Manzanola, CO 81058 Frost Dates
Manzanola, CO: when does the frost end?
Around 05/01 is the usual last spring frost, about 246 days away. Fall's first freeze usually shows up around 10/08, roughly 159 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Manzanola, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until Manzanola's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Manzanola's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Manzanola against the rest of the dataset
About 159 days separate Manzanola's last and first frost, putting it 32,755 of 40,283 ZIP codes nationally. Within CO, it ranks 127 of 624.
Learn more
Before leaning on 81058's figures: the frost range explains how to read the range around Manzanola's dates instead of trusting one, while local microclimates explains what one yard in Manzanola can differ from the 81058 normal.