Breckenridge, CO 80424 Frost Dates
80424, near Breckenridge, CO: the frost window
The NOAA station nearest to 80424 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).
Breckenridge against the rest of the dataset
Breckenridge's growing season runs about 41 days, ranking 40,246 of 40,283 US ZIP codes measured here, longest to shortest. Within CO, it ranks 610 of 624.
Learn more
Two guides worth reading on 80424: the methodology, on exactly which NOAA and USDA figures feed 80424's numbers, and zone vs. frost date, on why Zone 5a and Breckenridge's frost date answer different questions.