Wiggins, CO 80654 Frost Dates
Wiggins, CO: when does the frost end?
Typically, the last spring freeze lands around 05/06, roughly 251 days out. Fall's first freeze usually shows up around 10/06, roughly 153 days after the last spring frost.
Zone 5a (-20 to -15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Wiggins, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until Wiggins's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Wiggins's last frost
05/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/19 and only about 1 year in 10 sees frost after that.
Wiggins against the rest of the dataset
At roughly 153 frost-free days, Wiggins places 34,550 of 40,283 ZIP codes in this dataset. Within CO, it ranks 279 of 624.
Learn more
Before leaning on 80654's figures: zone vs. frost date explains why Zone 5a and Wiggins's frost date answer different questions, while the frost range explains how to read the range around Wiggins's dates instead of trusting one.