Penermon, MO 63850 Frost Dates
When can you plant in Penermon, MO?
Typically, the last spring freeze lands around 03/26, roughly 210 days out. The first fall frost typically arrives around 11/06, about 225 frost-free days later.
Penermon sits in USDA Zone 7b (5 to 10°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 10 weeks of growing season left in Penermon before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/26 isn't a guarantee
03/26 is the middle of 30 years of NOAA records, not a promise. Plant by 03/08 and you're betting against frost in roughly 9 years out of 10. 04/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Penermon compares
Penermon's growing season runs about 225 days, ranking 11,521 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 25 of 1,129.
Learn more
the frost range covers how to read the range around Penermon's dates instead of trusting one. local microclimates covers what one yard in Penermon can differ from the 63850 normal.