Osage Beach, MO 65065 Frost Dates
65065, near Osage Beach, MO: the frost window
Around 03/31 is the usual last spring frost, about 215 days away. Fall's first freeze usually shows up around 11/03, roughly 216 days after the last spring frost.
Zone 7a (0 to 5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Osage Beach, not a forecast for this year.
Stretching the season past the first frost
Osage Beach's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/31 isn't a guarantee
03/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Osage Beach against the rest of the dataset
Osage Beach's growing season runs about 216 days, ranking 13,771 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 95 of 1,129.
Learn more
Two guides worth reading on 65065: zone vs. frost date, on why Zone 7a and Osage Beach's frost date answer different questions, and the frost range, on how to read the range around Osage Beach's dates instead of trusting one.