Canton, MO 63435 Frost Dates
Frost dates for Canton, MO, ZIP 63435
Typically, the last spring freeze lands around 04/11, roughly 226 days out. The first fall frost typically arrives around 10/23, about 194 frost-free days later.
The USDA Plant Hardiness Zone Map puts Canton in Zone 6a (-10 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 6a around Canton 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.
How much risk comes with planting early here
04/11 is the middle of 30 years of NOAA records, not a promise. Plant by 03/29 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 Canton compares
About 194 days separate Canton's last and first frost, putting it 19,492 of 40,283 ZIP codes nationally. Within MO, it ranks 636 of 1,129.
Learn more
local microclimates explains what one yard in Canton can differ from the 63435 normal, and zone vs. frost date explains why Zone 6a and Canton's frost date answer different questions.