Cahuacan Weather Records (MXN00007019)

Record envelope, standing records and threshold days for Cahuacan (MXN00007019), Mexico, with 47 years of record.

Key Facts for Cahuacan

Cahuacan (MXN00007019) is a weather station in Mexico at 14.72 latitude and -92.27 longitude, 50 m (164 ft) above sea level.
The station reports from 1961 to 2007, 47 years of record.
1,464 records set at Cahuacan still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Cahuacan tied a daily record low minimum temperature of 21.7 C (71.1 F) on 30 May 2007.

About the Station

Location: Mexico, 14.72 latitude, -92.27 longitude.
Elevation: 50 m (164 ft).
Period of record: 1961 to 2007, 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 Cahuacan. 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 Cahuacan, 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)	12.8 C (55.0 F)	n/a	n/a
Feb	38.9 C (102.0 F)	14.4 C (57.9 F)	n/a	n/a
Mar	40.0 C (104.0 F)	12.2 C (54.0 F)	n/a	n/a
Apr	40.6 C (105.1 F)	16.7 C (62.1 F)	n/a	n/a
May	40.6 C (105.1 F)	17.2 C (63.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	19.4 C (66.9 F)	n/a	n/a
Jul	39.4 C (102.9 F)	20.0 C (68.0 F)	n/a	n/a
Aug	40.0 C (104.0 F)	18.9 C (66.0 F)	n/a	n/a
Sep	38.3 C (100.9 F)	17.8 C (64.0 F)	n/a	n/a
Oct	39.4 C (102.9 F)	17.8 C (64.0 F)	n/a	n/a
Nov	38.9 C (102.0 F)	16.7 C (62.1 F)	n/a	n/a
Dec	39.4 C (102.9 F)	12.2 C (54.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Cahuacan still stand. 1969 holds the most, with 224.

Standing records at Cahuacan by the year they were set
Year set	Standing records
1962	30
1963	36
1964	37
1965	23
1966	31
1967	27
1968	151
1969	224
1970	39
1971	15
1972	20
1973	18
1974	37
1975	19
1976	56
1977	51
1978	41
1979	23
1980	16
1981	28
1982	17
1983	42
1984	10
1985	11
1986	14
1987	57
1988	26
1989	22
1990	8
1991	11
1992	9
1993	13
1994	17
1995	13
1996	7
1997	30
1998	32
1999	11
2000	16
2001	25
2002	35
2003	54
2004	44
2005	12
2006	6

Wettest Day of Each Month

Sep: 326.4 mm (12.9 in)

The wettest day on record for each calendar month at Cahuacan. The most was 326.4 mm (12.9 in) on 19 September 1982.

Record daily precipitation for each month at Cahuacan
Month	Record daily precipitation (mm)	Date
Jan	27.2 mm (1.1 in)	7 January 1978
Feb	32.5 mm (1.3 in)	27 February 1983
Mar	130.0 mm (5.1 in)	22 March 1999
Apr	107.2 mm (4.2 in)	18 April 1972
May	204.5 mm (8.1 in)	29 May 1986
Jun	140.2 mm (5.5 in)	10 June 1964
Jul	165.1 mm (6.5 in)	7 July 1998
Aug	146.3 mm (5.8 in)	31 August 1973
Sep	326.4 mm (12.9 in)	19 September 1982
Oct	220.0 mm (8.7 in)	3 October 2005
Nov	119.9 mm (4.7 in)	10 November 2006
Dec	59.9 mm (2.4 in)	11 December 1991

Period of Record Coverage

1961 to 2007

47 years of record at Cahuacan, 1961 to 2007. 8 years have data for under 90 percent of days and are left out of rankings: 1961, 1969, 1998, 2000, 2004, 2005, 2006, 2007.

Days with data per year at Cahuacan
Year	Days with data	Share of year	Complete
1961	31	8%	No
1962	364	100%	Yes
1963	364	100%	Yes
1964	366	100%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	364	99%	Yes
1969	311	85%	No
1970	365	100%	Yes
1971	365	100%	Yes
1972	335	92%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	363	99%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	359	98%	Yes
1985	365	100%	Yes
1986	364	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	364	100%	Yes
1995	364	100%	Yes
1996	366	100%	Yes
1997	353	97%	Yes
1998	317	87%	No
1999	365	100%	Yes
2000	312	85%	No
2001	350	96%	Yes
2002	362	99%	Yes
2003	363	99%	Yes
2004	303	83%	No
2005	227	62%	No
2006	312	85%	No
2007	113	31%	No

Latest Records

Latest records at Cahuacan
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 2007	Cahuacan, MX	daily low min (Tie)	21.7 C (71.1 F)	tie	17 years	2 of 100 (Routine)
8 May 2007	Cahuacan, MX	daily low min (Tie)	21.7 C (71.1 F)	tie	40 years	4 of 100 (Routine)
6 May 2007	Cahuacan, MX	daily rain	53.1 mm (2.1 in)	5.3 mm (0.21 in)	36 years	16 of 100 (Routine)
27 February 2007	Cahuacan, MX	daily high max (Tie)	37.8 C (100.0 F)	tie	20 years	2 of 100 (Routine)
20 February 2007	Cahuacan, MX	daily low max (Tie)	33.9 C (93.0 F)	tie	35 years	3 of 100 (Routine)
23 January 2007	Cahuacan, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	16 years	2 of 100 (Routine)
27 November 2006	Cahuacan, MX	monthly low min (Tie)	16.7 C (62.1 F)	tie	5 years	3 of 100 (Routine)
10 November 2006	Cahuacan, MX	monthly rain	119.9 mm (4.7 in)	12.7 mm (0.5 in)	8 years	23 of 100 (Routine)
16 October 2006	Cahuacan, MX	daily rain	89.9 mm (3.5 in)	12.9 mm (0.5 in)	8 years	11 of 100 (Routine)
3 October 2006	Cahuacan, MX	daily high max	36.1 C (97.0 F)	0.5 C (0.9 F)	8 years	8 of 100 (Routine)
1 October 2006	Cahuacan, MX	daily high max	36.1 C (97.0 F)	0.5 C (0.9 F)	19 years	11 of 100 (Routine)
30 September 2006	Cahuacan, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	33 years	3 of 100 (Routine)
27 September 2006	Cahuacan, MX	daily low min (Tie)	20.6 C (69.1 F)	tie	36 years	3 of 100 (Routine)
26 September 2006	Cahuacan, MX	daily low min (Tie)	20.6 C (69.1 F)	tie	0 years	1 of 100 (Routine)
22 August 2006	Cahuacan, MX	daily high max (Tie)	36.7 C (98.1 F)	tie	24 years	2 of 100 (Routine)
14 July 2006	Cahuacan, MX	daily high max	38.3 C (100.9 F)	1.1 C (2.0 F)	8 years	11 of 100 (Routine)
6 July 2006	Cahuacan, MX	daily high max (Tie)	37.8 C (100.0 F)	tie	4 years	1 of 100 (Routine)
24 June 2006	Cahuacan, MX	daily rain	31.5 mm (1.2 in)	2.3 mm (0.09 in)	32 years	14 of 100 (Routine)
10 June 2006	Cahuacan, MX	daily low min (Tie)	21.7 C (71.1 F)	tie	44 years	4 of 100 (Routine)
7 June 2006	Cahuacan, MX	daily low min (Tie)	21.7 C (71.1 F)	tie	27 years	3 of 100 (Routine)

Climate Trend

36 complete years, 1962 to 2003

One stripe for each of 36 complete years at Cahuacan, 1962 to 2003. Blue stripes are years cooler than the station's own mean of 28.1 C (82.5 F); red stripes are warmer. The coolest year was 1968, at 26.3 C (79.3 F), and the warmest was 1987, at 28.9 C (83.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Cahuacan as warming stripes, 1962 to 2003
Year	Annual mean temperature	Difference from the station mean
1962	27.4 C	-0.63 C
1963	27.5 C	-0.61 C
1964	27.4 C	-0.66 C
1965	27.7 C	-0.42 C
1966	27.8 C	-0.24 C
1967	27.7 C	-0.41 C
1968	26.3 C	-1.80 C
1970	27.8 C	-0.31 C
1971	27.5 C	-0.60 C
1973	28.0 C	-0.10 C
1974	27.9 C	-0.20 C
1975	27.8 C	-0.23 C
1976	28.3 C	+0.18 C
1977	28.6 C	+0.48 C
1978	28.6 C	+0.48 C
1979	28.4 C	+0.37 C
1980	28.8 C	+0.68 C
1981	28.4 C	+0.34 C
1982	28.3 C	+0.23 C
1983	28.6 C	+0.52 C
1984	27.9 C	-0.15 C
1985	28.0 C	-0.12 C
1986	28.1 C	+0.04 C
1987	28.9 C	+0.78 C
1988	28.4 C	+0.33 C
1989	27.9 C	-0.14 C
1990	28.2 C	+0.11 C
1991	28.4 C	+0.28 C
1992	28.3 C	+0.26 C
1993	28.3 C	+0.27 C
1994	28.7 C	+0.59 C
1995	28.2 C	+0.16 C
1996	28.1 C	-0.02 C
1999	27.8 C	-0.26 C
2002	28.7 C	+0.61 C
2003	28.4 C	+0.35 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.4) per decade over 1962 to 2003. In Fahrenheit: 0.5 F (0.2 to 0.7) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Cahuacan
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.1 to 0.4) per decade	0.5 F (0.2 to 0.7) per decade	1962 to 2003	36	Rise
Mean daily maximum	0.5 C (0.2 to 0.7) per decade	0.8 F (0.4 to 1.2) per decade	1962 to 2003	36	Rise
Mean daily minimum	0.07 C (-0.03 to 0.17) per decade	0.1 F (-0.1 to 0.3) per decade	1962 to 2003	36	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

1961 to 2007

Yearly extremes at Cahuacan: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1980	38.9 C (102.0 F)	47
Coldest night (TNn)	12.2 C (54.0 F)	1976	16.1 C (61.0 F)	47
Wettest day (Rx1day)	326.4 mm (12.9 in)	1982	102.4 mm (4.0 in)	47
Wettest five days (Rx5day)	498.2 mm (19.6 in)	1998	179.7 mm (7.1 in)	47
Longest dry spell (CDD)	121 days	1994	81 days	47

Hottest day (TXx)

The hottest day of the year at Cahuacan, 1961 to 2007. The record is 40.6 C (105.1 F) in 1980, marked on the chart; the median year is 38.9 C (102.0 F).

Hottest day (TXx) at Cahuacan by year
Year	Hottest day (TXx)
1961	36.1 C (97.0 F)
1962	37.8 C (100.0 F)
1963	36.7 C (98.1 F)
1964	38.3 C (100.9 F)
1965	36.7 C (98.1 F)
1966	36.7 C (98.1 F)
1967	37.2 C (99.0 F)
1968	36.7 C (98.1 F)
1969	37.8 C (100.0 F)
1970	38.3 C (100.9 F)
1971	36.7 C (98.1 F)
1972	38.3 C (100.9 F)
1973	38.9 C (102.0 F)
1974	37.8 C (100.0 F)
1975	37.2 C (99.0 F)
1976	40.0 C (104.0 F)
1977	39.4 C (102.9 F)
1978	40.0 C (104.0 F)
1979	40.0 C (104.0 F)
1980	40.6 C (105.1 F)
1981	38.9 C (102.0 F)
1982	38.9 C (102.0 F)
1983	40.0 C (104.0 F)
1984	38.9 C (102.0 F)
1985	40.0 C (104.0 F)
1986	38.9 C (102.0 F)
1987	40.0 C (104.0 F)
1988	40.0 C (104.0 F)
1989	39.4 C (102.9 F)
1990	38.3 C (100.9 F)
1991	38.9 C (102.0 F)
1992	38.3 C (100.9 F)
1993	38.9 C (102.0 F)
1994	38.9 C (102.0 F)
1995	39.4 C (102.9 F)
1996	38.9 C (102.0 F)
1997	39.4 C (102.9 F)
1998	39.4 C (102.9 F)
1999	38.9 C (102.0 F)
2000	39.4 C (102.9 F)
2001	40.0 C (104.0 F)
2002	40.6 C (105.1 F)
2003	40.6 C (105.1 F)
2004	40.0 C (104.0 F)
2005	40.0 C (104.0 F)
2006	38.3 C (100.9 F)
2007	38.3 C (100.9 F)

Coldest night (TNn)

The coldest night of the year at Cahuacan, 1961 to 2007. The record is 12.2 C (54.0 F) in 1976, marked on the chart; the median year is 16.1 C (61.0 F).

Coldest night (TNn) at Cahuacan by year
Year	Coldest night (TNn)
1961	18.9 C (66.0 F)
1962	16.7 C (62.1 F)
1963	15.6 C (60.1 F)
1964	17.2 C (63.0 F)
1965	16.1 C (61.0 F)
1966	15.0 C (59.0 F)
1967	15.0 C (59.0 F)
1968	15.6 C (60.1 F)
1969	16.1 C (61.0 F)
1970	15.6 C (60.1 F)
1971	16.1 C (61.0 F)
1972	16.7 C (62.1 F)
1973	15.6 C (60.1 F)
1974	15.6 C (60.1 F)
1975	16.1 C (61.0 F)
1976	12.2 C (54.0 F)
1977	14.4 C (57.9 F)
1978	15.6 C (60.1 F)
1979	16.1 C (61.0 F)
1980	17.2 C (63.0 F)
1981	15.6 C (60.1 F)
1982	15.6 C (60.1 F)
1983	15.0 C (59.0 F)
1984	17.8 C (64.0 F)
1985	16.7 C (62.1 F)
1986	15.6 C (60.1 F)
1987	15.0 C (59.0 F)
1988	18.3 C (64.9 F)
1989	15.0 C (59.0 F)
1990	17.8 C (64.0 F)
1991	16.7 C (62.1 F)
1992	15.6 C (60.1 F)
1993	16.7 C (62.1 F)
1994	17.8 C (64.0 F)
1995	18.3 C (64.9 F)
1996	16.1 C (61.0 F)
1997	17.2 C (63.0 F)
1998	14.4 C (57.9 F)
1999	15.0 C (59.0 F)
2000	15.0 C (59.0 F)
2001	16.7 C (62.1 F)
2002	17.2 C (63.0 F)
2003	12.2 C (54.0 F)
2004	12.8 C (55.0 F)
2005	17.8 C (64.0 F)
2006	16.7 C (62.1 F)
2007	18.3 C (64.9 F)

Wettest day (Rx1day)

The wettest day of the year at Cahuacan, 1961 to 2007. The record is 326.4 mm (12.9 in) in 1982, marked on the chart; the median year is 102.4 mm (4.0 in).

Wettest day (Rx1day) at Cahuacan by year
Year	Wettest day (Rx1day)
1961	0.5 mm (0.02 in)
1962	99.3 mm (3.9 in)
1963	200.9 mm (7.9 in)
1964	140.2 mm (5.5 in)
1965	92.5 mm (3.6 in)
1966	90.4 mm (3.6 in)
1967	84.8 mm (3.3 in)
1968	54.6 mm (2.1 in)
1969	160.3 mm (6.3 in)
1970	90.9 mm (3.6 in)
1971	91.2 mm (3.6 in)
1972	123.7 mm (4.9 in)
1973	146.3 mm (5.8 in)
1974	215.9 mm (8.5 in)
1975	80.8 mm (3.2 in)
1976	82.6 mm (3.3 in)
1977	69.9 mm (2.8 in)
1978	163.1 mm (6.4 in)
1979	130.3 mm (5.1 in)
1980	84.3 mm (3.3 in)
1981	91.9 mm (3.6 in)
1982	326.4 mm (12.9 in)
1983	121.2 mm (4.8 in)
1984	99.1 mm (3.9 in)
1985	72.9 mm (2.9 in)
1986	204.5 mm (8.1 in)
1987	52.1 mm (2.1 in)
1988	144.8 mm (5.7 in)
1989	91.9 mm (3.6 in)
1990	99.8 mm (3.9 in)
1991	96.8 mm (3.8 in)
1992	102.4 mm (4.0 in)
1993	133.9 mm (5.3 in)
1994	74.4 mm (2.9 in)
1995	105.7 mm (4.2 in)
1996	136.4 mm (5.4 in)
1997	107.2 mm (4.2 in)
1998	165.1 mm (6.5 in)
1999	130.0 mm (5.1 in)
2000	108.7 mm (4.3 in)
2001	44.2 mm (1.7 in)
2002	78.5 mm (3.1 in)
2003	82.0 mm (3.2 in)
2004	121.9 mm (4.8 in)
2005	220.0 mm (8.7 in)
2006	119.9 mm (4.7 in)
2007	110.5 mm (4.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cahuacan, 1961 to 2007. The record is 498.2 mm (19.6 in) in 1998, marked on the chart; the median year is 179.7 mm (7.1 in).

Wettest five days (Rx5day) at Cahuacan by year
Year	Wettest five days (Rx5day)
1961	0.8 mm (0.03 in)
1962	222.3 mm (8.8 in)
1963	376.4 mm (14.8 in)
1964	237.0 mm (9.3 in)
1965	158.4 mm (6.2 in)
1966	170.9 mm (6.7 in)
1967	167.1 mm (6.6 in)
1968	107.5 mm (4.2 in)
1969	209.0 mm (8.2 in)
1970	160.9 mm (6.3 in)
1971	188.5 mm (7.4 in)
1972	124.0 mm (4.9 in)
1973	345.0 mm (13.6 in)
1974	276.6 mm (10.9 in)
1975	140.7 mm (5.5 in)
1976	182.5 mm (7.2 in)
1977	84.6 mm (3.3 in)
1978	299.5 mm (11.8 in)
1979	264.0 mm (10.4 in)
1980	171.0 mm (6.7 in)
1981	169.1 mm (6.7 in)
1982	479.4 mm (18.9 in)
1983	164.6 mm (6.5 in)
1984	198.7 mm (7.8 in)
1985	155.2 mm (6.1 in)
1986	387.6 mm (15.3 in)
1987	69.3 mm (2.7 in)
1988	269.3 mm (10.6 in)
1989	153.1 mm (6.0 in)
1990	164.1 mm (6.5 in)
1991	143.6 mm (5.7 in)
1992	171.0 mm (6.7 in)
1993	246.4 mm (9.7 in)
1994	157.6 mm (6.2 in)
1995	243.9 mm (9.6 in)
1996	260.4 mm (10.3 in)
1997	148.3 mm (5.8 in)
1998	498.2 mm (19.6 in)
1999	341.4 mm (13.4 in)
2000	166.7 mm (6.6 in)
2001	107.2 mm (4.2 in)
2002	248.4 mm (9.8 in)
2003	179.7 mm (7.1 in)
2004	191.7 mm (7.5 in)
2005	306.1 mm (12.1 in)
2006	234.9 mm (9.2 in)
2007	131.4 mm (5.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Cahuacan, 1961 to 2007. The record is 121 days in 1994, marked on the chart; the median year is 81 days.

Longest dry spell (CDD) at Cahuacan by year
Year	Longest dry spell (CDD)
1961	31 days
1962	105 days
1963	82 days
1964	91 days
1965	61 days
1966	46 days
1967	79 days
1968	73 days
1969	71 days
1970	80 days
1971	87 days
1972	71 days
1973	55 days
1974	58 days
1975	55 days
1976	106 days
1977	81 days
1978	90 days
1979	104 days
1980	82 days
1981	101 days
1982	103 days
1983	57 days
1984	98 days
1985	68 days
1986	60 days
1987	116 days
1988	50 days
1989	86 days
1990	44 days
1991	91 days
1992	49 days
1993	60 days
1994	121 days
1995	52 days
1996	106 days
1997	71 days
1998	116 days
1999	80 days
2000	94 days
2001	59 days
2002	104 days
2003	104 days
2004	116 days
2005	46 days
2006	102 days
2007	88 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

44 years, 1962 to 2006

A day with at least 104.1 mm (4.1 in) of rain is expected about once in 2 years. A day with at least 305.3 mm (12.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Cahuacan: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	104.1 mm (4.1 in)
5 years	145.1 mm (5.7 in)
10 years	176.8 mm (7.0 in)
25 years	222.8 mm (8.8 in)
50 years	261.8 mm (10.3 in)	Longer than the 44 years of record
100 years	305.3 mm (12.0 in)	Longer than the 44 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, 44 years of values from 1962 to 2006.

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: 326.4 mm (12.9 in) in 1982; 215.9 mm (8.5 in) in 1974; 204.5 mm (8.1 in) in 1986.

Download the Data

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