Alexandria, MO 63430 Frost Dates
63430, near Alexandria, MO: the frost window
The last spring frost here typically falls around 04/11, about 226 days from today. Fall's first freeze usually shows up around 10/23, roughly 194 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Alexandria in Zone 6a (-10 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
Alexandria'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
04/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Alexandria against the rest of the dataset
At roughly 194 frost-free days, Alexandria places 19,653 of 40,283 ZIP codes in this dataset. Within MO, it ranks 657 of 1,129.
Learn more
Two guides worth reading on 63430: local microclimates, on what one yard in Alexandria can differ from the 63430 normal, and zone vs. frost date, on why Zone 6a and Alexandria's frost date answer different questions.