Festus, MO 63047 Frost Dates
When can you plant in Festus, MO?
Around 04/09 is the usual last spring frost, about 224 days away. The first fall frost typically arrives around 10/26, about 197 frost-free days later.
Festus sits in USDA Zone 7a (0 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 8 weeks of growing season left in Festus before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Festus's last frost
04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/25 and you're betting against frost in roughly 9 years out of 10. 04/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Festus compares
Festus's growing season runs about 197 days, ranking 18,639 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 533 of 1,129.
Learn more
local microclimates covers what one yard in Festus can differ from the 63047 normal. zone vs. frost date covers why Zone 7a and Festus's frost date answer different questions.