Oketo, KS 66518 Frost Dates
Frost dates for Oketo, KS, ZIP 66518
The last spring frost here typically falls around 04/25, about 240 days from today. The first fall frost typically arrives around 10/13, about 171 frost-free days later.
Zone 6a (-10 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 Oketo, not a forecast for this year.
What to do before the first frost
Zone 6a around Oketo has about 7 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.
Why 04/25 isn't a guarantee
04/25 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Oketo compares
At roughly 171 frost-free days, Oketo places 28,858 of 40,283 ZIP codes in this dataset. Within KS, it ranks 665 of 745.
Learn more
the frost range explains how to read the range around Oketo's dates instead of trusting one, and local microclimates explains what one yard in Oketo can differ from the 66518 normal.