Topeka, KS 66667 Frost Dates
Topeka, KS: when does the frost end?
The last spring frost here typically falls around 04/16, about 231 days from today. Fall's first freeze usually shows up around 10/22, roughly 189 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Topeka 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 8 weeks until Topeka's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/16 isn't a guarantee
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
About 189 days separate Topeka's last and first frost, putting it 21,381 of 40,283 ZIP codes nationally. Within KS, it ranks 322 of 745.
Learn more
Before leaning on 66667's figures: local microclimates explains what one yard in Topeka can differ from the 66667 normal, while zone vs. frost date explains why Zone 6b and Topeka's frost date answer different questions.