Hermanos Serdan Intl Weather Records (MXM00076685)

Record envelope, standing records and threshold days for Hermanos Serdan Intl (MXM00076685), Mexico, with 51 years of record.

Key Facts for Hermanos Serdan Intl

Hermanos Serdan Intl (MXM00076685) is a weather station in Mexico at 19.16 latitude and -98.37 longitude, 2,244 m (7,361 ft) above sea level.
The station reports from 1975 to 2025, 51 years of record.
1,464 records set at Hermanos Serdan Intl still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Hermanos Serdan Intl set a daily record precipitation of 46.5 mm (1.8 in) on 1 June 2025.

About the Station

Location: Mexico, 19.16 latitude, -98.37 longitude.
Elevation: 2,244 m (7,361 ft).
Period of record: 1975 to 2025, 51 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

27 days at or beyond a record

The band shows the record high and record low for each calendar day at Hermanos Serdan Intl. The lines show the 2026 daily maximum and minimum. 27 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Hermanos Serdan Intl, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	29.9 C (85.8 F)	-1.6 C (29.1 F)	26.4 C (79.5 F)	5.6 C (42.1 F)
Feb	31.6 C (88.9 F)	-0.6 C (30.9 F)	29.0 C (84.2 F)	5.6 C (42.1 F)
Mar	35.8 C (96.4 F)	-0.4 C (31.3 F)	30.8 C (87.4 F)	7.0 C (44.6 F)
Apr	38.6 C (101.5 F)	0.0 C (32.0 F)	32.0 C (89.6 F)	3.6 C (38.5 F)
May	35.2 C (95.4 F)	4.5 C (40.1 F)	33.6 C (92.5 F)	9.6 C (49.3 F)
Jun	34.0 C (93.2 F)	7.1 C (44.8 F)	28.6 C (83.5 F)	11.6 C (52.9 F)
Jul	29.9 C (85.8 F)	6.6 C (43.9 F)	28.2 C (82.8 F)	8.4 C (47.1 F)
Aug	29.9 C (85.8 F)	6.0 C (42.8 F)	27.8 C (82.0 F)	9.6 C (49.3 F)
Sep	29.9 C (85.8 F)	0.0 C (32.0 F)	n/a	n/a
Oct	29.9 C (85.8 F)	0.0 C (32.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-1.2 C (29.8 F)	n/a	n/a
Dec	28.4 C (83.1 F)	-2.0 C (28.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Hermanos Serdan Intl still stand. 1992 holds the most, with 135.

Standing records at Hermanos Serdan Intl by the year they were set
Year set	Standing records
1975	2
1977	10
1978	40
1979	9
1980	3
1982	4
1983	1
1985	1
1986	4
1988	1
1989	5
1991	79
1992	135
1993	72
1994	75
1995	73
1996	58
1997	34
1998	26
1999	26
2000	43
2001	43
2002	45
2003	49
2004	25
2005	44
2006	41
2007	41
2008	38
2009	23
2010	19
2011	19
2012	15
2013	15
2014	10
2015	14
2016	22
2017	27
2018	11
2019	16
2020	20
2021	11
2022	8
2023	57
2024	103
2025	47

Wettest Day of Each Month

Jun: 228.3 mm (9.0 in)

The wettest day on record for each calendar month at Hermanos Serdan Intl. The most was 228.3 mm (9.0 in) on 2 June 2003.

Record daily precipitation for each month at Hermanos Serdan Intl
Month	Record daily precipitation (mm)	Date
Jan	51.1 mm (2.0 in)	2 January 1997
Feb	48.8 mm (1.9 in)	5 February 2010
Mar	56.6 mm (2.2 in)	10 March 2016
Apr	101.1 mm (4.0 in)	29 April 1995
May	202.9 mm (8.0 in)	25 May 2003
Jun	228.3 mm (9.0 in)	2 June 2003
Jul	150.1 mm (5.9 in)	28 July 1998
Aug	228.1 mm (9.0 in)	9 August 1995
Sep	228.3 mm (9.0 in)	5 September 2003
Oct	228.1 mm (9.0 in)	11 October 1997
Nov	99.1 mm (3.9 in)	4 November 1998
Dec	51.1 mm (2.0 in)	21 December 1996

Period of Record Coverage

1975 to 2025

49 years of record at Hermanos Serdan Intl, 1975 to 2025. 49 years have data for under 90 percent of days and are left out of rankings: 1975, 1976, 1977, 1978, 1979, 1980, 1982, 1983 and others.

Days with data per year at Hermanos Serdan Intl
Year	Days with data	Share of year	Complete
1975	2	1%	No
1976	1	0%	No
1977	30	8%	No
1978	80	22%	No
1979	48	13%	No
1980	6	2%	No
1982	4	1%	No
1983	1	0%	No
1984	1	0%	No
1985	3	1%	No
1986	15	4%	No
1987	1	0%	No
1988	4	1%	No
1989	10	3%	No
1991	177	48%	No
1992	249	68%	No
1993	219	60%	No
1994	226	62%	No
1995	224	61%	No
1996	192	52%	No
1997	84	23%	No
1998	73	20%	No
1999	51	14%	No
2000	167	46%	No
2001	163	45%	No
2002	147	40%	No
2003	163	45%	No
2004	161	44%	No
2005	158	43%	No
2006	147	40%	No
2007	171	47%	No
2008	165	45%	No
2009	75	21%	No
2010	39	11%	No
2011	54	15%	No
2012	57	16%	No
2013	54	15%	No
2014	44	12%	No
2015	43	12%	No
2016	93	25%	No
2017	134	37%	No
2018	51	14%	No
2019	56	15%	No
2020	75	20%	No
2021	42	12%	No
2022	48	13%	No
2023	117	32%	No
2024	147	40%	No
2025	99	27%	No

Latest Records

Latest records at Hermanos Serdan Intl
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 June 2025	Hermanos Serdan Intl, MX	daily rain	46.5 mm (1.8 in)	16.0 mm (0.6 in)	8 years	13 of 100 (Routine)
27 May 2025	Hermanos Serdan Intl, MX	daily rain	19.8 mm (0.8 in)	3.3 mm (0.13 in)	12 years	10 of 100 (Routine)
24 May 2025	Hermanos Serdan Intl, MX	daily rain	22.6 mm (0.9 in)	4.6 mm (0.18 in)	18 years	12 of 100 (Routine)
9 May 2025	Hermanos Serdan Intl, MX	daily rain	5.6 mm (0.22 in)	0.5 mm (0.02 in)	34 years	15 of 100 (Routine)
26 April 2025	Hermanos Serdan Intl, MX	daily rain	3.0 mm (0.12 in)	2.7 mm (0.11 in)	19 years	11 of 100 (Routine)
23 February 2025	Hermanos Serdan Intl, MX	daily rain	6.6 mm (0.26 in)	3.6 mm (0.14 in)	48 years	20 of 100 (Routine)
4 February 2025	Hermanos Serdan Intl, MX	daily rain	6.9 mm (0.27 in)	5.4 mm (0.21 in)	30 years	20 of 100 (Routine)
3 February 2025	Hermanos Serdan Intl, MX	daily rain	18.3 mm (0.7 in)	3.8 mm (0.15 in)	13 years	12 of 100 (Routine)
6 October 2024	Hermanos Serdan Intl, MX	daily rain	50.8 mm (2.0 in)	4.3 mm (0.17 in)	6 years	7 of 100 (Routine)
30 July 2024	Hermanos Serdan Intl, MX	daily rain	23.6 mm (0.9 in)	10.1 mm (0.4 in)	7 years	12 of 100 (Routine)
26 July 2024	Hermanos Serdan Intl, MX	daily rain	40.4 mm (1.6 in)	19.3 mm (0.8 in)	17 years	21 of 100 (Routine)
25 July 2024	Hermanos Serdan Intl, MX	daily rain	40.4 mm (1.6 in)	6.4 mm (0.25 in)	17 years	13 of 100 (Routine)
15 June 2024	Hermanos Serdan Intl, MX	daily rain	31.2 mm (1.2 in)	10.6 mm (0.4 in)	21 years	14 of 100 (Routine)
18 February 2024	Hermanos Serdan Intl, MX	daily rain	16.5 mm (0.6 in)	14.5 mm (0.6 in)	28 years	20 of 100 (Routine)
22 January 2024	Hermanos Serdan Intl, MX	daily rain (Tie)	1.5 mm (0.06 in)	tie	1 year	1 of 100 (Routine)
16 December 2023	Hermanos Serdan Intl, MX	daily rain	6.4 mm (0.25 in)	5.9 mm (0.23 in)	30 years	17 of 100 (Routine)
4 December 2023	Hermanos Serdan Intl, MX	daily rain	3.6 mm (0.14 in)	3.6 mm (0.14 in)	46 years	20 of 100 (Routine)
23 November 2023	Hermanos Serdan Intl, MX	daily rain	2.3 mm (0.09 in)	1.0 mm (0.04 in)	28 years	12 of 100 (Routine)
13 August 2023	Hermanos Serdan Intl, MX	daily rain	69.9 mm (2.8 in)	52.1 mm (2.1 in)	28 years	32 of 100 (Routine)
22 July 2023	Hermanos Serdan Intl, MX	daily rain	13.0 mm (0.5 in)	0.8 mm (0.03 in)	10 years	7 of 100 (Routine)

Extremes by Year

1975 to 2025

Yearly extremes at Hermanos Serdan Intl: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.6 C (101.5 F)	1995	30.6 C (87.1 F)	49
Coldest night (TNn)	-2.0 C (28.4 F)	2010	1.8 C (35.2 F)	48
Wettest day (Rx1day)	228.3 mm (9.0 in)	2003	50.0 mm (2.0 in)	49
Wettest five days (Rx5day)	619.9 mm (24.4 in)	1998	93.3 mm (3.7 in)	41
Longest dry spell (CDD)	80 days	2014	24 days	49

Hottest day (TXx)

The hottest day of the year at Hermanos Serdan Intl, 1975 to 2025. The record is 38.6 C (101.5 F) in 1995, marked on the chart; the median year is 30.6 C (87.1 F).

Hottest day (TXx) at Hermanos Serdan Intl by year
Year	Hottest day (TXx)
1975	30.0 C (86.0 F)
1976	26.0 C (78.8 F)
1977	28.0 C (82.4 F)
1978	32.0 C (89.6 F)
1979	32.0 C (89.6 F)
1980	28.0 C (82.4 F)
1982	29.5 C (85.1 F)
1983	22.8 C (73.0 F)
1984	23.4 C (74.1 F)
1985	24.2 C (75.6 F)
1986	28.1 C (82.6 F)
1987	24.4 C (75.9 F)
1988	23.5 C (74.3 F)
1989	24.4 C (75.9 F)
1990	n/a
1991	32.5 C (90.5 F)
1992	34.0 C (93.2 F)
1993	31.5 C (88.7 F)
1994	30.6 C (87.1 F)
1995	38.6 C (101.5 F)
1996	31.4 C (88.5 F)
1997	29.6 C (85.3 F)
1998	33.5 C (92.3 F)
1999	29.9 C (85.8 F)
2000	29.9 C (85.8 F)
2001	31.6 C (88.9 F)
2002	31.7 C (89.1 F)
2003	35.8 C (96.4 F)
2004	29.0 C (84.2 F)
2005	30.7 C (87.3 F)
2006	31.5 C (88.7 F)
2007	30.5 C (86.9 F)
2008	31.5 C (88.7 F)
2009	30.6 C (87.1 F)
2010	28.0 C (82.4 F)
2011	32.0 C (89.6 F)
2012	30.0 C (86.0 F)
2013	30.6 C (87.1 F)
2014	30.6 C (87.1 F)
2015	28.8 C (83.8 F)
2016	32.2 C (90.0 F)
2017	31.6 C (88.9 F)
2018	31.2 C (88.2 F)
2019	31.4 C (88.5 F)
2020	33.8 C (92.8 F)
2021	32.0 C (89.6 F)
2022	30.2 C (86.4 F)
2023	32.6 C (90.7 F)
2024	35.2 C (95.4 F)
2025	33.6 C (92.5 F)

Coldest night (TNn)

The coldest night of the year at Hermanos Serdan Intl, 1975 to 2025. The record is -2.0 C (28.4 F) in 2010, marked on the chart; the median year is 1.8 C (35.2 F).

Coldest night (TNn) at Hermanos Serdan Intl by year
Year	Coldest night (TNn)
1975	5.0 C (41.0 F)
1976	9.0 C (48.2 F)
1977	0.0 C (32.0 F)
1978	0.0 C (32.0 F)
1979	1.0 C (33.8 F)
1980	3.0 C (37.4 F)
1982	4.0 C (39.2 F)
1983	4.0 C (39.2 F)
1984	6.0 C (42.8 F)
1985	3.0 C (37.4 F)
1986	4.6 C (40.3 F)
1987	2.0 C (35.6 F)
1988	13.4 C (56.1 F)
1989	n/a
1990	n/a
1991	1.9 C (35.4 F)
1992	0.0 C (32.0 F)
1993	0.0 C (32.0 F)
1994	-1.6 C (29.1 F)
1995	0.0 C (32.0 F)
1996	-1.5 C (29.3 F)
1997	-0.2 C (31.6 F)
1998	-0.6 C (30.9 F)
1999	-0.8 C (30.6 F)
2000	-0.4 C (31.3 F)
2001	0.7 C (33.3 F)
2002	-1.2 C (29.8 F)
2003	0.4 C (32.7 F)
2004	1.8 C (35.2 F)
2005	0.2 C (32.4 F)
2006	-0.2 C (31.6 F)
2007	3.0 C (37.4 F)
2008	1.0 C (33.8 F)
2009	0.8 C (33.4 F)
2010	-2.0 C (28.4 F)
2011	0.4 C (32.7 F)
2012	4.0 C (39.2 F)
2013	2.0 C (35.6 F)
2014	1.8 C (35.2 F)
2015	2.0 C (35.6 F)
2016	1.8 C (35.2 F)
2017	2.7 C (36.9 F)
2018	2.6 C (36.7 F)
2019	0.8 C (33.4 F)
2020	3.2 C (37.8 F)
2021	4.3 C (39.7 F)
2022	2.4 C (36.3 F)
2023	0.4 C (32.7 F)
2024	2.8 C (37.0 F)
2025	3.6 C (38.5 F)

Wettest day (Rx1day)

The wettest day of the year at Hermanos Serdan Intl, 1975 to 2025. The record is 228.3 mm (9.0 in) in 2003, marked on the chart; the median year is 50.0 mm (2.0 in).

Wettest day (Rx1day) at Hermanos Serdan Intl by year
Year	Wettest day (Rx1day)
1975	n/a
1976	18.0 mm (0.7 in)
1977	18.0 mm (0.7 in)
1978	29.0 mm (1.1 in)
1979	43.9 mm (1.7 in)
1980	0.0 mm (0.00 in)
1982	2.5 mm (0.10 in)
1983	3.3 mm (0.13 in)
1984	0.0 mm (0.00 in)
1985	14.0 mm (0.6 in)
1986	57.9 mm (2.3 in)
1987	0.0 mm (0.00 in)
1988	55.1 mm (2.2 in)
1989	80.3 mm (3.2 in)
1990	48.3 mm (1.9 in)
1991	44.2 mm (1.7 in)
1992	53.1 mm (2.1 in)
1993	54.4 mm (2.1 in)
1994	48.5 mm (1.9 in)
1995	228.1 mm (9.0 in)
1996	201.9 mm (7.9 in)
1997	228.1 mm (9.0 in)
1998	228.1 mm (9.0 in)
1999	26.9 mm (1.1 in)
2000	44.7 mm (1.8 in)
2001	99.3 mm (3.9 in)
2002	202.9 mm (8.0 in)
2003	228.3 mm (9.0 in)
2004	99.3 mm (3.9 in)
2005	30.7 mm (1.2 in)
2006	61.0 mm (2.4 in)
2007	55.9 mm (2.2 in)
2008	39.9 mm (1.6 in)
2009	57.7 mm (2.3 in)
2010	48.8 mm (1.9 in)
2011	61.0 mm (2.4 in)
2012	82.0 mm (3.2 in)
2013	44.5 mm (1.8 in)
2014	50.0 mm (2.0 in)
2015	29.7 mm (1.2 in)
2016	81.0 mm (3.2 in)
2017	51.6 mm (2.0 in)
2018	46.5 mm (1.8 in)
2019	31.8 mm (1.3 in)
2020	51.8 mm (2.0 in)
2021	74.7 mm (2.9 in)
2022	23.1 mm (0.9 in)
2023	69.9 mm (2.8 in)
2024	50.8 mm (2.0 in)
2025	46.5 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hermanos Serdan Intl, 1975 to 2025. The record is 619.9 mm (24.4 in) in 1998, marked on the chart; the median year is 93.3 mm (3.7 in).

Wettest five days (Rx5day) at Hermanos Serdan Intl by year
Year	Wettest five days (Rx5day)
1975	n/a
1976	n/a
1977	0.0 mm (0.00 in)
1978	0.0 mm (0.00 in)
1979	n/a
1980	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	99.0 mm (3.9 in)
1987	n/a
1988	130.8 mm (5.1 in)
1989	86.5 mm (3.4 in)
1990	39.1 mm (1.5 in)
1991	73.0 mm (2.9 in)
1992	91.3 mm (3.6 in)
1993	99.5 mm (3.9 in)
1994	75.5 mm (3.0 in)
1995	268.7 mm (10.6 in)
1996	280.4 mm (11.0 in)
1997	312.6 mm (12.3 in)
1998	619.9 mm (24.4 in)
1999	42.4 mm (1.7 in)
2000	106.0 mm (4.2 in)
2001	100.6 mm (4.0 in)
2002	228.8 mm (9.0 in)
2003	320.2 mm (12.6 in)
2004	104.9 mm (4.1 in)
2005	62.0 mm (2.4 in)
2006	74.4 mm (2.9 in)
2007	163.3 mm (6.4 in)
2008	88.4 mm (3.5 in)
2009	65.0 mm (2.6 in)
2010	51.3 mm (2.0 in)
2011	93.3 mm (3.7 in)
2012	108.7 mm (4.3 in)
2013	97.6 mm (3.8 in)
2014	96.5 mm (3.8 in)
2015	53.3 mm (2.1 in)
2016	107.6 mm (4.2 in)
2017	86.6 mm (3.4 in)
2018	7.1 mm (0.28 in)
2019	42.2 mm (1.7 in)
2020	129.5 mm (5.1 in)
2021	19.9 mm (0.8 in)
2022	34.3 mm (1.4 in)
2023	109.0 mm (4.3 in)
2024	102.6 mm (4.0 in)
2025	82.6 mm (3.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hermanos Serdan Intl, 1975 to 2025. The record is 80 days in 2014, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at Hermanos Serdan Intl by year
Year	Longest dry spell (CDD)
1975	n/a
1976	3 days
1977	8 days
1978	7 days
1979	4 days
1980	1 day
1982	1 day
1983	1 day
1984	1 day
1985	1 day
1986	17 days
1987	1 day
1988	14 days
1989	20 days
1990	22 days
1991	14 days
1992	14 days
1993	17 days
1994	44 days
1995	24 days
1996	45 days
1997	23 days
1998	28 days
1999	15 days
2000	31 days
2001	36 days
2002	20 days
2003	25 days
2004	24 days
2005	46 days
2006	47 days
2007	60 days
2008	52 days
2009	37 days
2010	30 days
2011	79 days
2012	41 days
2013	34 days
2014	80 days
2015	70 days
2016	47 days
2017	68 days
2018	6 days
2019	10 days
2020	42 days
2021	24 days
2022	23 days
2023	16 days
2024	38 days
2025	31 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 Hermanos Serdan Intl standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hermanos Serdan Intl 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 2026-10-15 (15 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).