Ophir, CO 81426 Frost Dates
81426, near Ophir, CO: the frost window
The NOAA station nearest to 81426 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 5b (-15 to -10°F average annual minimum).
Ophir against the rest of the dataset
At roughly 60 frost-free days, Ophir places 40,186 of 40,283 ZIP codes in this dataset. Within CO, it ranks 592 of 624.
Learn more
Two guides worth reading on 81426: local microclimates, on what one yard in Ophir can differ from the 81426 normal, and the methodology, on exactly which NOAA and USDA figures feed 81426's numbers.