Avon, CO 81632 Frost Dates
When can you plant in Avon, CO?
Around 06/21 is the usual last spring frost, about 297 days away. The first fall frost typically arrives around 09/07, about 77 frost-free days later.
Avon sits in USDA Zone 5b (-15 to -10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 1 week of growing season left in Avon before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Avon's last frost
06/21 is the middle of 30 years of NOAA records, not a promise. Plant by 06/08 and you're betting against frost in roughly 9 years out of 10. 07/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Avon compares
Avon's growing season runs about 77 days, ranking 40,067 of 40,283 US ZIP codes measured here, longest to shortest. Within CO, it ranks 570 of 624.
Learn more
the frost range covers how to read the range around Avon's dates instead of trusting one. local microclimates covers what one yard in Avon can differ from the 81632 normal.