Frost dates in New Mexico
Across New Mexico, the typical last spring frost is around May 2 and the first fall frost around Oct 16. Your own dates depend on where you are in the state; find your county below.
Most of the state's last spring frosts fall between Mar 29 and May 29, and its first fall frosts between Sep 27 and Nov 7.
These are the dates with a 50% chance of a 32°F frost on or after (spring) or on or before (fall), so plan tender crops a week or two after the spring date and keep row cover handy. For dates at your exact ZIP code, use the zone and frost date lookup; for what to plant when, see the planting guide by frost date.
Hardiness zones in New Mexico: zone 5a, zone 5b, zone 6a, zone 6b, zone 7a, zone 7b, zone 8a, zone 8b
Frost dates by county in New Mexico
| County | Last spring frost | First fall frost | Growing season |
|---|---|---|---|
| Bernalillo | Apr 21 | Oct 24 | About 186 days |
| Catron | May 30 | Oct 3 | About 126 days |
| Chaves | Apr 11 | Oct 29 | About 201 days |
| Cibola | May 17 | Oct 4 | About 140 days |
| Colfax | May 17 | Oct 1 | About 137 days |
| Curry | Apr 17 | Oct 26 | About 192 days |
| De Baca | Apr 18 | Oct 26 | About 191 days |
| Doña Ana | Mar 12 | Nov 13 | About 246 days |
| Eddy | Apr 6 | Nov 2 | About 210 days |
| Grant | Apr 21 | Oct 31 | About 193 days |
| Guadalupe | Apr 21 | Oct 21 | About 183 days |
| Harding | Apr 30 | Oct 15 | About 168 days |
| Hidalgo | Apr 23 | Oct 27 | About 187 days |
| Lea | Apr 4 | Nov 6 | About 216 days |
| Lincoln | May 3 | Oct 12 | About 162 days |
| Los Alamos | May 2 | Oct 12 | About 163 days |
| Luna | Apr 7 | Nov 11 | About 218 days |
| McKinley | May 29 | Sep 28 | About 122 days |
| Mora | May 26 | Sep 26 | About 123 days |
| Otero | Apr 30 | Oct 21 | About 174 days |
| Quay | Apr 18 | Oct 24 | About 189 days |
| Rio Arriba | May 15 | Oct 4 | About 142 days |
| Roosevelt | Apr 21 | Oct 26 | About 188 days |
| San Juan | May 4 | Oct 15 | About 164 days |
| San Miguel | May 10 | Oct 7 | About 150 days |
| Sandoval | Apr 26 | Oct 21 | About 178 days |
| Santa Fe | May 9 | Oct 15 | About 159 days |
| Sierra | Mar 25 | Nov 6 | About 226 days |
| Socorro | Apr 29 | Oct 16 | About 170 days |
| Taos | May 28 | Sep 26 | About 121 days |
| Torrance | May 14 | Oct 6 | About 145 days |
| Union | May 4 | Oct 11 | About 160 days |
| Valencia | Apr 23 | Oct 21 | About 181 days |
Source: NOAA NCEI U.S. Climate Normals 1991–2020, 50% probability of 32°F, from the weather station nearest each ZIP code; each county shows the middle value across its ZIP codes. Hills, valleys and cities can run a week or more earlier or later.