Waterville, KS 66548 Frost Dates
When can you plant in Waterville, KS?
Typically, the last spring freeze lands around 04/25, roughly 240 days out. The first fall frost typically arrives around 10/13, about 171 frost-free days later.
Waterville sits in USDA Zone 6a (-10 to -5°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.
What to do before the first frost
About 7 weeks of growing season left in Waterville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Waterville's last frost
04/25 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Waterville compares
At roughly 171 frost-free days, Waterville places 28,769 of 40,283 ZIP codes in this dataset. Within KS, it ranks 656 of 745.
Learn more
local microclimates covers what one yard in Waterville can differ from the 66548 normal. zone vs. frost date covers why Zone 6a and Waterville's frost date answer different questions.