Frost Dates for Alamogordo, NM
In Alamogordo, NM, the average last spring frost is around Mar 9 and the average first fall frost around Nov 18, for a growing season of about 251 days. For frost-tender plants, wait until Mar 31, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Alamogordo, NM weather station, 2 miles away, elevation 4,380 ft. Frost can come earlier in low spots and valleys and later near cities and large lakes.
Frost probability by date
Chance of a 32°F frost after the spring date, or before the fall date.
| Chance | Last spring frost | First fall frost |
|---|---|---|
| 10% | Mar 31 | Nov 3 |
| 20% | Mar 25 | Nov 8 |
| 30% | Mar 19 | Nov 12 |
| 40% | Mar 13 | Nov 15 |
| 50% | Mar 9 | Nov 18 |
| 60% | Mar 5 | Nov 21 |
| 70% | Mar 2 | Nov 25 |
| 80% | Feb 26 | Nov 28 |
| 90% | Feb 18 | Dec 3 |
Light frost vs. hard freeze
Average (50%) dates for each temperature. Tender plants are damaged at 36°F; most hardy crops survive until 28°F.
| Temperature | Last in spring | First in fall |
|---|---|---|
| Light frost (36°F) | Mar 25 | Nov 8 |
| Frost / freeze (32°F) | Mar 9 | Nov 18 |
| Hard freeze (28°F) | Feb 18 | Nov 29 |
Planting calendar for Alamogordo
Transplant Mar 16 – Mar 30
Transplant Mar 23 – Apr 6
Transplant Mar 23 – Apr 6
Transplant Mar 16 – Mar 30
Sow or transplant Mar 16 – Mar 30
Sow or transplant Mar 16 – Mar 30
Sow or transplant Mar 23 – Apr 6
Sow or transplant Feb 9 – Feb 23
Fall sowing Sep 23 – Oct 21
Fall sowing Sep 23 – Oct 14
Fall sowing Sep 9 – Sep 23
Sow or transplant Feb 9 – Feb 23
Fall sowing Sep 9 – Oct 7
Transplant Feb 23 – Mar 9
Fall sowing Aug 26 – Sep 9
Transplant Feb 16 – Mar 2
Fall sowing Aug 26 – Sep 9
Fall sowing Aug 26 – Sep 9
Fall sowing Oct 7 – Oct 28
Fall sowing Sep 9 – Sep 23
Plant Feb 9 – Feb 23
Based on the average last frost (Mar 9) and first frost (Nov 18). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.