All Countries
Weather & Climate in San Ysidro, NM
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Ysidro enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 44°F in January while summers reach 82°F in July. The area gets 330 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 9.1 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 37. The city sits at an elevation of 3,914 feet.
Temperature
44°F Jan (7°C)
82°F Jul (28°C)
| Annual Average | 63.2°F |
| 17% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 3,914 ft (1,193 m) |
| Area | 2.7 sq mi (6.9 km²) |
| Population Density | 72/sq mi |
| Coordinates | 32.3568°N, 106.8129°W |
| Timezone | America/Denver |
| County | Doña Ana County County |
| Nearest Airport | Las Cruces International (LRU) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.1 / 100 |
| Social Vulnerability | 67.5 / 100 |
| Community Resilience | 4.6 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Relatively High |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Very High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Volcano | No Rating |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
17 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Feb 8, 2015 | 36 km E of Pecan Park, New Mexico | M3.9 | 46 km | 4 km |
| Jun 20, 1991 | 47 km SE of San Antonito, New Mexico | M3.5 | 144 km | 0 km |
| Jun 10, 1993 | 47 km SE of San Antonito, New Mexico | M3.2 | 144 km | 0 km |
| Feb 1, 2015 | 34 km ESE of Pecan Park, New Mexico | M3.1 | 50 km | 5 km |
| Feb 7, 2015 | 35 km E of Pecan Park, New Mexico | M3.1 | 48 km | 5 km |
| Feb 1, 2015 | 38 km E of Pecan Park, New Mexico | M3.1 | 43 km | 5 km |
| Feb 8, 2015 | 36 km E of Pecan Park, New Mexico | M3.0 | 46 km | 5 km |
| Feb 8, 2015 | 35 km W of Fairacres, New Mexico | M3.0 | 39 km | 5 km |
| Jan 27, 2013 | 13 km SW of Sunshine, New Mexico | M2.9 | 103 km | 5 km |
| Feb 8, 2015 | 35 km ESE of Ventura, New Mexico | M2.9 | 53 km | 8 km |
| Apr 5, 2012 | 10 km NE of Fabens, Texas | M2.9 | 111 km | 5 km |
| Feb 15, 2015 | 34 km ESE of Pecan Park, New Mexico | M2.8 | 52 km | 5 km |
| Sep 6, 1991 | 8 km NNW of Mimbres, New Mexico | M2.8 | 130 km | 10 km |
| Jan 3, 2025 | 50 km NW of Tularosa, New Mexico | M2.8 | 125 km | 10 km |
| Jun 5, 2009 | 3 km SE of Praxedis G. Guerrero, Mexico | M2.6 | 137 km | 0 km |
| Feb 8, 2015 | 38 km ESE of Pecan Park, New Mexico | M2.6 | 48 km | 5 km |
| Mar 6, 2012 | 9 km E of Fort Bliss, Texas | M2.5 | 77 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
34 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.
| Date | Rating | Distance | Path | Fatalities |
| May 27, 1982 | EF2 | 99 km | 0.1 mi | 0 |
| Oct 9, 2006 | EF1 | 77 km | 1.0 mi | 0 |
| Jun 21, 1992 | EF1 | 95 km | 0.5 mi | 0 |
| Jun 21, 1992 | EF1 | 95 km | 1.2 mi | 0 |
| Jun 21, 1992 | EF1 | 91 km | 0.6 mi | 0 |
| Jul 28, 1989 | EF1 | 41 km | 4.0 mi | 0 |
| Jul 22, 1989 | EF1 | 97 km | 0.2 mi | 0 |
| Jul 31, 1979 | EF1 | 44 km | 2.0 mi | 0 |
| Jul 19, 1972 | EF1 | 85 km | 2.0 mi | 0 |
| Aug 9, 1971 | EF1 | 92 km | 0.1 mi | 0 |
| Jul 29, 1959 | EF1 | 37 km | 0.1 mi | 0 |
| Mar 13, 2020 | EF0 | 95 km | 0.6 mi | 0 |
| Jul 13, 2011 | EF0 | 55 km | 0.4 mi | 0 |
| May 2, 2007 | EF0 | 59 km | 0.6 mi | 0 |
| May 2, 2007 | EF0 | 40 km | 8.4 mi | 0 |
| Apr 29, 2007 | EF0 | 39 km | 0.1 mi | 0 |
| Oct 15, 2006 | EF0 | 88 km | 6.5 mi | 0 |
| Sep 13, 2006 | EF0 | 10 km | 0.2 mi | 0 |
| Aug 2, 2002 | EF0 | 35 km | 1.0 mi | 0 |
| Jun 19, 2001 | EF0 | 7 km | 0.3 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km. Closest: Carrizozo (178 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Carrizozo | Pyroclastic cone(s) | 1,731 m (5,679 ft) | -3250 | 178 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: ESCONDIDO (25,700 acres, 1993).
| Year | Name | Acres Burned | Distance |
| 1993 | ESCONDIDO | 25,700 | 91 km |
| 2009 | OROGRANDE | 14,853 | 71 km |
| 1994 | HAT | 14,842 | 88 km |
| 1994 | UNNAMED | 14,645 | 29 km |
| 2011 | ABRAMS | 12,786 | 28 km |
| 2001 | BENNETT MT | 10,249 | 38 km |
| 1993 | UVAS | 8,541 | 42 km |
| 1994 | UNNAMED | 7,496 | 29 km |
| 1992 | UNNAMED | 7,001 | 90 km |
| 2010 | LONG CANYON | 6,656 | 28 km |
| 1990 | UNNAMED | 6,605 | 86 km |
| 1993 | UNNAMED | 6,482 | 58 km |
| 2011 | CENTENNIAL | 6,269 | 91 km |
| 1993 | MARTIN | 5,290 | 85 km |
| 2018 | ORGAN | 4,880 | 29 km |
| 2022 | POTRILLO | 4,293 | 51 km |
| 2000 | DOUBLE TK | 3,820 | 93 km |
| 1994 | GOODSIGHT | 3,450 | 60 km |
| 1990 | SOLADA | 3,419 | 33 km |
| 2000 | GRANDADDY | 3,360 | 99 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 0.6 in | |
| February | 46°F (8°C) | 0.4 in | |
| March | 52°F (11°C) | 0.2 in | |
| April | 59°F (15°C) | 0.2 in | Driest |
| May | 68°F (20°C) | 0.4 in | |
| June | 77°F (25°C) | 0.8 in | |
| July | 82°F (28°C) | 1.9 in | Warmest |
| August | 77°F (25°C) | 2.4 in | Wettest |
| September | 71°F (22°C) | 1.5 in | |
| October | 61°F (16°C) | 1.1 in | |
| November | 49°F (10°C) | 0.6 in | |
| December | 42°F (5°C) | 0.8 in | Coldest |
San Ysidro has a seasonal temperature swing of 41°F / from 42°F in December to 82°F in July. Total annual precipitation is 10.7 inches, with August being the wettest month (2.4") and April the driest (0.2").