Hutchinson, KS 67502 Frost Dates
67502, near Hutchinson, KS: the frost window
Typically, the last spring freeze lands around 04/21, roughly 236 days out. Fall's first freeze usually shows up around 10/18, roughly 180 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hutchinson in Zone 6b (-5 to 0°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
Hutchinson's growing season runs out in roughly 7 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
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/04 and only about 1 year in 10 sees frost after that.
Hutchinson against the rest of the dataset
At roughly 180 frost-free days, Hutchinson places 24,781 of 40,283 ZIP codes in this dataset. Within KS, it ranks 504 of 745.
Learn more
Two guides worth reading on 67502: local microclimates, on what one yard in Hutchinson can differ from the 67502 normal, and zone vs. frost date, on why Zone 6b and Hutchinson's frost date answer different questions.