San Jose El Alto Weather Records (MXN00011150)

Record envelope, standing records and threshold days for San Jose El Alto (MXN00011150), Mexico, with 34 years of record.

Key Facts for San Jose El Alto

San Jose El Alto (MXN00011150) is a weather station in Mexico at 20.70 latitude and -101.25 longitude, 1,775 m (5,823 ft) above sea level.
The station reports from 1979 to 2012, 34 years of record.
1,464 records set at San Jose El Alto still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
San Jose El Alto set a daily record low maximum temperature of 17.8 C (64.0 F) on 26 November 2012.

About the Station

Location: Mexico, 20.70 latitude, -101.25 longitude.
Elevation: 1,775 m (5,823 ft).
Period of record: 1979 to 2012, 34 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 San Jose El Alto. 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 Jose El Alto, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	33.9 C (93.0 F)	-5.0 C (23.0 F)	n/a	n/a
Feb	31.7 C (89.1 F)	-3.3 C (26.1 F)	n/a	n/a
Mar	35.0 C (95.0 F)	-1.1 C (30.0 F)	n/a	n/a
Apr	36.7 C (98.1 F)	0.0 C (32.0 F)	n/a	n/a
May	38.9 C (102.0 F)	3.9 C (39.0 F)	n/a	n/a
Jun	37.8 C (100.0 F)	3.9 C (39.0 F)	n/a	n/a
Jul	33.9 C (93.0 F)	5.0 C (41.0 F)	n/a	n/a
Aug	33.9 C (93.0 F)	0.6 C (33.1 F)	n/a	n/a
Sep	30.6 C (87.1 F)	0.0 C (32.0 F)	n/a	n/a
Oct	32.8 C (91.0 F)	-4.4 C (24.1 F)	n/a	n/a
Nov	33.3 C (91.9 F)	-8.3 C (17.1 F)	n/a	n/a
Dec	31.1 C (88.0 F)	-7.2 C (19.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Jose El Alto still stand. 2012 holds the most, with 141.

Standing records at San Jose El Alto by the year they were set
Year set	Standing records
1979	11
1980	5
1981	39
1982	50
1983	74
1984	20
1985	21
1986	39
1987	36
1988	39
1989	36
1990	31
1991	18
1992	31
1993	20
1994	63
1995	81
1996	54
1997	65
1998	21
1999	19
2000	55
2001	48
2002	57
2003	40
2004	27
2005	19
2006	7
2007	31
2008	19
2009	54
2010	78
2011	115
2012	141

All-Time Record Progression

1 new records

1 all-time records were set at San Jose El Alto between 29 November 2011 and 29 November 2011. Each dot is a new record.

Wettest Day of Each Month

Sep: 112.8 mm (4.4 in)

The wettest day on record for each calendar month at San Jose El Alto. The most was 112.8 mm (4.4 in) on 5 September 2002.

Record daily precipitation for each month at San Jose El Alto
Month	Record daily precipitation (mm)	Date
Jan	38.4 mm (1.5 in)	24 January 1980
Feb	87.6 mm (3.4 in)	4 February 2010
Mar	15.7 mm (0.6 in)	8 March 1988
Apr	11.9 mm (0.5 in)	18 April 1999
May	57.9 mm (2.3 in)	30 May 1986
Jun	60.7 mm (2.4 in)	29 June 2006
Jul	69.9 mm (2.8 in)	30 July 2011
Aug	55.9 mm (2.2 in)	30 August 2004
Sep	112.8 mm (4.4 in)	5 September 2002
Oct	63.0 mm (2.5 in)	8 October 1982
Nov	34.3 mm (1.4 in)	5 November 2002
Dec	30.0 mm (1.2 in)	3 December 1979

Period of Record Coverage

1979 to 2012

34 years of record at San Jose El Alto, 1979 to 2012. 5 years have data for under 90 percent of days and are left out of rankings: 1979, 1980, 1981, 1982, 1998.

Days with data per year at San Jose El Alto
Year	Days with data	Share of year	Complete
1979	90	25%	No
1980	59	16%	No
1981	306	84%	No
1982	304	83%	No
1983	365	100%	Yes
1984	365	100%	Yes
1985	365	100%	Yes
1986	364	100%	Yes
1987	364	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	336	92%	Yes
1993	364	100%	Yes
1994	364	100%	Yes
1995	364	100%	Yes
1996	360	98%	Yes
1997	357	98%	Yes
1998	302	83%	No
1999	363	99%	Yes
2000	364	99%	Yes
2001	365	100%	Yes
2002	354	97%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	363	99%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	365	100%	Yes
2009	363	99%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	335	92%	Yes

Latest Records

Latest records at San Jose El Alto
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 November 2012	San Jose El Alto, MX	daily low max	17.8 C (64.0 F)	1.1 C (2.0 F)	30 years	15 of 100 (Routine)
25 November 2012	San Jose El Alto, MX	daily low max	15.6 C (60.1 F)	2.2 C (4.0 F)	6 years	11 of 100 (Routine)
24 November 2012	San Jose El Alto, MX	daily low max	16.7 C (62.1 F)	2.2 C (4.0 F)	10 years	13 of 100 (Routine)
21 November 2012	San Jose El Alto, MX	daily low min	0.0 C (32.0 F)	1.7 C (3.1 F)	16 years	12 of 100 (Routine)
20 November 2012	San Jose El Alto, MX	daily low min	-1.1 C (30.0 F)	1.7 C (3.1 F)	12 years	11 of 100 (Routine)
19 November 2012	San Jose El Alto, MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	31 years	13 of 100 (Routine)
19 November 2012	San Jose El Alto, MX	daily low max (Tie)	20.0 C (68.0 F)	tie	9 years	1 of 100 (Routine)
15 November 2012	San Jose El Alto, MX	daily low max	17.8 C (64.0 F)	2.2 C (4.0 F)	10 years	13 of 100 (Routine)
14 November 2012	San Jose El Alto, MX	daily low min (Tie)	0.6 C (33.1 F)	tie	16 years	1 of 100 (Routine)
9 November 2012	San Jose El Alto, MX	daily low min	-1.1 C (30.0 F)	1.1 C (2.0 F)	16 years	10 of 100 (Routine)
9 November 2012	San Jose El Alto, MX	daily low max (Tie)	18.9 C (66.0 F)	tie	11 years	1 of 100 (Routine)
8 November 2012	San Jose El Alto, MX	daily low min	-1.1 C (30.0 F)	2.8 C (5.0 F)	30 years	20 of 100 (Routine)
8 November 2012	San Jose El Alto, MX	daily low max	17.8 C (64.0 F)	2.8 C (5.0 F)	11 years	15 of 100 (Routine)
7 November 2012	San Jose El Alto, MX	daily low max	17.8 C (64.0 F)	2.2 C (4.0 F)	10 years	13 of 100 (Routine)
6 November 2012	San Jose El Alto, MX	daily low max	12.8 C (55.0 F)	7.2 C (13.0 F)	1 year	27 of 100 (Routine)
5 November 2012	San Jose El Alto, MX	monthly low max (Tie)	10.6 C (51.1 F)	tie	0 years	3 of 100 (Routine)
4 November 2012	San Jose El Alto, MX	daily low max	15.6 C (60.1 F)	3.3 C (5.9 F)	11 years	17 of 100 (Routine)
2 November 2012	San Jose El Alto, MX	daily low max (Tie)	18.9 C (66.0 F)	tie	1 year	0 of 100 (Routine)
1 November 2012	San Jose El Alto, MX	daily low max (Tie)	20.0 C (68.0 F)	tie	1 year	0 of 100 (Routine)
31 October 2012	San Jose El Alto, MX	daily low max (Tie)	20.0 C (68.0 F)	tie	3 years	0 of 100 (Routine)

Climate Trend

27 complete years, 1983 to 2011

One stripe for each of 27 complete years at San Jose El Alto, 1983 to 2011. Blue stripes are years cooler than the station's own mean of 17.4 C (63.3 F); red stripes are warmer. The coolest year was 2011, at 13.0 C (55.4 F), and the warmest was 1994, at 19.4 C (67.0 F). The strongest colour marks a difference of 4.4 C (7.9 F).

Annual mean temperature at San Jose El Alto as warming stripes, 1983 to 2011
Year	Annual mean temperature	Difference from the station mean
1983	17.9 C	+0.43 C
1984	17.8 C	+0.36 C
1985	18.1 C	+0.68 C
1986	17.9 C	+0.52 C
1987	17.6 C	+0.19 C
1988	18.4 C	+1.02 C
1989	18.3 C	+0.84 C
1990	18.6 C	+1.14 C
1991	18.1 C	+0.70 C
1993	18.2 C	+0.82 C
1994	19.4 C	+2.02 C
1995	19.3 C	+1.84 C
1996	18.1 C	+0.65 C
1997	18.0 C	+0.60 C
1999	18.0 C	+0.60 C
2000	14.4 C	-3.00 C
2001	14.9 C	-2.57 C
2002	15.0 C	-2.42 C
2003	14.8 C	-2.61 C
2004	17.7 C	+0.25 C
2005	18.9 C	+1.51 C
2006	18.2 C	+0.77 C
2007	19.1 C	+1.71 C
2008	18.8 C	+1.40 C
2009	16.3 C	-1.10 C
2010	15.4 C	-2.05 C
2011	13.0 C	-4.40 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 2012

Yearly extremes at San Jose El Alto: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	1983	35.0 C (95.0 F)	34
Coldest night (TNn)	-8.3 C (17.1 F)	2011	-1.1 C (30.0 F)	34
Wettest day (Rx1day)	112.8 mm (4.4 in)	2002	44.2 mm (1.7 in)	34
Wettest five days (Rx5day)	288.5 mm (11.4 in)	2011	89.0 mm (3.5 in)	34
Longest dry spell (CDD)	161 days	2011	87 days	34

Hottest day (TXx)

The hottest day of the year at San Jose El Alto, 1979 to 2012. The record is 38.9 C (102.0 F) in 1983, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at San Jose El Alto by year
Year	Hottest day (TXx)
1979	31.7 C (89.1 F)
1980	28.9 C (84.0 F)
1981	35.0 C (95.0 F)
1982	35.0 C (95.0 F)
1983	38.9 C (102.0 F)
1984	35.0 C (95.0 F)
1985	35.6 C (96.1 F)
1986	35.6 C (96.1 F)
1987	35.0 C (95.0 F)
1988	35.6 C (96.1 F)
1989	37.8 C (100.0 F)
1990	36.7 C (98.1 F)
1991	35.0 C (95.0 F)
1992	33.9 C (93.0 F)
1993	35.6 C (96.1 F)
1994	35.6 C (96.1 F)
1995	36.7 C (98.1 F)
1996	36.7 C (98.1 F)
1997	35.0 C (95.0 F)
1998	30.6 C (87.1 F)
1999	33.9 C (93.0 F)
2000	30.6 C (87.1 F)
2001	32.2 C (90.0 F)
2002	31.7 C (89.1 F)
2003	32.8 C (91.0 F)
2004	33.9 C (93.0 F)
2005	35.6 C (96.1 F)
2006	35.0 C (95.0 F)
2007	35.0 C (95.0 F)
2008	35.6 C (96.1 F)
2009	35.0 C (95.0 F)
2010	32.8 C (91.0 F)
2011	30.0 C (86.0 F)
2012	28.9 C (84.0 F)

Coldest night (TNn)

The coldest night of the year at San Jose El Alto, 1979 to 2012. The record is -8.3 C (17.1 F) in 2011, marked on the chart; the median year is -1.1 C (30.0 F).

Coldest night (TNn) at San Jose El Alto by year
Year	Coldest night (TNn)
1979	0.6 C (33.1 F)
1980	-1.1 C (30.0 F)
1981	0.0 C (32.0 F)
1982	-1.1 C (30.0 F)
1983	-2.2 C (28.0 F)
1984	-1.1 C (30.0 F)
1985	-2.2 C (28.0 F)
1986	-4.4 C (24.1 F)
1987	-3.3 C (26.1 F)
1988	-2.2 C (28.0 F)
1989	-4.4 C (24.1 F)
1990	0.0 C (32.0 F)
1991	0.0 C (32.0 F)
1992	0.0 C (32.0 F)
1993	0.0 C (32.0 F)
1994	0.0 C (32.0 F)
1995	0.6 C (33.1 F)
1996	0.0 C (32.0 F)
1997	0.6 C (33.1 F)
1998	1.1 C (34.0 F)
1999	0.0 C (32.0 F)
2000	-2.2 C (28.0 F)
2001	-3.3 C (26.1 F)
2002	-6.1 C (21.0 F)
2003	-2.2 C (28.0 F)
2004	-2.2 C (28.0 F)
2005	1.7 C (35.1 F)
2006	0.0 C (32.0 F)
2007	3.9 C (39.0 F)
2008	0.0 C (32.0 F)
2009	-2.2 C (28.0 F)
2010	-7.2 C (19.0 F)
2011	-8.3 C (17.1 F)
2012	-5.0 C (23.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Jose El Alto, 1979 to 2012. The record is 112.8 mm (4.4 in) in 2002, marked on the chart; the median year is 44.2 mm (1.7 in).

Wettest day (Rx1day) at San Jose El Alto by year
Year	Wettest day (Rx1day)
1979	30.0 mm (1.2 in)
1980	38.4 mm (1.5 in)
1981	53.1 mm (2.1 in)
1982	63.0 mm (2.5 in)
1983	50.8 mm (2.0 in)
1984	40.1 mm (1.6 in)
1985	29.0 mm (1.1 in)
1986	57.9 mm (2.3 in)
1987	34.8 mm (1.4 in)
1988	38.9 mm (1.5 in)
1989	43.9 mm (1.7 in)
1990	39.4 mm (1.6 in)
1991	48.3 mm (1.9 in)
1992	34.8 mm (1.4 in)
1993	52.6 mm (2.1 in)
1994	39.9 mm (1.6 in)
1995	54.4 mm (2.1 in)
1996	74.9 mm (2.9 in)
1997	36.8 mm (1.4 in)
1998	31.8 mm (1.3 in)
1999	45.2 mm (1.8 in)
2000	44.5 mm (1.8 in)
2001	33.5 mm (1.3 in)
2002	112.8 mm (4.4 in)
2003	55.9 mm (2.2 in)
2004	55.9 mm (2.2 in)
2005	28.2 mm (1.1 in)
2006	60.7 mm (2.4 in)
2007	47.0 mm (1.9 in)
2008	41.9 mm (1.6 in)
2009	20.3 mm (0.8 in)
2010	87.6 mm (3.4 in)
2011	69.9 mm (2.8 in)
2012	27.9 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Jose El Alto, 1979 to 2012. The record is 288.5 mm (11.4 in) in 2011, marked on the chart; the median year is 89.0 mm (3.5 in).

Wettest five days (Rx5day) at San Jose El Alto by year
Year	Wettest five days (Rx5day)
1979	35.6 mm (1.4 in)
1980	103.0 mm (4.1 in)
1981	112.3 mm (4.4 in)
1982	82.4 mm (3.2 in)
1983	79.2 mm (3.1 in)
1984	76.5 mm (3.0 in)
1985	63.3 mm (2.5 in)
1986	88.4 mm (3.5 in)
1987	83.0 mm (3.3 in)
1988	91.8 mm (3.6 in)
1989	89.5 mm (3.5 in)
1990	68.3 mm (2.7 in)
1991	108.8 mm (4.3 in)
1992	95.5 mm (3.8 in)
1993	86.8 mm (3.4 in)
1994	93.8 mm (3.7 in)
1995	106.2 mm (4.2 in)
1996	114.3 mm (4.5 in)
1997	63.7 mm (2.5 in)
1998	78.3 mm (3.1 in)
1999	89.9 mm (3.5 in)
2000	64.0 mm (2.5 in)
2001	61.7 mm (2.4 in)
2002	145.6 mm (5.7 in)
2003	170.0 mm (6.7 in)
2004	115.5 mm (4.5 in)
2005	57.7 mm (2.3 in)
2006	134.7 mm (5.3 in)
2007	141.3 mm (5.6 in)
2008	75.4 mm (3.0 in)
2009	71.6 mm (2.8 in)
2010	157.2 mm (6.2 in)
2011	288.5 mm (11.4 in)
2012	60.7 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Jose El Alto, 1979 to 2012. The record is 161 days in 2011, marked on the chart; the median year is 87 days.

Longest dry spell (CDD) at San Jose El Alto by year
Year	Longest dry spell (CDD)
1979	62 days
1980	18 days
1981	42 days
1982	53 days
1983	70 days
1984	64 days
1985	57 days
1986	69 days
1987	93 days
1988	99 days
1989	121 days
1990	68 days
1991	125 days
1992	51 days
1993	117 days
1994	109 days
1995	87 days
1996	138 days
1997	77 days
1998	70 days
1999	107 days
2000	146 days
2001	82 days
2002	92 days
2003	115 days
2004	39 days
2005	79 days
2006	86 days
2007	96 days
2008	127 days
2009	94 days
2010	99 days
2011	161 days
2012	37 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 Jose El Alto standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Jose El Alto 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).