Timnath, CO 80528 Frost Dates
Frost dates for Timnath, CO, ZIP 80528
The last spring frost here typically falls around 05/03, about 248 days from today. The first fall frost typically arrives around 10/06, about 154 frost-free days later.
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.
What to do before the first frost
Zone 5b around Timnath has about 6 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Timnath's last frost
05/03 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Timnath compares
At roughly 154 frost-free days, Timnath places 34,246 of 40,283 ZIP codes in this dataset. Within CO, it ranks 268 of 624.
Learn more
the frost range explains how to read the range around Timnath's dates instead of trusting one, and local microclimates explains what one yard in Timnath can differ from the 80528 normal.