Lenexa, KS 66220 Frost Dates
Lenexa, KS: when does the frost end?
The last spring frost here typically falls around 04/10, about 225 days from today. Fall's first freeze usually shows up around 10/29, roughly 202 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 Lenexa, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until Lenexa's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/24 and only about 1 year in 10 sees frost after that.
Lenexa against the rest of the dataset
At roughly 202 frost-free days, Lenexa places 17,110 of 40,283 ZIP codes in this dataset. Within KS, it ranks 86 of 745.
Learn more
Before leaning on 66220's figures: the frost range explains how to read the range around Lenexa's dates instead of trusting one, while local microclimates explains what one yard in Lenexa can differ from the 66220 normal.