Topeka, KS 66616 Frost Dates
Topeka, KS: when does the frost end?
Around 04/16 is the usual last spring frost, about 231 days away. Fall's first freeze usually shows up around 10/22, roughly 189 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 Topeka, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Topeka'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
04/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/27 and only about 1 year in 10 sees frost after that.
Topeka against the rest of the dataset
At roughly 189 frost-free days, Topeka places 21,370 of 40,283 ZIP codes in this dataset. Within KS, it ranks 311 of 745.
Learn more
Before leaning on 66616's figures: local microclimates explains what one yard in Topeka can differ from the 66616 normal, while zone vs. frost date explains why Zone 6b and Topeka's frost date answer different questions.