San Joaquin Weather Records (MXN00025172)

Record envelope, standing records and threshold days for San Joaquin (MXN00025172), Mexico, with 35 years of record.

Key Facts for San Joaquin

San Joaquin (MXN00025172) is a weather station in Mexico at 25.67 latitude and -108.02 longitude, 144 m (472 ft) above sea level.
The station reports from 1978 to 2012, 35 years of record.
1,464 records set at San Joaquin still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
San Joaquin set a daily record precipitation of 18.3 mm (0.7 in) on 30 December 2012.

About the Station

Location: Mexico, 25.67 latitude, -108.02 longitude.
Elevation: 144 m (472 ft).
Period of record: 1978 to 2012, 35 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 Joaquin. 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 Joaquin, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.9 C (102.0 F)	0.0 C (32.0 F)	n/a	n/a
Feb	40.6 C (105.1 F)	0.0 C (32.0 F)	n/a	n/a
Mar	41.1 C (106.0 F)	2.2 C (36.0 F)	n/a	n/a
Apr	45.0 C (113.0 F)	1.7 C (35.1 F)	n/a	n/a
May	47.8 C (118.0 F)	4.4 C (39.9 F)	n/a	n/a
Jun	47.8 C (118.0 F)	10.0 C (50.0 F)	n/a	n/a
Jul	46.7 C (116.1 F)	11.7 C (53.1 F)	n/a	n/a
Aug	45.6 C (114.1 F)	12.8 C (55.0 F)	n/a	n/a
Sep	43.9 C (111.0 F)	13.9 C (57.0 F)	n/a	n/a
Oct	43.3 C (109.9 F)	6.7 C (44.1 F)	n/a	n/a
Nov	42.8 C (109.0 F)	0.6 C (33.1 F)	n/a	n/a
Dec	39.4 C (102.9 F)	0.0 C (32.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Joaquin still stand. 1980 holds the most, with 161.

Standing records at San Joaquin by the year they were set
Year set	Standing records
1978	12
1979	136
1980	161
1981	83
1982	81
1983	36
1984	39
1985	32
1986	42
1987	29
1988	9
1989	16
1990	53
1991	27
1992	36
1993	21
1994	24
1995	48
1996	14
1997	49
1998	33
1999	43
2000	108
2001	29
2002	39
2003	29
2004	31
2005	22
2006	25
2007	42
2009	39
2010	30
2011	30
2012	16

Wettest Day of Each Month

Sep: 259.8 mm (10.2 in)

The wettest day on record for each calendar month at San Joaquin. The most was 259.8 mm (10.2 in) on 29 September 1982.

Record daily precipitation for each month at San Joaquin
Month	Record daily precipitation (mm)	Date
Jan	59.9 mm (2.4 in)	29 January 1984
Feb	66.8 mm (2.6 in)	5 February 2005
Mar	18.8 mm (0.7 in)	3 March 1980
Apr	23.4 mm (0.9 in)	3 April 1997
May	27.4 mm (1.1 in)	19 May 1979
Jun	119.9 mm (4.7 in)	23 June 1984
Jul	119.9 mm (4.7 in)	16 July 1990
Aug	159.8 mm (6.3 in)	4 August 2005
Sep	259.8 mm (10.2 in)	29 September 1982
Oct	150.9 mm (5.9 in)	25 October 2006
Nov	140.0 mm (5.5 in)	12 November 1994
Dec	162.8 mm (6.4 in)	28 December 1990

Period of Record Coverage

1978 to 2012

34 years of record at San Joaquin, 1978 to 2012. 8 years have data for under 90 percent of days and are left out of rankings: 1978, 1987, 1988, 1989, 1994, 1996, 2009, 2012.

Days with data per year at San Joaquin
Year	Days with data	Share of year	Complete
1978	60	16%	No
1979	365	100%	Yes
1980	365	100%	Yes
1981	349	96%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	364	100%	Yes
1987	229	63%	No
1988	181	49%	No
1989	231	63%	No
1990	365	100%	Yes
1991	365	100%	Yes
1992	365	100%	Yes
1993	365	100%	Yes
1994	326	89%	No
1995	365	100%	Yes
1996	144	39%	No
1997	364	100%	Yes
1998	364	100%	Yes
1999	348	95%	Yes
2000	358	98%	Yes
2001	365	100%	Yes
2002	364	100%	Yes
2003	364	100%	Yes
2004	365	100%	Yes
2005	365	100%	Yes
2006	364	100%	Yes
2007	331	91%	Yes
2009	275	75%	No
2010	365	100%	Yes
2011	365	100%	Yes
2012	244	67%	No

Latest Records

Latest records at San Joaquin
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 December 2012	San Joaquin, MX	daily rain	18.3 mm (0.7 in)	8.9 mm (0.35 in)	30 years	16 of 100 (Routine)
30 December 2012	San Joaquin, MX	daily low max (Tie)	20.0 C (68.0 F)	tie	22 years	2 of 100 (Routine)
16 December 2012	San Joaquin, MX	daily low max	23.9 C (75.0 F)	1.1 C (2.0 F)	28 years	13 of 100 (Routine)
15 December 2012	San Joaquin, MX	daily low max	21.7 C (71.1 F)	1.1 C (2.0 F)	25 years	12 of 100 (Routine)
14 December 2012	San Joaquin, MX	daily high min (Tie)	16.7 C (62.1 F)	tie	1 year	0 of 100 (Routine)
13 December 2012	San Joaquin, MX	daily rain	27.4 mm (1.1 in)	11.7 mm (0.5 in)	28 years	16 of 100 (Routine)
9 November 2012	San Joaquin, MX	daily high min	16.7 C (62.1 F)	0.6 C (1.1 F)	19 years	9 of 100 (Routine)
16 October 2012	San Joaquin, MX	daily rain	32.8 mm (1.3 in)	29.0 mm (1.1 in)	13 years	18 of 100 (Routine)
7 October 2012	San Joaquin, MX	daily high min (Tie)	23.3 C (73.9 F)	tie	33 years	3 of 100 (Routine)
26 May 2012	San Joaquin, MX	daily high min	23.9 C (75.0 F)	3.3 C (5.9 F)	17 years	16 of 100 (Routine)
25 May 2012	San Joaquin, MX	daily high min	23.9 C (75.0 F)	1.7 C (3.1 F)	8 years	9 of 100 (Routine)
24 May 2012	San Joaquin, MX	daily high min (Tie)	21.7 C (71.1 F)	tie	28 years	2 of 100 (Routine)
23 May 2012	San Joaquin, MX	daily high min	22.8 C (73.0 F)	1.1 C (2.0 F)	3 years	5 of 100 (Routine)
22 May 2012	San Joaquin, MX	daily high min	22.8 C (73.0 F)	1.7 C (3.1 F)	9 years	9 of 100 (Routine)
16 May 2012	San Joaquin, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	22 years	2 of 100 (Routine)
5 May 2012	San Joaquin, MX	daily high min	20.0 C (68.0 F)	1.7 C (3.1 F)	3 years	7 of 100 (Routine)
23 April 2012	San Joaquin, MX	daily high min (Tie)	15.6 C (60.1 F)	tie	30 years	3 of 100 (Routine)
11 March 2012	San Joaquin, MX	daily low min	6.7 C (44.1 F)	1.1 C (2.0 F)	20 years	12 of 100 (Routine)
10 March 2012	San Joaquin, MX	daily low min (Tie)	5.0 C (41.0 F)	tie	33 years	3 of 100 (Routine)
9 March 2012	San Joaquin, MX	daily low min	5.6 C (42.1 F)	1.1 C (2.0 F)	18 years	11 of 100 (Routine)

Climate Trend

23 complete years, 1979 to 2011

One stripe for each of 23 complete years at San Joaquin, 1979 to 2011. Blue stripes are years cooler than the station's own mean of 24.9 C (76.9 F); red stripes are warmer. The coolest year was 1979, at 23.4 C (74.1 F), and the warmest was 2003, at 25.8 C (78.4 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at San Joaquin as warming stripes, 1979 to 2011
Year	Annual mean temperature	Difference from the station mean
1979	23.4 C	-1.52 C
1980	24.6 C	-0.34 C
1981	24.1 C	-0.85 C
1982	25.5 C	+0.59 C
1983	24.8 C	-0.18 C
1984	24.7 C	-0.23 C
1985	24.8 C	-0.15 C
1986	25.1 C	+0.21 C
1990	24.8 C	-0.11 C
1991	24.4 C	-0.53 C
1992	25.0 C	+0.10 C
1993	25.1 C	+0.18 C
1995	25.6 C	+0.68 C
1998	25.4 C	+0.42 C
2000	23.5 C	-1.41 C
2001	25.1 C	+0.19 C
2002	25.8 C	+0.82 C
2003	25.8 C	+0.84 C
2004	24.7 C	-0.19 C
2005	25.5 C	+0.54 C
2006	25.6 C	+0.65 C
2010	25.0 C	+0.04 C
2011	25.1 C	+0.17 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

1978 to 2012

Yearly extremes at San Joaquin: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	47.8 C (118.0 F)	1982	43.3 C (109.9 F)	34
Coldest night (TNn)	0.0 C (32.0 F)	1998	2.5 C (36.5 F)	34
Wettest day (Rx1day)	259.8 mm (10.2 in)	1982	88.9 mm (3.5 in)	35
Wettest five days (Rx5day)	296.2 mm (11.7 in)	1998	148.6 mm (5.9 in)	35
Longest dry spell (CDD)	182 days	1982	110 days	35

Hottest day (TXx)

The hottest day of the year at San Joaquin, 1978 to 2012. The record is 47.8 C (118.0 F) in 1982, marked on the chart; the median year is 43.3 C (109.9 F).

Hottest day (TXx) at San Joaquin by year
Year	Hottest day (TXx)
1978	35.6 C (96.1 F)
1979	45.0 C (113.0 F)
1980	44.4 C (111.9 F)
1981	41.7 C (107.1 F)
1982	47.8 C (118.0 F)
1983	42.8 C (109.0 F)
1984	43.3 C (109.9 F)
1985	41.7 C (107.1 F)
1986	43.9 C (111.0 F)
1987	43.9 C (111.0 F)
1988	42.8 C (109.0 F)
1989	41.1 C (106.0 F)
1990	42.2 C (108.0 F)
1991	43.9 C (111.0 F)
1992	43.3 C (109.9 F)
1993	43.9 C (111.0 F)
1994	42.8 C (109.0 F)
1995	45.6 C (114.1 F)
1996	40.0 C (104.0 F)
1997	43.9 C (111.0 F)
1998	46.7 C (116.1 F)
1999	45.0 C (113.0 F)
2000	43.3 C (109.9 F)
2001	41.7 C (107.1 F)
2002	45.0 C (113.0 F)
2003	43.3 C (109.9 F)
2004	45.6 C (114.1 F)
2005	42.8 C (109.0 F)
2006	44.4 C (111.9 F)
2007	47.8 C (118.0 F)
2008	n/a
2009	45.0 C (113.0 F)
2010	42.8 C (109.0 F)
2011	40.6 C (105.1 F)
2012	41.7 C (107.1 F)

Coldest night (TNn)

The coldest night of the year at San Joaquin, 1978 to 2012. The record is 0.0 C (32.0 F) in 1998, marked on the chart; the median year is 2.5 C (36.5 F).

Coldest night (TNn) at San Joaquin by year
Year	Coldest night (TNn)
1978	2.8 C (37.0 F)
1979	0.6 C (33.1 F)
1980	1.7 C (35.1 F)
1981	2.2 C (36.0 F)
1982	2.8 C (37.0 F)
1983	2.8 C (37.0 F)
1984	3.9 C (39.0 F)
1985	3.9 C (39.0 F)
1986	5.0 C (41.0 F)
1987	3.3 C (37.9 F)
1988	1.7 C (35.1 F)
1989	3.9 C (39.0 F)
1990	1.7 C (35.1 F)
1991	5.0 C (41.0 F)
1992	2.8 C (37.0 F)
1993	3.3 C (37.9 F)
1994	1.7 C (35.1 F)
1995	4.4 C (39.9 F)
1996	3.3 C (37.9 F)
1997	0.6 C (33.1 F)
1998	0.0 C (32.0 F)
1999	0.6 C (33.1 F)
2000	0.6 C (33.1 F)
2001	0.6 C (33.1 F)
2002	1.7 C (35.1 F)
2003	1.1 C (34.0 F)
2004	1.1 C (34.0 F)
2005	2.8 C (37.0 F)
2006	0.0 C (32.0 F)
2007	0.6 C (33.1 F)
2008	n/a
2009	5.0 C (41.0 F)
2010	5.0 C (41.0 F)
2011	0.0 C (32.0 F)
2012	3.9 C (39.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Joaquin, 1978 to 2012. The record is 259.8 mm (10.2 in) in 1982, marked on the chart; the median year is 88.9 mm (3.5 in).

Wettest day (Rx1day) at San Joaquin by year
Year	Wettest day (Rx1day)
1978	2.3 mm (0.09 in)
1979	62.0 mm (2.4 in)
1980	80.3 mm (3.2 in)
1981	97.8 mm (3.9 in)
1982	259.8 mm (10.2 in)
1983	86.9 mm (3.4 in)
1984	119.9 mm (4.7 in)
1985	67.8 mm (2.7 in)
1986	64.8 mm (2.6 in)
1987	99.8 mm (3.9 in)
1988	30.0 mm (1.2 in)
1989	66.8 mm (2.6 in)
1990	162.8 mm (6.4 in)
1991	83.8 mm (3.3 in)
1992	95.3 mm (3.8 in)
1993	61.5 mm (2.4 in)
1994	140.0 mm (5.5 in)
1995	91.4 mm (3.6 in)
1996	63.0 mm (2.5 in)
1997	94.5 mm (3.7 in)
1998	203.5 mm (8.0 in)
1999	74.9 mm (2.9 in)
2000	101.9 mm (4.0 in)
2001	72.4 mm (2.9 in)
2002	88.9 mm (3.5 in)
2003	111.0 mm (4.4 in)
2004	117.9 mm (4.6 in)
2005	159.8 mm (6.3 in)
2006	150.9 mm (5.9 in)
2007	95.8 mm (3.8 in)
2008	104.9 mm (4.1 in)
2009	82.8 mm (3.3 in)
2010	82.8 mm (3.3 in)
2011	85.1 mm (3.4 in)
2012	32.8 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Joaquin, 1978 to 2012. The record is 296.2 mm (11.7 in) in 1998, marked on the chart; the median year is 148.6 mm (5.9 in).

Wettest five days (Rx5day) at San Joaquin by year
Year	Wettest five days (Rx5day)
1978	2.3 mm (0.09 in)
1979	96.6 mm (3.8 in)
1980	131.4 mm (5.2 in)
1981	163.6 mm (6.4 in)
1982	290.8 mm (11.4 in)
1983	151.2 mm (6.0 in)
1984	155.4 mm (6.1 in)
1985	175.3 mm (6.9 in)
1986	148.6 mm (5.9 in)
1987	110.7 mm (4.4 in)
1988	30.8 mm (1.2 in)
1989	156.0 mm (6.1 in)
1990	263.4 mm (10.4 in)
1991	181.4 mm (7.1 in)
1992	123.2 mm (4.9 in)
1993	72.7 mm (2.9 in)
1994	194.4 mm (7.7 in)
1995	156.7 mm (6.2 in)
1996	73.9 mm (2.9 in)
1997	115.4 mm (4.5 in)
1998	296.2 mm (11.7 in)
1999	83.3 mm (3.3 in)
2000	151.7 mm (6.0 in)
2001	118.4 mm (4.7 in)
2002	162.5 mm (6.4 in)
2003	160.3 mm (6.3 in)
2004	149.7 mm (5.9 in)
2005	173.0 mm (6.8 in)
2006	193.3 mm (7.6 in)
2007	104.4 mm (4.1 in)
2008	121.6 mm (4.8 in)
2009	84.9 mm (3.3 in)
2010	136.9 mm (5.4 in)
2011	108.5 mm (4.3 in)
2012	40.7 mm (1.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Joaquin, 1978 to 2012. The record is 182 days in 1982, marked on the chart; the median year is 110 days.

Longest dry spell (CDD) at San Joaquin by year
Year	Longest dry spell (CDD)
1978	59 days
1979	104 days
1980	89 days
1981	102 days
1982	182 days
1983	88 days
1984	139 days
1985	82 days
1986	117 days
1987	61 days
1988	120 days
1989	40 days
1990	84 days
1991	121 days
1992	98 days
1993	72 days
1994	168 days
1995	147 days
1996	70 days
1997	84 days
1998	147 days
1999	150 days
2000	151 days
2001	98 days
2002	148 days
2003	100 days
2004	93 days
2005	129 days
2006	176 days
2007	132 days
2008	36 days
2009	138 days
2010	117 days
2011	182 days
2012	110 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 Joaquin standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Joaquin 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).