Mancos, CO 81328 Frost Dates
Mancos, CO: when does the frost end?
Around 06/04 is the usual last spring frost, about 280 days away. Fall's first freeze usually shows up around 09/24, roughly 111 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Mancos 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 4 weeks until Mancos's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
06/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/19 and only about 1 year in 10 sees frost after that.
Mancos against the rest of the dataset
About 111 days separate Mancos's last and first frost, putting it 39,468 of 40,283 ZIP codes nationally. Within CO, it ranks 506 of 624.
Learn more
Before leaning on 81328's figures: zone vs. frost date explains why Zone 6a and Mancos's frost date answer different questions, while the frost range explains how to read the range around Mancos's dates instead of trusting one.