Glenwood, MO 63541 Frost Dates
When can you plant in Glenwood, MO?
Around 04/16 is the usual last spring frost, about 231 days away. The first fall frost typically arrives around 10/22, about 188 frost-free days later.
The USDA Plant Hardiness Zone Map puts Glenwood in Zone 5b (-15 to -10°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 8 weeks of growing season left in Glenwood before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/16 isn't a guarantee
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/01 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Glenwood compares
At roughly 188 frost-free days, Glenwood places 22,222 of 40,283 ZIP codes in this dataset. Within MO, it ranks 822 of 1,129.
Learn more
the frost range covers how to read the range around Glenwood's dates instead of trusting one. local microclimates covers what one yard in Glenwood can differ from the 63541 normal.