Rye, CO 81069 Frost Dates
When can you plant in Rye, CO?
Typically, the last spring freeze lands around 05/05, roughly 250 days out. The first fall frost typically arrives around 10/10, about 156 frost-free days later.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Rye, not a forecast for this year.
What to do before the first frost
About 6 weeks of growing season left in Rye before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Rye's last frost
05/05 is the middle of 30 years of NOAA records, not a promise. Plant by 04/22 and you're betting against frost in roughly 9 years out of 10. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rye compares
At roughly 156 frost-free days, Rye places 33,851 of 40,283 ZIP codes in this dataset. Within CO, it ranks 234 of 624.
Learn more
the frost range covers how to read the range around Rye's dates instead of trusting one. local microclimates covers what one yard in Rye can differ from the 81069 normal.