San Mateo Tecoloapan Weather Records (MXN00015100)

Record envelope, standing records and threshold days for San Mateo Tecoloapan (MXN00015100), Mexico, with 44 years of record.

Key Facts for San Mateo Tecoloapan

San Mateo Tecoloapan (MXN00015100) is a weather station in Mexico at 19.57 latitude and -99.23 longitude, 2,285 m (7,496 ft) above sea level.
The station reports from 1969 to 2012, 44 years of record.
1,464 records set at San Mateo Tecoloapan still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
San Mateo Tecoloapan set a daily record precipitation of 33.8 mm (1.3 in) on 9 August 2012.

About the Station

Location: Mexico, 19.57 latitude, -99.23 longitude.
Elevation: 2,285 m (7,496 ft).
Period of record: 1969 to 2012, 44 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at San Mateo Tecoloapan. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at San Mateo Tecoloapan, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	22.8 C (73.0 F)	3.9 C (39.0 F)	n/a	n/a
Feb	23.9 C (75.0 F)	5.0 C (41.0 F)	n/a	n/a
Mar	30.0 C (86.0 F)	5.0 C (41.0 F)	n/a	n/a
Apr	30.6 C (87.1 F)	5.6 C (42.1 F)	n/a	n/a
May	31.7 C (89.1 F)	7.8 C (46.0 F)	n/a	n/a
Jun	30.6 C (87.1 F)	5.6 C (42.1 F)	n/a	n/a
Jul	26.7 C (80.1 F)	8.9 C (48.0 F)	n/a	n/a
Aug	27.8 C (82.0 F)	10.0 C (50.0 F)	n/a	n/a
Sep	27.8 C (82.0 F)	8.9 C (48.0 F)	n/a	n/a
Oct	25.6 C (78.1 F)	2.8 C (37.0 F)	n/a	n/a
Nov	25.0 C (77.0 F)	0.0 C (32.0 F)	n/a	n/a
Dec	25.0 C (77.0 F)	1.7 C (35.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Mateo Tecoloapan still stand. 2011 holds the most, with 793.

Wettest Day of Each Month

Sep: 79.8 mm (3.1 in)

The wettest day on record for each calendar month at San Mateo Tecoloapan. The most was 79.8 mm (3.1 in) on 19 September 1998.

Record daily precipitation for each month at San Mateo Tecoloapan
Month	Record daily precipitation (mm)	Date
Jan	21.8 mm (0.9 in)	17 January 1981
Feb	18.8 mm (0.7 in)	11 February 1979
Mar	42.2 mm (1.7 in)	30 March 1969
Apr	24.9 mm (1.0 in)	17 April 1981
May	48.8 mm (1.9 in)	24 May 1977
Jun	68.8 mm (2.7 in)	19 June 1970
Jul	74.9 mm (2.9 in)	9 July 1970
Aug	57.9 mm (2.3 in)	16 August 1976
Sep	79.8 mm (3.1 in)	19 September 1998
Oct	55.9 mm (2.2 in)	5 October 1978
Nov	15.0 mm (0.6 in)	9 November 1998
Dec	15.7 mm (0.6 in)	9 December 1978

Period of Record Coverage

2011 to 2012

2 years of record at San Mateo Tecoloapan, 2011 to 2012. 2 years have data for under 90 percent of days and are left out of rankings: 2011, 2012.

Latest Records

Latest records at San Mateo Tecoloapan
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 August 2012	San Mateo Tecoloapan, MX	daily rain	33.8 mm (1.3 in)	15.0 mm (0.6 in)	41 years	33 of 100 (Routine)
31 July 2012	San Mateo Tecoloapan, MX	daily rain (Tie)	22.9 mm (0.9 in)	tie	40 years	4 of 100 (Routine)
25 July 2012	San Mateo Tecoloapan, MX	daily rain (Tie)	14.0 mm (0.6 in)	tie	32 years	3 of 100 (Routine)
24 July 2012	San Mateo Tecoloapan, MX	daily rain	18.8 mm (0.7 in)	3.1 mm (0.12 in)	28 years	15 of 100 (Routine)
14 July 2012	San Mateo Tecoloapan, MX	daily rain	22.4 mm (0.9 in)	2.1 mm (0.08 in)	35 years	16 of 100 (Routine)
11 May 2012	San Mateo Tecoloapan, MX	daily rain	7.4 mm (0.29 in)	3.6 mm (0.14 in)	35 years	19 of 100 (Routine)
4 February 2012	San Mateo Tecoloapan, MX	daily rain	5.3 mm (0.21 in)	3.5 mm (0.14 in)	28 years	20 of 100 (Routine)
30 January 2012	San Mateo Tecoloapan, MX	daily rain	1.3 mm (0.05 in)	1.0 mm (0.04 in)	36 years	16 of 100 (Routine)
28 January 2012	San Mateo Tecoloapan, MX	daily rain	0.8 mm (0.03 in)	0.5 mm (0.02 in)	1 year	4 of 100 (Routine)
26 November 2011	San Mateo Tecoloapan, MX	daily rain	13.0 mm (0.5 in)	12.2 mm (0.5 in)	38 years	20 of 100 (Routine)
20 July 2011	San Mateo Tecoloapan, MX	daily rain	20.3 mm (0.8 in)	2.0 mm (0.08 in)	38 years	17 of 100 (Routine)
3 April 2011	San Mateo Tecoloapan, MX	daily rain	0.3 mm (0.01 in)	0.3 mm (0.01 in)	41 years	16 of 100 (Routine)

Extremes by Year

1969 to 2012

Yearly extremes at San Mateo Tecoloapan: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	31.7 C (89.1 F)	2011	31.2 C (88.1 F)	2
Coldest night (TNn)	0.0 C (32.0 F)	2011	2.0 C (35.5 F)	2
Wettest day (Rx1day)	79.8 mm (3.1 in)	1998	35.8 mm (1.4 in)	34
Wettest five days (Rx5day)	196.4 mm (7.7 in)	1998	67.4 mm (2.7 in)	34
Longest dry spell (CDD)	156 days	2008	66 days	34

Hottest day (TXx)

The hottest day of the year at San Mateo Tecoloapan, 1969 to 2012. The record is 31.7 C (89.1 F) in 2011, marked on the chart; the median year is 31.2 C (88.1 F).

Hottest day (TXx) at San Mateo Tecoloapan by year
Year	Hottest day (TXx)
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	31.7 C (89.1 F)
2012	30.6 C (87.1 F)

Coldest night (TNn)

The coldest night of the year at San Mateo Tecoloapan, 1969 to 2012. The record is 0.0 C (32.0 F) in 2011, marked on the chart; the median year is 2.0 C (35.5 F).

Coldest night (TNn) at San Mateo Tecoloapan by year
Year	Coldest night (TNn)
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	0.0 C (32.0 F)
2012	3.9 C (39.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Mateo Tecoloapan, 1969 to 2012. The record is 79.8 mm (3.1 in) in 1998, marked on the chart; the median year is 35.8 mm (1.4 in).

Wettest day (Rx1day) at San Mateo Tecoloapan by year
Year	Wettest day (Rx1day)
1969	42.2 mm (1.7 in)
1970	74.9 mm (2.9 in)
1971	36.8 mm (1.4 in)
1972	49.8 mm (2.0 in)
1973	33.8 mm (1.3 in)
1974	48.3 mm (1.9 in)
1975	29.5 mm (1.2 in)
1976	57.9 mm (2.3 in)
1977	54.9 mm (2.2 in)
1978	55.9 mm (2.2 in)
1979	46.0 mm (1.8 in)
1980	41.9 mm (1.6 in)
1981	48.8 mm (1.9 in)
1982	34.8 mm (1.4 in)
1983	54.9 mm (2.2 in)
1984	36.8 mm (1.4 in)
1985	68.8 mm (2.7 in)
1986	39.9 mm (1.6 in)
1996	17.8 mm (0.7 in)
1997	19.8 mm (0.8 in)
1998	79.8 mm (3.1 in)
1999	15.0 mm (0.6 in)
2001	19.8 mm (0.8 in)
2002	23.9 mm (0.9 in)
2003	39.9 mm (1.6 in)
2004	5.8 mm (0.23 in)
2005	3.6 mm (0.14 in)
2006	3.8 mm (0.15 in)
2007	5.6 mm (0.22 in)
2008	4.8 mm (0.19 in)
2009	8.9 mm (0.35 in)
2010	6.4 mm (0.25 in)
2011	20.3 mm (0.8 in)
2012	33.8 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Mateo Tecoloapan, 1969 to 2012. The record is 196.4 mm (7.7 in) in 1998, marked on the chart; the median year is 67.4 mm (2.7 in).

Wettest five days (Rx5day) at San Mateo Tecoloapan by year
Year	Wettest five days (Rx5day)
1969	85.1 mm (3.4 in)
1970	121.6 mm (4.8 in)
1971	89.9 mm (3.5 in)
1972	119.5 mm (4.7 in)
1973	67.8 mm (2.7 in)
1974	101.4 mm (4.0 in)
1975	64.9 mm (2.6 in)
1976	137.2 mm (5.4 in)
1977	80.3 mm (3.2 in)
1978	97.6 mm (3.8 in)
1979	73.4 mm (2.9 in)
1980	66.9 mm (2.6 in)
1981	88.3 mm (3.5 in)
1982	69.3 mm (2.7 in)
1983	113.3 mm (4.5 in)
1984	108.5 mm (4.3 in)
1985	138.7 mm (5.5 in)
1986	79.6 mm (3.1 in)
1996	27.7 mm (1.1 in)
1997	30.5 mm (1.2 in)
1998	196.4 mm (7.7 in)
1999	17.9 mm (0.7 in)
2001	51.4 mm (2.0 in)
2002	57.5 mm (2.3 in)
2003	42.8 mm (1.7 in)
2004	13.7 mm (0.5 in)
2005	13.2 mm (0.5 in)
2006	10.1 mm (0.4 in)
2007	7.4 mm (0.29 in)
2008	7.9 mm (0.31 in)
2009	26.7 mm (1.1 in)
2010	10.7 mm (0.4 in)
2011	24.6 mm (1.0 in)
2012	59.0 mm (2.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Mateo Tecoloapan, 1969 to 2012. The record is 156 days in 2008, marked on the chart; the median year is 66 days.

Longest dry spell (CDD) at San Mateo Tecoloapan by year
Year	Longest dry spell (CDD)
1969	74 days
1970	63 days
1971	76 days
1972	58 days
1973	57 days
1974	70 days
1975	65 days
1976	40 days
1977	49 days
1978	43 days
1979	41 days
1980	40 days
1981	37 days
1982	74 days
1983	110 days
1984	92 days
1985	85 days
1986	90 days
1996	44 days
1997	10 days
1998	52 days
1999	51 days
2001	116 days
2002	64 days
2003	109 days
2004	116 days
2005	113 days
2006	117 days
2007	67 days
2008	156 days
2009	69 days
2010	57 days
2011	106 days
2012	65 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for San Mateo Tecoloapan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Mateo Tecoloapan threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Year	Days with data	Share of year	Complete
2011	281	77%	No
2012	274	75%	No