Yampa, CO 80463 Frost Dates
Yampa, CO: when does the frost end?
Around 06/14 is the usual last spring frost, about 290 days away. Fall's first freeze usually shows up around 09/11, roughly 89 days after the last spring frost.
Yampa 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 2 weeks until Yampa's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
06/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 06/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/28 and only about 1 year in 10 sees frost after that.
Yampa against the rest of the dataset
Yampa's growing season runs about 89 days, ranking 39,930 of 40,283 US ZIP codes measured here, longest to shortest. Within CO, it ranks 554 of 624.
Learn more
Before leaning on 80463's figures: the frost range explains how to read the range around Yampa's dates instead of trusting one, while local microclimates explains what one yard in Yampa can differ from the 80463 normal.