San Jerónimo, Mexico

Full City Profile

866 Population 1/sq mi density

591 ft Elevation 180 meters

80°F Avg Temperature 27°C

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. The area gets 281 sunny days per year. Annual precipitation totals 30.5 inches. The area receives 0.0 inches of snow annually.

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

Annual Rainfall 30.5"

20% below US avg

Snowfall 0.0"

Wettest Month (Jul) 7.60"

Driest Month (Mar) 0.08"

Air Quality

Earthquake History

930 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.2. Most recent: M4.2 on Jul 27, 2025.

Apr 18, 2014	9 km ENE of Coyuquilla Norte, Mexico	M7.2	132 km
Jul 15, 1996	26 km NNE of Coyuquilla Norte, Mexico	M6.8	111 km
Aug 9, 2000	24 km NNW of El Habillal, Mexico	M6.5	127 km
Apr 11, 2012	41 km NW of El Habillal, Mexico	M6.5	148 km
Dec 10, 1994	22 km SW of Guayameo, Mexico	M6.5	45 km
May 22, 1997	5 km ENE of Churumuco de Morelos, Mexico	M6.5	34 km
May 23, 1994	4 km W of San Cristóbal, Mexico	M6.3	94 km
Jun 21, 1999	20 km E of Coahuayutla de Guerrero, Mexico	M6.3	32 km
Nov 15, 2012	8 km N of San José Poliutla, Mexico	M6.1	102 km
Jan 1, 2004	6 km SW of Petatlán, Mexico	M6.1	116 km
Apr 22, 2013	7 km NNE of Guacamayas, Mexico	M6.0	103 km
Apr 20, 1998	17 km ENE of Aratichanguío, Mexico	M6.0	13 km
Dec 29, 1999	19 km WSW of Guayameo, Mexico	M5.9	34 km
Apr 18, 2002	24 km WSW of Papanoa, Mexico	M5.9	145 km
Apr 28, 2008	21 km WNW of Tlacotepec, Mexico	M5.8	144 km
May 1, 2012	19 km W of Placeres del Oro, Mexico	M5.7	40 km
Jan 1, 2004	13 km SSW of Petatlán, Mexico	M5.7	124 km
Apr 23, 1996	30 km SSW of Petatlán, Mexico	M5.6	139 km
Jul 11, 1998	18 km SSW of Petatlán, Mexico	M5.5	127 km
Jan 25, 1996	17 km WSW of Las Cañas, Mexico	M5.5	85 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

23 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5. Most recent: Erick (2025).

Year	Name	Category	Closest
2025	Erick	Category 2	267 km
2024	John	Category 3	200 km
2023	Otis	Category 5	143 km
2023	Beatriz	Category 1	184 km
2021	Rick	Category 2	95 km
2019	Lorena	Category 1	289 km
2017	Max	Category 1	263 km
2015	Marty	Category 1	234 km
2015	Carlos	Category 1	240 km
2013	Raymond	Category 3	245 km
2013	Erick	Category 1	277 km
2011	Hilary	Category 4	282 km
2011	Beatriz	Category 1	230 km
2009	Andres	Category 1	239 km
2006	John	Category 4	233 km
1997	Pauline	Category 1	242 km
1996	Alma	Category 2	128 km
1996	Hernan	Category 1	192 km
1996	Boris	Category 1	71 km
1993	Calvin	Category 2	216 km

Source: NOAA IBTrACS (Cat 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. Sorted by wave height.

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). Sorted by distance.

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").

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