Lenexa, KS 66219 Frost Dates
Lenexa, KS: when does the frost end?
Typically, the last spring freeze lands around 04/10, roughly 225 days out. Fall's first freeze usually shows up around 10/29, roughly 202 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Lenexa in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's 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.
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
About 202 days separate Lenexa's last and first frost, putting it 17,109 of 40,283 ZIP codes nationally. Within KS, it ranks 85 of 745.
Learn more
Before leaning on 66219's figures: local microclimates explains what one yard in Lenexa can differ from the 66219 normal, while zone vs. frost date explains why Zone 6b and Lenexa's frost date answer different questions.