Pedro Montoya Weather Records (MXN00024054)

Record envelope, standing records and threshold days for Pedro Montoya (MXN00024054), Mexico, with 47 years of record.

Key Facts for Pedro Montoya

Pedro Montoya (MXN00024054) is a weather station in Mexico at 21.65 latitude and -99.82 longitude, 920 m (3,018 ft) above sea level.
The station reports from 1965 to 2011, 47 years of record.
1,464 records set at Pedro Montoya still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Pedro Montoya tied a daily record low maximum temperature of 26.7 C (80.1 F) on 31 July 2011.

About the Station

Location: Mexico, 21.65 latitude, -99.82 longitude.
Elevation: 920 m (3,018 ft).
Period of record: 1965 to 2011, 47 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 Pedro Montoya. 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 Pedro Montoya, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	36.7 C (98.1 F)	-3.3 C (26.1 F)	n/a	n/a
Feb	40.0 C (104.0 F)	-3.3 C (26.1 F)	n/a	n/a
Mar	42.8 C (109.0 F)	0.0 C (32.0 F)	n/a	n/a
Apr	45.0 C (113.0 F)	3.9 C (39.0 F)	n/a	n/a
May	46.7 C (116.1 F)	10.0 C (50.0 F)	n/a	n/a
Jun	43.9 C (111.0 F)	10.6 C (51.1 F)	n/a	n/a
Jul	42.8 C (109.0 F)	11.7 C (53.1 F)	n/a	n/a
Aug	40.0 C (104.0 F)	10.6 C (51.1 F)	n/a	n/a
Sep	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Oct	37.8 C (100.0 F)	3.9 C (39.0 F)	n/a	n/a
Nov	38.9 C (102.0 F)	-1.1 C (30.0 F)	n/a	n/a
Dec	35.6 C (96.1 F)	-3.3 C (26.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Pedro Montoya still stand. 1998 holds the most, with 121.

Standing records at Pedro Montoya by the year they were set
Year set	Standing records
1965	4
1966	29
1967	44
1968	33
1969	51
1970	65
1971	48
1972	39
1973	37
1974	36
1975	46
1976	41
1977	27
1978	19
1979	39
1980	21
1981	30
1982	18
1983	41
1984	27
1987	26
1988	37
1989	29
1990	25
1991	35
1992	26
1993	32
1994	24
1995	27
1996	25
1997	38
1998	121
2000	44
2001	40
2002	36
2003	35
2004	23
2005	13
2006	21
2007	17
2008	28
2009	16
2010	29
2011	22

All-Time Record Progression

2 new records

2 all-time records were set at Pedro Montoya between 2 May 2002 and 22 August 2007. Each dot is a new record.

When Pedro Montoya set new all-time records
Date	Kind	Detail
2002-05-02	Record high maximum temperature	Record high maximum temperature 46.7 C (116.1 F)
2007-08-22	Record daily precipitation	Record daily precipitation 165.4 mm (6.5 in)

Wettest Day of Each Month

Aug: 165.4 mm (6.5 in)

The wettest day on record for each calendar month at Pedro Montoya. The most was 165.4 mm (6.5 in) on 22 August 2007.

Record daily precipitation for each month at Pedro Montoya
Month	Record daily precipitation (mm)	Date
Jan	61.0 mm (2.4 in)	11 January 1992
Feb	31.8 mm (1.3 in)	1 February 1992
Mar	22.4 mm (0.9 in)	27 March 1992
Apr	79.8 mm (3.1 in)	29 April 1981
May	41.9 mm (1.6 in)	2 May 1973
Jun	95.0 mm (3.7 in)	25 June 1966
Jul	132.8 mm (5.2 in)	2 July 1991
Aug	165.4 mm (6.5 in)	22 August 2007
Sep	140.0 mm (5.5 in)	21 September 1993
Oct	82.8 mm (3.3 in)	7 October 1991
Nov	50.8 mm (2.0 in)	12 November 1967
Dec	31.0 mm (1.2 in)	4 December 1981

Period of Record Coverage

1965 to 2011

44 years of record at Pedro Montoya, 1965 to 2011. 5 years have data for under 90 percent of days and are left out of rankings: 1965, 1987, 1988, 1992, 2011.

Days with data per year at Pedro Montoya
Year	Days with data	Share of year	Complete
1965	15	4%	No
1966	364	100%	Yes
1967	362	99%	Yes
1968	365	100%	Yes
1969	359	98%	Yes
1970	363	99%	Yes
1971	365	100%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	364	100%	Yes
1975	364	100%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	364	100%	Yes
1979	359	98%	Yes
1980	358	98%	Yes
1981	360	99%	Yes
1982	363	99%	Yes
1983	364	100%	Yes
1984	334	91%	Yes
1987	288	79%	No
1988	243	66%	No
1989	361	99%	Yes
1990	362	99%	Yes
1991	364	100%	Yes
1992	305	83%	No
1993	364	100%	Yes
1994	361	99%	Yes
1995	364	100%	Yes
1996	335	92%	Yes
1997	364	100%	Yes
1998	334	92%	Yes
2000	360	98%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	355	97%	Yes
2004	354	97%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	332	91%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	335	92%	Yes
2011	211	58%	No

Latest Records

Latest records at Pedro Montoya
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 2011	Pedro Montoya, MX	daily low max (Tie)	26.7 C (80.1 F)	tie	36 years	3 of 100 (Routine)
30 July 2011	Pedro Montoya, MX	daily low max	27.8 C (82.0 F)	1.1 C (2.0 F)	38 years	18 of 100 (Routine)
21 July 2011	Pedro Montoya, MX	daily rain	54.9 mm (2.2 in)	21.6 mm (0.9 in)	18 years	21 of 100 (Routine)
17 July 2011	Pedro Montoya, MX	daily rain	82.8 mm (3.3 in)	69.8 mm (2.7 in)	14 years	48 of 100 (Notable)
17 July 2011	Pedro Montoya, MX	daily low max	21.7 C (71.1 F)	3.9 C (7.0 F)	40 years	26 of 100 (Routine)
13 July 2011	Pedro Montoya, MX	daily rain	18.8 mm (0.7 in)	3.1 mm (0.12 in)	34 years	15 of 100 (Routine)
4 July 2011	Pedro Montoya, MX	daily low min (Tie)	15.6 C (60.1 F)	tie	36 years	3 of 100 (Routine)
1 July 2011	Pedro Montoya, MX	daily low max	21.7 C (71.1 F)	2.2 C (4.0 F)	10 years	13 of 100 (Routine)
1 July 2011	Pedro Montoya, MX	daily rain	70.9 mm (2.8 in)	3.1 mm (0.12 in)	20 years	11 of 100 (Routine)
30 June 2011	Pedro Montoya, MX	daily rain	77.0 mm (3.0 in)	57.2 mm (2.3 in)	1 year	44 of 100 (Notable)
8 June 2011	Pedro Montoya, MX	daily low min (Tie)	15.6 C (60.1 F)	tie	33 years	3 of 100 (Routine)
7 June 2011	Pedro Montoya, MX	daily low min	15.6 C (60.1 F)	1.1 C (2.0 F)	33 years	20 of 100 (Routine)
4 June 2011	Pedro Montoya, MX	daily low min (Tie)	15.6 C (60.1 F)	tie	34 years	3 of 100 (Routine)
3 June 2011	Pedro Montoya, MX	daily low min (Tie)	15.6 C (60.1 F)	tie	33 years	3 of 100 (Routine)
28 May 2011	Pedro Montoya, MX	daily high max	42.8 C (109.0 F)	1.1 C (2.0 F)	20 years	12 of 100 (Routine)
25 May 2011	Pedro Montoya, MX	daily high max (Tie)	42.8 C (109.0 F)	tie	37 years	3 of 100 (Routine)
24 May 2011	Pedro Montoya, MX	daily high max	42.8 C (109.0 F)	1.1 C (2.0 F)	37 years	17 of 100 (Routine)
24 May 2011	Pedro Montoya, MX	daily high min (Tie)	21.7 C (71.1 F)	tie	40 years	4 of 100 (Routine)
23 May 2011	Pedro Montoya, MX	daily high max	41.7 C (107.1 F)	1.1 C (2.0 F)	38 years	17 of 100 (Routine)
20 May 2011	Pedro Montoya, MX	daily high max	43.9 C (111.0 F)	1.1 C (2.0 F)	28 years	14 of 100 (Routine)

Climate Trend

34 complete years, 1966 to 2009

One stripe for each of 34 complete years at Pedro Montoya, 1966 to 2009. Blue stripes are years cooler than the station's own mean of 22.3 C (72.1 F); red stripes are warmer. The coolest year was 1976, at 20.6 C (69.1 F), and the warmest was 2001, at 24.2 C (75.5 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Pedro Montoya as warming stripes, 1966 to 2009
Year	Annual mean temperature	Difference from the station mean
1966	21.3 C	-0.97 C
1967	22.0 C	-0.35 C
1968	22.1 C	-0.16 C
1969	23.1 C	+0.76 C
1970	22.1 C	-0.20 C
1971	22.3 C	-0.01 C
1972	23.0 C	+0.70 C
1973	22.3 C	+0.02 C
1974	22.1 C	-0.21 C
1975	21.9 C	-0.39 C
1976	20.6 C	-1.68 C
1977	21.6 C	-0.73 C
1978	21.5 C	-0.76 C
1979	20.8 C	-1.53 C
1980	21.3 C	-0.96 C
1981	21.3 C	-1.02 C
1982	22.3 C	+0.03 C
1983	22.3 C	-0.04 C
1989	22.4 C	+0.10 C
1990	22.2 C	-0.14 C
1991	22.3 C	+0.04 C
1993	22.4 C	+0.14 C
1994	23.3 C	+1.04 C
1995	23.1 C	+0.80 C
1997	22.8 C	+0.54 C
2000	22.0 C	-0.31 C
2001	24.2 C	+1.87 C
2002	23.7 C	+1.37 C
2003	23.5 C	+1.23 C
2004	22.5 C	+0.23 C
2005	22.5 C	+0.16 C
2006	22.6 C	+0.31 C
2008	21.7 C	-0.56 C
2009	23.0 C	+0.68 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1966 to 2009. In Fahrenheit: 0.5 F (0.2 to 0.8) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Pedro Montoya
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.1 to 0.5) per decade	0.5 F (0.2 to 0.8) per decade	1966 to 2009	34	Rise
Mean daily maximum	0.5 C (0.2 to 0.7) per decade	0.8 F (0.4 to 1.3) per decade	1966 to 2009	34	Rise
Mean daily minimum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.2 to 0.4) per decade	1966 to 2009	34	Not clearly different from zero

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

1965 to 2011

Yearly extremes at Pedro Montoya: 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)	2002	42.8 C (109.0 F)	44
Coldest night (TNn)	-3.3 C (26.1 F)	1975	0.3 C (32.5 F)	44
Wettest day (Rx1day)	165.4 mm (6.5 in)	2007	60.5 mm (2.4 in)	44
Wettest five days (Rx5day)	243.6 mm (9.6 in)	1993	124.3 mm (4.9 in)	44
Longest dry spell (CDD)	177 days	1998	64 days	44

Hottest day (TXx)

The hottest day of the year at Pedro Montoya, 1965 to 2011. The record is 46.7 C (116.1 F) in 2002, marked on the chart; the median year is 42.8 C (109.0 F).

Hottest day (TXx) at Pedro Montoya by year
Year	Hottest day (TXx)
1965	31.7 C (89.1 F)
1966	38.9 C (102.0 F)
1967	40.6 C (105.1 F)
1968	40.0 C (104.0 F)
1969	43.9 C (111.0 F)
1970	43.9 C (111.0 F)
1971	45.0 C (113.0 F)
1972	42.8 C (109.0 F)
1973	45.6 C (114.1 F)
1974	41.7 C (107.1 F)
1975	41.7 C (107.1 F)
1976	40.0 C (104.0 F)
1977	40.6 C (105.1 F)
1978	42.8 C (109.0 F)
1979	40.0 C (104.0 F)
1980	40.6 C (105.1 F)
1981	38.9 C (102.0 F)
1982	40.6 C (105.1 F)
1983	42.8 C (109.0 F)
1984	41.7 C (107.1 F)
1987	40.0 C (104.0 F)
1988	41.7 C (107.1 F)
1989	42.8 C (109.0 F)
1990	42.8 C (109.0 F)
1991	42.8 C (109.0 F)
1992	40.0 C (104.0 F)
1993	43.9 C (111.0 F)
1994	40.0 C (104.0 F)
1995	43.9 C (111.0 F)
1996	40.6 C (105.1 F)
1997	40.6 C (105.1 F)
1998	42.8 C (109.0 F)
2000	38.9 C (102.0 F)
2001	43.9 C (111.0 F)
2002	46.7 C (116.1 F)
2003	45.0 C (113.0 F)
2004	43.9 C (111.0 F)
2005	43.9 C (111.0 F)
2006	42.8 C (109.0 F)
2007	42.8 C (109.0 F)
2008	43.9 C (111.0 F)
2009	42.8 C (109.0 F)
2010	41.7 C (107.1 F)
2011	45.0 C (113.0 F)

Coldest night (TNn)

The coldest night of the year at Pedro Montoya, 1965 to 2011. The record is -3.3 C (26.1 F) in 1975, marked on the chart; the median year is 0.3 C (32.5 F).

Coldest night (TNn) at Pedro Montoya by year
Year	Coldest night (TNn)
1965	5.0 C (41.0 F)
1966	0.0 C (32.0 F)
1967	0.6 C (33.1 F)
1968	0.6 C (33.1 F)
1969	0.0 C (32.0 F)
1970	-1.1 C (30.0 F)
1971	0.0 C (32.0 F)
1972	2.8 C (37.0 F)
1973	-1.1 C (30.0 F)
1974	0.0 C (32.0 F)
1975	-3.3 C (26.1 F)
1976	-3.3 C (26.1 F)
1977	-2.2 C (28.0 F)
1978	1.7 C (35.1 F)
1979	0.0 C (32.0 F)
1980	0.6 C (33.1 F)
1981	1.7 C (35.1 F)
1982	0.0 C (32.0 F)
1983	-3.3 C (26.1 F)
1984	1.7 C (35.1 F)
1987	0.0 C (32.0 F)
1988	0.0 C (32.0 F)
1989	-0.6 C (30.9 F)
1990	0.0 C (32.0 F)
1991	5.0 C (41.0 F)
1992	5.0 C (41.0 F)
1993	0.0 C (32.0 F)
1994	1.7 C (35.1 F)
1995	5.0 C (41.0 F)
1996	1.7 C (35.1 F)
1997	0.0 C (32.0 F)
1998	1.7 C (35.1 F)
2000	0.6 C (33.1 F)
2001	0.6 C (33.1 F)
2002	2.8 C (37.0 F)
2003	-2.2 C (28.0 F)
2004	-1.7 C (28.9 F)
2005	3.9 C (39.0 F)
2006	-1.1 C (30.0 F)
2007	1.7 C (35.1 F)
2008	1.7 C (35.1 F)
2009	2.8 C (37.0 F)
2010	0.0 C (32.0 F)
2011	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at Pedro Montoya, 1965 to 2011. The record is 165.4 mm (6.5 in) in 2007, marked on the chart; the median year is 60.5 mm (2.4 in).

Wettest day (Rx1day) at Pedro Montoya by year
Year	Wettest day (Rx1day)
1965	0.0 mm (0.00 in)
1966	95.0 mm (3.7 in)
1967	69.9 mm (2.8 in)
1968	52.8 mm (2.1 in)
1969	79.8 mm (3.1 in)
1970	52.8 mm (2.1 in)
1971	45.0 mm (1.8 in)
1972	77.0 mm (3.0 in)
1973	59.9 mm (2.4 in)
1974	93.0 mm (3.7 in)
1975	84.8 mm (3.3 in)
1976	62.0 mm (2.4 in)
1977	49.8 mm (2.0 in)
1978	113.8 mm (4.5 in)
1979	64.8 mm (2.6 in)
1980	45.0 mm (1.8 in)
1981	83.8 mm (3.3 in)
1982	53.1 mm (2.1 in)
1983	31.0 mm (1.2 in)
1984	41.4 mm (1.6 in)
1987	4.8 mm (0.19 in)
1988	16.8 mm (0.7 in)
1989	37.3 mm (1.5 in)
1990	81.0 mm (3.2 in)
1991	132.8 mm (5.2 in)
1992	61.0 mm (2.4 in)
1993	140.0 mm (5.5 in)
1994	45.5 mm (1.8 in)
1995	48.3 mm (1.9 in)
1996	69.9 mm (2.8 in)
1997	43.4 mm (1.7 in)
1998	41.1 mm (1.6 in)
2000	33.8 mm (1.3 in)
2001	124.7 mm (4.9 in)
2002	54.9 mm (2.2 in)
2003	54.9 mm (2.2 in)
2004	37.3 mm (1.5 in)
2005	68.8 mm (2.7 in)
2006	41.7 mm (1.6 in)
2007	165.4 mm (6.5 in)
2008	62.0 mm (2.4 in)
2009	62.0 mm (2.4 in)
2010	95.0 mm (3.7 in)
2011	82.8 mm (3.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Pedro Montoya, 1965 to 2011. The record is 243.6 mm (9.6 in) in 1993, marked on the chart; the median year is 124.3 mm (4.9 in).

Wettest five days (Rx5day) at Pedro Montoya by year
Year	Wettest five days (Rx5day)
1965	0.0 mm (0.00 in)
1966	172.4 mm (6.8 in)
1967	183.4 mm (7.2 in)
1968	151.3 mm (6.0 in)
1969	168.6 mm (6.6 in)
1970	112.6 mm (4.4 in)
1971	106.8 mm (4.2 in)
1972	129.4 mm (5.1 in)
1973	133.5 mm (5.3 in)
1974	191.9 mm (7.6 in)
1975	228.1 mm (9.0 in)
1976	114.3 mm (4.5 in)
1977	77.2 mm (3.0 in)
1978	215.1 mm (8.5 in)
1979	103.4 mm (4.1 in)
1980	130.6 mm (5.1 in)
1981	203.9 mm (8.0 in)
1982	98.6 mm (3.9 in)
1983	90.9 mm (3.6 in)
1984	125.5 mm (4.9 in)
1987	10.2 mm (0.4 in)
1988	22.6 mm (0.9 in)
1989	38.6 mm (1.5 in)
1990	123.1 mm (4.8 in)
1991	238.3 mm (9.4 in)
1992	84.4 mm (3.3 in)
1993	243.6 mm (9.6 in)
1994	62.3 mm (2.5 in)
1995	141.8 mm (5.6 in)
1996	131.7 mm (5.2 in)
1997	67.0 mm (2.6 in)
1998	85.3 mm (3.4 in)
2000	60.2 mm (2.4 in)
2001	143.3 mm (5.6 in)
2002	100.1 mm (3.9 in)
2003	84.9 mm (3.3 in)
2004	58.1 mm (2.3 in)
2005	131.5 mm (5.2 in)
2006	46.8 mm (1.8 in)
2007	186.0 mm (7.3 in)
2008	143.4 mm (5.6 in)
2009	117.4 mm (4.6 in)
2010	210.8 mm (8.3 in)
2011	218.8 mm (8.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Pedro Montoya, 1965 to 2011. The record is 177 days in 1998, marked on the chart; the median year is 64 days.

Longest dry spell (CDD) at Pedro Montoya by year
Year	Longest dry spell (CDD)
1965	16 days
1966	42 days
1967	67 days
1968	82 days
1969	114 days
1970	99 days
1971	83 days
1972	75 days
1973	47 days
1974	38 days
1975	108 days
1976	65 days
1977	57 days
1978	42 days
1979	48 days
1980	63 days
1981	40 days
1982	48 days
1983	89 days
1984	95 days
1987	136 days
1988	88 days
1989	74 days
1990	84 days
1991	89 days
1992	48 days
1993	77 days
1994	49 days
1995	141 days
1996	46 days
1997	51 days
1998	177 days
2000	110 days
2001	52 days
2002	30 days
2003	71 days
2004	36 days
2005	50 days
2006	47 days
2007	29 days
2008	63 days
2009	87 days
2010	33 days
2011	72 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.

Rainfall Return Levels

39 years, 1966 to 2010

A day with at least 60.8 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 197.2 mm (7.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Pedro Montoya: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	60.8 mm (2.4 in)
5 years	87.6 mm (3.4 in)
10 years	108.7 mm (4.3 in)
25 years	139.9 mm (5.5 in)
50 years	166.8 mm (6.6 in)	Longer than the 39 years of record
100 years	197.2 mm (7.8 in)	Longer than the 39 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, 39 years of values from 1966 to 2010.

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: 165.4 mm (6.5 in) in 2007; 140.0 mm (5.5 in) in 1993; 132.8 mm (5.2 in) in 1991.

Download the Data

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