Hillsboro, MO 63053 Frost Dates
63053, near Hillsboro, MO: the frost window
Around 04/09 is the usual last spring frost, about 224 days away. Fall's first freeze usually shows up around 10/26, roughly 197 days after the last spring frost.
Zone 7a (0 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 Hillsboro, not a forecast for this year.
Stretching the season past the first frost
Hillsboro'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
04/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/25 and only about 1 year in 10 sees frost after that.
Hillsboro against the rest of the dataset
At roughly 197 frost-free days, Hillsboro places 18,682 of 40,283 ZIP codes in this dataset. Within MO, it ranks 544 of 1,129.
Learn more
Two guides worth reading on 63053: the frost range, on how to read the range around Hillsboro's dates instead of trusting one, and local microclimates, on what one yard in Hillsboro can differ from the 63053 normal.