Grenville, NM 88422 Frost Dates
88422, near Grenville, NM: the frost window
Typically, the last spring freeze lands around 05/05, roughly 250 days out. Fall's first freeze usually shows up around 10/09, roughly 156 days after the last spring frost.
Grenville sits in USDA Zone 6a (-10 to -5°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.
Stretching the season past the first frost
Grenville's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Grenville's last frost
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Grenville against the rest of the dataset
About 156 days separate Grenville's last and first frost, putting it 33,895 of 40,283 ZIP codes nationally. Within NM, it ranks 254 of 427.
Learn more
Two guides worth reading on 88422: the frost range, on how to read the range around Grenville's dates instead of trusting one, and local microclimates, on what one yard in Grenville can differ from the 88422 normal.