Wiggins, CO 80653 Frost Dates
When can you plant in Wiggins, CO?
Around 05/06 is the usual last spring frost, about 251 days away. The first fall frost typically arrives around 10/06, about 153 frost-free days later.
Wiggins sits in USDA Zone 5a (-20 to -15°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 Wiggins before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Wiggins's last frost
05/06 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 Wiggins compares
About 153 days separate Wiggins's last and first frost, putting it 34,549 of 40,283 ZIP codes nationally. Within CO, it ranks 278 of 624.
Learn more
zone vs. frost date covers why Zone 5a and Wiggins's frost date answer different questions. the frost range covers how to read the range around Wiggins's dates instead of trusting one.