Lewistown, MO 63452 Frost Dates
When can you plant in Lewistown, MO?
The last spring frost here typically falls around 04/17, about 232 days from today. The first fall frost typically arrives around 10/19, about 184 frost-free days later.
The USDA Plant Hardiness Zone Map puts Lewistown in Zone 6a (-10 to -5°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
About 7 weeks of growing season left in Lewistown before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/17 isn't a guarantee
04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lewistown compares
At roughly 184 frost-free days, Lewistown places 23,624 of 40,283 ZIP codes in this dataset. Within MO, it ranks 914 of 1,129.
Learn more
the frost range covers how to read the range around Lewistown's dates instead of trusting one. local microclimates covers what one yard in Lewistown can differ from the 63452 normal.