Olpe, KS 66865 Frost Dates
66865, near Olpe, KS: the frost window
Typically, the last spring freeze lands around 04/12, roughly 227 days out. Fall's first freeze usually shows up around 10/23, roughly 193 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 Olpe, not a forecast for this year.
Stretching the season past the first frost
Olpe'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.
The actual range around Olpe's last frost
04/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/29 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.
Olpe against the rest of the dataset
About 193 days separate Olpe's last and first frost, putting it 20,049 of 40,283 ZIP codes nationally. Within KS, it ranks 248 of 745.
Learn more
Two guides worth reading on 66865: the frost range, on how to read the range around Olpe's dates instead of trusting one, and local microclimates, on what one yard in Olpe can differ from the 66865 normal.