Rangely, CO 81648 Frost Dates
Rangely, CO: when does the frost end?
The last spring frost here typically falls around 05/15, about 260 days from today. Fall's first freeze usually shows up around 10/01, roughly 136 days after the last spring frost.
Rangely 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.
Stretching the season past the first frost
With roughly 5 weeks until Rangely's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Rangely's last frost
05/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/02 and only about 1 year in 10 sees frost after that.
Rangely against the rest of the dataset
At roughly 136 frost-free days, Rangely places 37,698 of 40,283 ZIP codes in this dataset. Within CO, it ranks 417 of 624.
Learn more
Before leaning on 81648's figures: zone vs. frost date explains why Zone 6a and Rangely's frost date answer different questions, while the frost range explains how to read the range around Rangely's dates instead of trusting one.