De Witt, MO 64639 Frost Dates
When can you plant in De Witt, MO?
Around 04/10 is the usual last spring frost, about 225 days away. The first fall frost typically arrives around 10/29, about 201 frost-free days later.
De Witt sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 9 weeks of growing season left in De Witt before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/10 is the middle of 30 years of NOAA records, not a promise. Plant by 03/24 and you're betting against frost in roughly 9 years out of 10. 04/26 is the safer bet, historically only a 1-in-10 chance of frost that late.
How De Witt compares
At roughly 201 frost-free days, De Witt places 17,692 of 40,283 ZIP codes in this dataset. Within MO, it ranks 385 of 1,129.
Learn more
the frost range covers how to read the range around De Witt's dates instead of trusting one. local microclimates covers what one yard in De Witt can differ from the 64639 normal.