Izucar de Matamoros (Dge) Weather Records (MXN00021049)

Record envelope, standing records and threshold days for Izucar de Matamoros (Dge) (MXN00021049), Mexico, with 45 years of record.

Key Facts for Izucar de Matamoros (Dge)

Izucar de Matamoros (Dge) (MXN00021049) is a weather station in Mexico at 18.62 latitude and -98.47 longitude, 1,324 m (4,343 ft) above sea level.
The station reports from 1955 to 1999, 45 years of record.
1,464 records set at Izucar de Matamoros (Dge) still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Izucar de Matamoros (Dge) set a daily record low minimum temperature of 8.9 C (48.0 F) on 28 October 1999.

About the Station

Location: Mexico, 18.62 latitude, -98.47 longitude.
Elevation: 1,324 m (4,343 ft).
Period of record: 1955 to 1999, 45 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 Izucar de Matamoros (Dge). 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 Izucar de Matamoros (Dge), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.3 C (100.9 F)	-2.2 C (28.0 F)	n/a	n/a
Feb	40.0 C (104.0 F)	-3.3 C (26.1 F)	n/a	n/a
Mar	40.0 C (104.0 F)	3.3 C (37.9 F)	n/a	n/a
Apr	41.7 C (107.1 F)	3.9 C (39.0 F)	n/a	n/a
May	45.6 C (114.1 F)	8.9 C (48.0 F)	n/a	n/a
Jun	42.8 C (109.0 F)	5.6 C (42.1 F)	n/a	n/a
Jul	42.8 C (109.0 F)	8.3 C (46.9 F)	n/a	n/a
Aug	41.7 C (107.1 F)	8.9 C (48.0 F)	n/a	n/a
Sep	36.7 C (98.1 F)	6.7 C (44.1 F)	n/a	n/a
Oct	33.9 C (93.0 F)	5.0 C (41.0 F)	n/a	n/a
Nov	36.1 C (97.0 F)	0.6 C (33.1 F)	n/a	n/a
Dec	37.8 C (100.0 F)	-3.3 C (26.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Izucar de Matamoros (Dge) still stand. 1989 holds the most, with 194.

Standing records at Izucar de Matamoros (Dge) by the year they were set
Year set	Standing records
1955	37
1956	39
1957	10
1958	55
1959	16
1960	41
1961	17
1962	6
1963	17
1964	6
1965	6
1966	14
1967	9
1968	22
1969	4
1970	30
1971	10
1972	46
1973	41
1974	75
1975	16
1976	44
1977	20
1978	30
1979	23
1980	16
1981	26
1982	16
1983	44
1984	49
1985	7
1986	21
1987	33
1988	47
1989	194
1990	3
1991	28
1992	59
1993	57
1994	53
1995	63
1996	8
1997	33
1998	31
1999	42

All-Time Record Progression

10 new records

10 all-time records were set at Izucar de Matamoros (Dge) between 20 February 1989 and 9 August 1999. Each dot is a new record.

When Izucar de Matamoros (Dge) set new all-time records
Date	Kind	Detail
1989-02-20	Record high maximum temperature	Record high maximum temperature 40.0 C (104.0 F)
1989-04-04	Record high maximum temperature	Record high maximum temperature 40.6 C (105.1 F)
1989-05-19	Record high maximum temperature	Record high maximum temperature 42.8 C (109.0 F)
1992-06-16	Record high minimum temperature	Record high minimum temperature 21.7 C (71.1 F)
1993-06-07	Record high minimum temperature	Record high minimum temperature 22.2 C (72.0 F)
1995-05-19	Record high minimum temperature	Record high minimum temperature 22.8 C (73.0 F)
1998-05-16	Record high maximum temperature	Record high maximum temperature 43.9 C (111.0 F)
1998-05-21	Record high maximum temperature	Record high maximum temperature 45.6 C (114.1 F)
1999-08-08	Record daily precipitation	Record daily precipitation 167.9 mm (6.6 in)
1999-08-09	Record daily precipitation	Record daily precipitation 174.8 mm (6.9 in)

Wettest Day of Each Month

Aug: 174.8 mm (6.9 in)

The wettest day on record for each calendar month at Izucar de Matamoros (Dge). The most was 174.8 mm (6.9 in) on 9 August 1999.

Record daily precipitation for each month at Izucar de Matamoros (Dge)
Month	Record daily precipitation (mm)	Date
Jan	25.9 mm (1.0 in)	10 January 1967
Feb	19.8 mm (0.8 in)	6 February 1993
Mar	10.9 mm (0.4 in)	16 March 1978
Apr	34.3 mm (1.4 in)	2 April 1968
May	78.0 mm (3.1 in)	14 May 1992
Jun	89.2 mm (3.5 in)	28 June 1988
Jul	93.2 mm (3.7 in)	20 July 1970
Aug	174.8 mm (6.9 in)	9 August 1999
Sep	92.5 mm (3.6 in)	7 September 1988
Oct	58.4 mm (2.3 in)	5 October 1965
Nov	53.8 mm (2.1 in)	10 November 1997
Dec	20.3 mm (0.8 in)	3 December 1968

Period of Record Coverage

1955 to 1999

45 years of record at Izucar de Matamoros (Dge), 1955 to 1999. 15 years have data for under 90 percent of days and are left out of rankings: 1955, 1958, 1961, 1965, 1966, 1969, 1970, 1971 and others.

Days with data per year at Izucar de Matamoros (Dge)
Year	Days with data	Share of year	Complete
1955	270	74%	No
1956	366	100%	Yes
1957	365	100%	Yes
1958	323	88%	No
1959	362	99%	Yes
1960	366	100%	Yes
1961	212	58%	No
1962	337	92%	Yes
1963	334	92%	Yes
1964	365	100%	Yes
1965	214	59%	No
1966	306	84%	No
1967	363	99%	Yes
1968	366	100%	Yes
1969	150	41%	No
1970	302	83%	No
1971	273	75%	No
1972	366	100%	Yes
1973	365	100%	Yes
1974	334	92%	Yes
1975	334	92%	Yes
1976	365	100%	Yes
1977	357	98%	Yes
1978	364	100%	Yes
1979	364	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	334	92%	Yes
1983	354	97%	Yes
1984	364	99%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	364	100%	Yes
1988	348	95%	Yes
1989	326	89%	No
1990	122	33%	No
1991	139	38%	No
1992	350	96%	Yes
1993	364	100%	Yes
1994	332	91%	Yes
1995	211	58%	No
1996	61	17%	No
1997	364	100%	Yes
1998	295	81%	No
1999	267	73%	No

Latest Records

Latest records at Izucar de Matamoros (Dge)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 October 1999	Izucar de Matamoros (Dge), MX	daily low min	8.9 C (48.0 F)	0.5 C (0.9 F)	16 years	9 of 100 (Routine)
24 October 1999	Izucar de Matamoros (Dge), MX	daily low min	7.8 C (46.0 F)	0.5 C (0.9 F)	33 years	15 of 100 (Routine)
8 October 1999	Izucar de Matamoros (Dge), MX	daily rain	43.7 mm (1.7 in)	16.8 mm (0.7 in)	32 years	30 of 100 (Routine)
5 October 1999	Izucar de Matamoros (Dge), MX	daily low max	22.8 C (73.0 F)	3.9 C (7.0 F)	44 years	35 of 100 (Notable)
4 October 1999	Izucar de Matamoros (Dge), MX	daily low max	21.7 C (71.1 F)	3.3 C (5.9 F)	20 years	25 of 100 (Routine)
2 October 1999	Izucar de Matamoros (Dge), MX	daily rain	27.4 mm (1.1 in)	6.6 mm (0.26 in)	34 years	20 of 100 (Routine)
23 September 1999	Izucar de Matamoros (Dge), MX	daily high max	32.8 C (91.0 F)	0.6 C (1.1 F)	30 years	15 of 100 (Routine)
14 September 1999	Izucar de Matamoros (Dge), MX	monthly low max (Tie)	20.0 C (68.0 F)	tie	44 years	6 of 100 (Routine)
11 September 1999	Izucar de Matamoros (Dge), MX	daily low min (Tie)	12.8 C (55.0 F)	tie	28 years	3 of 100 (Routine)
1 September 1999	Izucar de Matamoros (Dge), MX	monthly low max (Tie)	20.0 C (68.0 F)	tie	43 years	6 of 100 (Routine)
15 August 1999	Izucar de Matamoros (Dge), MX	daily high max (Tie)	37.8 C (100.0 F)	tie	40 years	4 of 100 (Routine)
14 August 1999	Izucar de Matamoros (Dge), MX	daily high max	38.9 C (102.0 F)	2.2 C (4.0 F)	40 years	25 of 100 (Routine)
13 August 1999	Izucar de Matamoros (Dge), MX	daily high max	38.9 C (102.0 F)	2.2 C (4.0 F)	9 years	15 of 100 (Routine)
11 August 1999	Izucar de Matamoros (Dge), MX	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	9 years	8 of 100 (Routine)
10 August 1999	Izucar de Matamoros (Dge), MX	daily high max	36.7 C (98.1 F)	1.7 C (3.1 F)	38 years	22 of 100 (Routine)
9 August 1999	Izucar de Matamoros (Dge), MX	all-time rain	174.8 mm (6.9 in)	6.9 mm (0.27 in)	0 years	29 of 100 (Routine)
9 August 1999	Izucar de Matamoros (Dge), MX	daily high max (Tie)	35.0 C (95.0 F)	tie	38 years	3 of 100 (Routine)
8 August 1999	Izucar de Matamoros (Dge), MX	all-time rain	167.9 mm (6.6 in)	74.7 mm (2.9 in)	29 years	72 of 100 (Major)
8 August 1999	Izucar de Matamoros (Dge), MX	daily high max	38.9 C (102.0 F)	3.9 C (7.0 F)	9 years	23 of 100 (Routine)
6 August 1999	Izucar de Matamoros (Dge), MX	daily high max	38.9 C (102.0 F)	3.3 C (5.9 F)	9 years	20 of 100 (Routine)

Climate Trend

23 complete years, 1956 to 1997

One stripe for each of 23 complete years at Izucar de Matamoros (Dge), 1956 to 1997. Blue stripes are years cooler than the station's own mean of 21.3 C (70.4 F); red stripes are warmer. The coolest year was 1976, at 20.3 C (68.6 F), and the warmest was 1993, at 23.5 C (74.2 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at Izucar de Matamoros (Dge) as warming stripes, 1956 to 1997
Year	Annual mean temperature	Difference from the station mean
1956	20.7 C	-0.62 C
1957	21.6 C	+0.23 C
1959	22.4 C	+1.02 C
1960	22.7 C	+1.33 C
1964	22.5 C	+1.12 C
1967	21.8 C	+0.49 C
1968	22.0 C	+0.70 C
1972	20.8 C	-0.53 C
1973	20.8 C	-0.57 C
1976	20.3 C	-1.02 C
1977	20.6 C	-0.73 C
1978	21.0 C	-0.38 C
1979	21.2 C	-0.12 C
1980	21.1 C	-0.28 C
1981	20.4 C	-0.94 C
1983	20.5 C	-0.81 C
1984	20.4 C	-0.92 C
1985	20.9 C	-0.47 C
1986	21.0 C	-0.38 C
1987	21.2 C	-0.13 C
1988	20.7 C	-0.66 C
1993	23.5 C	+2.12 C
1997	22.9 C	+1.57 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

1955 to 1999

Yearly extremes at Izucar de Matamoros (Dge): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.6 C (114.1 F)	1998	36.7 C (98.1 F)	45
Coldest night (TNn)	-3.3 C (26.1 F)	1976	3.9 C (39.0 F)	45
Wettest day (Rx1day)	174.8 mm (6.9 in)	1999	53.8 mm (2.1 in)	45
Wettest five days (Rx5day)	359.8 mm (14.2 in)	1999	103.7 mm (4.1 in)	45
Longest dry spell (CDD)	145 days	1957	72 days	45

Hottest day (TXx)

The hottest day of the year at Izucar de Matamoros (Dge), 1955 to 1999. The record is 45.6 C (114.1 F) in 1998, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Izucar de Matamoros (Dge) by year
Year	Hottest day (TXx)
1955	35.6 C (96.1 F)
1956	33.9 C (93.0 F)
1957	35.6 C (96.1 F)
1958	37.8 C (100.0 F)
1959	36.7 C (98.1 F)
1960	36.7 C (98.1 F)
1961	35.6 C (96.1 F)
1962	36.7 C (98.1 F)
1963	37.8 C (100.0 F)
1964	38.9 C (102.0 F)
1965	36.7 C (98.1 F)
1966	37.8 C (100.0 F)
1967	37.8 C (100.0 F)
1968	36.7 C (98.1 F)
1969	36.7 C (98.1 F)
1970	38.9 C (102.0 F)
1971	37.8 C (100.0 F)
1972	35.0 C (95.0 F)
1973	35.6 C (96.1 F)
1974	35.0 C (95.0 F)
1975	36.7 C (98.1 F)
1976	35.0 C (95.0 F)
1977	35.6 C (96.1 F)
1978	35.6 C (96.1 F)
1979	35.6 C (96.1 F)
1980	35.0 C (95.0 F)
1981	35.6 C (96.1 F)
1982	35.6 C (96.1 F)
1983	36.7 C (98.1 F)
1984	35.0 C (95.0 F)
1985	33.9 C (93.0 F)
1986	36.7 C (98.1 F)
1987	35.0 C (95.0 F)
1988	37.8 C (100.0 F)
1989	42.8 C (109.0 F)
1990	31.7 C (89.1 F)
1991	36.1 C (97.0 F)
1992	38.9 C (102.0 F)
1993	37.2 C (99.0 F)
1994	37.8 C (100.0 F)
1995	36.7 C (98.1 F)
1996	37.8 C (100.0 F)
1997	40.0 C (104.0 F)
1998	45.6 C (114.1 F)
1999	43.9 C (111.0 F)

Coldest night (TNn)

The coldest night of the year at Izucar de Matamoros (Dge), 1955 to 1999. The record is -3.3 C (26.1 F) in 1976, marked on the chart; the median year is 3.9 C (39.0 F).

Coldest night (TNn) at Izucar de Matamoros (Dge) by year
Year	Coldest night (TNn)
1955	5.0 C (41.0 F)
1956	3.9 C (39.0 F)
1957	5.0 C (41.0 F)
1958	5.6 C (42.1 F)
1959	5.6 C (42.1 F)
1960	5.6 C (42.1 F)
1961	1.7 C (35.1 F)
1962	5.6 C (42.1 F)
1963	5.0 C (41.0 F)
1964	6.7 C (44.1 F)
1965	6.1 C (43.0 F)
1966	5.0 C (41.0 F)
1967	5.0 C (41.0 F)
1968	4.4 C (39.9 F)
1969	8.9 C (48.0 F)
1970	0.0 C (32.0 F)
1971	1.7 C (35.1 F)
1972	1.7 C (35.1 F)
1973	0.6 C (33.1 F)
1974	0.6 C (33.1 F)
1975	0.6 C (33.1 F)
1976	-3.3 C (26.1 F)
1977	0.6 C (33.1 F)
1978	2.8 C (37.0 F)
1979	3.9 C (39.0 F)
1980	-3.3 C (26.1 F)
1981	1.1 C (34.0 F)
1982	3.3 C (37.9 F)
1983	-2.2 C (28.0 F)
1984	0.6 C (33.1 F)
1985	5.0 C (41.0 F)
1986	-1.7 C (28.9 F)
1987	-1.1 C (30.0 F)
1988	2.2 C (36.0 F)
1989	3.3 C (37.9 F)
1990	2.2 C (36.0 F)
1991	2.8 C (37.0 F)
1992	7.8 C (46.0 F)
1993	10.0 C (50.0 F)
1994	9.4 C (48.9 F)
1995	12.8 C (55.0 F)
1996	7.8 C (46.0 F)
1997	3.9 C (39.0 F)
1998	3.9 C (39.0 F)
1999	5.6 C (42.1 F)

Wettest day (Rx1day)

The wettest day of the year at Izucar de Matamoros (Dge), 1955 to 1999. The record is 174.8 mm (6.9 in) in 1999, marked on the chart; the median year is 53.8 mm (2.1 in).

Wettest day (Rx1day) at Izucar de Matamoros (Dge) by year
Year	Wettest day (Rx1day)
1955	51.8 mm (2.0 in)
1956	45.0 mm (1.8 in)
1957	31.0 mm (1.2 in)
1958	64.8 mm (2.6 in)
1959	71.9 mm (2.8 in)
1960	32.3 mm (1.3 in)
1961	35.8 mm (1.4 in)
1962	59.9 mm (2.4 in)
1963	35.3 mm (1.4 in)
1964	39.9 mm (1.6 in)
1965	58.4 mm (2.3 in)
1966	62.0 mm (2.4 in)
1967	78.0 mm (3.1 in)
1968	34.3 mm (1.4 in)
1969	5.8 mm (0.23 in)
1970	93.2 mm (3.7 in)
1971	62.5 mm (2.5 in)
1972	40.9 mm (1.6 in)
1973	69.9 mm (2.8 in)
1974	62.0 mm (2.4 in)
1975	64.3 mm (2.5 in)
1976	59.9 mm (2.4 in)
1977	54.6 mm (2.1 in)
1978	82.3 mm (3.2 in)
1979	61.0 mm (2.4 in)
1980	38.1 mm (1.5 in)
1981	65.3 mm (2.6 in)
1982	38.9 mm (1.5 in)
1983	39.4 mm (1.6 in)
1984	50.0 mm (2.0 in)
1985	45.5 mm (1.8 in)
1986	54.4 mm (2.1 in)
1987	79.5 mm (3.1 in)
1988	92.5 mm (3.6 in)
1989	39.9 mm (1.6 in)
1990	42.2 mm (1.7 in)
1991	2.5 mm (0.10 in)
1992	78.0 mm (3.1 in)
1993	53.8 mm (2.1 in)
1994	42.9 mm (1.7 in)
1995	39.9 mm (1.6 in)
1996	2.3 mm (0.09 in)
1997	53.8 mm (2.1 in)
1998	74.2 mm (2.9 in)
1999	174.8 mm (6.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Izucar de Matamoros (Dge), 1955 to 1999. The record is 359.8 mm (14.2 in) in 1999, marked on the chart; the median year is 103.7 mm (4.1 in).

Wettest five days (Rx5day) at Izucar de Matamoros (Dge) by year
Year	Wettest five days (Rx5day)
1955	99.6 mm (3.9 in)
1956	86.4 mm (3.4 in)
1957	53.8 mm (2.1 in)
1958	122.1 mm (4.8 in)
1959	144.6 mm (5.7 in)
1960	43.5 mm (1.7 in)
1961	117.9 mm (4.6 in)
1962	79.6 mm (3.1 in)
1963	76.5 mm (3.0 in)
1964	85.7 mm (3.4 in)
1965	129.6 mm (5.1 in)
1966	106.2 mm (4.2 in)
1967	183.5 mm (7.2 in)
1968	93.5 mm (3.7 in)
1969	5.8 mm (0.23 in)
1970	152.1 mm (6.0 in)
1971	124.5 mm (4.9 in)
1972	112.5 mm (4.4 in)
1973	106.3 mm (4.2 in)
1974	103.7 mm (4.1 in)
1975	94.0 mm (3.7 in)
1976	146.3 mm (5.8 in)
1977	140.3 mm (5.5 in)
1978	183.6 mm (7.2 in)
1979	120.8 mm (4.8 in)
1980	81.0 mm (3.2 in)
1981	103.1 mm (4.1 in)
1982	75.2 mm (3.0 in)
1983	119.5 mm (4.7 in)
1984	118.4 mm (4.7 in)
1985	53.2 mm (2.1 in)
1986	92.2 mm (3.6 in)
1987	126.8 mm (5.0 in)
1988	156.3 mm (6.2 in)
1989	86.6 mm (3.4 in)
1990	85.9 mm (3.4 in)
1991	2.5 mm (0.10 in)
1992	115.8 mm (4.6 in)
1993	101.1 mm (4.0 in)
1994	91.0 mm (3.6 in)
1995	110.4 mm (4.3 in)
1996	2.3 mm (0.09 in)
1997	90.4 mm (3.6 in)
1998	177.8 mm (7.0 in)
1999	359.8 mm (14.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Izucar de Matamoros (Dge), 1955 to 1999. The record is 145 days in 1957, marked on the chart; the median year is 72 days.

Longest dry spell (CDD) at Izucar de Matamoros (Dge) by year
Year	Longest dry spell (CDD)
1955	43 days
1956	72 days
1957	145 days
1958	49 days
1959	99 days
1960	141 days
1961	90 days
1962	62 days
1963	123 days
1964	71 days
1965	24 days
1966	68 days
1967	69 days
1968	41 days
1969	107 days
1970	81 days
1971	59 days
1972	105 days
1973	90 days
1974	76 days
1975	65 days
1976	90 days
1977	71 days
1978	80 days
1979	63 days
1980	74 days
1981	56 days
1982	59 days
1983	83 days
1984	85 days
1985	71 days
1986	103 days
1987	62 days
1988	82 days
1989	80 days
1990	52 days
1991	113 days
1992	71 days
1993	93 days
1994	96 days
1995	66 days
1996	48 days
1997	77 days
1998	59 days
1999	64 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

31 years, 1956 to 1997

A day with at least 53.8 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 101.8 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Izucar de Matamoros (Dge): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	53.8 mm (2.1 in)
5 years	69.3 mm (2.7 in)
10 years	78.4 mm (3.1 in)
25 years	88.7 mm (3.5 in)
50 years	95.5 mm (3.8 in)	Longer than the 31 years of record
100 years	101.8 mm (4.0 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 1956 to 1997.

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: 92.5 mm (3.6 in) in 1988; 82.3 mm (3.2 in) in 1978; 79.5 mm (3.1 in) in 1987.

Download the Data

Data for Izucar de Matamoros (Dge) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Izucar de Matamoros (Dge) 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 2026-10-14 (14 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).