Monroe City, MO 63463 Frost Dates
When can you plant in Monroe City, MO?
Typically, the last spring freeze lands around 04/12, roughly 227 days out. The first fall frost typically arrives around 10/22, about 190 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 Monroe City, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Monroe City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/12 isn't a guarantee
04/12 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 04/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Monroe City compares
About 190 days separate Monroe City's last and first frost, putting it 21,172 of 40,283 ZIP codes nationally. Within MO, it ranks 772 of 1,129.
Learn more
local microclimates covers what one yard in Monroe City can differ from the 63463 normal. zone vs. frost date covers why Zone 6a and Monroe City's frost date answer different questions.