Kansas City, MO 64125 Frost Dates
64125, near Kansas City, MO: the frost window
Around 04/04 is the usual last spring frost, about 219 days away. Fall's first freeze usually shows up around 11/02, roughly 211 days after the last spring frost.
Zone 6b (-5 to 0°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 Kansas City, not a forecast for this year.
Stretching the season past the first frost
Kansas City's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Kansas City's last frost
04/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/20 and only about 1 year in 10 sees frost after that.
Kansas City against the rest of the dataset
Kansas City's growing season runs about 211 days, ranking 14,702 of 40,283 US ZIP codes measured here, longest to shortest. Within MO, it ranks 158 of 1,129.
Learn more
Two guides worth reading on 64125: zone vs. frost date, on why Zone 6b and Kansas City's frost date answer different questions, and the frost range, on how to read the range around Kansas City's dates instead of trusting one.