Agency, MO 64401 Frost Dates
Frost dates for Agency, MO, ZIP 64401
Typically, the last spring freeze lands around 04/19, roughly 234 days out. The first fall frost typically arrives around 10/17, about 180 frost-free days later.
The USDA Plant Hardiness Zone Map puts Agency 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 Agency 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.
Why 04/19 isn't a guarantee
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 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 Agency compares
At roughly 180 frost-free days, Agency places 24,997 of 40,283 ZIP codes in this dataset. Within MO, it ranks 1,019 of 1,129.
Learn more
zone vs. frost date explains why Zone 6a and Agency's frost date answer different questions, and the frost range explains how to read the range around Agency's dates instead of trusting one.