Dacono, CO 80514 Frost Dates
When can you plant in Dacono, CO?
Around 05/03 is the usual last spring frost, about 248 days away. The first fall frost typically arrives around 10/07, about 155 frost-free days later.
Zone 5b (-15 to -10°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 Dacono, not a forecast for this year.
What to do before the first frost
About 6 weeks of growing season left in Dacono before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/03 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. 05/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dacono compares
At roughly 155 frost-free days, Dacono places 33,947 of 40,283 ZIP codes in this dataset. Within CO, it ranks 248 of 624.
Learn more
the frost range covers how to read the range around Dacono's dates instead of trusting one. local microclimates covers what one yard in Dacono can differ from the 80514 normal.