New Madrid, MO 63869 Frost Dates
Frost dates for New Madrid, MO, ZIP 63869
Around 03/28 is the usual last spring frost, about 212 days away. The first fall frost typically arrives around 11/03, about 220 frost-free days later.
Zone 7b (5 to 10°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 New Madrid, not a forecast for this year.
What to do before the first frost
Zone 7b around New Madrid has about 10 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.
How much risk comes with planting early here
03/28 is the middle of 30 years of NOAA records, not a promise. Plant by 03/11 and you're betting against frost in roughly 9 years out of 10. 04/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Madrid compares
New Madrid's growing season runs about 220 days, ranking 12,818 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 41 of 1,129.
Learn more
the frost range explains how to read the range around New Madrid's dates instead of trusting one, and local microclimates explains what one yard in New Madrid can differ from the 63869 normal.