Bennett, CO 80035 Frost Dates
When can you plant in Bennett, CO?
Typically, the last spring freeze lands around 05/05, roughly 250 days out. The first fall frost typically arrives around 10/09, about 156 frost-free days later.
Bennett 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 Bennett before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/05 isn't a guarantee
05/05 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bennett compares
At roughly 156 frost-free days, Bennett places 33,588 of 40,283 ZIP codes in this dataset. Within CO, it ranks 201 of 624.
Learn more
the frost range covers how to read the range around Bennett's dates instead of trusting one. local microclimates covers what one yard in Bennett can differ from the 80035 normal.