Durango, CO 81301 Frost Dates
Durango, CO: when does the frost end?
Around 05/21 is the usual last spring frost, about 266 days away. Fall's first freeze usually shows up around 10/02, roughly 134 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Durango 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 5 weeks until Durango's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Durango's last frost
05/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/07 and only about 1 year in 10 sees frost after that.
Durango against the rest of the dataset
About 134 days separate Durango's last and first frost, putting it 37,949 of 40,283 ZIP codes nationally. Within CO, it ranks 431 of 624.
Learn more
Before leaning on 81301's figures: the frost range explains how to read the range around Durango's dates instead of trusting one, while local microclimates explains what one yard in Durango can differ from the 81301 normal.