Deerfield, MO 64741 Frost Dates
Frost dates for Deerfield, MO, ZIP 64741
Around 04/05 is the usual last spring frost, about 220 days away. The first fall frost typically arrives around 10/28, about 204 frost-free days later.
Deerfield sits in USDA Zone 6b (-5 to 0°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
Zone 6b around Deerfield 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.
The actual range around Deerfield's last frost
04/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/21 and you're betting against frost in roughly 9 years out of 10. 04/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Deerfield compares
Deerfield's growing season runs about 204 days, ranking 16,812 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 322 of 1,129.
Learn more
local microclimates explains what one yard in Deerfield can differ from the 64741 normal, and zone vs. frost date explains why Zone 6b and Deerfield's frost date answer different questions.