Andover, KS 67230 Frost Dates
67230, near Andover, KS: the frost window
Typically, the last spring freeze lands around 04/10, roughly 225 days out. Fall's first freeze usually shows up around 10/27, roughly 198 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Andover in Zone 7a (0 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
Andover'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 Andover's last frost
04/10 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 04/27 and only about 1 year in 10 sees frost after that.
Andover against the rest of the dataset
Andover's growing season runs about 198 days, ranking 18,360 of 40,283 US ZIP codes measured here, longest to shortest. Within KS, it ranks 177 of 745.
Learn more
Two guides worth reading on 67230: the frost range, on how to read the range around Andover's dates instead of trusting one, and local microclimates, on what one yard in Andover can differ from the 67230 normal.