Columbus, KS 66725 Frost Dates
Frost dates for Columbus, KS, ZIP 66725
Typically, the last spring freeze lands around 04/05, roughly 220 days out. The first fall frost typically arrives around 10/31, about 208 frost-free days later.
The USDA Plant Hardiness Zone Map puts Columbus 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
Zone 7a around Columbus 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
04/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/19 and you're betting against frost in roughly 9 years out of 10. 04/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Columbus compares
Columbus's growing season runs about 208 days, ranking 15,626 of 40,283 US ZIP codes measured here, longest to shortest. Within KS, it ranks 27 of 745.
Learn more
the frost range explains how to read the range around Columbus's dates instead of trusting one, and local microclimates explains what one yard in Columbus can differ from the 66725 normal.