Rómulo Calzada (La Herradura), Mexico

Full City Profile

882 Population 2/sq mi density

338 ft Elevation 103 meters

78°F Avg Temperature 25°C

Rómulo Calzada (La Herradura) has a warm climate with an average annual temperature of 78°F (26°C). Winters average 72°F in January while summers reach 80°F in July. The area gets 139 sunny days per year. Annual precipitation totals 119.9 inches. The area receives 0.0 inches of snow annually.

Temperature

72°F Jan (22°C) 80°F Jul (27°C)

Annual Average	77.6°F
	44% above US avg
January Average	72°F (22°C)
July Average	80°F (27°C)
Sunny Days	139 days/yr

Geography

Elevation	338 ft (103 m)
Area	410.9 sq mi (1,064.2 km²)
Population Density	2/sq mi
Coordinates	17.3418°N, 93.5533°W
Timezone	America/Mexico_City

Precipitation & Snow

Annual Rainfall 119.9"

215% above US avg

Snowfall 0.0"

Wettest Month (Sep) 17.76"

Driest Month (Apr) 3.39"

Air Quality

Earthquake History

1,050 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.2. Most recent: M4.0 on Aug 20, 2025.

Oct 21, 1995	13 km NW of Ocozocoautla de Espinosa, Mexico	M7.2	57 km
Apr 7, 2011	7 km SW of Helio García Alfaro, Mexico	M6.6	85 km
Feb 12, 2008	9 km SSW of General Pascual Fentes, Mexico	M6.5	136 km
Jul 6, 2007	6 km N of Lázaro Cárdenas, Mexico	M6.1	120 km
Jan 5, 2020	3 km W of Reforma de Pineda, Mexico	M5.9	144 km
May 5, 2025	5 km NNE of Nuevo León, Mexico	M5.8	140 km
Feb 1, 2003	7 km NNW of Nuevo Vicente Guerrero (El Chichonal), Mexico	M5.8	113 km
Aug 9, 2023	7 km NNE of Tonalá, Mexico	M5.8	134 km
Aug 5, 2015	11 km ENE of Tonalá, Mexico	M5.7	134 km
May 20, 2017	21 km SE of La Horqueta (Poblado Doce), Mexico	M5.7	65 km
Mar 12, 1994	30 km NNE of Santo Domingo Zanatepec, Mexico	M5.6	101 km
Sep 1, 2012	11 km N of Plan de Agua Prieta, Mexico	M5.5	149 km
Apr 20, 2004	8 km S of Vicente Guerrero, Mexico	M5.4	124 km
May 23, 2016	9 km WSW of Emiliano Zapata, Mexico	M5.4	80 km
Jan 30, 2019	37 km NE of La Horqueta (Poblado Doce), Mexico	M5.4	46 km
Jun 28, 2015	11 km NE of La Blanca, Mexico	M5.4	136 km
Aug 5, 2024	17 km NW of Emiliano Zapata, Mexico	M5.4	70 km
Jun 7, 2009	5 km SW of Emiliano Zapata, Mexico	M5.4	137 km
Dec 19, 2001	34 km WNW of Raudales Malpaso, Mexico	M5.3	34 km
May 25, 2017	21 km SSE of La Horqueta (Poblado Doce), Mexico	M5.3	73 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

5 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: Barbara (2013).

Year	Name	Category	Closest
2013	Barbara	Category 1	132 km
2011	Nate	Category 1	294 km
2010	Karl	Category 3	252 km
2007	Dean	Category 1	288 km
2005	Stan	Category 1	200 km

Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 50.0 m (164 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
2007	JUAN DE GRIJALVA, CHIAPAS	Meteorological	50.0 m	19	73 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

1 volcano within 200 km. Closest: Chichon, El (35 km).

Name	Type	Elevation	Last Eruption	Distance
Chichon, El	Lava dome(s)	1,150 m (3,773 ft)	1982	35 km

Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	72°F (22°C)	8.3 in	Coldest
February	73°F (23°C)	6.2 in
March	77°F (25°C)	3.7 in
April	81°F (27°C)	3.4 in	Driest
May	83°F (28°C)	4.7 in	Warmest
June	82°F (28°C)	12.2 in
July	80°F (27°C)	11.9 in
August	80°F (27°C)	14.2 in
September	80°F (27°C)	17.8 in	Wettest
October	78°F (25°C)	17.4 in
November	75°F (24°C)	11.1 in
December	72°F (22°C)	9.1 in

Rómulo Calzada (La Herradura) has a seasonal temperature swing of 12°F / from 72°F in January to 83°F in May. Total annual precipitation is 119.9 inches, with September being the wettest month (17.8") and April the driest (3.4").

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