Last spring frost
Apr 21
Frost Dates for San Lorenzo, NM
First fall frost
Oct 31
Growing season
191 days
Hardiness zone
7b
In an average year around San Lorenzo, NM, the last spring frost (32°F) is about Apr 21 and the first fall frost is about Oct 31, giving roughly a 191-day growing season. To be safe most years, wait until Apr 3 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | May 17 | May 4 | Apr 20 |
| Freeze (32°F) | May 8 | Apr 21 | Apr 3 |
| Hard (28°F) | Apr 26 | Apr 4 | Mar 10 |
| Severe (24°F) | Apr 10 | Mar 10 | Feb 19 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 17 | May 13 | May 9 | May 7 | May 4 | May 1 | Apr 29 | Apr 25 | Apr 20 |
| 32°F | May 8 | May 2 | Apr 29 | Apr 24 | Apr 21 | Apr 17 | Apr 13 | Apr 8 | Apr 3 |
| 28°F | Apr 26 | Apr 19 | Apr 11 | Apr 7 | Apr 4 | Mar 31 | Mar 25 | Mar 17 | Mar 10 |
| 24°F | Apr 10 | Apr 1 | Mar 22 | Mar 16 | Mar 10 | Mar 6 | Mar 2 | Feb 26 | Feb 19 |
| 20°F | Mar 17 | Mar 9 | Mar 2 | Feb 23 | Feb 18 | Feb 14 | Feb 6 | Jan 31 | Jan 18 |
| 16°F | Feb 25 | Feb 15 | Feb 6 | Jan 30 | Jan 21 | Jan 12 | Jan 5 | Dec 31 | Dec 21 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 6 | Oct 20 | Nov 2 |
| Freeze (32°F) | Oct 17 | Oct 31 | Nov 13 |
| Hard (28°F) | Oct 24 | Nov 9 | Nov 25 |
| Severe (24°F) | Nov 3 | Nov 22 | Dec 6 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 6 | Oct 11 | Oct 15 | Oct 18 | Oct 20 | Oct 22 | Oct 26 | Oct 30 | Nov 2 |
| 32°F | Oct 17 | Oct 21 | Oct 24 | Oct 28 | Oct 31 | Nov 2 | Nov 5 | Nov 8 | Nov 13 |
| 28°F | Oct 24 | Oct 30 | Nov 3 | Nov 6 | Nov 9 | Nov 12 | Nov 16 | Nov 20 | Nov 25 |
| 24°F | Nov 3 | Nov 10 | Nov 15 | Nov 18 | Nov 22 | Nov 25 | Nov 29 | Dec 2 | Dec 6 |
| 20°F | Nov 17 | Nov 24 | Nov 28 | Dec 2 | Dec 5 | Dec 9 | Dec 12 | Dec 16 | Dec 23 |
| 16°F | Nov 28 | Dec 5 | Dec 12 | Dec 16 | Dec 21 | Dec 25 | Dec 31 | Jan 7 | Jan 23 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Faywood, Nm, about 12.6 miles away@if(!empty($station['elevation_ft'])), at 5,251 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in San Lorenzo, NM?
On average, the last spring frost (32°F) around San Lorenzo, NM is about Apr 21. In cooler years it can run later, so for a safer bet many gardeners wait until Apr 3.
When is the first frost in the fall?
The first fall frost around San Lorenzo, NM typically arrives about Oct 31. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Apr 21 on average, or Apr 3 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 191 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 88041 Planting calendar → New Mexico frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026