FrostDateCheck

Santa Rosa, NM 88435 Frost Dates

Frost dates for Santa Rosa, NM, ZIP 88435

Zone 7a

Around 04/20 is the usual last spring frost, about 235 days away. The first fall frost typically arrives around 10/23, about 183 frost-free days later.

The USDA Plant Hardiness Zone Map puts Santa Rosa in Zone 7a (0 to 5°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

Zone 7a around Santa Rosa has about 8 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.

Why 04/20 isn't a guarantee

04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Santa Rosa compares

At roughly 183 frost-free days, Santa Rosa places 23,867 of 40,283 ZIP codes in this dataset. Within NM, it ranks 181 of 427.

Learn more

zone vs. frost date explains why Zone 7a and Santa Rosa's frost date answer different questions, and the frost range explains how to read the range around Santa Rosa's dates instead of trusting one.