Cimarron, NM 87714 Frost Dates
87714, near Cimarron, NM: the frost window
Typically, the last spring freeze lands around 05/11, roughly 256 days out. Fall's first freeze usually shows up around 10/03, roughly 143 days after the last spring frost.
Zone 6a (-10 to -5°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 Cimarron, not a forecast for this year.
Stretching the season past the first frost
Cimarron's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/25 and only about 1 year in 10 sees frost after that.
Cimarron against the rest of the dataset
At roughly 143 frost-free days, Cimarron places 36,569 of 40,283 ZIP codes in this dataset. Within NM, it ranks 317 of 427.
Learn more
Two guides worth reading on 87714: the frost range, on how to read the range around Cimarron's dates instead of trusting one, and local microclimates, on what one yard in Cimarron can differ from the 87714 normal.