Timnath, CO 80547 Frost Dates
Timnath, CO: when does the frost end?
Typically, the last spring freeze lands around 05/03, roughly 248 days out. Fall's first freeze usually shows up around 10/06, roughly 154 days after the last spring frost.
Zone 5b (-15 to -10°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 Timnath, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until Timnath'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
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Timnath against the rest of the dataset
About 154 days separate Timnath's last and first frost, putting it 34,247 of 40,283 ZIP codes nationally. Within CO, it ranks 269 of 624.
Learn more
Before leaning on 80547's figures: the frost range explains how to read the range around Timnath's dates instead of trusting one, while local microclimates explains what one yard in Timnath can differ from the 80547 normal.