Springfield, MO 65804 Frost Dates
Frost dates for Springfield, MO, ZIP 65804
Typically, the last spring freeze lands around 04/04, roughly 219 days out. The first fall frost typically arrives around 10/27, about 204 frost-free days later.
The USDA Plant Hardiness Zone Map puts Springfield in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 6b around Springfield 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.
Why 04/04 isn't a guarantee
04/04 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. 04/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Springfield compares
At roughly 204 frost-free days, Springfield places 16,453 of 40,283 ZIP codes in this dataset. Within MO, it ranks 277 of 1,129.
Learn more
local microclimates explains what one yard in Springfield can differ from the 65804 normal, and zone vs. frost date explains why Zone 6b and Springfield's frost date answer different questions.