Marionville, MO 65705 Frost Dates
Marionville, MO: when does the frost end?
Around 04/15 is the usual last spring frost, about 230 days away. Fall's first freeze usually shows up around 10/23, roughly 189 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 Marionville, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Marionville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/15 isn't a guarantee
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/02 and only about 1 year in 10 sees frost after that.
Marionville against the rest of the dataset
At roughly 189 frost-free days, Marionville places 21,607 of 40,283 ZIP codes in this dataset. Within MO, it ranks 791 of 1,129.
Learn more
Before leaning on 65705's figures: the frost range explains how to read the range around Marionville's dates instead of trusting one, while local microclimates explains what one yard in Marionville can differ from the 65705 normal.