Nortonville, KS 66016 Frost Dates
66016, near Nortonville, KS: the frost window
Around 04/16 is the usual last spring frost, about 231 days away. Fall's first freeze usually shows up around 10/22, roughly 188 days after the last spring frost.
Nortonville 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.
Stretching the season past the first frost
Nortonville's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
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 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Nortonville against the rest of the dataset
About 188 days separate Nortonville's last and first frost, putting it 22,154 of 40,283 ZIP codes nationally. Within KS, it ranks 359 of 745.
Learn more
Two guides worth reading on 66016: zone vs. frost date, on why Zone 6a and Nortonville's frost date answer different questions, and the frost range, on how to read the range around Nortonville's dates instead of trusting one.