Olean, MO 65064 Frost Dates
Frost dates for Olean, MO, ZIP 65064
Typically, the last spring freeze lands around 04/07, roughly 222 days out. The first fall frost typically arrives around 11/01, about 208 frost-free days later.
Zone 6b (-5 to 0°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 Olean, not a forecast for this year.
What to do before the first frost
Zone 6b around Olean 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.
Why 04/07 isn't a guarantee
04/07 is the middle of 30 years of NOAA records, not a promise. Plant by 03/22 and you're betting against frost in roughly 9 years out of 10. 04/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Olean compares
About 208 days separate Olean's last and first frost, putting it 15,773 of 40,283 ZIP codes nationally. Within MO, it ranks 191 of 1,129.
Learn more
local microclimates explains what one yard in Olean can differ from the 65064 normal, and zone vs. frost date explains why Zone 6b and Olean's frost date answer different questions.