San Bartolo Weather Records (MXN00019174)

Record envelope, standing records and threshold days for San Bartolo (MXN00019174), Mexico, with 30 years of record.

Key Facts for San Bartolo

San Bartolo (MXN00019174) is a weather station in Mexico at 25.53 latitude and -100.00 longitude, 326 m (1,069 ft) above sea level.
The station reports from 1982 to 2011, 30 years of record.
1,464 records set at San Bartolo still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 25.53 latitude, -100.00 longitude.
Elevation: 326 m (1,069 ft).
Period of record: 1982 to 2011, 30 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 San Bartolo. 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 Bartolo, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.6 C (96.1 F)	-6.1 C (21.0 F)	n/a	n/a
Feb	38.9 C (102.0 F)	-7.2 C (19.0 F)	n/a	n/a
Mar	45.0 C (113.0 F)	-5.0 C (23.0 F)	n/a	n/a
Apr	45.0 C (113.0 F)	-3.3 C (26.1 F)	n/a	n/a
May	46.7 C (116.1 F)	5.0 C (41.0 F)	n/a	n/a
Jun	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Jul	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Aug	42.8 C (109.0 F)	10.6 C (51.1 F)	n/a	n/a
Sep	41.7 C (107.1 F)	6.7 C (44.1 F)	n/a	n/a
Oct	40.0 C (104.0 F)	2.8 C (37.0 F)	n/a	n/a
Nov	40.0 C (104.0 F)	-3.3 C (26.1 F)	n/a	n/a
Dec	35.6 C (96.1 F)	-5.6 C (21.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Bartolo still stand. 1989 holds the most, with 97.

Standing records at San Bartolo by the year they were set
Year set	Standing records
1983	71
1984	35
1985	65
1986	21
1987	73
1988	48
1989	97
1990	94
1991	60
1992	55
1993	65
1994	32
1995	73
1996	77
1997	59
1998	55
1999	1
2000	56
2001	26
2002	61
2003	50
2004	11
2005	32
2008	38
2009	68
2010	58
2011	83

Wettest Day of Each Month

Aug: 257.6 mm (10.1 in)

The wettest day on record for each calendar month at San Bartolo. The most was 257.6 mm (10.1 in) on 24 August 1999.

Record daily precipitation for each month at San Bartolo
Month	Record daily precipitation (mm)	Date
Jan	66.3 mm (2.6 in)	21 January 1994
Feb	40.9 mm (1.6 in)	1 February 2001
Mar	45.7 mm (1.8 in)	14 March 1994
Apr	126.0 mm (5.0 in)	12 April 2010
May	119.9 mm (4.7 in)	27 May 2003
Jun	191.8 mm (7.6 in)	30 June 2010
Jul	217.9 mm (8.6 in)	19 July 2005
Aug	257.6 mm (10.1 in)	24 August 1999
Sep	224.3 mm (8.8 in)	19 September 2010
Oct	135.9 mm (5.4 in)	11 October 2003
Nov	48.3 mm (1.9 in)	3 November 1998
Dec	37.8 mm (1.5 in)	13 December 1991

Period of Record Coverage

1983 to 2011

27 years of record at San Bartolo, 1983 to 2011. 14 years have data for under 90 percent of days and are left out of rankings: 1983, 1984, 1985, 1986, 1987, 1988, 1994, 1998 and others.

Days with data per year at San Bartolo
Year	Days with data	Share of year	Complete
1983	309	85%	No
1984	182	50%	No
1985	265	73%	No
1986	120	33%	No
1987	276	76%	No
1988	321	88%	No
1989	351	96%	Yes
1990	357	98%	Yes
1991	359	98%	Yes
1992	361	99%	Yes
1993	365	100%	Yes
1994	288	79%	No
1995	363	99%	Yes
1996	363	99%	Yes
1997	356	98%	Yes
1998	311	85%	No
1999	31	8%	No
2000	305	83%	No
2001	365	100%	Yes
2002	361	99%	Yes
2003	330	90%	Yes
2004	264	72%	No
2005	163	45%	No
2008	297	81%	No
2009	272	75%	No
2010	365	100%	Yes
2011	359	98%	Yes

Latest Records

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

Climate Trend

12 complete years, 1989 to 2011

One stripe for each of 12 complete years at San Bartolo, 1989 to 2011. Blue stripes are years cooler than the station's own mean of 21.8 C (71.2 F); red stripes are warmer. The coolest year was 2010, at 21.1 C (70.0 F), and the warmest was 2011, at 23.3 C (73.9 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at San Bartolo as warming stripes, 1989 to 2011
Year	Annual mean temperature	Difference from the station mean
1989	21.3 C	-0.52 C
1990	23.3 C	+1.47 C
1991	21.7 C	-0.12 C
1992	21.2 C	-0.61 C
1993	21.3 C	-0.49 C
1995	21.6 C	-0.20 C
1996	22.2 C	+0.42 C
1997	21.4 C	-0.44 C
2001	21.3 C	-0.48 C
2002	22.0 C	+0.19 C
2010	21.1 C	-0.69 C
2011	23.3 C	+1.51 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

1982 to 2011

Yearly extremes at San Bartolo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.7 C (116.1 F)	1998	40.6 C (105.1 F)	27
Coldest night (TNn)	-7.2 C (19.0 F)	2011	-3.3 C (26.1 F)	27
Wettest day (Rx1day)	257.6 mm (10.1 in)	1999	80.2 mm (3.2 in)	28
Wettest five days (Rx5day)	360.2 mm (14.2 in)	2010	146.7 mm (5.8 in)	28
Longest dry spell (CDD)	119 days	2011	40 days	28

Hottest day (TXx)

The hottest day of the year at San Bartolo, 1982 to 2011. The record is 46.7 C (116.1 F) in 1998, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at San Bartolo by year
Year	Hottest day (TXx)
1982	n/a
1983	43.9 C (111.0 F)
1984	38.9 C (102.0 F)
1985	40.0 C (104.0 F)
1986	40.0 C (104.0 F)
1987	40.0 C (104.0 F)
1988	40.0 C (104.0 F)
1989	41.7 C (107.1 F)
1990	41.7 C (107.1 F)
1991	45.0 C (113.0 F)
1992	41.7 C (107.1 F)
1993	40.0 C (104.0 F)
1994	41.7 C (107.1 F)
1995	40.6 C (105.1 F)
1996	41.7 C (107.1 F)
1997	40.6 C (105.1 F)
1998	46.7 C (116.1 F)
1999	40.6 C (105.1 F)
2000	41.7 C (107.1 F)
2001	40.6 C (105.1 F)
2002	41.7 C (107.1 F)
2003	40.6 C (105.1 F)
2004	38.9 C (102.0 F)
2005	40.0 C (104.0 F)
2008	40.0 C (104.0 F)
2009	41.7 C (107.1 F)
2010	40.0 C (104.0 F)
2011	45.0 C (113.0 F)

Coldest night (TNn)

The coldest night of the year at San Bartolo, 1982 to 2011. The record is -7.2 C (19.0 F) in 2011, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at San Bartolo by year
Year	Coldest night (TNn)
1982	n/a
1983	0.0 C (32.0 F)
1984	-2.2 C (28.0 F)
1985	-4.4 C (24.1 F)
1986	-5.6 C (21.9 F)
1987	-4.4 C (24.1 F)
1988	-4.4 C (24.1 F)
1989	-5.6 C (21.9 F)
1990	-2.2 C (28.0 F)
1991	-2.2 C (28.0 F)
1992	-3.3 C (26.1 F)
1993	-4.4 C (24.1 F)
1994	-2.2 C (28.0 F)
1995	0.0 C (32.0 F)
1996	-6.1 C (21.0 F)
1997	-4.4 C (24.1 F)
1998	-1.1 C (30.0 F)
1999	17.8 C (64.0 F)
2000	-3.3 C (26.1 F)
2001	-2.2 C (28.0 F)
2002	-5.0 C (23.0 F)
2003	-4.4 C (24.1 F)
2004	0.0 C (32.0 F)
2005	1.7 C (35.1 F)
2008	-2.2 C (28.0 F)
2009	0.6 C (33.1 F)
2010	-6.1 C (21.0 F)
2011	-7.2 C (19.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Bartolo, 1982 to 2011. The record is 257.6 mm (10.1 in) in 1999, marked on the chart; the median year is 80.2 mm (3.2 in).

Wettest day (Rx1day) at San Bartolo by year
Year	Wettest day (Rx1day)
1982	36.1 mm (1.4 in)
1983	86.9 mm (3.4 in)
1984	38.9 mm (1.5 in)
1985	48.0 mm (1.9 in)
1986	104.9 mm (4.1 in)
1987	104.9 mm (4.1 in)
1988	36.8 mm (1.4 in)
1989	51.3 mm (2.0 in)
1990	62.0 mm (2.4 in)
1991	117.9 mm (4.6 in)
1992	48.8 mm (1.9 in)
1993	65.3 mm (2.6 in)
1994	66.3 mm (2.6 in)
1995	62.5 mm (2.5 in)
1996	94.0 mm (3.7 in)
1997	94.2 mm (3.7 in)
1998	90.2 mm (3.6 in)
1999	257.6 mm (10.1 in)
2000	92.5 mm (3.6 in)
2001	78.5 mm (3.1 in)
2002	93.5 mm (3.7 in)
2003	135.9 mm (5.4 in)
2004	45.5 mm (1.8 in)
2005	217.9 mm (8.6 in)
2008	81.8 mm (3.2 in)
2009	51.8 mm (2.0 in)
2010	224.3 mm (8.8 in)
2011	61.0 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Bartolo, 1982 to 2011. The record is 360.2 mm (14.2 in) in 2010, marked on the chart; the median year is 146.7 mm (5.8 in).

Wettest five days (Rx5day) at San Bartolo by year
Year	Wettest five days (Rx5day)
1982	42.4 mm (1.7 in)
1983	164.4 mm (6.5 in)
1984	56.0 mm (2.2 in)
1985	92.7 mm (3.6 in)
1986	122.7 mm (4.8 in)
1987	266.0 mm (10.5 in)
1988	68.0 mm (2.7 in)
1989	80.3 mm (3.2 in)
1990	81.3 mm (3.2 in)
1991	151.5 mm (6.0 in)
1992	85.6 mm (3.4 in)
1993	171.5 mm (6.8 in)
1994	106.7 mm (4.2 in)
1995	151.7 mm (6.0 in)
1996	199.2 mm (7.8 in)
1997	100.7 mm (4.0 in)
1998	234.3 mm (9.2 in)
1999	257.6 mm (10.1 in)
2000	123.7 mm (4.9 in)
2001	141.8 mm (5.6 in)
2002	187.7 mm (7.4 in)
2003	243.6 mm (9.6 in)
2004	139.2 mm (5.5 in)
2005	271.4 mm (10.7 in)
2008	156.5 mm (6.2 in)
2009	100.3 mm (3.9 in)
2010	360.2 mm (14.2 in)
2011	152.5 mm (6.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Bartolo, 1982 to 2011. The record is 119 days in 2011, marked on the chart; the median year is 40 days.

Longest dry spell (CDD) at San Bartolo by year
Year	Longest dry spell (CDD)
1982	18 days
1983	40 days
1984	31 days
1985	25 days
1986	32 days
1987	25 days
1988	80 days
1989	44 days
1990	40 days
1991	30 days
1992	36 days
1993	62 days
1994	34 days
1995	35 days
1996	88 days
1997	39 days
1998	43 days
1999	17 days
2000	46 days
2001	46 days
2002	60 days
2003	27 days
2004	41 days
2005	38 days
2008	75 days
2009	60 days
2010	54 days
2011	119 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 Bartolo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Bartolo 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).