Harwood, MO 64750 Frost Dates
Frost dates for Harwood, MO, ZIP 64750
Typically, the last spring freeze lands around 04/08, roughly 223 days out. The first fall frost typically arrives around 10/29, about 199 frost-free days later.
The USDA Plant Hardiness Zone Map puts Harwood in Zone 6b (-5 to 0°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 6b around Harwood 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 04/08 isn't a guarantee
04/08 is the middle of 30 years of NOAA records, not a promise. Plant by 03/23 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 Harwood compares
About 199 days separate Harwood's last and first frost, putting it 18,245 of 40,283 ZIP codes nationally. Within MO, it ranks 463 of 1,129.
Learn more
the frost range explains how to read the range around Harwood's dates instead of trusting one, and local microclimates explains what one yard in Harwood can differ from the 64750 normal.