Tlazoyaltepec Weather Records (MXN00020313)

Record envelope, standing records and threshold days for Tlazoyaltepec (MXN00020313), Mexico, with 32 years of record.

Key Facts for Tlazoyaltepec

Tlazoyaltepec (MXN00020313) is a weather station in Mexico at 17.02 latitude and -96.98 longitude, 2,500 m (8,202 ft) above sea level.
The station reports from 1980 to 2011, 32 years of record.
1,464 records set at Tlazoyaltepec still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 17.02 latitude, -96.98 longitude.
Elevation: 2,500 m (8,202 ft).
Period of record: 1980 to 2011, 32 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 Tlazoyaltepec. 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 Tlazoyaltepec, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	32.8 C (91.0 F)	-0.6 C (30.9 F)	n/a	n/a
Feb	35.0 C (95.0 F)	0.0 C (32.0 F)	n/a	n/a
Mar	35.6 C (96.1 F)	0.0 C (32.0 F)	n/a	n/a
Apr	37.8 C (100.0 F)	2.2 C (36.0 F)	n/a	n/a
May	37.8 C (100.0 F)	5.0 C (41.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	3.9 C (39.0 F)	n/a	n/a
Jul	33.9 C (93.0 F)	1.7 C (35.1 F)	n/a	n/a
Aug	33.9 C (93.0 F)	3.3 C (37.9 F)	n/a	n/a
Sep	30.6 C (87.1 F)	3.9 C (39.0 F)	n/a	n/a
Oct	30.6 C (87.1 F)	2.8 C (37.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	0.6 C (33.1 F)	n/a	n/a
Dec	29.4 C (84.9 F)	0.0 C (32.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tlazoyaltepec still stand. 2003 holds the most, with 211.

Standing records at Tlazoyaltepec by the year they were set
Year set	Standing records
1980	60
1981	13
1982	78
1983	82
1984	49
1985	57
1986	86
1987	55
1988	18
1995	27
1996	25
1997	57
1998	19
1999	3
2000	119
2001	142
2002	16
2003	211
2004	72
2005	51
2006	27
2008	28
2009	130
2010	15
2011	24

Wettest Day of Each Month

Sep: 159.8 mm (6.3 in)

The wettest day on record for each calendar month at Tlazoyaltepec. The most was 159.8 mm (6.3 in) on 14 September 2003.

Record daily precipitation for each month at Tlazoyaltepec
Month	Record daily precipitation (mm)	Date
Jan	21.8 mm (0.9 in)	15 January 2002
Feb	24.9 mm (1.0 in)	4 February 2010
Mar	49.8 mm (2.0 in)	14 March 1981
Apr	41.9 mm (1.6 in)	21 April 2011
May	144.8 mm (5.7 in)	18 May 1996
Jun	52.6 mm (2.1 in)	9 June 1981
Jul	79.8 mm (3.1 in)	15 July 1995
Aug	89.9 mm (3.5 in)	21 August 1995
Sep	159.8 mm (6.3 in)	14 September 2003
Oct	96.8 mm (3.8 in)	7 October 2003
Nov	43.9 mm (1.7 in)	6 November 1998
Dec	25.7 mm (1.0 in)	18 December 1983

Period of Record Coverage

1980 to 2011

25 years of record at Tlazoyaltepec, 1980 to 2011. 8 years have data for under 90 percent of days and are left out of rankings: 1980, 1988, 1999, 2002, 2004, 2006, 2008, 2009.

Days with data per year at Tlazoyaltepec
Year	Days with data	Share of year	Complete
1980	244	67%	No
1981	335	92%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	336	92%	Yes
1985	334	92%	Yes
1986	335	92%	Yes
1987	365	100%	Yes
1988	274	75%	No
1995	365	100%	Yes
1996	366	100%	Yes
1997	363	99%	Yes
1998	332	91%	Yes
1999	120	33%	No
2000	362	99%	Yes
2001	362	99%	Yes
2002	120	33%	No
2003	364	100%	Yes
2004	305	83%	No
2005	335	92%	Yes
2006	303	83%	No
2008	92	25%	No
2009	304	83%	No
2010	334	92%	Yes
2011	334	92%	Yes

Latest Records

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

Extremes by Year

1980 to 2011

Yearly extremes at Tlazoyaltepec: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	2003	30.6 C (87.1 F)	25
Coldest night (TNn)	-0.6 C (30.9 F)	1988	2.8 C (37.0 F)	25
Wettest day (Rx1day)	159.8 mm (6.3 in)	2003	49.8 mm (2.0 in)	25
Wettest five days (Rx5day)	359.5 mm (14.2 in)	2003	103.3 mm (4.1 in)	25
Longest dry spell (CDD)	152 days	1998	69 days	25

Hottest day (TXx)

The hottest day of the year at Tlazoyaltepec, 1980 to 2011. The record is 37.8 C (100.0 F) in 2003, marked on the chart; the median year is 30.6 C (87.1 F).

Hottest day (TXx) at Tlazoyaltepec by year
Year	Hottest day (TXx)
1980	32.2 C (90.0 F)
1981	26.7 C (80.1 F)
1982	30.6 C (87.1 F)
1983	30.6 C (87.1 F)
1984	28.3 C (82.9 F)
1985	25.6 C (78.1 F)
1986	28.9 C (84.0 F)
1987	28.9 C (84.0 F)
1988	28.9 C (84.0 F)
1992	n/a
1995	35.6 C (96.1 F)
1996	27.8 C (82.0 F)
1997	27.8 C (82.0 F)
1998	32.8 C (91.0 F)
1999	27.8 C (82.0 F)
2000	30.6 C (87.1 F)
2001	25.6 C (78.1 F)
2002	21.7 C (71.1 F)
2003	37.8 C (100.0 F)
2004	31.7 C (89.1 F)
2005	32.8 C (91.0 F)
2006	35.0 C (95.0 F)
2008	30.6 C (87.1 F)
2009	37.8 C (100.0 F)
2010	36.7 C (98.1 F)
2011	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Tlazoyaltepec, 1980 to 2011. The record is -0.6 C (30.9 F) in 1988, marked on the chart; the median year is 2.8 C (37.0 F).

Coldest night (TNn) at Tlazoyaltepec by year
Year	Coldest night (TNn)
1980	5.0 C (41.0 F)
1981	4.4 C (39.9 F)
1982	5.0 C (41.0 F)
1983	2.8 C (37.0 F)
1984	2.2 C (36.0 F)
1985	2.8 C (37.0 F)
1986	0.0 C (32.0 F)
1987	0.0 C (32.0 F)
1988	-0.6 C (30.9 F)
1992	n/a
1995	0.0 C (32.0 F)
1996	3.9 C (39.0 F)
1997	5.0 C (41.0 F)
1998	2.8 C (37.0 F)
1999	3.9 C (39.0 F)
2000	0.0 C (32.0 F)
2001	2.8 C (37.0 F)
2002	5.0 C (41.0 F)
2003	1.7 C (35.1 F)
2004	2.8 C (37.0 F)
2005	3.9 C (39.0 F)
2006	5.6 C (42.1 F)
2008	3.9 C (39.0 F)
2009	0.6 C (33.1 F)
2010	0.6 C (33.1 F)
2011	2.2 C (36.0 F)

Wettest day (Rx1day)

The wettest day of the year at Tlazoyaltepec, 1980 to 2011. The record is 159.8 mm (6.3 in) in 2003, marked on the chart; the median year is 49.8 mm (2.0 in).

Wettest day (Rx1day) at Tlazoyaltepec by year
Year	Wettest day (Rx1day)
1980	51.8 mm (2.0 in)
1981	59.9 mm (2.4 in)
1982	59.9 mm (2.4 in)
1983	50.3 mm (2.0 in)
1984	69.9 mm (2.8 in)
1985	19.8 mm (0.8 in)
1986	15.0 mm (0.6 in)
1987	74.9 mm (2.9 in)
1988	39.9 mm (1.6 in)
1992	0.0 mm (0.00 in)
1995	89.9 mm (3.5 in)
1996	144.8 mm (5.7 in)
1997	37.8 mm (1.5 in)
1998	43.9 mm (1.7 in)
1999	n/a
2000	39.9 mm (1.6 in)
2001	36.8 mm (1.4 in)
2002	21.8 mm (0.9 in)
2003	159.8 mm (6.3 in)
2004	79.8 mm (3.1 in)
2005	49.8 mm (2.0 in)
2006	25.9 mm (1.0 in)
2008	27.9 mm (1.1 in)
2009	49.8 mm (2.0 in)
2010	52.8 mm (2.1 in)
2011	41.9 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tlazoyaltepec, 1980 to 2011. The record is 359.5 mm (14.2 in) in 2003, marked on the chart; the median year is 103.3 mm (4.1 in).

Wettest five days (Rx5day) at Tlazoyaltepec by year
Year	Wettest five days (Rx5day)
1980	90.7 mm (3.6 in)
1981	120.9 mm (4.8 in)
1982	103.3 mm (4.1 in)
1983	133.9 mm (5.3 in)
1984	122.4 mm (4.8 in)
1985	54.6 mm (2.1 in)
1986	50.5 mm (2.0 in)
1987	103.4 mm (4.1 in)
1988	78.2 mm (3.1 in)
1992	0.0 mm (0.00 in)
1995	146.4 mm (5.8 in)
1996	161.5 mm (6.4 in)
1997	131.3 mm (5.2 in)
1998	128.6 mm (5.1 in)
1999	n/a
2000	132.3 mm (5.2 in)
2001	94.5 mm (3.7 in)
2002	39.6 mm (1.6 in)
2003	359.5 mm (14.2 in)
2004	174.5 mm (6.9 in)
2005	79.8 mm (3.1 in)
2006	56.6 mm (2.2 in)
2008	62.8 mm (2.5 in)
2009	101.4 mm (4.0 in)
2010	137.1 mm (5.4 in)
2011	84.6 mm (3.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tlazoyaltepec, 1980 to 2011. The record is 152 days in 1998, marked on the chart; the median year is 69 days.

Longest dry spell (CDD) at Tlazoyaltepec by year
Year	Longest dry spell (CDD)
1980	67 days
1981	69 days
1982	60 days
1983	83 days
1984	67 days
1985	54 days
1986	85 days
1987	92 days
1988	65 days
1992	29 days
1995	68 days
1996	89 days
1997	75 days
1998	152 days
1999	n/a
2000	92 days
2001	78 days
2002	60 days
2003	151 days
2004	75 days
2005	93 days
2006	120 days
2008	15 days
2009	66 days
2010	32 days
2011	63 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 Tlazoyaltepec standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tlazoyaltepec 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 2026-10-14 (14 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).