Santiago Tulantepec Weather Records (MXN00013031)

Record envelope, standing records and threshold days for Santiago Tulantepec (MXN00013031), Mexico, with 47 years of record.

Key Facts for Santiago Tulantepec

Santiago Tulantepec (MXN00013031) is a weather station in Mexico at 20.03 latitude and -98.37 longitude, 2,179 m (7,148 ft) above sea level.
The station reports from 1966 to 2012, 47 years of record.
1,464 records set at Santiago Tulantepec still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Santiago Tulantepec tied a daily record low minimum temperature of 0.0 C (32.0 F) on 25 December 2012.

About the Station

Location: Mexico, 20.03 latitude, -98.37 longitude.
Elevation: 2,179 m (7,148 ft).
Period of record: 1966 to 2012, 47 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 Santiago Tulantepec. 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 Santiago Tulantepec, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.0 C (86.0 F)	-5.0 C (23.0 F)	n/a	n/a
Feb	32.8 C (91.0 F)	-8.3 C (17.1 F)	n/a	n/a
Mar	33.9 C (93.0 F)	-4.4 C (24.1 F)	n/a	n/a
Apr	32.8 C (91.0 F)	0.0 C (32.0 F)	n/a	n/a
May	35.6 C (96.1 F)	0.0 C (32.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	0.6 C (33.1 F)	n/a	n/a
Jul	30.6 C (87.1 F)	1.7 C (35.1 F)	n/a	n/a
Aug	30.0 C (86.0 F)	0.0 C (32.0 F)	n/a	n/a
Sep	30.0 C (86.0 F)	0.0 C (32.0 F)	n/a	n/a
Oct	28.9 C (84.0 F)	-1.1 C (30.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-5.0 C (23.0 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-4.4 C (24.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Santiago Tulantepec still stand. 2000 holds the most, with 106.

Standing records at Santiago Tulantepec by the year they were set
Year set	Standing records
1968	20
1969	57
1970	45
1971	35
1972	45
1973	72
1974	39
1975	34
1976	40
1977	53
1978	43
1979	55
1980	36
1981	32
1982	41
1983	72
1984	45
1985	16
1986	24
1987	77
1988	26
1990	26
1991	33
1992	6
1993	19
1996	11
1997	60
1998	53
1999	98
2000	106
2005	24
2006	25
2007	13
2008	19
2009	21
2010	7
2011	12
2012	24

All-Time Record Progression

1 new records

1 all-time records were set at Santiago Tulantepec between 9 August 2012 and 9 August 2012. Each dot is a new record.

Wettest Day of Each Month

Aug: 99.8 mm (3.9 in)

The wettest day on record for each calendar month at Santiago Tulantepec. The most was 99.8 mm (3.9 in) on 9 August 2012.

Record daily precipitation for each month at Santiago Tulantepec
Month	Record daily precipitation (mm)	Date
Jan	25.4 mm (1.0 in)	10 January 1967
Feb	43.9 mm (1.7 in)	4 February 2007
Mar	27.9 mm (1.1 in)	16 March 1978
Apr	40.9 mm (1.6 in)	29 April 1968
May	39.9 mm (1.6 in)	3 May 1980
Jun	89.4 mm (3.5 in)	30 June 2011
Jul	83.8 mm (3.3 in)	27 July 1980
Aug	99.8 mm (3.9 in)	9 August 2012
Sep	77.0 mm (3.0 in)	27 September 2007
Oct	89.4 mm (3.5 in)	8 October 1976
Nov	31.0 mm (1.2 in)	26 November 1980
Dec	15.7 mm (0.6 in)	4 December 2007

Period of Record Coverage

1968 to 2012

38 years of record at Santiago Tulantepec, 1968 to 2012. 7 years have data for under 90 percent of days and are left out of rankings: 1968, 1988, 1992, 1996, 2006, 2009, 2010.

Days with data per year at Santiago Tulantepec
Year	Days with data	Share of year	Complete
1968	306	84%	No
1969	364	100%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	337	92%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	361	99%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	363	99%	Yes
1982	364	100%	Yes
1983	364	100%	Yes
1984	366	100%	Yes
1985	363	99%	Yes
1986	364	100%	Yes
1987	365	100%	Yes
1988	305	83%	No
1990	333	91%	Yes
1991	361	99%	Yes
1992	212	58%	No
1993	364	100%	Yes
1996	214	58%	No
1997	333	91%	Yes
1998	333	91%	Yes
1999	354	97%	Yes
2000	330	90%	Yes
2005	365	100%	Yes
2006	212	58%	No
2007	365	100%	Yes
2008	365	100%	Yes
2009	301	82%	No
2010	273	75%	No
2011	361	99%	Yes
2012	361	99%	Yes

Latest Records

Latest records at Santiago Tulantepec
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 December 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	40 years	4 of 100 (Routine)
23 December 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	40 years	4 of 100 (Routine)
8 December 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	12 years	1 of 100 (Routine)
6 December 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	12 years	1 of 100 (Routine)
3 December 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	25 years	2 of 100 (Routine)
19 November 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.6 C (33.1 F)	tie	13 years	1 of 100 (Routine)
13 November 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	13 years	1 of 100 (Routine)
12 November 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	37 years	3 of 100 (Routine)
11 November 2012	Santiago Tulantepec, MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	37 years	16 of 100 (Routine)
28 October 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	5 years	1 of 100 (Routine)
26 October 2012	Santiago Tulantepec, MX	monthly low min (Tie)	-1.1 C (30.0 F)	tie	25 years	5 of 100 (Routine)
16 October 2012	Santiago Tulantepec, MX	monthly low min (Tie)	-1.1 C (30.0 F)	tie	24 years	5 of 100 (Routine)
15 October 2012	Santiago Tulantepec, MX	daily low min (Tie)	0.6 C (33.1 F)	tie	25 years	2 of 100 (Routine)
8 October 2012	Santiago Tulantepec, MX	daily low min (Tie)	1.7 C (35.1 F)	tie	12 years	1 of 100 (Routine)
7 October 2012	Santiago Tulantepec, MX	daily low min	0.0 C (32.0 F)	1.7 C (3.1 F)	4 years	10 of 100 (Routine)
6 October 2012	Santiago Tulantepec, MX	daily low min	0.0 C (32.0 F)	1.7 C (3.1 F)	4 years	10 of 100 (Routine)
5 October 2012	Santiago Tulantepec, MX	daily low min	0.0 C (32.0 F)	1.7 C (3.1 F)	12 years	12 of 100 (Routine)
4 October 2012	Santiago Tulantepec, MX	monthly low min (Tie)	-1.1 C (30.0 F)	tie	24 years	5 of 100 (Routine)
5 September 2012	Santiago Tulantepec, MX	daily high max (Tie)	25.0 C (77.0 F)	tie	40 years	4 of 100 (Routine)
23 August 2012	Santiago Tulantepec, MX	daily rain	17.8 mm (0.7 in)	5.4 mm (0.21 in)	45 years	20 of 100 (Routine)

Climate Trend

26 complete years, 1969 to 2012

One stripe for each of 26 complete years at Santiago Tulantepec, 1969 to 2012. Blue stripes are years cooler than the station's own mean of 15.3 C (59.6 F); red stripes are warmer. The coolest year was 1999, at 11.6 C (52.8 F), and the warmest was 1983, at 16.3 C (61.3 F). The strongest colour marks a difference of 3.8 C (6.8 F).

Annual mean temperature at Santiago Tulantepec as warming stripes, 1969 to 2012
Year	Annual mean temperature	Difference from the station mean
1969	15.8 C	+0.49 C
1970	15.3 C	-0.01 C
1971	15.5 C	+0.19 C
1972	15.7 C	+0.31 C
1973	16.0 C	+0.62 C
1974	15.2 C	-0.15 C
1976	14.9 C	-0.41 C
1977	15.7 C	+0.35 C
1978	15.7 C	+0.39 C
1979	15.6 C	+0.25 C
1980	15.8 C	+0.40 C
1981	15.6 C	+0.21 C
1982	16.1 C	+0.78 C
1983	16.3 C	+0.90 C
1984	15.6 C	+0.24 C
1985	15.4 C	+0.02 C
1986	15.5 C	+0.15 C
1987	15.8 C	+0.42 C
1991	16.0 C	+0.63 C
1993	15.8 C	+0.48 C
1999	11.6 C	-3.80 C
2005	15.7 C	+0.39 C
2007	15.3 C	-0.01 C
2008	15.1 C	-0.29 C
2011	14.5 C	-0.89 C
2012	13.6 C	-1.77 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

1966 to 2012

Yearly extremes at Santiago Tulantepec: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.6 C (96.1 F)	1983	31.7 C (89.1 F)	38
Coldest night (TNn)	-8.3 C (17.1 F)	1972	-1.6 C (29.0 F)	38
Wettest day (Rx1day)	99.8 mm (3.9 in)	2012	39.9 mm (1.6 in)	40
Wettest five days (Rx5day)	178.9 mm (7.0 in)	2011	83.7 mm (3.3 in)	40
Longest dry spell (CDD)	218 days	1999	49 days	40

Hottest day (TXx)

The hottest day of the year at Santiago Tulantepec, 1966 to 2012. The record is 35.6 C (96.1 F) in 1983, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Santiago Tulantepec by year
Year	Hottest day (TXx)
1966	n/a
1967	n/a
1968	30.0 C (86.0 F)
1969	31.7 C (89.1 F)
1970	32.8 C (91.0 F)
1971	32.8 C (91.0 F)
1972	31.7 C (89.1 F)
1973	33.9 C (93.0 F)
1974	31.7 C (89.1 F)
1975	32.8 C (91.0 F)
1976	30.6 C (87.1 F)
1977	33.9 C (93.0 F)
1978	32.8 C (91.0 F)
1979	32.8 C (91.0 F)
1980	31.7 C (89.1 F)
1981	31.7 C (89.1 F)
1982	35.0 C (95.0 F)
1983	35.6 C (96.1 F)
1984	32.8 C (91.0 F)
1985	31.1 C (88.0 F)
1986	31.7 C (89.1 F)
1987	31.7 C (89.1 F)
1988	32.8 C (91.0 F)
1990	33.9 C (93.0 F)
1991	32.8 C (91.0 F)
1992	30.6 C (87.1 F)
1993	31.7 C (89.1 F)
1996	26.7 C (80.1 F)
1997	32.8 C (91.0 F)
1998	31.7 C (89.1 F)
1999	31.7 C (89.1 F)
2000	32.8 C (91.0 F)
2005	33.3 C (91.9 F)
2006	31.7 C (89.1 F)
2007	31.7 C (89.1 F)
2008	32.8 C (91.0 F)
2009	32.8 C (91.0 F)
2010	31.7 C (89.1 F)
2011	31.7 C (89.1 F)
2012	30.0 C (86.0 F)

Coldest night (TNn)

The coldest night of the year at Santiago Tulantepec, 1966 to 2012. The record is -8.3 C (17.1 F) in 1972, marked on the chart; the median year is -1.6 C (29.0 F).

Coldest night (TNn) at Santiago Tulantepec by year
Year	Coldest night (TNn)
1966	n/a
1967	n/a
1968	0.0 C (32.0 F)
1969	-1.1 C (30.0 F)
1970	-2.2 C (28.0 F)
1971	0.0 C (32.0 F)
1972	-8.3 C (17.1 F)
1973	-5.0 C (23.0 F)
1974	-4.4 C (24.1 F)
1975	-5.0 C (23.0 F)
1976	-5.0 C (23.0 F)
1977	0.0 C (32.0 F)
1978	0.0 C (32.0 F)
1979	0.0 C (32.0 F)
1980	0.0 C (32.0 F)
1981	-1.1 C (30.0 F)
1982	-3.3 C (26.1 F)
1983	-2.2 C (28.0 F)
1984	-2.8 C (27.0 F)
1985	-2.2 C (28.0 F)
1986	-0.6 C (30.9 F)
1987	-4.4 C (24.1 F)
1988	-1.1 C (30.0 F)
1990	-2.2 C (28.0 F)
1991	0.0 C (32.0 F)
1992	0.0 C (32.0 F)
1993	0.0 C (32.0 F)
1996	1.7 C (35.1 F)
1997	0.0 C (32.0 F)
1998	-3.3 C (26.1 F)
1999	0.0 C (32.0 F)
2000	-4.4 C (24.1 F)
2005	-2.2 C (28.0 F)
2006	-4.4 C (24.1 F)
2007	-1.1 C (30.0 F)
2008	-1.1 C (30.0 F)
2009	-2.2 C (28.0 F)
2010	0.0 C (32.0 F)
2011	-5.0 C (23.0 F)
2012	-3.3 C (26.1 F)

Wettest day (Rx1day)

The wettest day of the year at Santiago Tulantepec, 1966 to 2012. The record is 99.8 mm (3.9 in) in 2012, marked on the chart; the median year is 39.9 mm (1.6 in).

Wettest day (Rx1day) at Santiago Tulantepec by year
Year	Wettest day (Rx1day)
1966	37.8 mm (1.5 in)
1967	30.5 mm (1.2 in)
1968	40.9 mm (1.6 in)
1969	39.9 mm (1.6 in)
1970	32.8 mm (1.3 in)
1971	27.9 mm (1.1 in)
1972	24.4 mm (1.0 in)
1973	32.8 mm (1.3 in)
1974	51.8 mm (2.0 in)
1975	56.9 mm (2.2 in)
1976	89.4 mm (3.5 in)
1977	30.0 mm (1.2 in)
1978	35.8 mm (1.4 in)
1979	39.9 mm (1.6 in)
1980	83.8 mm (3.3 in)
1981	49.8 mm (2.0 in)
1982	22.9 mm (0.9 in)
1983	65.8 mm (2.6 in)
1984	31.8 mm (1.3 in)
1985	47.0 mm (1.9 in)
1986	21.8 mm (0.9 in)
1987	64.8 mm (2.6 in)
1988	40.9 mm (1.6 in)
1990	30.0 mm (1.2 in)
1991	37.8 mm (1.5 in)
1992	32.8 mm (1.3 in)
1993	23.9 mm (0.9 in)
1996	40.4 mm (1.6 in)
1997	24.4 mm (1.0 in)
1998	54.9 mm (2.2 in)
1999	64.8 mm (2.6 in)
2000	33.8 mm (1.3 in)
2005	63.0 mm (2.5 in)
2006	38.9 mm (1.5 in)
2007	77.0 mm (3.0 in)
2008	48.8 mm (1.9 in)
2009	36.8 mm (1.4 in)
2010	39.9 mm (1.6 in)
2011	89.4 mm (3.5 in)
2012	99.8 mm (3.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Santiago Tulantepec, 1966 to 2012. The record is 178.9 mm (7.0 in) in 2011, marked on the chart; the median year is 83.7 mm (3.3 in).

Wettest five days (Rx5day) at Santiago Tulantepec by year
Year	Wettest five days (Rx5day)
1966	67.6 mm (2.7 in)
1967	51.9 mm (2.0 in)
1968	79.7 mm (3.1 in)
1969	72.6 mm (2.9 in)
1970	106.3 mm (4.2 in)
1971	68.6 mm (2.7 in)
1972	54.9 mm (2.2 in)
1973	72.5 mm (2.9 in)
1974	113.6 mm (4.5 in)
1975	98.8 mm (3.9 in)
1976	145.6 mm (5.7 in)
1977	46.8 mm (1.8 in)
1978	109.0 mm (4.3 in)
1979	63.3 mm (2.5 in)
1980	97.8 mm (3.9 in)
1981	84.9 mm (3.3 in)
1982	47.5 mm (1.9 in)
1983	95.3 mm (3.8 in)
1984	72.8 mm (2.9 in)
1985	110.0 mm (4.3 in)
1986	47.5 mm (1.9 in)
1987	90.9 mm (3.6 in)
1988	62.8 mm (2.5 in)
1990	59.7 mm (2.4 in)
1991	83.6 mm (3.3 in)
1992	76.2 mm (3.0 in)
1993	66.9 mm (2.6 in)
1996	99.6 mm (3.9 in)
1997	83.4 mm (3.3 in)
1998	154.5 mm (6.1 in)
1999	77.2 mm (3.0 in)
2000	83.8 mm (3.3 in)
2005	143.9 mm (5.7 in)
2006	68.9 mm (2.7 in)
2007	84.1 mm (3.3 in)
2008	117.3 mm (4.6 in)
2009	105.1 mm (4.1 in)
2010	114.6 mm (4.5 in)
2011	178.9 mm (7.0 in)
2012	115.4 mm (4.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Santiago Tulantepec, 1966 to 2012. The record is 218 days in 1999, marked on the chart; the median year is 49 days.

Longest dry spell (CDD) at Santiago Tulantepec by year
Year	Longest dry spell (CDD)
1966	51 days
1967	52 days
1968	44 days
1969	34 days
1970	77 days
1971	54 days
1972	33 days
1973	56 days
1974	33 days
1975	66 days
1976	63 days
1977	80 days
1978	27 days
1979	32 days
1980	27 days
1981	35 days
1982	56 days
1983	56 days
1984	50 days
1985	52 days
1986	51 days
1987	110 days
1988	61 days
1990	32 days
1991	41 days
1992	18 days
1993	45 days
1996	35 days
1997	35 days
1998	52 days
1999	218 days
2000	70 days
2005	50 days
2006	30 days
2007	27 days
2008	38 days
2009	35 days
2010	48 days
2011	56 days
2012	30 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

32 years, 1967 to 2012

A day with at least 42.9 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 130.3 mm (5.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Santiago Tulantepec: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	42.9 mm (1.7 in)
5 years	63.0 mm (2.5 in)
10 years	77.5 mm (3.1 in)
25 years	97.4 mm (3.8 in)
50 years	113.4 mm (4.5 in)	Longer than the 32 years of record
100 years	130.3 mm (5.1 in)	Longer than the 32 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, 32 years of values from 1967 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: 99.8 mm (3.9 in) in 2012; 89.4 mm (3.5 in) in 1976; 89.4 mm (3.5 in) in 2011.

Download the Data

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