Fairmont, OK 73702 Frost Dates
73702, near Fairmont, OK: the frost window
The last spring frost here typically falls around 04/11, about 226 days from today. Fall's first freeze usually shows up around 10/31, roughly 201 days after the last spring frost.
Zone 7a (0 to 5°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 Fairmont, not a forecast for this year.
Stretching the season past the first frost
Fairmont'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
04/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Fairmont against the rest of the dataset
About 201 days separate Fairmont's last and first frost, putting it 17,680 of 40,283 ZIP codes nationally. Within OK, it ranks 657 of 764.
Learn more
Two guides worth reading on 73702: local microclimates, on what one yard in Fairmont can differ from the 73702 normal, and zone vs. frost date, on why Zone 7a and Fairmont's frost date answer different questions.