Tepetlapa Weather Records (MXN00012167)

Record envelope, standing records and threshold days for Tepetlapa (MXN00012167), Mexico, with 39 years of record.

Key Facts for Tepetlapa

Tepetlapa (MXN00012167) is a weather station in Mexico at 18.55 latitude and -99.42 longitude, 1,022 m (3,353 ft) above sea level.
The station reports from 1975 to 2013, 39 years of record.
1,464 records set at Tepetlapa still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Tepetlapa set a daily record precipitation of 39.9 mm (1.6 in) on 17 July 2013.

About the Station

Location: Mexico, 18.55 latitude, -99.42 longitude.
Elevation: 1,022 m (3,353 ft).
Period of record: 1975 to 2013, 39 years.
Eligible elements: tmax, tmin, 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 Tepetlapa. 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 Tepetlapa, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	33.9 C (93.0 F)	2.2 C (36.0 F)	n/a	n/a
Feb	36.7 C (98.1 F)	5.0 C (41.0 F)	n/a	n/a
Mar	37.8 C (100.0 F)	5.6 C (42.1 F)	n/a	n/a
Apr	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
May	40.0 C (104.0 F)	10.0 C (50.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	10.0 C (50.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	6.7 C (44.1 F)	n/a	n/a
Aug	32.8 C (91.0 F)	10.0 C (50.0 F)	n/a	n/a
Sep	33.9 C (93.0 F)	7.8 C (46.0 F)	n/a	n/a
Oct	32.8 C (91.0 F)	6.7 C (44.1 F)	n/a	n/a
Nov	33.3 C (91.9 F)	2.8 C (37.0 F)	n/a	n/a
Dec	32.8 C (91.0 F)	3.9 C (39.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tepetlapa still stand. 1997 holds the most, with 108.

Standing records at Tepetlapa by the year they were set
Year set	Standing records
1975	38
1976	24
1977	25
1978	26
1979	30
1980	26
1981	26
1982	53
1983	52
1984	44
1985	18
1986	44
1987	53
1988	30
1989	26
1990	26
1991	30
1992	33
1993	38
1994	44
1995	36
1996	18
1997	108
1998	79
1999	79
2000	14
2002	74
2003	70
2004	96
2005	55
2006	16
2007	4
2008	2
2009	12
2010	33
2011	35
2012	39
2013	8

All-Time Record Progression

1 new records

1 all-time records were set at Tepetlapa between 31 August 2012 and 31 August 2012. Each dot is a new record.

Wettest Day of Each Month

Aug: 140.0 mm (5.5 in)

The wettest day on record for each calendar month at Tepetlapa. The most was 140.0 mm (5.5 in) on 31 August 2012.

Record daily precipitation for each month at Tepetlapa
Month	Record daily precipitation (mm)	Date
Jan	41.7 mm (1.6 in)	25 January 1980
Feb	30.0 mm (1.2 in)	6 February 2010
Mar	27.9 mm (1.1 in)	16 March 1978
Apr	56.4 mm (2.2 in)	25 April 1990
May	82.3 mm (3.2 in)	30 May 1995
Jun	130.6 mm (5.1 in)	14 June 1994
Jul	138.4 mm (5.4 in)	22 July 1996
Aug	140.0 mm (5.5 in)	31 August 2012
Sep	89.2 mm (3.5 in)	18 September 2001
Oct	95.3 mm (3.8 in)	10 October 2002
Nov	56.9 mm (2.2 in)	7 November 1990
Dec	26.4 mm (1.0 in)	9 December 1978

Period of Record Coverage

1975 to 2013

38 years of record at Tepetlapa, 1975 to 2013. 13 years have data for under 90 percent of days and are left out of rankings: 1975, 1997, 1998, 1999, 2000, 2002, 2003, 2008 and others.

Days with data per year at Tepetlapa
Year	Days with data	Share of year	Complete
1975	160	44%	No
1976	366	100%	Yes
1977	365	100%	Yes
1978	364	100%	Yes
1979	364	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	364	100%	Yes
1990	364	100%	Yes
1991	365	100%	Yes
1992	363	99%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	313	86%	No
1998	321	88%	No
1999	181	50%	No
2000	30	8%	No
2002	138	38%	No
2003	92	25%	No
2004	362	99%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	312	85%	No
2009	262	72%	No
2010	233	64%	No
2011	244	67%	No
2012	187	51%	No
2013	126	35%	No

Latest Records

Latest records at Tepetlapa
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 July 2013	Tepetlapa, MX	daily rain	39.9 mm (1.6 in)	4.6 mm (0.18 in)	12 years	8 of 100 (Routine)
12 June 2013	Tepetlapa, MX	daily rain	50.8 mm (2.0 in)	15.7 mm (0.6 in)	24 years	17 of 100 (Routine)
26 May 2013	Tepetlapa, MX	monthly low min (Tie)	10.0 C (50.0 F)	tie	16 years	4 of 100 (Routine)
25 May 2013	Tepetlapa, MX	monthly low min (Tie)	10.0 C (50.0 F)	tie	16 years	4 of 100 (Routine)
24 May 2013	Tepetlapa, MX	monthly low min (Tie)	10.0 C (50.0 F)	tie	16 years	4 of 100 (Routine)
23 May 2013	Tepetlapa, MX	daily rain	30.5 mm (1.2 in)	23.6 mm (0.9 in)	26 years	25 of 100 (Routine)
23 May 2013	Tepetlapa, MX	monthly low min (Tie)	10.0 C (50.0 F)	tie	16 years	4 of 100 (Routine)
16 May 2013	Tepetlapa, MX	daily rain	36.6 mm (1.4 in)	16.8 mm (0.7 in)	4 years	14 of 100 (Routine)
14 May 2013	Tepetlapa, MX	monthly low min (Tie)	10.0 C (50.0 F)	tie	16 years	4 of 100 (Routine)
11 May 2013	Tepetlapa, MX	daily low min (Tie)	10.6 C (51.1 F)	tie	16 years	1 of 100 (Routine)
10 May 2013	Tepetlapa, MX	daily low min (Tie)	10.6 C (51.1 F)	tie	16 years	1 of 100 (Routine)
8 May 2013	Tepetlapa, MX	daily low min (Tie)	10.6 C (51.1 F)	tie	16 years	1 of 100 (Routine)
6 May 2013	Tepetlapa, MX	monthly low min (Tie)	10.0 C (50.0 F)	tie	15 years	4 of 100 (Routine)
5 May 2013	Tepetlapa, MX	monthly low min (Tie)	10.0 C (50.0 F)	tie	15 years	4 of 100 (Routine)
4 May 2013	Tepetlapa, MX	daily low min (Tie)	10.6 C (51.1 F)	tie	16 years	1 of 100 (Routine)
3 May 2013	Tepetlapa, MX	daily low min (Tie)	10.6 C (51.1 F)	tie	16 years	1 of 100 (Routine)
1 May 2013	Tepetlapa, MX	daily low min (Tie)	10.6 C (51.1 F)	tie	16 years	1 of 100 (Routine)
24 April 2013	Tepetlapa, MX	daily rain	3.8 mm (0.15 in)	3.0 mm (0.12 in)	36 years	16 of 100 (Routine)
30 March 2013	Tepetlapa, MX	daily low min (Tie)	10.0 C (50.0 F)	tie	16 years	1 of 100 (Routine)
29 March 2013	Tepetlapa, MX	daily low min (Tie)	10.0 C (50.0 F)	tie	16 years	1 of 100 (Routine)

Climate Trend

25 complete years, 1976 to 2007

One stripe for each of 25 complete years at Tepetlapa, 1976 to 2007. Blue stripes are years cooler than the station's own mean of 22.4 C (72.3 F); red stripes are warmer. The coolest year was 1976, at 21.4 C (70.5 F), and the warmest was 2005, at 23.2 C (73.7 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Tepetlapa as warming stripes, 1976 to 2007
Year	Annual mean temperature	Difference from the station mean
1976	21.4 C	-0.99 C
1977	21.6 C	-0.83 C
1978	22.0 C	-0.38 C
1979	22.0 C	-0.34 C
1980	22.3 C	-0.07 C
1981	22.0 C	-0.43 C
1982	22.9 C	+0.52 C
1983	22.5 C	+0.15 C
1984	22.3 C	-0.05 C
1985	22.3 C	-0.12 C
1986	22.6 C	+0.19 C
1987	22.4 C	+0.06 C
1988	22.7 C	+0.31 C
1989	22.2 C	-0.16 C
1990	22.3 C	-0.12 C
1991	22.9 C	+0.50 C
1992	22.3 C	-0.07 C
1993	22.9 C	+0.53 C
1994	22.3 C	-0.07 C
1995	23.0 C	+0.58 C
1996	22.0 C	-0.37 C
2004	22.1 C	-0.32 C
2005	23.2 C	+0.81 C
2006	22.8 C	+0.41 C
2007	22.7 C	+0.30 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1975 to 2013

Yearly extremes at Tepetlapa: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	2003	36.7 C (98.1 F)	38
Coldest night (TNn)	2.2 C (36.0 F)	1986	5.6 C (42.1 F)	38
Wettest day (Rx1day)	140.0 mm (5.5 in)	2012	79.8 mm (3.1 in)	39
Wettest five days (Rx5day)	300.3 mm (11.8 in)	2002	141.8 mm (5.6 in)	39
Longest dry spell (CDD)	155 days	1998	86 days	39

Hottest day (TXx)

The hottest day of the year at Tepetlapa, 1975 to 2013. The record is 40.0 C (104.0 F) in 2003, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Tepetlapa by year
Year	Hottest day (TXx)
1975	32.8 C (91.0 F)
1976	35.0 C (95.0 F)
1977	36.7 C (98.1 F)
1978	38.3 C (100.9 F)
1979	35.6 C (96.1 F)
1980	37.2 C (99.0 F)
1981	36.1 C (97.0 F)
1982	37.2 C (99.0 F)
1983	37.8 C (100.0 F)
1984	37.8 C (100.0 F)
1985	36.1 C (97.0 F)
1986	38.3 C (100.9 F)
1987	36.1 C (97.0 F)
1988	39.4 C (102.9 F)
1989	36.7 C (98.1 F)
1990	36.1 C (97.0 F)
1991	38.3 C (100.9 F)
1992	37.2 C (99.0 F)
1993	37.8 C (100.0 F)
1994	35.0 C (95.0 F)
1995	36.7 C (98.1 F)
1996	36.1 C (97.0 F)
1997	35.0 C (95.0 F)
1998	36.7 C (98.1 F)
1999	30.0 C (86.0 F)
2000	30.0 C (86.0 F)
2001	n/a
2002	32.8 C (91.0 F)
2003	40.0 C (104.0 F)
2004	38.9 C (102.0 F)
2005	40.0 C (104.0 F)
2006	37.8 C (100.0 F)
2007	37.8 C (100.0 F)
2008	37.8 C (100.0 F)
2009	36.7 C (98.1 F)
2010	38.9 C (102.0 F)
2011	37.8 C (100.0 F)
2012	36.7 C (98.1 F)
2013	35.6 C (96.1 F)

Coldest night (TNn)

The coldest night of the year at Tepetlapa, 1975 to 2013. The record is 2.2 C (36.0 F) in 1986, marked on the chart; the median year is 5.6 C (42.1 F).

Coldest night (TNn) at Tepetlapa by year
Year	Coldest night (TNn)
1975	5.0 C (41.0 F)
1976	5.0 C (41.0 F)
1977	5.6 C (42.1 F)
1978	6.1 C (43.0 F)
1979	6.1 C (43.0 F)
1980	5.6 C (42.1 F)
1981	5.6 C (42.1 F)
1982	5.0 C (41.0 F)
1983	5.0 C (41.0 F)
1984	5.6 C (42.1 F)
1985	8.3 C (46.9 F)
1986	2.2 C (36.0 F)
1987	3.9 C (39.0 F)
1988	4.4 C (39.9 F)
1989	5.0 C (41.0 F)
1990	6.7 C (44.1 F)
1991	6.7 C (44.1 F)
1992	5.0 C (41.0 F)
1993	7.8 C (46.0 F)
1994	8.9 C (48.0 F)
1995	6.7 C (44.1 F)
1996	5.6 C (42.1 F)
1997	6.7 C (44.1 F)
1998	7.8 C (46.0 F)
1999	7.8 C (46.0 F)
2000	10.0 C (50.0 F)
2001	n/a
2002	2.8 C (37.0 F)
2003	7.8 C (46.0 F)
2004	5.0 C (41.0 F)
2005	3.9 C (39.0 F)
2006	5.0 C (41.0 F)
2007	8.9 C (48.0 F)
2008	5.0 C (41.0 F)
2009	5.6 C (42.1 F)
2010	3.9 C (39.0 F)
2011	5.0 C (41.0 F)
2012	5.0 C (41.0 F)
2013	7.8 C (46.0 F)

Wettest day (Rx1day)

The wettest day of the year at Tepetlapa, 1975 to 2013. The record is 140.0 mm (5.5 in) in 2012, marked on the chart; the median year is 79.8 mm (3.1 in).

Wettest day (Rx1day) at Tepetlapa by year
Year	Wettest day (Rx1day)
1975	63.8 mm (2.5 in)
1976	103.4 mm (4.1 in)
1977	76.7 mm (3.0 in)
1978	96.8 mm (3.8 in)
1979	77.7 mm (3.1 in)
1980	64.3 mm (2.5 in)
1981	74.7 mm (2.9 in)
1982	51.3 mm (2.0 in)
1983	68.1 mm (2.7 in)
1984	121.9 mm (4.8 in)
1985	81.8 mm (3.2 in)
1986	113.3 mm (4.5 in)
1987	72.6 mm (2.9 in)
1988	84.8 mm (3.3 in)
1989	64.5 mm (2.5 in)
1990	83.8 mm (3.3 in)
1991	110.0 mm (4.3 in)
1992	70.4 mm (2.8 in)
1993	76.2 mm (3.0 in)
1994	130.6 mm (5.1 in)
1995	82.3 mm (3.2 in)
1996	138.4 mm (5.4 in)
1997	90.2 mm (3.6 in)
1998	85.1 mm (3.4 in)
1999	63.0 mm (2.5 in)
2000	93.0 mm (3.7 in)
2001	89.2 mm (3.5 in)
2002	95.3 mm (3.8 in)
2003	64.8 mm (2.6 in)
2004	70.9 mm (2.8 in)
2005	79.8 mm (3.1 in)
2006	79.8 mm (3.1 in)
2007	49.8 mm (2.0 in)
2008	68.8 mm (2.7 in)
2009	59.9 mm (2.4 in)
2010	80.3 mm (3.2 in)
2011	60.5 mm (2.4 in)
2012	140.0 mm (5.5 in)
2013	50.8 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tepetlapa, 1975 to 2013. The record is 300.3 mm (11.8 in) in 2002, marked on the chart; the median year is 141.8 mm (5.6 in).

Wettest five days (Rx5day) at Tepetlapa by year
Year	Wettest five days (Rx5day)
1975	92.0 mm (3.6 in)
1976	172.0 mm (6.8 in)
1977	154.4 mm (6.1 in)
1978	139.7 mm (5.5 in)
1979	109.2 mm (4.3 in)
1980	153.5 mm (6.0 in)
1981	162.1 mm (6.4 in)
1982	110.0 mm (4.3 in)
1983	104.7 mm (4.1 in)
1984	152.6 mm (6.0 in)
1985	158.7 mm (6.2 in)
1986	138.3 mm (5.4 in)
1987	135.7 mm (5.3 in)
1988	172.7 mm (6.8 in)
1989	133.8 mm (5.3 in)
1990	130.6 mm (5.1 in)
1991	230.9 mm (9.1 in)
1992	201.2 mm (7.9 in)
1993	150.6 mm (5.9 in)
1994	213.1 mm (8.4 in)
1995	179.1 mm (7.1 in)
1996	155.7 mm (6.1 in)
1997	141.0 mm (5.6 in)
1998	111.3 mm (4.4 in)
1999	141.8 mm (5.6 in)
2000	281.5 mm (11.1 in)
2001	201.2 mm (7.9 in)
2002	300.3 mm (11.8 in)
2003	64.8 mm (2.6 in)
2004	109.3 mm (4.3 in)
2005	129.8 mm (5.1 in)
2006	113.1 mm (4.5 in)
2007	103.1 mm (4.1 in)
2008	211.7 mm (8.3 in)
2009	138.2 mm (5.4 in)
2010	126.8 mm (5.0 in)
2011	164.3 mm (6.5 in)
2012	199.5 mm (7.9 in)
2013	125.7 mm (4.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tepetlapa, 1975 to 2013. The record is 155 days in 1998, marked on the chart; the median year is 86 days.

Longest dry spell (CDD) at Tepetlapa by year
Year	Longest dry spell (CDD)
1975	74 days
1976	100 days
1977	109 days
1978	74 days
1979	54 days
1980	69 days
1981	51 days
1982	110 days
1983	88 days
1984	114 days
1985	68 days
1986	99 days
1987	62 days
1988	83 days
1989	115 days
1990	52 days
1991	128 days
1992	57 days
1993	72 days
1994	131 days
1995	86 days
1996	123 days
1997	78 days
1998	155 days
1999	84 days
2000	70 days
2001	64 days
2002	134 days
2003	154 days
2004	59 days
2005	86 days
2006	114 days
2007	75 days
2008	117 days
2009	130 days
2010	110 days
2011	100 days
2012	63 days
2013	73 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.

Rainfall Return Levels

34 years, 1976 to 2012

A day with at least 79.3 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 168.6 mm (6.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Tepetlapa: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	79.3 mm (3.1 in)
5 years	99.9 mm (3.9 in)
10 years	114.8 mm (4.5 in)
25 years	135.1 mm (5.3 in)
50 years	151.4 mm (6.0 in)	Longer than the 34 years of record
100 years	168.6 mm (6.6 in)	Longer than the 34 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 34 years of values from 1976 to 2012.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 140.0 mm (5.5 in) in 2012; 138.4 mm (5.4 in) in 1996; 130.6 mm (5.1 in) in 1994.

Download the Data

Data for Tepetlapa standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tepetlapa 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).