FrostDateCheck

Folsom, NM 88414 Frost Dates

When can you plant in Folsom, NM?

Zone 5b

Typically, the last spring freeze lands around 05/05, roughly 250 days out. The first fall frost typically arrives around 10/09, about 156 frost-free days later.

Zone 5b (-15 to -10°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 Folsom, not a forecast for this year.

What to do before the first frost

About 6 weeks of growing season left in Folsom before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

05/05 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. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Folsom compares

About 156 days separate Folsom's last and first frost, putting it 33,894 of 40,283 ZIP codes nationally. Within NM, it ranks 253 of 427.

Learn more

local microclimates covers what one yard in Folsom can differ from the 88414 normal. zone vs. frost date covers why Zone 5b and Folsom's frost date answer different questions.