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Weather & Climate in Barrio la Viga (Cerro Loco), Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Barrio la Viga (Cerro Loco) experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 44°F in January while summers reach 50°F in July / relatively mild seasonal variation. The area gets 353 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 42.1 inches. The area receives 1.1 inches of snow annually. The city sits at an elevation of 10,197 feet.
Temperature
44°F Jan (7°C)
50°F Jul (10°C)
| Annual Average | 48.7°F |
| 10% below US avg | |
| January Average | 44°F (7°C) |
| July Average | 50°F (10°C) |
| Sunny Days | 353 days/yr |
Geography
| Elevation | 10,197 ft (3,108 m) |
| Area | 75.8 sq mi (196.3 km²) |
| Population Density | 11/sq mi |
| Coordinates | 19.4253°N, 99.3692°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
197 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Sep 19, 2017 | 1 km S of Matzaco, Mexico | M7.1 | 134 km | 48 km |
| Jul 21, 2000 | 12 km NW of Jolalpan, Mexico | M5.9 | 122 km | 80 km |
| Jun 16, 2013 | 5 km N of Tequicuilco, Mexico | M5.8 | 142 km | 52 km |
| Feb 28, 2025 | 3 km NE of Pololcingo, Mexico | M5.0 | 125 km | 65 km |
| May 26, 2005 | 7 km ESE of Cocula, Mexico | M4.7 | 136 km | 93 km |
| Apr 22, 1994 | 7 km ESE of Palmar Chico, Mexico | M4.6 | 130 km | 70 km |
| Jun 29, 2013 | 10 km WNW of Tequicuilco, Mexico | M4.5 | 142 km | 55 km |
| Apr 5, 2022 | 17 km NNW of Tuzantla, Mexico | M4.5 | 135 km | 4 km |
| Mar 15, 1998 | 2 km NE of Macutzio, Mexico | M4.2 | 103 km | 15 km |
| Mar 4, 2000 | 3 km NE of Tulcingo, Mexico | M4.1 | 105 km | 0 km |
| Feb 23, 2013 | 6 km E of Mayanalán, Mexico | M4.1 | 140 km | 38 km |
| Feb 4, 2003 | Puebla region, Mexico | M4.1 | 105 km | 1 km |
| May 6, 2013 | 12 km NW of San Pedro Benito Juárez, Mexico | M4.1 | 89 km | 1 km |
| Mar 2, 2002 | 8 km SW of Acapetlahuaya, Mexico | M4.1 | 143 km | 51 km |
| Mar 12, 2000 | 1 km SE of Teocalco, Mexico | M4.1 | 73 km | 5 km |
| Apr 21, 1998 | central Mexico | M4.1 | 91 km | 0 km |
| May 28, 2007 | 6 km NNE of Acapetlahuaya, Mexico | M4.1 | 127 km | 55 km |
| Mar 21, 1998 | 8 km W of San Mateo Ozolco, Mexico | M4.1 | 88 km | 5 km |
| Jan 26, 2013 | 2 km WSW of Tonalapa del Sur, Mexico | M4.1 | 150 km | 52 km |
| Jul 17, 2012 | 12 km NNW of Ixcapuzalco, Mexico | M4.1 | 107 km | 76 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
16 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Erick | Category 2 | 75 mph | 259 km |
| 2024 | John | Category 2 | 98 mph | 241 km |
| 2023 | Otis | Category 5 | 161 mph | 216 km |
| 2021 | Grace | Category 3 | 121 mph | 212 km |
| 2017 | Franklin | Category 1 | 81 mph | 297 km |
| 2017 | Katia | Category 1 | 81 mph | 271 km |
| 2010 | Karl | Category 1 | — | 276 km |
| 2007 | Dean | Category 2 | 98 mph | 247 km |
| 2007 | Lorenzo | Category 1 | 75 mph | 266 km |
| 1997 | Pauline | Category 1 | — | 272 km |
| 1996 | Boris | Category 1 | 92 mph | 299 km |
| 1996 | Dolly | Category 1 | 81 mph | 298 km |
| 1993 | Gert | Category 2 | 98 mph | 217 km |
| 1990 | Diana | Category 2 | 98 mph | 263 km |
| 1989 | Cosme | Category 1 | 75 mph | 284 km |
| 1988 | Debby | Category 1 | 75 mph | 258 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
7 volcanoes within 200 km. Closest: Chichinautzin (46 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Chichinautzin | Volcanic field | 3,930 m (12,894 ft) | 400 | 46 km |
| Toluca, Nevado de | Stratovolcano | 4,680 m (15,354 ft) | -1350 | 54 km |
| Papayo | Lava dome | 3,600 m (11,811 ft) | Unknown | 71 km |
| Iztaccihuatl | Stratovolcano | 5,230 m (17,159 ft) | Unknown | 81 km |
| Popocatepetl | Stratovolcano(es) | 5,393 m (17,694 ft) | 2020 | 90 km |
| Zitacuaro-Valle de Bravo | Caldera | 3,500 m (11,483 ft) | -3050 | 92 km |
| Serdan-Oriental | Tuff cone(s) | 3,485 m (11,434 ft) | Unknown | 200 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 0.8 in | Coldest |
| February | 51°F (11°C) | 0.5 in | Driest |
| March | 54°F (12°C) | 0.7 in | |
| April | 56°F (13°C) | 1.4 in | |
| May | 57°F (14°C) | 3.0 in | |
| June | 57°F (14°C) | 7.2 in | Warmest |
| July | 50°F (10°C) | 8.3 in | Wettest |
| August | 56°F (13°C) | 7.9 in | |
| September | 56°F (13°C) | 6.6 in | |
| October | 54°F (12°C) | 3.0 in | |
| November | 52°F (11°C) | 0.8 in | |
| December | 50°F (10°C) | 0.5 in |
Barrio la Viga (Cerro Loco) has a seasonal temperature swing of 13°F / from 44°F in January to 57°F in June. Total annual precipitation is 40.5 inches, with July being the wettest month (8.3") and February the driest (0.5").