San Lucas Totolmaloya Weather Records (MXN00015260)

Record envelope, standing records and threshold days for San Lucas Totolmaloya (MXN00015260), Mexico, with 33 years of record.

Key Facts for San Lucas Totolmaloya

San Lucas Totolmaloya (MXN00015260) is a weather station in Mexico at 20.08 latitude and -99.90 longitude, 2,737 m (8,979 ft) above sea level.
The station reports from 1979 to 2011, 33 years of record.
1,464 records set at San Lucas Totolmaloya still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 20.08 latitude, -99.90 longitude.
Elevation: 2,737 m (8,979 ft).
Period of record: 1979 to 2011, 33 years.
Eligible elements: none yet.

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 Lucas Totolmaloya. 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 Lucas Totolmaloya, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	23.9 C (75.0 F)	-5.0 C (23.0 F)	n/a	n/a
Feb	25.6 C (78.1 F)	-4.4 C (24.1 F)	n/a	n/a
Mar	30.0 C (86.0 F)	-4.4 C (24.1 F)	n/a	n/a
Apr	30.6 C (87.1 F)	0.0 C (32.0 F)	n/a	n/a
May	31.7 C (89.1 F)	3.9 C (39.0 F)	n/a	n/a
Jun	30.6 C (87.1 F)	2.8 C (37.0 F)	n/a	n/a
Jul	32.8 C (91.0 F)	2.8 C (37.0 F)	n/a	n/a
Aug	28.9 C (84.0 F)	2.8 C (37.0 F)	n/a	n/a
Sep	28.9 C (84.0 F)	0.6 C (33.1 F)	n/a	n/a
Oct	26.7 C (80.1 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-4.4 C (24.1 F)	n/a	n/a
Dec	25.0 C (77.0 F)	-6.1 C (21.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Lucas Totolmaloya still stand. 2004 holds the most, with 120.

Standing records at San Lucas Totolmaloya by the year they were set
Year set	Standing records
1979	64
1980	45
1981	49
1982	45
1983	64
1984	35
1985	11
1986	48
1987	59
1988	30
1989	36
1990	26
1991	51
1992	33
1993	93
1994	38
1995	38
1996	32
1997	77
1998	100
1999	39
2000	29
2001	36
2002	28
2003	46
2004	120
2005	43
2008	113
2011	36

Wettest Day of Each Month

Jul: 80.8 mm (3.2 in)

The wettest day on record for each calendar month at San Lucas Totolmaloya. The most was 80.8 mm (3.2 in) on 25 July 1979.

Record daily precipitation for each month at San Lucas Totolmaloya
Month	Record daily precipitation (mm)	Date
Jan	26.9 mm (1.1 in)	24 January 1993
Feb	27.4 mm (1.1 in)	28 February 1990
Mar	31.8 mm (1.3 in)	11 March 1990
Apr	37.6 mm (1.5 in)	29 April 1986
May	44.5 mm (1.8 in)	27 May 1992
Jun	74.7 mm (2.9 in)	25 June 2011
Jul	80.8 mm (3.2 in)	25 July 1979
Aug	78.7 mm (3.1 in)	8 August 1995
Sep	73.7 mm (2.9 in)	6 September 2002
Oct	66.5 mm (2.6 in)	17 October 1994
Nov	40.4 mm (1.6 in)	5 November 2002
Dec	39.6 mm (1.6 in)	3 December 1979

Period of Record Coverage

1979 to 2011

29 years of record at San Lucas Totolmaloya, 1979 to 2011. 5 years have data for under 90 percent of days and are left out of rankings: 1985, 1999, 2004, 2005, 2011.

Days with data per year at San Lucas Totolmaloya
Year	Days with data	Share of year	Complete
1979	342	94%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	273	75%	No
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	362	99%	Yes
1990	361	99%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	364	100%	Yes
1994	330	90%	Yes
1995	364	100%	Yes
1996	364	99%	Yes
1997	364	100%	Yes
1998	364	100%	Yes
1999	328	90%	No
2000	366	100%	Yes
2001	353	97%	Yes
2002	354	97%	Yes
2003	355	97%	Yes
2004	279	76%	No
2005	265	73%	No
2008	349	95%	Yes
2011	183	50%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

22 complete years, 1980 to 2008

One stripe for each of 22 complete years at San Lucas Totolmaloya, 1980 to 2008. Blue stripes are years cooler than the station's own mean of 13.6 C (56.5 F); red stripes are warmer. The coolest year was 2008, at 11.2 C (52.2 F), and the warmest was 1998, at 14.9 C (58.9 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at San Lucas Totolmaloya as warming stripes, 1980 to 2008
Year	Annual mean temperature	Difference from the station mean
1980	13.7 C	+0.03 C
1981	13.2 C	-0.39 C
1982	14.0 C	+0.37 C
1983	13.4 C	-0.24 C
1984	13.4 C	-0.27 C
1986	13.2 C	-0.43 C
1987	13.5 C	-0.18 C
1988	13.4 C	-0.22 C
1989	13.5 C	-0.10 C
1990	13.6 C	-0.01 C
1991	13.9 C	+0.30 C
1992	13.1 C	-0.55 C
1993	12.2 C	-1.39 C
1995	14.4 C	+0.80 C
1996	14.0 C	+0.34 C
1997	14.1 C	+0.44 C
1998	14.9 C	+1.30 C
2000	14.1 C	+0.48 C
2001	14.1 C	+0.48 C
2002	14.3 C	+0.65 C
2003	14.6 C	+1.00 C
2008	11.2 C	-2.42 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

1979 to 2011

Yearly extremes at San Lucas Totolmaloya: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	32.8 C (91.0 F)	2005	28.9 C (84.0 F)	29
Coldest night (TNn)	-6.1 C (21.0 F)	1997	-1.1 C (30.0 F)	29
Wettest day (Rx1day)	80.8 mm (3.2 in)	1979	50.8 mm (2.0 in)	29
Wettest five days (Rx5day)	174.1 mm (6.9 in)	2011	101.1 mm (4.0 in)	29
Longest dry spell (CDD)	112 days	1998	55 days	29

Hottest day (TXx)

The hottest day of the year at San Lucas Totolmaloya, 1979 to 2011. The record is 32.8 C (91.0 F) in 2005, marked on the chart; the median year is 28.9 C (84.0 F).

Hottest day (TXx) at San Lucas Totolmaloya by year
Year	Hottest day (TXx)
1979	27.8 C (82.0 F)
1980	26.7 C (80.1 F)
1981	26.7 C (80.1 F)
1982	27.8 C (82.0 F)
1983	30.0 C (86.0 F)
1984	27.8 C (82.0 F)
1985	25.0 C (77.0 F)
1986	26.7 C (80.1 F)
1987	26.7 C (80.1 F)
1988	28.9 C (84.0 F)
1989	28.9 C (84.0 F)
1990	28.9 C (84.0 F)
1991	27.8 C (82.0 F)
1992	25.6 C (78.1 F)
1993	28.9 C (84.0 F)
1994	28.9 C (84.0 F)
1995	28.9 C (84.0 F)
1996	28.9 C (84.0 F)
1997	27.8 C (82.0 F)
1998	31.7 C (89.1 F)
1999	30.0 C (86.0 F)
2000	27.8 C (82.0 F)
2001	30.0 C (86.0 F)
2002	30.0 C (86.0 F)
2003	30.6 C (87.1 F)
2004	25.6 C (78.1 F)
2005	32.8 C (91.0 F)
2008	30.0 C (86.0 F)
2011	30.6 C (87.1 F)

Coldest night (TNn)

The coldest night of the year at San Lucas Totolmaloya, 1979 to 2011. The record is -6.1 C (21.0 F) in 1997, marked on the chart; the median year is -1.1 C (30.0 F).

Coldest night (TNn) at San Lucas Totolmaloya by year
Year	Coldest night (TNn)
1979	-1.1 C (30.0 F)
1980	-3.3 C (26.1 F)
1981	-3.3 C (26.1 F)
1982	-2.2 C (28.0 F)
1983	-1.1 C (30.0 F)
1984	-2.2 C (28.0 F)
1985	-0.6 C (30.9 F)
1986	-4.4 C (24.1 F)
1987	-5.0 C (23.0 F)
1988	-5.0 C (23.0 F)
1989	-4.4 C (24.1 F)
1990	0.0 C (32.0 F)
1991	-4.4 C (24.1 F)
1992	-1.1 C (30.0 F)
1993	0.0 C (32.0 F)
1994	0.6 C (33.1 F)
1995	0.0 C (32.0 F)
1996	-4.4 C (24.1 F)
1997	-6.1 C (21.0 F)
1998	-3.3 C (26.1 F)
1999	-4.4 C (24.1 F)
2000	-2.2 C (28.0 F)
2001	0.6 C (33.1 F)
2002	0.0 C (32.0 F)
2003	0.0 C (32.0 F)
2004	0.0 C (32.0 F)
2005	0.0 C (32.0 F)
2008	0.0 C (32.0 F)
2011	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at San Lucas Totolmaloya, 1979 to 2011. The record is 80.8 mm (3.2 in) in 1979, marked on the chart; the median year is 50.8 mm (2.0 in).

Wettest day (Rx1day) at San Lucas Totolmaloya by year
Year	Wettest day (Rx1day)
1979	80.8 mm (3.2 in)
1980	40.9 mm (1.6 in)
1981	47.2 mm (1.9 in)
1982	43.2 mm (1.7 in)
1983	53.8 mm (2.1 in)
1984	51.1 mm (2.0 in)
1985	56.9 mm (2.2 in)
1986	58.2 mm (2.3 in)
1987	56.1 mm (2.2 in)
1988	45.5 mm (1.8 in)
1989	57.2 mm (2.3 in)
1990	43.2 mm (1.7 in)
1991	53.6 mm (2.1 in)
1992	44.5 mm (1.8 in)
1993	50.8 mm (2.0 in)
1994	66.5 mm (2.6 in)
1995	78.7 mm (3.1 in)
1996	47.2 mm (1.9 in)
1997	39.4 mm (1.6 in)
1998	40.1 mm (1.6 in)
1999	33.3 mm (1.3 in)
2000	61.5 mm (2.4 in)
2001	64.8 mm (2.6 in)
2002	73.7 mm (2.9 in)
2003	44.2 mm (1.7 in)
2004	40.9 mm (1.6 in)
2005	37.3 mm (1.5 in)
2008	37.8 mm (1.5 in)
2011	74.7 mm (2.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Lucas Totolmaloya, 1979 to 2011. The record is 174.1 mm (6.9 in) in 2011, marked on the chart; the median year is 101.1 mm (4.0 in).

Wettest five days (Rx5day) at San Lucas Totolmaloya by year
Year	Wettest five days (Rx5day)
1979	99.1 mm (3.9 in)
1980	70.2 mm (2.8 in)
1981	113.7 mm (4.5 in)
1982	79.3 mm (3.1 in)
1983	144.2 mm (5.7 in)
1984	74.2 mm (2.9 in)
1985	120.7 mm (4.8 in)
1986	84.1 mm (3.3 in)
1987	112.9 mm (4.4 in)
1988	91.0 mm (3.6 in)
1989	66.7 mm (2.6 in)
1990	86.4 mm (3.4 in)
1991	113.0 mm (4.4 in)
1992	74.7 mm (2.9 in)
1993	129.3 mm (5.1 in)
1994	95.3 mm (3.8 in)
1995	104.2 mm (4.1 in)
1996	122.6 mm (4.8 in)
1997	56.4 mm (2.2 in)
1998	101.3 mm (4.0 in)
1999	79.8 mm (3.1 in)
2000	92.0 mm (3.6 in)
2001	101.1 mm (4.0 in)
2002	134.5 mm (5.3 in)
2003	131.2 mm (5.2 in)
2004	119.6 mm (4.7 in)
2005	45.5 mm (1.8 in)
2008	112.7 mm (4.4 in)
2011	174.1 mm (6.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Lucas Totolmaloya, 1979 to 2011. The record is 112 days in 1998, marked on the chart; the median year is 55 days.

Longest dry spell (CDD) at San Lucas Totolmaloya by year
Year	Longest dry spell (CDD)
1979	47 days
1980	40 days
1981	35 days
1982	62 days
1983	55 days
1984	91 days
1985	40 days
1986	50 days
1987	76 days
1988	60 days
1989	39 days
1990	36 days
1991	83 days
1992	56 days
1993	53 days
1994	53 days
1995	25 days
1996	63 days
1997	53 days
1998	112 days
1999	84 days
2000	63 days
2001	47 days
2002	53 days
2003	75 days
2004	71 days
2005	61 days
2008	64 days
2011	24 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 Lucas Totolmaloya standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Lucas Totolmaloya 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).