Lenexa, KS 66215 Frost Dates
Lenexa, KS: when does the frost end?
Around 04/10 is the usual last spring frost, about 225 days away. Fall's first freeze usually shows up around 10/29, roughly 202 days after the last spring frost.
Lenexa sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
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.
Why 04/10 isn't a guarantee
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 17,108 of 40,283 ZIP codes in this dataset. Within KS, it ranks 84 of 745.
Learn more
Before leaning on 66215's figures: zone vs. frost date explains why Zone 6b and Lenexa's frost date answer different questions, while the frost range explains how to read the range around Lenexa's dates instead of trusting one.