Agua Blanca Weather Records (MXN00013095)

Record envelope, standing records and threshold days for Agua Blanca (MXN00013095), Mexico, with 39 years of record.

Key Facts for Agua Blanca

Agua Blanca (MXN00013095) is a weather station in Mexico at 20.33 latitude and -98.35 longitude, 2,200 m (7,217 ft) above sea level.
The station reports from 1974 to 2012, 39 years of record.
1,464 records set at Agua Blanca still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Agua Blanca tied a daily record precipitation of 1.3 mm (0.05 in) on 18 December 2012.

About the Station

Location: Mexico, 20.33 latitude, -98.35 longitude.
Elevation: 2,200 m (7,217 ft).
Period of record: 1974 to 2012, 39 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 Agua Blanca. 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 Agua Blanca, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	28.9 C (84.0 F)	-11.7 C (10.9 F)	n/a	n/a
Feb	32.8 C (91.0 F)	-9.4 C (15.1 F)	n/a	n/a
Mar	33.9 C (93.0 F)	-11.1 C (12.0 F)	n/a	n/a
Apr	38.9 C (102.0 F)	-4.4 C (24.1 F)	n/a	n/a
May	35.6 C (96.1 F)	0.0 C (32.0 F)	n/a	n/a
Jun	36.7 C (98.1 F)	0.0 C (32.0 F)	n/a	n/a
Jul	32.2 C (90.0 F)	0.6 C (33.1 F)	n/a	n/a
Aug	32.8 C (91.0 F)	0.0 C (32.0 F)	n/a	n/a
Sep	31.1 C (88.0 F)	0.0 C (32.0 F)	n/a	n/a
Oct	35.6 C (96.1 F)	-5.0 C (23.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-7.2 C (19.0 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-10.0 C (14.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Agua Blanca still stand. 1976 holds the most, with 120.

Standing records at Agua Blanca by the year they were set
Year set	Standing records
1974	11
1975	3
1976	120
1977	22
1978	112
1979	73
1980	45
1981	39
1982	39
1983	41
1984	48
1985	33
1986	46
1987	48
1988	65
1989	41
1990	1
1991	52
1992	28
1994	44
1995	14
1996	31
1997	19
1998	40
1999	109
2000	36
2001	95
2002	69
2003	40
2004	23
2005	15
2006	9
2007	8
2008	11
2009	8
2010	22
2011	2
2012	2

Wettest Day of Each Month

Sep: 141.0 mm (5.6 in)

The wettest day on record for each calendar month at Agua Blanca. The most was 141.0 mm (5.6 in) on 17 September 1981.

Record daily precipitation for each month at Agua Blanca
Month	Record daily precipitation (mm)	Date
Jan	21.8 mm (0.9 in)	18 January 1992
Feb	19.8 mm (0.8 in)	5 February 1990
Mar	25.9 mm (1.0 in)	16 March 1978
Apr	42.7 mm (1.7 in)	8 April 1980
May	56.4 mm (2.2 in)	28 May 1984
Jun	87.9 mm (3.5 in)	17 June 1981
Jul	64.8 mm (2.6 in)	26 July 1976
Aug	140.0 mm (5.5 in)	5 August 1979
Sep	141.0 mm (5.6 in)	17 September 1981
Oct	74.4 mm (2.9 in)	4 October 1985
Nov	54.9 mm (2.2 in)	1 November 1981
Dec	21.8 mm (0.9 in)	9 December 1981

Period of Record Coverage

1974 to 2012

38 years of record at Agua Blanca, 1974 to 2012. 8 years have data for under 90 percent of days and are left out of rankings: 1974, 1975, 1982, 1986, 1989, 1990, 1998, 2012.

Days with data per year at Agua Blanca
Year	Days with data	Share of year	Complete
1974	120	33%	No
1975	120	33%	No
1976	352	96%	Yes
1977	334	92%	Yes
1978	332	91%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	345	95%	Yes
1982	300	82%	No
1983	364	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	212	58%	No
1987	357	98%	Yes
1988	366	100%	Yes
1989	304	83%	No
1990	90	25%	No
1991	364	100%	Yes
1992	334	91%	Yes
1994	335	92%	Yes
1995	365	100%	Yes
1996	360	98%	Yes
1997	365	100%	Yes
1998	301	82%	No
1999	361	99%	Yes
2000	334	91%	Yes
2001	364	100%	Yes
2002	365	100%	Yes
2003	334	92%	Yes
2004	358	98%	Yes
2005	356	98%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	364	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	184	50%	No

Latest Records

Latest records at Agua Blanca
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 2012	Agua Blanca, MX	daily rain (Tie)	1.3 mm (0.05 in)	tie	17 years	2 of 100 (Routine)
22 November 2012	Agua Blanca, MX	daily low min	-3.3 C (26.1 F)	1.1 C (2.0 F)	7 years	8 of 100 (Routine)
19 November 2012	Agua Blanca, MX	daily low min	-5.0 C (23.0 F)	1.7 C (3.1 F)	13 years	11 of 100 (Routine)
13 September 2012	Agua Blanca, MX	daily rain	36.3 mm (1.4 in)	14.7 mm (0.6 in)	4 years	13 of 100 (Routine)
6 September 2012	Agua Blanca, MX	daily low min (Tie)	2.8 C (37.0 F)	tie	13 years	1 of 100 (Routine)
5 September 2012	Agua Blanca, MX	daily low min (Tie)	2.8 C (37.0 F)	tie	14 years	1 of 100 (Routine)
1 September 2012	Agua Blanca, MX	daily rain	24.9 mm (1.0 in)	5.1 mm (0.20 in)	23 years	12 of 100 (Routine)
28 August 2012	Agua Blanca, MX	daily low min (Tie)	2.8 C (37.0 F)	tie	3 years	0 of 100 (Routine)
23 August 2012	Agua Blanca, MX	daily rain	34.8 mm (1.4 in)	12.7 mm (0.5 in)	31 years	22 of 100 (Routine)
21 August 2012	Agua Blanca, MX	daily rain	45.5 mm (1.8 in)	4.6 mm (0.18 in)	36 years	16 of 100 (Routine)
20 August 2012	Agua Blanca, MX	daily rain	34.8 mm (1.4 in)	15.0 mm (0.6 in)	25 years	22 of 100 (Routine)
19 August 2012	Agua Blanca, MX	daily rain	29.0 mm (1.1 in)	0.8 mm (0.03 in)	31 years	12 of 100 (Routine)
6 August 2012	Agua Blanca, MX	daily rain	24.9 mm (1.0 in)	12.2 mm (0.5 in)	21 years	18 of 100 (Routine)
4 August 2012	Agua Blanca, MX	daily rain	25.4 mm (1.0 in)	9.7 mm (0.38 in)	33 years	19 of 100 (Routine)
3 August 2012	Agua Blanca, MX	daily rain	24.9 mm (1.0 in)	11.4 mm (0.4 in)	28 years	20 of 100 (Routine)
19 July 2012	Agua Blanca, MX	daily rain	34.8 mm (1.4 in)	5.8 mm (0.23 in)	36 years	19 of 100 (Routine)
30 November 2011	Agua Blanca, MX	daily low min (Tie)	-3.3 C (26.1 F)	tie	0 years	0 of 100 (Routine)
16 July 2011	Agua Blanca, MX	daily low min (Tie)	3.3 C (37.9 F)	tie	12 years	1 of 100 (Routine)
21 March 2011	Agua Blanca, MX	daily rain	3.3 mm (0.13 in)	2.5 mm (0.10 in)	21 years	14 of 100 (Routine)
16 February 2011	Agua Blanca, MX	daily low min	-6.1 C (21.0 F)	1.7 C (3.1 F)	25 years	16 of 100 (Routine)

Climate Trend

22 complete years, 1979 to 2011

One stripe for each of 22 complete years at Agua Blanca, 1979 to 2011. Blue stripes are years cooler than the station's own mean of 12.5 C (54.5 F); red stripes are warmer. The coolest year was 2008, at 11.1 C (52.1 F), and the warmest was 2001, at 14.3 C (57.7 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Agua Blanca as warming stripes, 1979 to 2011
Year	Annual mean temperature	Difference from the station mean
1979	12.4 C	-0.09 C
1980	12.5 C	+0.03 C
1983	12.3 C	-0.22 C
1984	11.7 C	-0.76 C
1985	11.8 C	-0.69 C
1987	12.6 C	+0.11 C
1988	12.5 C	+0.00 C
1991	12.3 C	-0.16 C
1995	13.5 C	+1.01 C
1996	13.1 C	+0.60 C
1997	11.9 C	-0.64 C
1999	12.9 C	+0.36 C
2001	14.3 C	+1.79 C
2002	14.0 C	+1.54 C
2004	13.3 C	+0.83 C
2005	12.8 C	+0.31 C
2006	12.0 C	-0.52 C
2007	12.1 C	-0.35 C
2008	11.1 C	-1.35 C
2009	11.8 C	-0.65 C
2010	11.6 C	-0.94 C
2011	12.2 C	-0.30 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

1974 to 2012

Yearly extremes at Agua Blanca: 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)	1998	30.0 C (86.0 F)	38
Coldest night (TNn)	-11.7 C (10.9 F)	1986	-5.8 C (21.5 F)	38
Wettest day (Rx1day)	141.0 mm (5.6 in)	1981	31.7 mm (1.2 in)	38
Wettest five days (Rx5day)	364.4 mm (14.3 in)	1981	81.6 mm (3.2 in)	38
Longest dry spell (CDD)	178 days	2003	56 days	38

Hottest day (TXx)

The hottest day of the year at Agua Blanca, 1974 to 2012. The record is 38.9 C (102.0 F) in 1998, marked on the chart; the median year is 30.0 C (86.0 F).

Hottest day (TXx) at Agua Blanca by year
Year	Hottest day (TXx)
1974	28.9 C (84.0 F)
1975	28.9 C (84.0 F)
1976	31.7 C (89.1 F)
1977	30.6 C (87.1 F)
1978	32.8 C (91.0 F)
1979	30.0 C (86.0 F)
1980	30.0 C (86.0 F)
1981	27.8 C (82.0 F)
1982	32.8 C (91.0 F)
1983	33.9 C (93.0 F)
1984	30.6 C (87.1 F)
1985	27.8 C (82.0 F)
1986	30.0 C (86.0 F)
1987	30.0 C (86.0 F)
1988	27.8 C (82.0 F)
1989	35.6 C (96.1 F)
1990	27.2 C (81.0 F)
1991	33.9 C (93.0 F)
1992	30.0 C (86.0 F)
1994	27.8 C (82.0 F)
1995	27.8 C (82.0 F)
1996	27.8 C (82.0 F)
1997	30.0 C (86.0 F)
1998	38.9 C (102.0 F)
1999	36.7 C (98.1 F)
2000	35.0 C (95.0 F)
2001	35.6 C (96.1 F)
2002	33.9 C (93.0 F)
2003	33.3 C (91.9 F)
2004	30.6 C (87.1 F)
2005	34.4 C (93.9 F)
2006	27.8 C (82.0 F)
2007	27.8 C (82.0 F)
2008	28.9 C (84.0 F)
2009	26.1 C (79.0 F)
2010	29.4 C (84.9 F)
2011	30.0 C (86.0 F)
2012	22.8 C (73.0 F)

Coldest night (TNn)

The coldest night of the year at Agua Blanca, 1974 to 2012. The record is -11.7 C (10.9 F) in 1986, marked on the chart; the median year is -5.8 C (21.5 F).

Coldest night (TNn) at Agua Blanca by year
Year	Coldest night (TNn)
1974	-5.6 C (21.9 F)
1975	-4.4 C (24.1 F)
1976	-4.4 C (24.1 F)
1977	-3.3 C (26.1 F)
1978	-2.2 C (28.0 F)
1979	-7.2 C (19.0 F)
1980	-4.4 C (24.1 F)
1981	-3.3 C (26.1 F)
1982	-7.8 C (18.0 F)
1983	-8.3 C (17.1 F)
1984	-8.9 C (16.0 F)
1985	-8.3 C (17.1 F)
1986	-11.7 C (10.9 F)
1987	-8.3 C (17.1 F)
1988	-8.3 C (17.1 F)
1989	-11.1 C (12.0 F)
1990	-5.6 C (21.9 F)
1991	-7.2 C (19.0 F)
1992	-2.2 C (28.0 F)
1994	-2.2 C (28.0 F)
1995	-5.0 C (23.0 F)
1996	-3.3 C (26.1 F)
1997	-4.4 C (24.1 F)
1998	-5.0 C (23.0 F)
1999	-10.0 C (14.0 F)
2000	-2.2 C (28.0 F)
2001	-5.0 C (23.0 F)
2002	-4.4 C (24.1 F)
2003	-4.4 C (24.1 F)
2004	-9.4 C (15.1 F)
2005	-7.2 C (19.0 F)
2006	-7.2 C (19.0 F)
2007	-6.1 C (21.0 F)
2008	-8.3 C (17.1 F)
2009	-7.2 C (19.0 F)
2010	-6.7 C (19.9 F)
2011	-6.1 C (21.0 F)
2012	-5.0 C (23.0 F)

Wettest day (Rx1day)

The wettest day of the year at Agua Blanca, 1974 to 2012. The record is 141.0 mm (5.6 in) in 1981, marked on the chart; the median year is 31.7 mm (1.2 in).

Wettest day (Rx1day) at Agua Blanca by year
Year	Wettest day (Rx1day)
1974	29.5 mm (1.2 in)
1975	19.8 mm (0.8 in)
1976	64.8 mm (2.6 in)
1977	24.9 mm (1.0 in)
1978	65.3 mm (2.6 in)
1979	140.0 mm (5.5 in)
1980	60.7 mm (2.4 in)
1981	141.0 mm (5.6 in)
1982	79.8 mm (3.1 in)
1983	47.8 mm (1.9 in)
1984	74.9 mm (2.9 in)
1985	74.4 mm (2.9 in)
1986	45.2 mm (1.8 in)
1987	51.8 mm (2.0 in)
1988	69.9 mm (2.8 in)
1989	39.9 mm (1.6 in)
1990	19.8 mm (0.8 in)
1991	19.3 mm (0.8 in)
1992	26.9 mm (1.1 in)
1994	29.5 mm (1.2 in)
1995	20.8 mm (0.8 in)
1996	33.3 mm (1.3 in)
1997	19.8 mm (0.8 in)
1998	30.0 mm (1.2 in)
1999	30.0 mm (1.2 in)
2000	6.9 mm (0.27 in)
2001	19.8 mm (0.8 in)
2002	15.0 mm (0.6 in)
2003	5.8 mm (0.23 in)
2004	9.9 mm (0.39 in)
2005	27.9 mm (1.1 in)
2006	15.0 mm (0.6 in)
2007	69.9 mm (2.8 in)
2008	40.9 mm (1.6 in)
2009	45.0 mm (1.8 in)
2010	45.5 mm (1.8 in)
2011	8.9 mm (0.35 in)
2012	45.5 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Agua Blanca, 1974 to 2012. The record is 364.4 mm (14.3 in) in 1981, marked on the chart; the median year is 81.6 mm (3.2 in).

Wettest five days (Rx5day) at Agua Blanca by year
Year	Wettest five days (Rx5day)
1974	35.6 mm (1.4 in)
1975	49.8 mm (2.0 in)
1976	142.6 mm (5.6 in)
1977	39.2 mm (1.5 in)
1978	83.7 mm (3.3 in)
1979	266.5 mm (10.5 in)
1980	165.0 mm (6.5 in)
1981	364.4 mm (14.3 in)
1982	169.4 mm (6.7 in)
1983	105.2 mm (4.1 in)
1984	226.1 mm (8.9 in)
1985	108.2 mm (4.3 in)
1986	82.8 mm (3.3 in)
1987	80.3 mm (3.2 in)
1988	175.1 mm (6.9 in)
1989	159.2 mm (6.3 in)
1990	24.7 mm (1.0 in)
1991	46.7 mm (1.8 in)
1992	51.8 mm (2.0 in)
1994	69.7 mm (2.7 in)
1995	65.7 mm (2.6 in)
1996	83.5 mm (3.3 in)
1997	49.3 mm (1.9 in)
1998	74.4 mm (2.9 in)
1999	121.7 mm (4.8 in)
2000	15.5 mm (0.6 in)
2001	42.7 mm (1.7 in)
2002	23.6 mm (0.9 in)
2003	21.6 mm (0.9 in)
2004	28.1 mm (1.1 in)
2005	62.7 mm (2.5 in)
2006	22.9 mm (0.9 in)
2007	101.7 mm (4.0 in)
2008	101.6 mm (4.0 in)
2009	124.8 mm (4.9 in)
2010	86.2 mm (3.4 in)
2011	34.9 mm (1.4 in)
2012	187.0 mm (7.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Agua Blanca, 1974 to 2012. The record is 178 days in 2003, marked on the chart; the median year is 56 days.

Longest dry spell (CDD) at Agua Blanca by year
Year	Longest dry spell (CDD)
1974	25 days
1975	63 days
1976	40 days
1977	92 days
1978	23 days
1979	30 days
1980	24 days
1981	19 days
1982	35 days
1983	56 days
1984	53 days
1985	26 days
1986	60 days
1987	55 days
1988	58 days
1989	37 days
1990	11 days
1991	50 days
1992	29 days
1994	32 days
1995	16 days
1996	35 days
1997	96 days
1998	153 days
1999	68 days
2000	130 days
2001	87 days
2002	112 days
2003	178 days
2004	60 days
2005	80 days
2006	61 days
2007	37 days
2008	99 days
2009	44 days
2010	64 days
2011	96 days
2012	57 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.

Frost Dates and Growing Season

21 years with a frost

Across 21 years with a frost, the median last spring frost at Agua Blanca falls on 22 March and the median first autumn frost on 27 October, which leaves a median of 215 days between them.

Frost dates and growing season at Agua Blanca
Measure	Median, all years	Earliest period	Recent period (1979 to 2011)	Recent against earliest	Fitted trend
Last spring frost	22 March	n/a	22 March	n/a	n/a
First autumn frost	27 October	n/a	27 October	n/a	n/a
Growing days	215 days	n/a	215 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

31 years, 1976 to 2011

A day with at least 34.5 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 175.5 mm (6.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Agua Blanca: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	34.5 mm (1.4 in)
5 years	62.6 mm (2.5 in)
10 years	84.5 mm (3.3 in)
25 years	116.8 mm (4.6 in)
50 years	144.4 mm (5.7 in)	Longer than the 31 years of record
100 years	175.5 mm (6.9 in)	Longer than the 31 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, 31 years of values from 1976 to 2011.

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: 141.0 mm (5.6 in) in 1981; 140.0 mm (5.5 in) in 1979; 74.9 mm (2.9 in) in 1984.

Download the Data

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