Lucas, KS 67648 Frost Dates
67648, near Lucas, KS: the frost window
The last spring frost here typically falls around 04/21, about 236 days from today. Fall's first freeze usually shows up around 10/17, roughly 179 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 Lucas, not a forecast for this year.
Stretching the season past the first frost
Lucas'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 04/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/02 and only about 1 year in 10 sees frost after that.
Lucas against the rest of the dataset
Lucas's growing season runs about 179 days, ranking 25,477 of 40,283 US ZIP codes measured here, longest to shortest. Within KS, it ranks 559 of 745.
Learn more
Two guides worth reading on 67648: local microclimates, on what one yard in Lucas can differ from the 67648 normal, and zone vs. frost date, on why Zone 6b and Lucas's frost date answer different questions.