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Weather & Climate in San Jerónimo, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Jerónimo has a warm climate with an average annual temperature of 80°F (27°C). Winters average 77°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 281 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 30.5 inches. The city sits at an elevation of 591 feet.
Temperature
77°F Jan (25°C)
80°F Jul (27°C)
| Annual Average | 80.3°F |
| 49% above US avg | |
| January Average | 77°F (25°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 281 days/yr |
Geography
| Elevation | 591 ft (180 m) |
| Area | 621.3 sq mi (1,609.1 km²) |
| Population Density | 1/sq mi |
| Coordinates | 18.5329°N, 101.3257°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
930 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.2.
| Apr 18, 2014 | 9 km ENE of Coyuquilla Norte, Mexico | M7.2 | 132 km | 24 km |
| Jul 15, 1996 | 26 km NNE of Coyuquilla Norte, Mexico | M6.8 | 111 km | 18 km |
| Aug 9, 2000 | 24 km NNW of El Habillal, Mexico | M6.5 | 127 km | 46 km |
| Apr 11, 2012 | 41 km NW of El Habillal, Mexico | M6.5 | 148 km | 20 km |
| Dec 10, 1994 | 22 km SW of Guayameo, Mexico | M6.5 | 45 km | 48 km |
| May 22, 1997 | 5 km ENE of Churumuco de Morelos, Mexico | M6.5 | 34 km | 70 km |
| May 23, 1994 | 4 km W of San Cristóbal, Mexico | M6.3 | 94 km | 55 km |
| Jun 21, 1999 | 20 km E of Coahuayutla de Guerrero, Mexico | M6.3 | 32 km | 69 km |
| Nov 15, 2012 | 8 km N of San José Poliutla, Mexico | M6.1 | 102 km | 53 km |
| Jan 1, 2004 | 6 km SW of Petatlán, Mexico | M6.1 | 116 km | 29 km |
| Apr 22, 2013 | 7 km NNE of Guacamayas, Mexico | M6.0 | 103 km | 30 km |
| Apr 20, 1998 | 17 km ENE of Aratichanguío, Mexico | M6.0 | 13 km | 67 km |
| Dec 29, 1999 | 19 km WSW of Guayameo, Mexico | M5.9 | 34 km | 70 km |
| Apr 18, 2002 | 24 km WSW of Papanoa, Mexico | M5.9 | 145 km | 33 km |
| Apr 28, 2008 | 21 km WNW of Tlacotepec, Mexico | M5.8 | 144 km | 57 km |
| May 1, 2012 | 19 km W of Placeres del Oro, Mexico | M5.7 | 40 km | 51 km |
| Jan 1, 2004 | 13 km SSW of Petatlán, Mexico | M5.7 | 124 km | 28 km |
| Apr 23, 1996 | 30 km SSW of Petatlán, Mexico | M5.6 | 139 km | 33 km |
| Jul 11, 1998 | 18 km SSW of Petatlán, Mexico | M5.5 | 127 km | 33 km |
| Jan 25, 1996 | 17 km WSW of Las Cañas, Mexico | M5.5 | 85 km | 77 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
23 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 | 267 km |
| 2024 | John | Category 3 | 121 mph | 200 km |
| 2023 | Otis | Category 5 | 167 mph | 143 km |
| 2023 | Beatriz | Category 1 | 86 mph | 184 km |
| 2021 | Rick | Category 2 | 104 mph | 95 km |
| 2019 | Lorena | Category 1 | — | 289 km |
| 2017 | Max | Category 1 | 92 mph | 263 km |
| 2015 | Marty | Category 1 | 81 mph | 234 km |
| 2015 | Carlos | Category 1 | 86 mph | 240 km |
| 2013 | Raymond | Category 3 | 127 mph | 245 km |
| 2013 | Erick | Category 1 | 81 mph | 277 km |
| 2011 | Hilary | Category 4 | 144 mph | 282 km |
| 2011 | Beatriz | Category 1 | 92 mph | 230 km |
| 2009 | Andres | Category 1 | 81 mph | 239 km |
| 2006 | John | Category 4 | 132 mph | 233 km |
| 1997 | Pauline | Category 1 | 81 mph | 242 km |
| 1996 | Alma | Category 2 | 104 mph | 128 km |
| 1996 | Hernan | Category 1 | 86 mph | 192 km |
| 1996 | Boris | Category 1 | 92 mph | 71 km |
| 1993 | Calvin | Category 2 | 109 mph | 216 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
7 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1985 | MEXICO | Earthquake | 3.0 m | 9,500 | 133 km |
| 1979 | S. MEXICO | Earthquake | 1.3 m | 5 | 80 km |
| 1985 | MEXICO | Earthquake | 1.2 m | — | 88 km |
| 2014 | S. MEXICO | Earthquake | 0.4 m | — | 132 km |
| 2013 | MEXICO | Earthquake | 0.1 m | — | 103 km |
| 1981 | MEXICO | Earthquake | 0.1 m | 3 | 94 km |
| 1933 | MEXICO | Earthquake | — | — | 133 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Zitacuaro-Valle de Bravo (149 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Zitacuaro-Valle de Bravo | Caldera | 3,500 m (11,483 ft) | -3050 | 149 km |
| Michoacan-Guanajuato | Pyroclastic cone(s) | 3,860 m (12,664 ft) | 1952 | 153 km |
| Toluca, Nevado de | Stratovolcano | 4,680 m (15,354 ft) | -1350 | 177 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 77°F (25°C) | 0.6 in | Coldest |
| February | 78°F (26°C) | 0.1 in | |
| March | 80°F (27°C) | 0.1 in | Driest |
| April | 83°F (28°C) | 0.1 in | |
| May | 85°F (29°C) | 0.8 in | Warmest |
| June | 83°F (28°C) | 5.4 in | |
| July | 80°F (27°C) | 7.6 in | Wettest |
| August | 80°F (26°C) | 7.1 in | |
| September | 80°F (26°C) | 6.1 in | |
| October | 80°F (27°C) | 2.2 in | |
| November | 80°F (27°C) | 0.4 in | |
| December | 78°F (26°C) | 0.1 in |
San Jerónimo has a seasonal temperature swing of 8°F / from 77°F in January to 85°F in May. Total annual precipitation is 30.5 inches, with July being the wettest month (7.6") and March the driest (0.1").