Shelbina, MO 63468 Frost Dates
Shelbina, MO: when does the frost end?
Around 04/21 is the usual last spring frost, about 236 days away. Fall's first freeze usually shows up around 10/17, roughly 177 days after the last spring frost.
Zone 6a (-10 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 Shelbina, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Shelbina's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/21 isn't a guarantee
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Shelbina against the rest of the dataset
At roughly 177 frost-free days, Shelbina places 26,162 of 40,283 ZIP codes in this dataset. Within MO, it ranks 1,045 of 1,129.
Learn more
Before leaning on 63468's figures: local microclimates explains what one yard in Shelbina can differ from the 63468 normal, while zone vs. frost date explains why Zone 6a and Shelbina's frost date answer different questions.