Whitewater, MO 63785 Frost Dates
63785, near Whitewater, MO: the frost window
Around 04/12 is the usual last spring frost, about 227 days away. Fall's first freeze usually shows up around 10/23, roughly 193 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Whitewater in Zone 7a (0 to 5°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
Whitewater's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/28 and only about 1 year in 10 sees frost after that.
Whitewater against the rest of the dataset
About 193 days separate Whitewater's last and first frost, putting it 20,092 of 40,283 ZIP codes nationally. Within MO, it ranks 689 of 1,129.
Learn more
Two guides worth reading on 63785: the frost range, on how to read the range around Whitewater's dates instead of trusting one, and local microclimates, on what one yard in Whitewater can differ from the 63785 normal.