Sun City, KS 67143 Frost Dates
67143, near Sun City, KS: the frost window
The last spring frost here typically falls around 04/25, about 240 days from today. Fall's first freeze usually shows up around 10/15, roughly 171 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 Sun City, not a forecast for this year.
Stretching the season past the first frost
Sun City'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.
Why 04/25 isn't a guarantee
04/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Sun City against the rest of the dataset
Sun City's growing season runs about 171 days, ranking 28,860 of 40,283 US ZIP codes measured here, longest to shortest. Within KS, it ranks 666 of 745.
Learn more
Two guides worth reading on 67143: zone vs. frost date, on why Zone 6b and Sun City's frost date answer different questions, and the frost range, on how to read the range around Sun City's dates instead of trusting one.