Oregon, MO 64473 Frost Dates
Frost dates for Oregon, MO, ZIP 64473
The last spring frost here typically falls around 04/16, about 231 days from today. The first fall frost typically arrives around 10/20, about 186 frost-free days later.
The USDA Plant Hardiness Zone Map puts Oregon 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 Oregon 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 Oregon's last frost
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Oregon compares
Oregon's growing season runs about 186 days, ranking 22,891 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 881 of 1,129.
Learn more
local microclimates explains what one yard in Oregon can differ from the 64473 normal, and zone vs. frost date explains why Zone 6a and Oregon's frost date answer different questions.