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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. 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 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) |
| Sunny Days | 353 days/yr |
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").