Walden, CO 80434 Frost Dates
Frost dates for Walden, CO, ZIP 80434
The NOAA station nearest to 80434 does not report a usable frost-date normal for either event, so no last-frost or first-frost figure is shown here. The USDA hardiness zone below is still real: Zone 4b (-25 to -20°F average annual minimum).
How Walden compares
Walden's growing season runs about 31 days, ranking 40,266 of 40,283 US ZIP codes measured here, longest to shortest. Within CO, it ranks 622 of 624.
Learn more
local microclimates explains what one yard in Walden can differ from the 80434 normal, and the methodology explains exactly which NOAA and USDA figures feed 80434's numbers.