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Weather & Climate in Santo Tomás, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Santo Tomás enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 43°F in January while summers reach 69°F in July. The area gets 301 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 19.3 inches (drier than the 38-inch national average). The city sits at an elevation of 6,562 feet.
Temperature
43°F Jan (6°C)
69°F Jul (20°C)
| Annual Average | 56.2°F |
| 4% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 69°F (20°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 6,562 ft (2,000 m) |
| Area | 2,646.2 sq mi (6,853.5 km²) |
| Population Density | 0/sq mi |
| Coordinates | 28.6834°N, 107.5734°W |
| Timezone | America/Chihuahua |
Precipitation & Snow
Air Quality
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Jul 12, 2022 | 14 km ENE of San Juanito, Mexico | M4.6 | 72 km | 15 km |
| Apr 24, 2010 | 45 km SSW of Madera, Mexico | M4.3 | 72 km | 20 km |
| May 1, 2010 | 22 km SW of San Francisco de Borja, Mexico | M4.3 | 127 km | 2 km |
| Feb 6, 1991 | 10 km NNE of Santa Isabel, Mexico | M3.9 | 125 km | 5 km |
| Jul 16, 1993 | 35 km SW of La Constitución, Mexico | M3.8 | 121 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2008 | Norbert | Category 1 | 86 mph | 218 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 0.7 in | Coldest |
| February | 45°F (7°C) | 0.5 in | |
| March | 49°F (10°C) | 0.4 in | |
| April | 55°F (13°C) | 0.3 in | Driest |
| May | 62°F (17°C) | 0.4 in | |
| June | 69°F (20°C) | 1.5 in | Warmest |
| July | 69°F (20°C) | 5.1 in | Wettest |
| August | 67°F (20°C) | 5.0 in | |
| September | 65°F (18°C) | 3.0 in | |
| October | 58°F (14°C) | 1.1 in | |
| November | 49°F (10°C) | 0.6 in | |
| December | 44°F (6°C) | 0.8 in |
Santo Tomás has a seasonal temperature swing of 26°F / from 43°F in January to 69°F in June. Total annual precipitation is 19.2 inches, with July being the wettest month (5.1") and April the driest (0.3").