around 03/29, roughly 213 days out. Fall's first freeze usually shows up around 11/06, roughly 222 days after the last spring frost.
Fitzhugh 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
Fitzhugh'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 03/29 isn't a guarantee
03/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/08 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.
Fitzhugh against the rest of the dataset
At roughly 222 frost-free days, Fitzhugh places 12,359 of 40,283 ZIP codes in this dataset. Within OK, it ranks 120 of 764.
Learn more
Two guides worth reading on 74843: local microclimates, on what one yard in Fitzhugh can differ from the 74843 normal, and zone vs. frost date, on why Zone 7b and Fitzhugh's frost date answer different questions.