Jacksonville, MO 65247 Frost Dates
Jacksonville, MO: when does the frost end?
The last spring frost here typically falls around 04/08, about 223 days from today. Fall's first freeze usually shows up around 10/28, roughly 201 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Jacksonville 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
With roughly 9 weeks until Jacksonville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
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 03/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/24 and only about 1 year in 10 sees frost after that.
Jacksonville against the rest of the dataset
About 201 days separate Jacksonville's last and first frost, putting it 17,684 of 40,283 ZIP codes nationally. Within MO, it ranks 383 of 1,129.
Learn more
Before leaning on 65247's figures: local microclimates explains what one yard in Jacksonville can differ from the 65247 normal, while zone vs. frost date explains why Zone 6a and Jacksonville's frost date answer different questions.