Glenwood, MO 63535 Frost Dates
Glenwood, MO: when does the frost end?
Typically, the last spring freeze lands around 04/16, roughly 231 days out. Fall's first freeze usually shows up around 10/22, roughly 188 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 8 weeks until Glenwood's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
Glenwood against the rest of the dataset
Glenwood's growing season runs about 188 days, ranking 22,221 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 821 of 1,129.
Learn more
Before leaning on 63535's figures: the frost range explains how to read the range around Glenwood's dates instead of trusting one, while local microclimates explains what one yard in Glenwood can differ from the 63535 normal.