Shawnee, KS 66226 Frost Dates
66226, near Shawnee, KS: the frost window
The last spring frost here typically falls around 04/16, about 231 days from today. Fall's first freeze usually shows up around 10/22, roughly 188 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 Shawnee, not a forecast for this year.
Stretching the season past the first frost
Shawnee'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.
The actual range around Shawnee's last frost
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/01 and only about 1 year in 10 sees frost after that.
Shawnee against the rest of the dataset
Shawnee's growing season runs about 188 days, ranking 21,821 of 40,283 US ZIP codes measured here, longest to shortest. Within KS, it ranks 350 of 745.
Learn more
Two guides worth reading on 66226: local microclimates, on what one yard in Shawnee can differ from the 66226 normal, and zone vs. frost date, on why Zone 6b and Shawnee's frost date answer different questions.