Red Cliff, CO 81649 Frost Dates
When can you plant in Red Cliff, CO?
The NOAA station nearest to 81649 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).
How Red Cliff compares
About 61 days separate Red Cliff's last and first frost, putting it 40,179 of 40,283 ZIP codes nationally. Within CO, it ranks 589 of 624.
Learn more
the methodology covers exactly which NOAA and USDA figures feed 81649's numbers. zone vs. frost date covers why Zone 5a and Red Cliff's frost date answer different questions.