Weather & Climate in San Jerónimo, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Jerónimo 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. Annual precipitation totals 42.1 inches. The area receives 1.1 inches of snow annually. The city sits at an elevation of 8,550 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) |
Geography
| Elevation | 8,550 ft (2,606 m) |
| Area | 28.2 sq mi (73.0 km²) |
| Population Density | 932/sq mi |
| Coordinates | 19.2828°N, 99.5929°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
249 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 | 142 km | 48 km |
| Nov 15, 2012 | 8 km N of San José Poliutla, Mexico | M6.1 | 133 km | 53 km |
| Jul 21, 2000 | 12 km NW of Jolalpan, Mexico | M5.9 | 120 km | 80 km |
| Jun 16, 2013 | 5 km N of Tequicuilco, Mexico | M5.8 | 132 km | 52 km |
| Aug 15, 2009 | 3 km NE of San Miguel Totolapan, Mexico | M5.5 | 147 km | 57 km |
| Feb 28, 2025 | 3 km NE of Pololcingo, Mexico | M5.0 | 112 km | 65 km |
| May 20, 2014 | 20 km WSW of Apaxtla de Castrejón, Mexico | M4.9 | 149 km | 54 km |
| Jul 19, 1993 | 4 km W of San Antonio del Rosario, Mexico | M4.9 | 126 km | 56 km |
| Aug 29, 1993 | 3 km NNE of Querendas, Mexico | M4.8 | 148 km | 87 km |
| May 26, 2005 | 7 km ESE of Cocula, Mexico | M4.7 | 118 km | 93 km |
| Apr 22, 1994 | 7 km ESE of Palmar Chico, Mexico | M4.6 | 102 km | 70 km |
| Apr 5, 2022 | 17 km NNW of Tuzantla, Mexico | M4.5 | 112 km | 4 km |
| Jun 29, 2013 | 10 km WNW of Tequicuilco, Mexico | M4.5 | 130 km | 55 km |
| Sep 11, 2019 | 2 km SSW of Maxela, Mexico | M4.4 | 139 km | 56 km |
| May 22, 2013 | 2 km SE of Salguero, Mexico | M4.4 | 145 km | 70 km |
| Jun 26, 2006 | 14 km SW of Apaxtla de Castrejón, Mexico | M4.3 | 147 km | 54 km |
| Jun 21, 1996 | 4 km ENE of Villa Madero, Mexico | M4.3 | 128 km | 61 km |
| Jul 17, 2007 | 4 km NNE of San Lucas, Mexico | M4.3 | 143 km | 37 km |
| May 13, 2003 | 1 km W of San Antonio de las Huertas, Mexico | M4.2 | 149 km | 67 km |
| Mar 15, 1998 | 2 km NE of Macutzio, Mexico | M4.2 | 83 km | 15 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 | 245 km |
| 2024 | John | Category 3 | 121 mph | 222 km |
| 2023 | Otis | Category 5 | 167 mph | 191 km |
| 2021 | Grace | Category 3 | 121 mph | 240 km |
| 2021 | Rick | Category 2 | 104 mph | 295 km |
| 2017 | Katia | Category 1 | 81 mph | 299 km |
| 2017 | Max | Category 1 | 92 mph | 296 km |
| 2010 | Karl | Category 1 | - | 297 km |
| 2007 | Dean | Category 2 | 98 mph | 275 km |
| 2007 | Lorenzo | Category 1 | 75 mph | 294 km |
| 1997 | Pauline | Category 1 | 81 mph | 254 km |
| 1996 | Boris | Category 1 | 92 mph | 271 km |
| 1993 | Gert | Category 2 | 98 mph | 243 km |
| 1990 | Diana | Category 2 | 98 mph | 291 km |
| 1989 | Cosme | Category 1 | 81 mph | 272 km |
| 1988 | Debby | Category 1 | 75 mph | 287 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Toluca, Nevado de (26 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Toluca, Nevado de | Stratovolcano | 4,680 m (15,354 ft) | -1350 | 26 km |
| Chichinautzin | Volcanic field | 3,930 m (12,894 ft) | 400 | 54 km |
| Zitacuaro-Valle de Bravo | Caldera | 3,500 m (11,483 ft) | -3050 | 70 km |
| Papayo | Lava dome | 3,600 m (11,811 ft) | Unknown | 94 km |
| Iztaccihuatl | Stratovolcano | 5,230 m (17,159 ft) | Unknown | 101 km |
| Popocatepetl | Stratovolcano(es) | 5,393 m (17,694 ft) | 2020 | 106 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 0.6 in | Coldest |
| February | 54°F (12°C) | 0.3 in | Driest |
| March | 57°F (14°C) | 0.6 in | |
| April | 59°F (15°C) | 1.3 in | |
| May | 60°F (16°C) | 3.1 in | Warmest |
| June | 60°F (15°C) | 6.9 in | |
| July | 50°F (10°C) | 7.8 in | Wettest |
| August | 58°F (15°C) | 7.2 in | |
| September | 58°F (15°C) | 6.1 in | |
| October | 57°F (14°C) | 2.6 in | |
| November | 54°F (12°C) | 0.8 in | |
| December | 52°F (11°C) | 0.4 in |
San Jerónimo has a seasonal temperature swing of 16°F / from 44°F in January to 60°F in May. Total annual precipitation is 37.5 inches, with July being the wettest month (7.8") and February the driest (0.3").