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Weather & Climate in Vallecillo, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Vallecillo has a warm climate with an average annual temperature of 73°F (23°C). Winters average 57°F in January while summers reach 86°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 19.4 inches (drier than the 38-inch national average). The city sits at an elevation of 879 feet.
Temperature
57°F Jan (14°C)
86°F Jul (30°C)
| Annual Average | 73.1°F |
| 35% above US avg | |
| January Average | 57°F (14°C) |
| July Average | 86°F (30°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 879 ft (268 m) |
| Area | 833.9 sq mi (2,159.7 km²) |
| Population Density | 1/sq mi |
| Coordinates | 26.6603°N, 99.9874°W |
| Timezone | America/Monterrey |
Precipitation & Snow
Air Quality
Earthquake History
13 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.
| Mar 18, 2014 | 18 km E of Pueblo Nuevo, Mexico | M4.1 | 139 km | 1 km |
| Jan 19, 2014 | 12 km SSW of China, Mexico | M4.1 | 138 km | 12 km |
| Jan 20, 2010 | 4 km S of San Pedro Garza García, Mexico | M4.0 | 123 km | 5 km |
| Dec 22, 2013 | 19 km NE of Ciudad General Terán, Mexico | M4.0 | 147 km | 37 km |
| Nov 25, 2013 | 23 km SE of Los Ramones, Mexico | M4.0 | 136 km | 10 km |
| Mar 4, 2014 | 27 km SE of Los Ramones, Mexico | M4.0 | 139 km | 5 km |
| Mar 2, 2014 | 15 km SW of China, Mexico | M4.0 | 134 km | 8 km |
| Nov 30, 2013 | 26 km SE of Los Ramones, Mexico | M3.9 | 139 km | 2 km |
| Mar 5, 2014 | 18 km SSW of China, Mexico | M3.9 | 144 km | 10 km |
| Nov 16, 1991 | Coahuila-Nuevo Leon border region, Mexico | M3.6 | 104 km | 5 km |
| Aug 30, 2016 | 11 km N of Los Ramones, Mexico | M3.6 | 102 km | 38 km |
| Nov 26, 2013 | 22 km S of China, Mexico | M3.6 | 150 km | 37 km |
| Mar 16, 2022 | 5 km SW of Santiago, Mexico | M3.4 | 142 km | 14 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
8 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2020 | Hanna | Category 1 | 92 mph | 198 km |
| 2008 | Dolly | Category 1 | 86 mph | 218 km |
| 2005 | Emily | Category 3 | 127 mph | 225 km |
| 2003 | Erika | Category 1 | 75 mph | 289 km |
| 1999 | Bret | Category 3 | 115 mph | 194 km |
| 1988 | Gilbert | Category 3 | 127 mph | 258 km |
| 1983 | Barry | Category 1 | 81 mph | 285 km |
| 1980 | Allen | Category 3 | 115 mph | 110 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: JENNINGS (3,494 acres, 2023).
| Year | Name | Acres Burned | Distance |
| 2023 | JENNINGS | 3,494 | 92 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 57°F (14°C) | 0.9 in | Coldest |
| February | 61°F (16°C) | 0.6 in | Driest |
| March | 68°F (20°C) | 0.8 in | |
| April | 75°F (24°C) | 1.4 in | |
| May | 81°F (27°C) | 2.2 in | |
| June | 85°F (29°C) | 2.2 in | |
| July | 86°F (30°C) | 1.9 in | Warmest |
| August | 86°F (30°C) | 2.3 in | |
| September | 82°F (28°C) | 3.9 in | Wettest |
| October | 74°F (23°C) | 1.8 in | |
| November | 65°F (18°C) | 0.8 in | |
| December | 58°F (14°C) | 0.7 in |
Vallecillo has a seasonal temperature swing of 30°F / from 57°F in January to 86°F in July. Total annual precipitation is 19.4 inches, with September being the wettest month (3.9") and February the driest (0.6").