Mound City, MO 64470 Frost Dates
Frost dates for Mound City, MO, ZIP 64470
Around 04/16 is the usual last spring frost, about 231 days away. The first fall frost typically arrives around 10/20, about 186 frost-free days later.
Zone 6a (-10 to -5°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 Mound City, not a forecast for this year.
What to do before the first frost
Zone 6a around Mound City 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 Mound City'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 Mound City compares
At roughly 186 frost-free days, Mound City places 22,884 of 40,283 ZIP codes in this dataset. Within MO, it ranks 880 of 1,129.
Learn more
local microclimates explains what one yard in Mound City can differ from the 64470 normal, and zone vs. frost date explains why Zone 6a and Mound City's frost date answer different questions.