Sanctorum Weather Records (MXN00029024)

Record envelope, standing records and threshold days for Sanctorum (MXN00029024), Mexico, with 44 years of record.

Key Facts for Sanctorum

Sanctorum (MXN00029024) is a weather station in Mexico at 19.48 latitude and -98.47 longitude, 2,740 m (8,989 ft) above sea level.
The station reports from 1966 to 2009, 44 years of record.
1,464 records set at Sanctorum still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Sanctorum set a daily record precipitation of 22.9 mm (0.9 in) on 21 June 2009.

About the Station

Location: Mexico, 19.48 latitude, -98.47 longitude.
Elevation: 2,740 m (8,989 ft).
Period of record: 1966 to 2009, 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 Sanctorum. 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 Sanctorum, 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)	-3.3 C (26.1 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-4.4 C (24.1 F)	n/a	n/a
Mar	30.6 C (87.1 F)	-5.0 C (23.0 F)	n/a	n/a
Apr	30.0 C (86.0 F)	0.6 C (33.1 F)	n/a	n/a
May	38.9 C (102.0 F)	0.0 C (32.0 F)	n/a	n/a
Jun	31.1 C (88.0 F)	0.6 C (33.1 F)	n/a	n/a
Jul	27.8 C (82.0 F)	3.9 C (39.0 F)	n/a	n/a
Aug	28.3 C (82.9 F)	2.8 C (37.0 F)	n/a	n/a
Sep	25.6 C (78.1 F)	0.0 C (32.0 F)	n/a	n/a
Oct	26.7 C (80.1 F)	0.0 C (32.0 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-1.1 C (30.0 F)	n/a	n/a
Dec	26.7 C (80.1 F)	-3.3 C (26.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Sanctorum still stand. 1998 holds the most, with 137.

Standing records at Sanctorum by the year they were set
Year set	Standing records
1977	84
1978	82
1979	76
1980	88
1981	59
1982	73
1983	84
1984	51
1985	48
1986	52
1987	101
1988	71
1989	7
1996	63
1997	53
1998	137
1999	50
2000	17
2001	36
2002	31
2003	24
2005	31
2006	24
2007	43
2008	51
2009	28

Wettest Day of Each Month

Aug: 99.8 mm (3.9 in)

The wettest day on record for each calendar month at Sanctorum. The most was 99.8 mm (3.9 in) on 31 August 1987.

Record daily precipitation for each month at Sanctorum
Month	Record daily precipitation (mm)	Date
Jan	19.8 mm (0.8 in)	10 January 1967
Feb	39.9 mm (1.6 in)	15 February 1979
Mar	27.9 mm (1.1 in)	20 March 1999
Apr	34.8 mm (1.4 in)	7 April 1997
May	56.9 mm (2.2 in)	25 May 1980
Jun	51.8 mm (2.0 in)	30 June 1973
Jul	53.3 mm (2.1 in)	1 July 1976
Aug	99.8 mm (3.9 in)	31 August 1987
Sep	54.4 mm (2.1 in)	23 September 1967
Oct	39.9 mm (1.6 in)	6 October 1999
Nov	73.2 mm (2.9 in)	27 November 1980
Dec	30.0 mm (1.2 in)	11 December 1977

Period of Record Coverage

1977 to 2009

26 years of record at Sanctorum, 1977 to 2009. 7 years have data for under 90 percent of days and are left out of rankings: 1977, 1989, 1999, 2000, 2006, 2007, 2009.

Days with data per year at Sanctorum
Year	Days with data	Share of year	Complete
1977	304	83%	No
1978	363	99%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	364	100%	Yes
1984	365	100%	Yes
1985	364	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	59	16%	No
1996	365	100%	Yes
1997	364	100%	Yes
1998	361	99%	Yes
1999	297	81%	No
2000	87	24%	No
2001	364	100%	Yes
2002	346	95%	Yes
2003	362	99%	Yes
2005	365	100%	Yes
2006	218	60%	No
2007	318	87%	No
2008	335	92%	Yes
2009	180	49%	No

Latest Records

Latest records at Sanctorum
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 June 2009	Sanctorum, MX	daily rain	22.9 mm (0.9 in)	0.5 mm (0.02 in)	39 years	15 of 100 (Routine)
28 May 2009	Sanctorum, MX	daily rain	15.5 mm (0.6 in)	3.1 mm (0.12 in)	22 years	14 of 100 (Routine)
22 May 2009	Sanctorum, MX	daily rain	20.8 mm (0.8 in)	4.0 mm (0.16 in)	39 years	20 of 100 (Routine)
21 May 2009	Sanctorum, MX	daily rain	18.8 mm (0.7 in)	3.3 mm (0.13 in)	34 years	18 of 100 (Routine)
15 May 2009	Sanctorum, MX	daily rain	18.8 mm (0.7 in)	10.9 mm (0.4 in)	27 years	20 of 100 (Routine)
24 March 2009	Sanctorum, MX	daily rain	10.4 mm (0.4 in)	8.6 mm (0.34 in)	32 years	20 of 100 (Routine)
19 February 2009	Sanctorum, MX	daily rain	2.8 mm (0.11 in)	1.5 mm (0.06 in)	39 years	17 of 100 (Routine)
16 January 2009	Sanctorum, MX	daily rain	1.8 mm (0.07 in)	1.0 mm (0.04 in)	41 years	18 of 100 (Routine)
15 January 2009	Sanctorum, MX	daily rain	1.8 mm (0.07 in)	1.0 mm (0.04 in)	41 years	18 of 100 (Routine)
12 January 2009	Sanctorum, MX	daily rain	1.8 mm (0.07 in)	0.5 mm (0.02 in)	7 years	7 of 100 (Routine)
2 July 2008	Sanctorum, MX	daily rain	20.8 mm (0.8 in)	0.5 mm (0.02 in)	37 years	15 of 100 (Routine)
23 April 2008	Sanctorum, MX	daily rain	15.7 mm (0.6 in)	0.7 mm (0.03 in)	3 years	5 of 100 (Routine)
6 February 2008	Sanctorum, MX	daily rain	13.0 mm (0.5 in)	11.7 mm (0.5 in)	24 years	20 of 100 (Routine)
22 August 2007	Sanctorum, MX	daily rain	51.3 mm (2.0 in)	14.5 mm (0.6 in)	36 years	29 of 100 (Routine)
26 May 2007	Sanctorum, MX	daily rain	17.5 mm (0.7 in)	7.1 mm (0.28 in)	32 years	20 of 100 (Routine)
4 April 2007	Sanctorum, MX	daily rain	9.9 mm (0.39 in)	5.1 mm (0.20 in)	30 years	20 of 100 (Routine)
3 April 2007	Sanctorum, MX	daily rain	5.8 mm (0.23 in)	2.5 mm (0.10 in)	38 years	19 of 100 (Routine)
1 April 2007	Sanctorum, MX	daily rain	15.0 mm (0.6 in)	11.7 mm (0.5 in)	32 years	20 of 100 (Routine)
10 February 2007	Sanctorum, MX	daily rain	4.8 mm (0.19 in)	2.0 mm (0.08 in)	19 years	12 of 100 (Routine)
4 February 2007	Sanctorum, MX	daily rain	8.9 mm (0.35 in)	3.6 mm (0.14 in)	39 years	20 of 100 (Routine)

Climate Trend

18 complete years, 1978 to 2005

One stripe for each of 18 complete years at Sanctorum, 1978 to 2005. Blue stripes are years cooler than the station's own mean of 13.6 C (56.4 F); red stripes are warmer. The coolest year was 2001, at 12.8 C (55.0 F), and the warmest was 1998, at 14.7 C (58.5 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Sanctorum as warming stripes, 1978 to 2005
Year	Annual mean temperature	Difference from the station mean
1978	13.0 C	-0.61 C
1979	13.4 C	-0.20 C
1980	13.4 C	-0.21 C
1981	13.0 C	-0.60 C
1982	13.9 C	+0.29 C
1983	13.7 C	+0.11 C
1984	13.3 C	-0.31 C
1985	13.2 C	-0.41 C
1986	13.5 C	-0.08 C
1987	13.5 C	-0.03 C
1988	14.0 C	+0.39 C
1996	13.8 C	+0.20 C
1997	13.8 C	+0.23 C
1998	14.7 C	+1.17 C
2001	12.8 C	-0.77 C
2002	13.6 C	+0.00 C
2003	13.8 C	+0.25 C
2005	14.1 C	+0.50 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 2009

Yearly extremes at Sanctorum: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	1998	28.6 C (83.5 F)	26
Coldest night (TNn)	-5.0 C (23.0 F)	1986	-1.1 C (30.0 F)	26
Wettest day (Rx1day)	99.8 mm (3.9 in)	1987	39.9 mm (1.6 in)	37
Wettest five days (Rx5day)	146.3 mm (5.8 in)	1999	79.8 mm (3.1 in)	37
Longest dry spell (CDD)	108 days	1986	57 days	37

Hottest day (TXx)

The hottest day of the year at Sanctorum, 1966 to 2009. The record is 38.9 C (102.0 F) in 1998, marked on the chart; the median year is 28.6 C (83.5 F).

Hottest day (TXx) at Sanctorum by year
Year	Hottest day (TXx)
1966	n/a
1967	n/a
1968	n/a
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	28.9 C (84.0 F)
1978	28.9 C (84.0 F)
1979	30.0 C (86.0 F)
1980	28.9 C (84.0 F)
1981	27.8 C (82.0 F)
1982	26.7 C (80.1 F)
1983	30.0 C (86.0 F)
1984	27.8 C (82.0 F)
1985	25.6 C (78.1 F)
1986	27.8 C (82.0 F)
1987	26.7 C (80.1 F)
1988	28.9 C (84.0 F)
1989	25.0 C (77.0 F)
1996	27.8 C (82.0 F)
1997	26.7 C (80.1 F)
1998	38.9 C (102.0 F)
1999	27.8 C (82.0 F)
2000	30.0 C (86.0 F)
2001	28.3 C (82.9 F)
2002	30.0 C (86.0 F)
2003	28.9 C (84.0 F)
2005	28.9 C (84.0 F)
2006	25.6 C (78.1 F)
2007	25.6 C (78.1 F)
2008	30.6 C (87.1 F)
2009	28.9 C (84.0 F)

Coldest night (TNn)

The coldest night of the year at Sanctorum, 1966 to 2009. The record is -5.0 C (23.0 F) in 1986, marked on the chart; the median year is -1.1 C (30.0 F).

Coldest night (TNn) at Sanctorum by year
Year	Coldest night (TNn)
1966	n/a
1967	n/a
1968	n/a
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	-3.3 C (26.1 F)
1978	-2.2 C (28.0 F)
1979	0.0 C (32.0 F)
1980	-2.2 C (28.0 F)
1981	-2.2 C (28.0 F)
1982	-1.1 C (30.0 F)
1983	-2.2 C (28.0 F)
1984	0.0 C (32.0 F)
1985	-2.2 C (28.0 F)
1986	-5.0 C (23.0 F)
1987	-2.2 C (28.0 F)
1988	-3.3 C (26.1 F)
1989	-4.4 C (24.1 F)
1996	-0.6 C (30.9 F)
1997	-0.6 C (30.9 F)
1998	0.0 C (32.0 F)
1999	0.0 C (32.0 F)
2000	-0.6 C (30.9 F)
2001	0.6 C (33.1 F)
2002	0.0 C (32.0 F)
2003	0.0 C (32.0 F)
2005	0.0 C (32.0 F)
2006	0.0 C (32.0 F)
2007	-1.1 C (30.0 F)
2008	-1.1 C (30.0 F)
2009	-3.3 C (26.1 F)

Wettest day (Rx1day)

The wettest day of the year at Sanctorum, 1966 to 2009. The record is 99.8 mm (3.9 in) in 1987, marked on the chart; the median year is 39.9 mm (1.6 in).

Wettest day (Rx1day) at Sanctorum by year
Year	Wettest day (Rx1day)
1966	34.3 mm (1.4 in)
1967	54.4 mm (2.1 in)
1968	39.9 mm (1.6 in)
1969	48.8 mm (1.9 in)
1970	36.8 mm (1.4 in)
1971	44.5 mm (1.8 in)
1972	41.9 mm (1.6 in)
1973	54.4 mm (2.1 in)
1974	50.3 mm (2.0 in)
1975	37.3 mm (1.5 in)
1976	53.3 mm (2.1 in)
1977	30.0 mm (1.2 in)
1978	39.9 mm (1.6 in)
1979	55.6 mm (2.2 in)
1980	73.2 mm (2.9 in)
1981	49.8 mm (2.0 in)
1982	24.1 mm (0.9 in)
1983	30.0 mm (1.2 in)
1984	45.0 mm (1.8 in)
1985	33.3 mm (1.3 in)
1986	35.1 mm (1.4 in)
1987	99.8 mm (3.9 in)
1988	48.3 mm (1.9 in)
1989	1.0 mm (0.04 in)
1996	32.8 mm (1.3 in)
1997	34.8 mm (1.4 in)
1998	32.3 mm (1.3 in)
1999	45.0 mm (1.8 in)
2000	15.7 mm (0.6 in)
2001	31.8 mm (1.3 in)
2002	39.9 mm (1.6 in)
2003	47.0 mm (1.9 in)
2005	46.0 mm (1.8 in)
2006	53.8 mm (2.1 in)
2007	51.3 mm (2.0 in)
2008	27.9 mm (1.1 in)
2009	31.0 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sanctorum, 1966 to 2009. The record is 146.3 mm (5.8 in) in 1999, marked on the chart; the median year is 79.8 mm (3.1 in).

Wettest five days (Rx5day) at Sanctorum by year
Year	Wettest five days (Rx5day)
1966	50.3 mm (2.0 in)
1967	91.8 mm (3.6 in)
1968	73.4 mm (2.9 in)
1969	100.6 mm (4.0 in)
1970	129.6 mm (5.1 in)
1971	61.8 mm (2.4 in)
1972	83.4 mm (3.3 in)
1973	99.3 mm (3.9 in)
1974	139.4 mm (5.5 in)
1975	81.3 mm (3.2 in)
1976	96.0 mm (3.8 in)
1977	73.2 mm (2.9 in)
1978	123.3 mm (4.9 in)
1979	114.7 mm (4.5 in)
1980	76.8 mm (3.0 in)
1981	90.0 mm (3.5 in)
1982	58.4 mm (2.3 in)
1983	59.7 mm (2.4 in)
1984	106.8 mm (4.2 in)
1985	62.5 mm (2.5 in)
1986	79.8 mm (3.1 in)
1987	116.6 mm (4.6 in)
1988	78.4 mm (3.1 in)
1989	1.0 mm (0.04 in)
1996	64.7 mm (2.5 in)
1997	64.8 mm (2.6 in)
1998	96.3 mm (3.8 in)
1999	146.3 mm (5.8 in)
2000	15.7 mm (0.6 in)
2001	46.5 mm (1.8 in)
2002	82.3 mm (3.2 in)
2003	78.5 mm (3.1 in)
2005	110.4 mm (4.3 in)
2006	104.2 mm (4.1 in)
2007	76.7 mm (3.0 in)
2008	64.0 mm (2.5 in)
2009	63.5 mm (2.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Sanctorum, 1966 to 2009. The record is 108 days in 1986, marked on the chart; the median year is 57 days.

Longest dry spell (CDD) at Sanctorum by year
Year	Longest dry spell (CDD)
1966	52 days
1967	31 days
1968	44 days
1969	64 days
1970	58 days
1971	79 days
1972	65 days
1973	57 days
1974	49 days
1975	65 days
1976	49 days
1977	42 days
1978	44 days
1979	63 days
1980	55 days
1981	32 days
1982	61 days
1983	68 days
1984	36 days
1985	54 days
1986	108 days
1987	63 days
1988	40 days
1989	39 days
1996	66 days
1997	76 days
1998	91 days
1999	78 days
2000	43 days
2001	60 days
2002	46 days
2003	81 days
2005	53 days
2006	42 days
2007	71 days
2008	77 days
2009	33 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 2008

A day with at least 41.4 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 92.0 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Sanctorum: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	41.4 mm (1.6 in)
5 years	53.3 mm (2.1 in)
10 years	61.8 mm (2.4 in)
25 years	73.3 mm (2.9 in)
50 years	82.4 mm (3.2 in)	Longer than the 32 years of record
100 years	92.0 mm (3.6 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 2008.

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 1987; 73.2 mm (2.9 in) in 1980; 55.6 mm (2.2 in) in 1979.

Download the Data

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