Frankfort, KS 66427 Frost Dates
Frost dates for Frankfort, KS, ZIP 66427
Typically, the last spring freeze lands around 04/20, roughly 235 days out. The first fall frost typically arrives around 10/18, about 180 frost-free days later.
Frankfort sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 6a around Frankfort 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.
The actual range around Frankfort's last frost
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Frankfort compares
About 180 days separate Frankfort's last and first frost, putting it 24,993 of 40,283 ZIP codes nationally. Within KS, it ranks 524 of 745.
Learn more
local microclimates explains what one yard in Frankfort can differ from the 66427 normal, and zone vs. frost date explains why Zone 6a and Frankfort's frost date answer different questions.