La Jara, CO 81124 Frost Dates
Frost dates for La Jara, CO, ZIP 81124
Typically, the last spring freeze lands around 06/06, roughly 282 days out. The first fall frost typically arrives around 09/15, about 100 frost-free days later.
La Jara 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
Zone 5a around La Jara has about 3 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around La Jara's last frost
06/06 is the middle of 30 years of NOAA records, not a promise. Plant by 05/24 and you're betting against frost in roughly 9 years out of 10. 06/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How La Jara compares
La Jara's growing season runs about 100 days, ranking 39,719 of 40,283 US ZIP codes measured here, longest to shortest. Within CO, it ranks 532 of 624.
Learn more
the frost range explains how to read the range around La Jara's dates instead of trusting one, and local microclimates explains what one yard in La Jara can differ from the 81124 normal.