Colorado Springs, CO 80906 Frost Dates
80906, near Colorado Springs, CO: the frost window
Typically, the last spring freeze lands around 05/03, roughly 248 days out. Fall's first freeze usually shows up around 10/08, roughly 158 days after the last spring frost.
Zone 6a (-10 to -5°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 Colorado Springs, not a forecast for this year.
Stretching the season past the first frost
Colorado Springs's growing season runs out in roughly 6 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 Colorado Springs's last frost
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Colorado Springs against the rest of the dataset
About 158 days separate Colorado Springs's last and first frost, putting it 32,820 of 40,283 ZIP codes nationally. Within CO, it ranks 135 of 624.
Learn more
Two guides worth reading on 80906: zone vs. frost date, on why Zone 6a and Colorado Springs's frost date answer different questions, and the frost range, on how to read the range around Colorado Springs's dates instead of trusting one.