Colorado Springs, CO 80937 Frost Dates
80937, 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.
Colorado Springs 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
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
At roughly 158 frost-free days, Colorado Springs places 32,832 of 40,283 ZIP codes in this dataset. Within CO, it ranks 147 of 624.
Learn more
Two guides worth reading on 80937: 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.