Fairmont, OK 73736 Frost Dates
Frost dates for Fairmont, OK, ZIP 73736
The last spring frost here typically falls around 04/11, about 226 days from today. The first fall frost typically arrives around 10/31, about 201 frost-free days later.
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.
What to do before the first frost
Zone 7a around Fairmont has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
04/11 is the middle of 30 years of NOAA records, not a promise. Plant by 03/24 and you're betting against frost in roughly 9 years out of 10. 04/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Fairmont compares
Fairmont's growing season runs about 201 days, ranking 17,683 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 660 of 764.
Learn more
local microclimates explains what one yard in Fairmont can differ from the 73736 normal, and zone vs. frost date explains why Zone 7a and Fairmont's frost date answer different questions.