Tlamaya Weather Records (MXN00024125)

Record envelope, standing records and threshold days for Tlamaya (MXN00024125), Mexico, with 39 years of record.

Key Facts for Tlamaya

Tlamaya (MXN00024125) is a weather station in Mexico at 21.42 latitude and -99.00 longitude, 619 m (2,030 ft) above sea level.
The station reports from 1972 to 2010, 39 years of record.
1,464 records set at Tlamaya still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Tlamaya set a daily record low minimum temperature of 10.0 C (50.0 F) on 8 November 2010.

About the Station

Location: Mexico, 21.42 latitude, -99.00 longitude.
Elevation: 619 m (2,030 ft).
Period of record: 1972 to 2010, 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 Tlamaya. 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 Tlamaya, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.0 C (95.0 F)	-1.1 C (30.0 F)	n/a	n/a
Feb	35.6 C (96.1 F)	0.6 C (33.1 F)	n/a	n/a
Mar	40.6 C (105.1 F)	2.8 C (37.0 F)	n/a	n/a
Apr	42.8 C (109.0 F)	3.9 C (39.0 F)	n/a	n/a
May	41.7 C (107.1 F)	8.9 C (48.0 F)	n/a	n/a
Jun	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Jul	36.7 C (98.1 F)	7.8 C (46.0 F)	n/a	n/a
Aug	35.6 C (96.1 F)	7.8 C (46.0 F)	n/a	n/a
Sep	36.7 C (98.1 F)	5.6 C (42.1 F)	n/a	n/a
Oct	35.0 C (95.0 F)	5.6 C (42.1 F)	n/a	n/a
Nov	33.9 C (93.0 F)	1.1 C (34.0 F)	n/a	n/a
Dec	32.8 C (91.0 F)	-3.3 C (26.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tlamaya still stand. 1995 holds the most, with 92.

Standing records at Tlamaya by the year they were set
Year set	Standing records
1972	33
1973	74
1974	40
1975	39
1976	53
1977	33
1978	57
1979	51
1980	54
1981	42
1982	39
1983	46
1984	47
1985	30
1986	23
1987	43
1988	28
1989	50
1990	23
1991	44
1992	37
1993	59
1995	92
1996	42
1997	13
1998	67
1999	13
2000	26
2001	16
2002	20
2003	18
2004	50
2005	25
2006	32
2007	23
2008	23
2009	27
2010	32

All-Time Record Progression

1 new records

1 all-time records were set at Tlamaya between 22 August 2007 and 22 August 2007. Each dot is a new record.

Wettest Day of Each Month

Aug: 347.0 mm (13.7 in)

The wettest day on record for each calendar month at Tlamaya. The most was 347.0 mm (13.7 in) on 22 August 2007.

Record daily precipitation for each month at Tlamaya
Month	Record daily precipitation (mm)	Date
Jan	79.8 mm (3.1 in)	12 January 1990
Feb	59.9 mm (2.4 in)	6 February 1975
Mar	115.8 mm (4.6 in)	29 March 2004
Apr	182.4 mm (7.2 in)	10 April 1982
May	191.8 mm (7.6 in)	30 May 2007
Jun	259.8 mm (10.2 in)	7 June 1978
Jul	241.8 mm (9.5 in)	2 July 2010
Aug	347.0 mm (13.7 in)	22 August 2007
Sep	313.4 mm (12.3 in)	22 September 1974
Oct	237.5 mm (9.4 in)	16 October 1975
Nov	140.0 mm (5.5 in)	20 November 1974
Dec	67.8 mm (2.7 in)	9 December 1981

Period of Record Coverage

1972 to 2010

38 years of record at Tlamaya, 1972 to 2010. 8 years have data for under 90 percent of days and are left out of rankings: 1972, 1990, 1993, 1995, 1996, 1997, 1998, 1999.

Days with data per year at Tlamaya
Year	Days with data	Share of year	Complete
1972	124	34%	No
1973	362	99%	Yes
1974	364	100%	Yes
1975	360	99%	Yes
1976	360	98%	Yes
1977	361	99%	Yes
1978	360	99%	Yes
1979	359	98%	Yes
1980	360	98%	Yes
1981	363	99%	Yes
1982	361	99%	Yes
1983	359	98%	Yes
1984	362	99%	Yes
1985	360	99%	Yes
1986	365	100%	Yes
1987	332	91%	Yes
1988	364	99%	Yes
1989	364	100%	Yes
1990	271	74%	No
1991	365	100%	Yes
1992	366	100%	Yes
1993	312	85%	No
1995	273	75%	No
1996	270	74%	No
1997	181	50%	No
1998	306	84%	No
1999	105	29%	No
2000	364	99%	Yes
2001	330	90%	Yes
2002	364	100%	Yes
2003	365	100%	Yes
2004	364	99%	Yes
2005	353	97%	Yes
2006	365	100%	Yes
2007	364	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	332	91%	Yes

Latest Records

Latest records at Tlamaya
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 November 2010	Tlamaya, MX	daily low min	10.0 C (50.0 F)	0.6 C (1.1 F)	28 years	12 of 100 (Routine)
7 November 2010	Tlamaya, MX	daily low min	7.8 C (46.0 F)	2.2 C (4.0 F)	28 years	18 of 100 (Routine)
6 November 2010	Tlamaya, MX	daily low min	6.7 C (44.1 F)	0.5 C (0.9 F)	19 years	9 of 100 (Routine)
28 October 2010	Tlamaya, MX	daily low min (Tie)	10.0 C (50.0 F)	tie	7 years	1 of 100 (Routine)
27 October 2010	Tlamaya, MX	daily low min	8.9 C (48.0 F)	1.1 C (2.0 F)	12 years	9 of 100 (Routine)
26 October 2010	Tlamaya, MX	daily rain	86.9 mm (3.4 in)	1.0 mm (0.04 in)	32 years	12 of 100 (Routine)
5 October 2010	Tlamaya, MX	daily low max	22.8 C (73.0 F)	2.2 C (4.0 F)	24 years	17 of 100 (Routine)
5 October 2010	Tlamaya, MX	daily low min	12.8 C (55.0 F)	0.5 C (0.9 F)	36 years	14 of 100 (Routine)
4 October 2010	Tlamaya, MX	daily low max	22.8 C (73.0 F)	1.1 C (2.0 F)	24 years	13 of 100 (Routine)
19 September 2010	Tlamaya, MX	daily rain	147.8 mm (5.8 in)	82.0 mm (3.2 in)	24 years	33 of 100 (Routine)
18 September 2010	Tlamaya, MX	daily rain (Tie)	62.0 mm (2.4 in)	tie	36 years	3 of 100 (Routine)
15 September 2010	Tlamaya, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	28 years	2 of 100 (Routine)
12 September 2010	Tlamaya, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	28 years	2 of 100 (Routine)
5 September 2010	Tlamaya, MX	daily high min (Tie)	20.0 C (68.0 F)	tie	36 years	3 of 100 (Routine)
4 September 2010	Tlamaya, MX	daily high min	20.6 C (69.1 F)	0.6 C (1.1 F)	28 years	13 of 100 (Routine)
4 September 2010	Tlamaya, MX	daily rain	175.8 mm (6.9 in)	1.8 mm (0.07 in)	25 years	10 of 100 (Routine)
3 September 2010	Tlamaya, MX	daily rain	135.9 mm (5.4 in)	19.1 mm (0.8 in)	21 years	14 of 100 (Routine)
31 August 2010	Tlamaya, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	27 years	2 of 100 (Routine)
30 August 2010	Tlamaya, MX	daily high max	33.9 C (93.0 F)	1.1 C (2.0 F)	28 years	16 of 100 (Routine)
29 August 2010	Tlamaya, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	36 years	3 of 100 (Routine)

Climate Trend

22 complete years, 1973 to 2009

One stripe for each of 22 complete years at Tlamaya, 1973 to 2009. Blue stripes are years cooler than the station's own mean of 21.2 C (70.2 F); red stripes are warmer. The coolest year was 1976, at 20.0 C (67.9 F), and the warmest was 2000, at 22.4 C (72.3 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Tlamaya as warming stripes, 1973 to 2009
Year	Annual mean temperature	Difference from the station mean
1973	20.9 C	-0.33 C
1974	20.8 C	-0.37 C
1975	21.1 C	-0.11 C
1976	20.0 C	-1.24 C
1977	20.9 C	-0.31 C
1978	20.7 C	-0.54 C
1979	20.6 C	-0.61 C
1980	21.7 C	+0.53 C
1981	20.9 C	-0.29 C
1982	21.4 C	+0.15 C
1983	21.1 C	-0.06 C
1986	21.4 C	+0.17 C
1988	21.0 C	-0.17 C
1989	21.6 C	+0.37 C
2000	22.4 C	+1.19 C
2002	21.4 C	+0.23 C
2003	22.0 C	+0.80 C
2004	21.6 C	+0.41 C
2006	21.3 C	+0.05 C
2007	21.0 C	-0.19 C
2008	21.0 C	-0.17 C
2009	21.6 C	+0.43 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

1972 to 2010

Yearly extremes at Tlamaya: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	1998	37.8 C (100.0 F)	38
Coldest night (TNn)	-3.3 C (26.1 F)	1983	3.3 C (37.9 F)	38
Wettest day (Rx1day)	347.0 mm (13.7 in)	2007	142.4 mm (5.6 in)	38
Wettest five days (Rx5day)	769.6 mm (30.3 in)	1975	323.7 mm (12.7 in)	38
Longest dry spell (CDD)	63 days	2005	25 days	38

Hottest day (TXx)

The hottest day of the year at Tlamaya, 1972 to 2010. The record is 42.8 C (109.0 F) in 1998, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Tlamaya by year
Year	Hottest day (TXx)
1972	35.0 C (95.0 F)
1973	40.6 C (105.1 F)
1974	40.0 C (104.0 F)
1975	40.0 C (104.0 F)
1976	34.4 C (93.9 F)
1977	37.2 C (99.0 F)
1978	38.9 C (102.0 F)
1979	37.8 C (100.0 F)
1980	40.6 C (105.1 F)
1981	40.0 C (104.0 F)
1982	36.7 C (98.1 F)
1983	38.9 C (102.0 F)
1984	41.7 C (107.1 F)
1985	35.0 C (95.0 F)
1986	35.6 C (96.1 F)
1987	35.6 C (96.1 F)
1988	37.8 C (100.0 F)
1989	37.8 C (100.0 F)
1990	35.6 C (96.1 F)
1991	37.8 C (100.0 F)
1992	36.7 C (98.1 F)
1993	35.6 C (96.1 F)
1995	37.8 C (100.0 F)
1996	34.4 C (93.9 F)
1997	36.7 C (98.1 F)
1998	42.8 C (109.0 F)
1999	30.6 C (87.1 F)
2000	40.0 C (104.0 F)
2001	38.9 C (102.0 F)
2002	35.6 C (96.1 F)
2003	38.9 C (102.0 F)
2004	37.8 C (100.0 F)
2005	37.8 C (100.0 F)
2006	36.7 C (98.1 F)
2007	35.6 C (96.1 F)
2008	37.8 C (100.0 F)
2009	37.8 C (100.0 F)
2010	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Tlamaya, 1972 to 2010. The record is -3.3 C (26.1 F) in 1983, marked on the chart; the median year is 3.3 C (37.9 F).

Coldest night (TNn) at Tlamaya by year
Year	Coldest night (TNn)
1972	5.0 C (41.0 F)
1973	0.6 C (33.1 F)
1974	3.3 C (37.9 F)
1975	0.6 C (33.1 F)
1976	1.1 C (34.0 F)
1977	3.3 C (37.9 F)
1978	2.2 C (36.0 F)
1979	-1.1 C (30.0 F)
1980	3.9 C (39.0 F)
1981	5.0 C (41.0 F)
1982	5.0 C (41.0 F)
1983	-3.3 C (26.1 F)
1984	3.9 C (39.0 F)
1985	0.6 C (33.1 F)
1986	1.7 C (35.1 F)
1987	3.9 C (39.0 F)
1988	1.1 C (34.0 F)
1989	-0.6 C (30.9 F)
1990	2.8 C (37.0 F)
1991	3.9 C (39.0 F)
1992	2.8 C (37.0 F)
1993	2.8 C (37.0 F)
1995	2.8 C (37.0 F)
1996	3.9 C (39.0 F)
1997	5.6 C (42.1 F)
1998	3.9 C (39.0 F)
1999	5.6 C (42.1 F)
2000	5.0 C (41.0 F)
2001	5.6 C (42.1 F)
2002	2.8 C (37.0 F)
2003	5.0 C (41.0 F)
2004	1.7 C (35.1 F)
2005	5.6 C (42.1 F)
2006	5.0 C (41.0 F)
2007	2.8 C (37.0 F)
2008	5.0 C (41.0 F)
2009	5.0 C (41.0 F)
2010	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at Tlamaya, 1972 to 2010. The record is 347.0 mm (13.7 in) in 2007, marked on the chart; the median year is 142.4 mm (5.6 in).

Wettest day (Rx1day) at Tlamaya by year
Year	Wettest day (Rx1day)
1972	120.1 mm (4.7 in)
1973	141.0 mm (5.6 in)
1974	313.4 mm (12.3 in)
1975	237.5 mm (9.4 in)
1976	129.8 mm (5.1 in)
1977	75.9 mm (3.0 in)
1978	259.8 mm (10.2 in)
1979	149.4 mm (5.9 in)
1980	154.9 mm (6.1 in)
1981	158.8 mm (6.3 in)
1982	182.4 mm (7.2 in)
1983	210.8 mm (8.3 in)
1984	194.8 mm (7.7 in)
1985	152.9 mm (6.0 in)
1986	99.8 mm (3.9 in)
1987	106.9 mm (4.2 in)
1988	132.8 mm (5.2 in)
1989	126.0 mm (5.0 in)
1990	157.0 mm (6.2 in)
1991	138.9 mm (5.5 in)
1992	144.8 mm (5.7 in)
1993	145.8 mm (5.7 in)
1995	160.8 mm (6.3 in)
1996	119.9 mm (4.7 in)
1997	129.8 mm (5.1 in)
1998	117.9 mm (4.6 in)
1999	74.9 mm (2.9 in)
2000	259.8 mm (10.2 in)
2001	122.9 mm (4.8 in)
2002	88.9 mm (3.5 in)
2003	118.9 mm (4.7 in)
2004	143.8 mm (5.7 in)
2005	119.9 mm (4.7 in)
2006	111.8 mm (4.4 in)
2007	347.0 mm (13.7 in)
2008	239.8 mm (9.4 in)
2009	141.0 mm (5.6 in)
2010	241.8 mm (9.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tlamaya, 1972 to 2010. The record is 769.6 mm (30.3 in) in 1975, marked on the chart; the median year is 323.7 mm (12.7 in).

Wettest five days (Rx5day) at Tlamaya by year
Year	Wettest five days (Rx5day)
1972	149.1 mm (5.9 in)
1973	413.6 mm (16.3 in)
1974	505.7 mm (19.9 in)
1975	769.6 mm (30.3 in)
1976	287.3 mm (11.3 in)
1977	193.6 mm (7.6 in)
1978	479.3 mm (18.9 in)
1979	389.1 mm (15.3 in)
1980	497.6 mm (19.6 in)
1981	684.1 mm (26.9 in)
1982	182.4 mm (7.2 in)
1983	523.3 mm (20.6 in)
1984	408.4 mm (16.1 in)
1985	292.3 mm (11.5 in)
1986	274.2 mm (10.8 in)
1987	202.7 mm (8.0 in)
1988	358.3 mm (14.1 in)
1989	185.5 mm (7.3 in)
1990	359.5 mm (14.2 in)
1991	485.4 mm (19.1 in)
1992	230.2 mm (9.1 in)
1993	317.2 mm (12.5 in)
1995	597.1 mm (23.5 in)
1996	265.2 mm (10.4 in)
1997	306.0 mm (12.0 in)
1998	330.1 mm (13.0 in)
1999	192.4 mm (7.6 in)
2000	393.4 mm (15.5 in)
2001	198.5 mm (7.8 in)
2002	231.5 mm (9.1 in)
2003	287.3 mm (11.3 in)
2004	257.5 mm (10.1 in)
2005	408.5 mm (16.1 in)
2006	217.1 mm (8.5 in)
2007	503.4 mm (19.8 in)
2008	629.2 mm (24.8 in)
2009	289.4 mm (11.4 in)
2010	663.5 mm (26.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tlamaya, 1972 to 2010. The record is 63 days in 2005, marked on the chart; the median year is 25 days.

Longest dry spell (CDD) at Tlamaya by year
Year	Longest dry spell (CDD)
1972	14 days
1973	25 days
1974	15 days
1975	24 days
1976	27 days
1977	15 days
1978	23 days
1979	25 days
1980	22 days
1981	25 days
1982	22 days
1983	28 days
1984	28 days
1985	14 days
1986	20 days
1987	18 days
1988	25 days
1989	45 days
1990	32 days
1991	37 days
1992	28 days
1993	27 days
1995	53 days
1996	44 days
1997	32 days
1998	25 days
1999	20 days
2000	35 days
2001	28 days
2002	40 days
2003	25 days
2004	24 days
2005	63 days
2006	19 days
2007	17 days
2008	22 days
2009	18 days
2010	23 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

35 years, 1973 to 2010

A day with at least 144.6 mm (5.7 in) of rain is expected about once in 2 years. A day with at least 420.2 mm (16.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Tlamaya: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	144.6 mm (5.7 in)
5 years	200.0 mm (7.9 in)
10 years	243.1 mm (9.6 in)
25 years	306.1 mm (12.1 in)
50 years	359.9 mm (14.2 in)	Longer than the 35 years of record
100 years	420.2 mm (16.5 in)	Longer than the 35 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, 35 years of values from 1973 to 2010.

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: 347.0 mm (13.7 in) in 2007; 313.4 mm (12.3 in) in 1974; 259.8 mm (10.2 in) in 1978.

Download the Data

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