Tesopaco Weather Records (MXN00026100)

Record envelope, standing records and threshold days for Tesopaco (MXN00026100), Mexico, with 48 years of record.

Key Facts for Tesopaco

Tesopaco (MXN00026100) is a weather station in Mexico at 27.83 latitude and -109.37 longitude, 421 m (1,381 ft) above sea level.
The station reports from 1966 to 2013, 48 years of record.
1,464 records set at Tesopaco still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Tesopaco tied a daily record high minimum temperature of 25.6 C (78.1 F) on 29 June 2013.

About the Station

Location: Mexico, 27.83 latitude, -109.37 longitude.
Elevation: 421 m (1,381 ft).
Period of record: 1966 to 2013, 48 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 Tesopaco. 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 Tesopaco, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	36.7 C (98.1 F)	-8.3 C (17.1 F)	n/a	n/a
Feb	40.6 C (105.1 F)	-7.2 C (19.0 F)	n/a	n/a
Mar	41.7 C (107.1 F)	-1.1 C (30.0 F)	n/a	n/a
Apr	41.7 C (107.1 F)	0.6 C (33.1 F)	n/a	n/a
May	43.9 C (111.0 F)	3.9 C (39.0 F)	n/a	n/a
Jun	45.0 C (113.0 F)	8.9 C (48.0 F)	n/a	n/a
Jul	45.0 C (113.0 F)	12.8 C (55.0 F)	n/a	n/a
Aug	42.8 C (109.0 F)	15.0 C (59.0 F)	n/a	n/a
Sep	42.8 C (109.0 F)	6.7 C (44.1 F)	n/a	n/a
Oct	42.8 C (109.0 F)	2.2 C (36.0 F)	n/a	n/a
Nov	40.0 C (104.0 F)	-1.7 C (28.9 F)	n/a	n/a
Dec	35.6 C (96.1 F)	-4.4 C (24.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tesopaco still stand. 1971 holds the most, with 143.

Standing records at Tesopaco by the year they were set
Year set	Standing records
1966	69
1967	40
1968	41
1969	60
1970	56
1971	143
1972	87
1973	42
1974	45
1975	45
1976	53
1977	48
1978	67
1979	35
1980	35
1981	37
1982	31
1983	42
1984	27
1985	29
1986	33
1987	45
2001	12
2002	14
2003	33
2004	29
2005	34
2006	28
2007	30
2008	34
2009	56
2010	18
2011	35
2012	21
2013	10

Wettest Day of Each Month

Sep: 129.8 mm (5.1 in)

The wettest day on record for each calendar month at Tesopaco. The most was 129.8 mm (5.1 in) on 5 September 2007.

Record daily precipitation for each month at Tesopaco
Month	Record daily precipitation (mm)	Date
Jan	78.5 mm (3.1 in)	6 January 1981
Feb	44.5 mm (1.8 in)	25 February 1987
Mar	55.4 mm (2.2 in)	3 March 1983
Apr	36.3 mm (1.4 in)	10 April 1968
May	24.9 mm (1.0 in)	19 May 1987
Jun	67.8 mm (2.7 in)	6 June 1979
Jul	121.9 mm (4.8 in)	25 July 1973
Aug	89.9 mm (3.5 in)	7 August 1983
Sep	129.8 mm (5.1 in)	5 September 2007
Oct	79.8 mm (3.1 in)	20 October 1978
Nov	91.9 mm (3.6 in)	8 November 1974
Dec	84.8 mm (3.3 in)	29 December 1978

Period of Record Coverage

1966 to 2013

35 years of record at Tesopaco, 1966 to 2013. 5 years have data for under 90 percent of days and are left out of rankings: 1967, 1980, 2001, 2002, 2013.

Days with data per year at Tesopaco
Year	Days with data	Share of year	Complete
1966	354	97%	Yes
1967	273	75%	No
1968	365	100%	Yes
1969	364	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	363	99%	Yes
1980	244	67%	No
1981	364	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	365	100%	Yes
1985	333	91%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
2001	31	8%	No
2002	273	75%	No
2003	365	100%	Yes
2004	364	99%	Yes
2005	364	100%	Yes
2006	365	100%	Yes
2007	363	99%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	181	50%	No

Latest Records

Latest records at Tesopaco
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 June 2013	Tesopaco, MX	daily high min (Tie)	25.6 C (78.1 F)	tie	39 years	3 of 100 (Routine)
9 June 2013	Tesopaco, MX	daily high min	22.8 C (73.0 F)	0.6 C (1.1 F)	40 years	17 of 100 (Routine)
3 June 2013	Tesopaco, MX	daily high max (Tie)	41.7 C (107.1 F)	tie	4 years	1 of 100 (Routine)
11 May 2013	Tesopaco, MX	daily rain	3.8 mm (0.15 in)	3.8 mm (0.15 in)	47 years	20 of 100 (Routine)
7 May 2013	Tesopaco, MX	daily high min (Tie)	15.6 C (60.1 F)	tie	32 years	3 of 100 (Routine)
16 March 2013	Tesopaco, MX	daily high max (Tie)	36.7 C (98.1 F)	tie	8 years	1 of 100 (Routine)
10 March 2013	Tesopaco, MX	daily low min (Tie)	0.6 C (33.1 F)	tie	44 years	4 of 100 (Routine)
23 February 2013	Tesopaco, MX	daily low min	-1.1 C (30.0 F)	1.7 C (3.1 F)	43 years	21 of 100 (Routine)
11 February 2013	Tesopaco, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	4 years	1 of 100 (Routine)
3 February 2013	Tesopaco, MX	daily high min	11.7 C (53.1 F)	1.1 C (2.0 F)	38 years	18 of 100 (Routine)
2 February 2013	Tesopaco, MX	daily high max	33.9 C (93.0 F)	1.1 C (2.0 F)	33 years	15 of 100 (Routine)
19 January 2013	Tesopaco, MX	daily low min (Tie)	-4.4 C (24.1 F)	tie	7 years	1 of 100 (Routine)
17 January 2013	Tesopaco, MX	daily low min (Tie)	-2.2 C (28.0 F)	tie	7 years	1 of 100 (Routine)
16 January 2013	Tesopaco, MX	daily low min	-3.9 C (25.0 F)	2.8 C (5.0 F)	2 years	12 of 100 (Routine)
16 January 2013	Tesopaco, MX	daily low max (Tie)	18.9 C (66.0 F)	tie	28 years	3 of 100 (Routine)
15 January 2013	Tesopaco, MX	daily low min	-3.3 C (26.1 F)	0.5 C (0.9 F)	11 years	8 of 100 (Routine)
14 January 2013	Tesopaco, MX	daily low min	-5.0 C (23.0 F)	2.8 C (5.0 F)	11 years	15 of 100 (Routine)
13 January 2013	Tesopaco, MX	daily low min	-4.4 C (24.1 F)	3.3 C (5.9 F)	41 years	25 of 100 (Routine)
12 January 2013	Tesopaco, MX	daily low max	16.7 C (62.1 F)	1.6 C (2.9 F)	47 years	21 of 100 (Routine)
12 January 2013	Tesopaco, MX	daily low min	-2.2 C (28.0 F)	1.1 C (2.0 F)	2 years	7 of 100 (Routine)

Climate Trend

29 complete years, 1966 to 2012

One stripe for each of 29 complete years at Tesopaco, 1966 to 2012. Blue stripes are years cooler than the station's own mean of 22.2 C (72.0 F); red stripes are warmer. The coolest year was 1971, at 20.2 C (68.3 F), and the warmest was 2006, at 23.6 C (74.4 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Tesopaco as warming stripes, 1966 to 2012
Year	Annual mean temperature	Difference from the station mean
1966	20.6 C	-1.69 C
1968	22.3 C	+0.02 C
1969	22.5 C	+0.26 C
1970	21.8 C	-0.49 C
1971	20.2 C	-2.07 C
1972	23.1 C	+0.81 C
1973	21.6 C	-0.68 C
1974	21.7 C	-0.51 C
1975	21.2 C	-1.07 C
1976	21.2 C	-1.08 C
1977	22.3 C	+0.09 C
1978	22.1 C	-0.18 C
1979	21.7 C	-0.56 C
1981	22.6 C	+0.36 C
1982	22.3 C	+0.00 C
1983	21.6 C	-0.62 C
1984	21.9 C	-0.33 C
1986	22.6 C	+0.32 C
1987	22.2 C	-0.04 C
2003	23.4 C	+1.11 C
2004	22.3 C	+0.02 C
2005	23.1 C	+0.82 C
2006	23.6 C	+1.32 C
2007	22.7 C	+0.43 C
2008	23.0 C	+0.71 C
2009	23.4 C	+1.17 C
2010	22.7 C	+0.44 C
2011	22.7 C	+0.40 C
2012	23.2 C	+0.90 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 2013

Yearly extremes at Tesopaco: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.0 C (113.0 F)	1967	42.8 C (109.0 F)	35
Coldest night (TNn)	-8.3 C (17.1 F)	1971	-2.2 C (28.0 F)	35
Wettest day (Rx1day)	129.8 mm (5.1 in)	2007	64.8 mm (2.6 in)	35
Wettest five days (Rx5day)	229.4 mm (9.0 in)	1978	120.5 mm (4.7 in)	35
Longest dry spell (CDD)	166 days	1971	90 days	35

Hottest day (TXx)

The hottest day of the year at Tesopaco, 1966 to 2013. The record is 45.0 C (113.0 F) in 1967, marked on the chart; the median year is 42.8 C (109.0 F).

Hottest day (TXx) at Tesopaco by year
Year	Hottest day (TXx)
1966	39.4 C (102.9 F)
1967	45.0 C (113.0 F)
1968	45.0 C (113.0 F)
1969	43.3 C (109.9 F)
1970	42.8 C (109.0 F)
1971	42.8 C (109.0 F)
1972	43.9 C (111.0 F)
1973	42.8 C (109.0 F)
1974	40.6 C (105.1 F)
1975	40.6 C (105.1 F)
1976	41.7 C (107.1 F)
1977	40.6 C (105.1 F)
1978	41.7 C (107.1 F)
1979	43.3 C (109.9 F)
1980	43.9 C (111.0 F)
1981	41.1 C (106.0 F)
1982	41.7 C (107.1 F)
1983	42.2 C (108.0 F)
1984	41.7 C (107.1 F)
1985	41.7 C (107.1 F)
1986	40.6 C (105.1 F)
1987	43.9 C (111.0 F)
2001	35.0 C (95.0 F)
2002	43.9 C (111.0 F)
2003	45.0 C (113.0 F)
2004	43.9 C (111.0 F)
2005	43.9 C (111.0 F)
2006	42.8 C (109.0 F)
2007	43.9 C (111.0 F)
2008	45.0 C (113.0 F)
2009	42.8 C (109.0 F)
2010	43.9 C (111.0 F)
2011	43.9 C (111.0 F)
2012	43.9 C (111.0 F)
2013	42.2 C (108.0 F)

Coldest night (TNn)

The coldest night of the year at Tesopaco, 1966 to 2013. The record is -8.3 C (17.1 F) in 1971, marked on the chart; the median year is -2.2 C (28.0 F).

Coldest night (TNn) at Tesopaco by year
Year	Coldest night (TNn)
1966	0.0 C (32.0 F)
1967	-1.7 C (28.9 F)
1968	0.0 C (32.0 F)
1969	-4.4 C (24.1 F)
1970	0.0 C (32.0 F)
1971	-8.3 C (17.1 F)
1972	-3.3 C (26.1 F)
1973	-2.2 C (28.0 F)
1974	-2.2 C (28.0 F)
1975	-4.4 C (24.1 F)
1976	-1.7 C (28.9 F)
1977	0.6 C (33.1 F)
1978	-3.3 C (26.1 F)
1979	-2.2 C (28.0 F)
1980	0.0 C (32.0 F)
1981	-1.1 C (30.0 F)
1982	-2.2 C (28.0 F)
1983	-1.1 C (30.0 F)
1984	0.0 C (32.0 F)
1985	-1.7 C (28.9 F)
1986	-1.1 C (30.0 F)
1987	-4.4 C (24.1 F)
2001	-4.4 C (24.1 F)
2002	-2.8 C (27.0 F)
2003	-4.4 C (24.1 F)
2004	-2.2 C (28.0 F)
2005	0.0 C (32.0 F)
2006	-4.4 C (24.1 F)
2007	-3.3 C (26.1 F)
2008	-1.7 C (28.9 F)
2009	-1.1 C (30.0 F)
2010	-1.1 C (30.0 F)
2011	-7.2 C (19.0 F)
2012	0.6 C (33.1 F)
2013	-5.0 C (23.0 F)

Wettest day (Rx1day)

The wettest day of the year at Tesopaco, 1966 to 2013. The record is 129.8 mm (5.1 in) in 2007, marked on the chart; the median year is 64.8 mm (2.6 in).

Wettest day (Rx1day) at Tesopaco by year
Year	Wettest day (Rx1day)
1966	60.5 mm (2.4 in)
1967	63.0 mm (2.5 in)
1968	52.8 mm (2.1 in)
1969	69.9 mm (2.8 in)
1970	85.9 mm (3.4 in)
1971	47.8 mm (1.9 in)
1972	59.9 mm (2.4 in)
1973	121.9 mm (4.8 in)
1974	91.9 mm (3.6 in)
1975	61.0 mm (2.4 in)
1976	69.9 mm (2.8 in)
1977	56.9 mm (2.2 in)
1978	84.8 mm (3.3 in)
1979	67.8 mm (2.7 in)
1980	71.4 mm (2.8 in)
1981	78.5 mm (3.1 in)
1982	64.8 mm (2.6 in)
1983	89.9 mm (3.5 in)
1984	50.8 mm (2.0 in)
1985	69.3 mm (2.7 in)
1986	65.8 mm (2.6 in)
1987	79.0 mm (3.1 in)
2001	0.0 mm (0.00 in)
2002	20.8 mm (0.8 in)
2003	45.0 mm (1.8 in)
2004	59.9 mm (2.4 in)
2005	57.9 mm (2.3 in)
2006	65.8 mm (2.6 in)
2007	129.8 mm (5.1 in)
2008	63.0 mm (2.5 in)
2009	41.9 mm (1.6 in)
2010	57.9 mm (2.3 in)
2011	69.9 mm (2.8 in)
2012	83.8 mm (3.3 in)
2013	3.8 mm (0.15 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tesopaco, 1966 to 2013. The record is 229.4 mm (9.0 in) in 1978, marked on the chart; the median year is 120.5 mm (4.7 in).

Wettest five days (Rx5day) at Tesopaco by year
Year	Wettest five days (Rx5day)
1966	72.1 mm (2.8 in)
1967	101.5 mm (4.0 in)
1968	65.3 mm (2.6 in)
1969	129.6 mm (5.1 in)
1970	120.7 mm (4.8 in)
1971	120.5 mm (4.7 in)
1972	136.3 mm (5.4 in)
1973	179.8 mm (7.1 in)
1974	145.4 mm (5.7 in)
1975	102.9 mm (4.1 in)
1976	69.9 mm (2.8 in)
1977	67.3 mm (2.6 in)
1978	229.4 mm (9.0 in)
1979	229.4 mm (9.0 in)
1980	152.4 mm (6.0 in)
1981	124.2 mm (4.9 in)
1982	98.6 mm (3.9 in)
1983	125.7 mm (4.9 in)
1984	121.9 mm (4.8 in)
1985	71.2 mm (2.8 in)
1986	121.4 mm (4.8 in)
1987	131.8 mm (5.2 in)
2001	0.0 mm (0.00 in)
2002	21.3 mm (0.8 in)
2003	80.8 mm (3.2 in)
2004	122.5 mm (4.8 in)
2005	94.5 mm (3.7 in)
2006	87.9 mm (3.5 in)
2007	137.9 mm (5.4 in)
2008	130.8 mm (5.1 in)
2009	71.8 mm (2.8 in)
2010	102.8 mm (4.0 in)
2011	152.7 mm (6.0 in)
2012	98.8 mm (3.9 in)
2013	3.8 mm (0.15 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tesopaco, 1966 to 2013. The record is 166 days in 1971, marked on the chart; the median year is 90 days.

Longest dry spell (CDD) at Tesopaco by year
Year	Longest dry spell (CDD)
1966	52 days
1967	90 days
1968	80 days
1969	128 days
1970	89 days
1971	166 days
1972	145 days
1973	96 days
1974	85 days
1975	110 days
1976	83 days
1977	151 days
1978	114 days
1979	101 days
1980	53 days
1981	80 days
1982	103 days
1983	50 days
1984	60 days
1985	52 days
1986	78 days
1987	81 days
2001	31 days
2002	146 days
2003	86 days
2004	55 days
2005	98 days
2006	154 days
2007	87 days
2008	148 days
2009	75 days
2010	148 days
2011	152 days
2012	119 days
2013	130 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

30 years, 1966 to 2012

A day with at least 65.7 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 142.5 mm (5.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Tesopaco: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	65.7 mm (2.6 in)
5 years	82.7 mm (3.3 in)
10 years	95.3 mm (3.8 in)
25 years	112.8 mm (4.4 in)
50 years	127.1 mm (5.0 in)	Longer than the 30 years of record
100 years	142.5 mm (5.6 in)	Longer than the 30 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, 30 years of values from 1966 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: 129.8 mm (5.1 in) in 2007; 121.9 mm (4.8 in) in 1973; 91.9 mm (3.6 in) in 1974.

Download the Data

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