Colorado Springs, CO 80920 Frost Dates
80920, near Colorado Springs, CO: the frost window
The last spring frost here typically falls around 05/09, about 254 days from today. Fall's first freeze usually shows up around 10/06, roughly 150 days after the last spring frost.
Colorado Springs sits in USDA Zone 5b (-15 to -10°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
05/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Colorado Springs against the rest of the dataset
About 150 days separate Colorado Springs's last and first frost, putting it 35,229 of 40,283 ZIP codes nationally. Within CO, it ranks 328 of 624.
Learn more
Two guides worth reading on 80920: local microclimates, on what one yard in Colorado Springs can differ from the 80920 normal, and zone vs. frost date, on why Zone 5b and Colorado Springs's frost date answer different questions.