Centennial, CO 80112 Frost Dates
Centennial, CO: when does the frost end?
Around 05/05 is the usual last spring frost, about 250 days away. Fall's first freeze usually shows up around 10/08, roughly 154 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Centennial in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 6 weeks until Centennial's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Centennial's last frost
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Centennial against the rest of the dataset
About 154 days separate Centennial's last and first frost, putting it 34,199 of 40,283 ZIP codes nationally. Within CO, it ranks 259 of 624.
Learn more
Before leaning on 80112's figures: zone vs. frost date explains why Zone 6a and Centennial's frost date answer different questions, while the frost range explains how to read the range around Centennial's dates instead of trusting one.