Federal Heights, CO 80031 Frost Dates
When can you plant in Federal Heights, CO?
The last spring frost here typically falls around 05/02, about 247 days from today. The first fall frost typically arrives around 10/11, about 160 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 Federal Heights, not a forecast for this year.
What to do before the first frost
About 6 weeks of growing season left in Federal Heights before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/02 isn't a guarantee
05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/18 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Federal Heights compares
At roughly 160 frost-free days, Federal Heights places 32,255 of 40,283 ZIP codes in this dataset. Within CO, it ranks 96 of 624.
Learn more
local microclimates covers what one yard in Federal Heights can differ from the 80031 normal. zone vs. frost date covers why Zone 6a and Federal Heights's frost date answer different questions.