Deer Trail, CO 80101 Frost Dates
Deer Trail, CO: when does the frost end?
The last spring frost here typically falls around 05/12, about 257 days from today. Fall's first freeze usually shows up around 10/02, roughly 141 days after the last spring frost.
Deer Trail 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.
Stretching the season past the first frost
With roughly 5 weeks until Deer Trail's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/12 isn't a guarantee
05/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/26 and only about 1 year in 10 sees frost after that.
Deer Trail against the rest of the dataset
About 141 days separate Deer Trail's last and first frost, putting it 36,919 of 40,283 ZIP codes nationally. Within CO, it ranks 400 of 624.
Learn more
Before leaning on 80101's figures: zone vs. frost date explains why Zone 5b and Deer Trail's frost date answer different questions, while the frost range explains how to read the range around Deer Trail's dates instead of trusting one.