Silver Lake, KS 66615 Frost Dates
66615, near Silver Lake, KS: the frost window
Typically, the last spring freeze lands around 04/16, roughly 231 days out. Fall's first freeze usually shows up around 10/22, roughly 189 days after the last spring frost.
Silver Lake 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
Silver Lake'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 Silver Lake's last frost
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.
Silver Lake against the rest of the dataset
About 189 days separate Silver Lake's last and first frost, putting it 21,630 of 40,283 ZIP codes nationally. Within KS, it ranks 336 of 745.
Learn more
Two guides worth reading on 66615: local microclimates, on what one yard in Silver Lake can differ from the 66615 normal, and zone vs. frost date, on why Zone 6b and Silver Lake's frost date answer different questions.