Isabel, KS 67065 Frost Dates
Frost dates for Isabel, KS, ZIP 67065
Typically, the last spring freeze lands around 04/13, roughly 228 days out. The first fall frost typically arrives around 10/23, about 191 frost-free days later.
The USDA Plant Hardiness Zone Map puts Isabel in Zone 6b (-5 to 0°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 6b around Isabel has about 8 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.
The actual range around Isabel's last frost
04/13 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 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 Isabel compares
About 191 days separate Isabel's last and first frost, putting it 20,954 of 40,283 ZIP codes nationally. Within KS, it ranks 279 of 745.
Learn more
local microclimates explains what one yard in Isabel can differ from the 67065 normal, and zone vs. frost date explains why Zone 6b and Isabel's frost date answer different questions.