Pitkin, CO 81210 Frost Dates
81210, near Pitkin, CO: the frost window
The NOAA station nearest to 81210 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 5a (-20 to -15°F average annual minimum).
Pitkin against the rest of the dataset
Pitkin's growing season runs about 47 days, ranking 40,232 of 40,283 US ZIP codes measured here, longest to shortest. Within CO, it ranks 607 of 624.
Learn more
Two guides worth reading on 81210: local microclimates, on what one yard in Pitkin can differ from the 81210 normal, and the methodology, on exactly which NOAA and USDA figures feed 81210's numbers.