Federal Heights, CO 80260 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.
Federal Heights sits in USDA Zone 6a (-10 to -5°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 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
Federal Heights's growing season runs about 160 days, ranking 32,258 of 40,283 US ZIP codes measured here, longest to shortest. Within CO, it ranks 99 of 624.
Learn more
zone vs. frost date covers why Zone 6a and Federal Heights's frost date answer different questions. the frost range covers how to read the range around Federal Heights's dates instead of trusting one.