Pueblo, CO 81010 Frost Dates
Pueblo, CO: when does the frost end?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/09, roughly 161 days after the last spring frost.
Pueblo 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
With roughly 6 weeks until Pueblo's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Pueblo against the rest of the dataset
At roughly 161 frost-free days, Pueblo places 31,931 of 40,283 ZIP codes in this dataset. Within CO, it ranks 79 of 624.
Learn more
Before leaning on 81010's figures: the frost range explains how to read the range around Pueblo's dates instead of trusting one, while local microclimates explains what one yard in Pueblo can differ from the 81010 normal.