Kansas, OK 74347 Frost Dates
When can you plant in Kansas, OK?
Around 03/31 is the usual last spring frost, about 215 days away. The first fall frost typically arrives around 11/02, about 216 frost-free days later.
The USDA Plant Hardiness Zone Map puts Kansas in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 9 weeks of growing season left in Kansas before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
03/31 is the middle of 30 years of NOAA records, not a promise. Plant by 03/13 and you're betting against frost in roughly 9 years out of 10. 04/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kansas compares
About 216 days separate Kansas's last and first frost, putting it 13,863 of 40,283 ZIP codes nationally. Within OK, it ranks 338 of 764.
Learn more
local microclimates covers what one yard in Kansas can differ from the 74347 normal. zone vs. frost date covers why Zone 7a and Kansas's frost date answer different questions.