Vienna, MO 65582 Frost Dates
65582, near Vienna, MO: the frost window
Around 04/08 is the usual last spring frost, about 223 days away. Fall's first freeze usually shows up around 10/26, roughly 200 days after the last spring frost.
Vienna sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Vienna'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.
Why 04/08 isn't a guarantee
04/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/27 and only about 1 year in 10 sees frost after that.
Vienna against the rest of the dataset
At roughly 200 frost-free days, Vienna places 17,872 of 40,283 ZIP codes in this dataset. Within MO, it ranks 399 of 1,129.
Learn more
Two guides worth reading on 65582: local microclimates, on what one yard in Vienna can differ from the 65582 normal, and zone vs. frost date, on why Zone 6b and Vienna's frost date answer different questions.