FrostDateCheck

Lake City, CO 81220 Frost Dates

When can you plant in Lake City, CO?

Zone 5b

Typically, the last spring freeze lands around 06/20, roughly 296 days out. The first fall frost typically arrives around 09/10, about 81 frost-free days later.

The USDA Plant Hardiness Zone Map puts Lake City in Zone 5b (-15 to -10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

What to do before the first frost

About 2 weeks of growing season left in Lake City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Lake City's last frost

06/20 is the middle of 30 years of NOAA records, not a promise. Plant by 06/04 and you're betting against frost in roughly 9 years out of 10. 07/07 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Lake City compares

About 81 days separate Lake City's last and first frost, putting it 40,041 of 40,283 ZIP codes nationally. Within CO, it ranks 566 of 624.

Learn more

zone vs. frost date covers why Zone 5b and Lake City's frost date answer different questions. the frost range covers how to read the range around Lake City's dates instead of trusting one.