San Ildefonso (San Ildefonso Yolotepec), Mexico

Full City Profile

771 Population 3/sq mi density

8,353 ft Elevation 2,546 meters

53°F Avg Temperature 12°C

San Ildefonso (San Ildefonso Yolotepec) experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 47°F in January while summers reach 55°F in July. The area gets 353 sunny days per year. Annual precipitation totals 31.1 inches. The area receives 0.0 inches of snow annually.

Temperature

47°F Jan (8°C) 55°F Jul (13°C)

Annual Average	52.9°F
	2% below US avg
January Average	47°F (8°C)
July Average	55°F (13°C)
Sunny Days	353 days/yr

Geography

Elevation	8,353 ft (2,546 m)
Area	261.3 sq mi (676.7 km²)
Population Density	3/sq mi
Coordinates	19.9372°N, 99.8378°W
Timezone	America/Mexico_City

Precipitation & Snow

Annual Rainfall 31.1"

18% below US avg

Snowfall 0.0"

Wettest Month (Jul) 6.97"

Driest Month (Feb) 0.35"

Air Quality

Earthquake History

123 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.6. Most recent: M2.9 on Sep 26, 2024.

Apr 22, 1994	7 km ESE of Palmar Chico, Mexico	M4.6	150 km
Apr 5, 2022	17 km NNW of Tuzantla, Mexico	M4.5	109 km
Apr 30, 2006	5 km SSE of San Diego de Alcalá, Mexico	M4.2	105 km
Mar 15, 1998	2 km NE of Macutzio, Mexico	M4.2	71 km
Mar 12, 2000	1 km SE of Teocalco, Mexico	M4.1	61 km
Jul 17, 2012	12 km NNW of Ixcapuzalco, Mexico	M4.1	147 km
Jul 25, 2002	13 km SW of Agua Zarca, Mexico	M4.1	150 km
Sep 23, 2013	2 km ENE of Chilcuautla, Mexico	M4.0	80 km
Oct 11, 1990	8 km NW of Pinal de Amoles, Mexico	M4.0	140 km
Aug 7, 2005	2 km W of San Isidro, Mexico	M4.0	129 km
May 30, 2007	4 km SSW of Lomas de Tepemecatl, Mexico	M4.0	102 km
Apr 17, 2010	5 km SSE of Pozuelos, Mexico	M4.0	101 km
May 20, 2010	3 km N of La Estancia, Mexico	M3.9	108 km
Jul 21, 2007	1 km W of Valle Verde, Mexico	M3.9	76 km
Mar 2, 2008	1 km NNW of Camémbaro, Mexico	M3.9	81 km
May 23, 1998	3 km SSW of Tequexquináhuac, Mexico	M3.8	118 km
Jul 5, 2002	5 km NNE of San Pedro Tenayac, Mexico	M3.8	100 km
Apr 16, 2005	2 km WNW of Santa María Chimalhuacán, Mexico	M3.8	107 km
Oct 7, 1999	4 km SSE of Queréndaro, Mexico	M3.8	110 km
Feb 6, 2008	1 km NW of Concepción la Venta, Mexico	M3.7	43 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

12 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: John (2024).

Year	Name	Category	Closest
2024	John	Category 1	293 km
2023	Otis	Category 2	254 km
2021	Grace	Category 3	232 km
2021	Rick	Category 2	298 km
2017	Katia	Category 1	295 km
2007	Dean	Category 2	272 km
2007	Lorenzo	Category 1	292 km
1996	Boris	Category 1	284 km
1996	Dolly	Category 1	289 km
1993	Gert	Category 2	206 km
1990	Diana	Category 2	276 km
1988	Debby	Category 1	278 km

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

Nearby Volcanoes

6 volcanoes within 200 km. Closest: Zitacuaro-Valle de Bravo (74 km).

Name	Type	Elevation	Last Eruption	Distance
Zitacuaro-Valle de Bravo	Caldera	3,500 m (11,483 ft)	-3050	74 km
Toluca, Nevado de	Stratovolcano	4,680 m (15,354 ft)	-1350	93 km
Chichinautzin	Volcanic field	3,930 m (12,894 ft)	400	121 km
Papayo	Lava dome	3,600 m (11,811 ft)	Unknown	138 km
Iztaccihuatl	Stratovolcano	5,230 m (17,159 ft)	Unknown	151 km
Popocatepetl	Stratovolcano(es)	5,393 m (17,694 ft)	2020	163 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	47°F (8°C)	0.6 in	Coldest
February	52°F (11°C)	0.4 in	Driest
March	55°F (13°C)	0.4 in
April	58°F (15°C)	0.9 in
May	60°F (16°C)	2.2 in	Warmest
June	60°F (15°C)	5.2 in
July	55°F (13°C)	7.0 in	Wettest
August	58°F (14°C)	5.6 in
September	58°F (14°C)	5.0 in
October	55°F (13°C)	2.5 in
November	53°F (12°C)	0.7 in
December	51°F (10°C)	0.4 in

San Ildefonso (San Ildefonso Yolotepec) has a seasonal temperature swing of 13°F / from 47°F in January to 60°F in May. Total annual precipitation is 30.8 inches, with July being the wettest month (7.0") and February the driest (0.4").

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