Lawrence, KS 66044 Frost Dates
Lawrence, KS: when does the frost end?
Typically, the last spring freeze lands around 04/21, roughly 236 days out. Fall's first freeze usually shows up around 10/17, roughly 177 days after the last spring frost.
Lawrence 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 7 weeks until Lawrence's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/21 isn't a guarantee
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Lawrence against the rest of the dataset
Lawrence's growing season runs about 177 days, ranking 25,975 of 40,283 US ZIP codes measured here, longest to shortest. Within KS, it ranks 572 of 745.
Learn more
Before leaning on 66044's figures: local microclimates explains what one yard in Lawrence can differ from the 66044 normal, while zone vs. frost date explains why Zone 6b and Lawrence's frost date answer different questions.