Topeka, KS 66605 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.
Topeka 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 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 21,365 of 40,283 ZIP codes in this dataset. Within KS, it ranks 306 of 745.
Learn more
Before leaning on 66605's figures: zone vs. frost date explains why Zone 6b and Topeka's frost date answer different questions, while the frost range explains how to read the range around Topeka's dates instead of trusting one.