Pueblo, CO 81006 Frost Dates
When can you plant in Pueblo, CO?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. The first fall frost typically arrives around 10/09, about 161 frost-free days later.
Zone 6a (-10 to -5°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 Pueblo, not a forecast for this year.
What to do before the first frost
About 6 weeks of growing season left in Pueblo before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/18 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Pueblo compares
Pueblo's growing season runs about 161 days, ranking 31,928 of 40,283 US ZIP codes measured here, longest to shortest. Within CO, it ranks 76 of 624.
Learn more
the frost range covers how to read the range around Pueblo's dates instead of trusting one. local microclimates covers what one yard in Pueblo can differ from the 81006 normal.