Fort Gibson, OK 74402 Frost Dates
Fort Gibson, OK: when does the frost end?
The last spring frost here typically falls around 04/07, about 222 days from today. Fall's first freeze usually shows up around 10/30, roughly 208 days after the last spring frost.
Fort Gibson 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
With roughly 9 weeks until Fort Gibson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/07 isn't a guarantee
04/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/26 and only about 1 year in 10 sees frost after that.
Fort Gibson against the rest of the dataset
Fort Gibson's growing season runs about 208 days, ranking 15,601 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 517 of 764.
Learn more
Before leaning on 74402's figures: the frost range explains how to read the range around Fort Gibson's dates instead of trusting one, while local microclimates explains what one yard in Fort Gibson can differ from the 74402 normal.