Arvada, CO 80007 Frost Dates
Frost dates for Arvada, CO, ZIP 80007
Typically, the last spring freeze lands around 05/03, roughly 248 days out. The first fall frost typically arrives around 10/14, about 161 frost-free days later.
Arvada sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 6a around Arvada has about 7 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 Arvada'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. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Arvada compares
At roughly 161 frost-free days, Arvada places 31,925 of 40,283 ZIP codes in this dataset. Within CO, it ranks 73 of 624.
Learn more
the frost range explains how to read the range around Arvada's dates instead of trusting one, and local microclimates explains what one yard in Arvada can differ from the 80007 normal.