Coyotepec Weather Records (MXN00020022)

Record envelope, standing records and threshold days for Coyotepec (MXN00020022), Mexico, with 47 years of record.

Key Facts for Coyotepec

Coyotepec (MXN00020022) is a weather station in Mexico at 16.95 latitude and -96.70 longitude, 1,533 m (5,029 ft) above sea level.
The station reports from 1961 to 2007, 47 years of record.
1,464 records set at Coyotepec still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Coyotepec tied a daily record high minimum temperature of 15.0 C (59.0 F) on 30 October 2007.

About the Station

Location: Mexico, 16.95 latitude, -96.70 longitude.
Elevation: 1,533 m (5,029 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 Coyotepec. 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 Coyotepec, 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)	-2.2 C (28.0 F)	n/a	n/a
Feb	35.6 C (96.1 F)	-3.3 C (26.1 F)	n/a	n/a
Mar	38.9 C (102.0 F)	0.0 C (32.0 F)	n/a	n/a
Apr	40.0 C (104.0 F)	2.8 C (37.0 F)	n/a	n/a
May	40.0 C (104.0 F)	5.0 C (41.0 F)	n/a	n/a
Jun	38.9 C (102.0 F)	5.0 C (41.0 F)	n/a	n/a
Jul	35.0 C (95.0 F)	3.9 C (39.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	3.9 C (39.0 F)	n/a	n/a
Sep	32.8 C (91.0 F)	5.0 C (41.0 F)	n/a	n/a
Oct	37.8 C (100.0 F)	2.8 C (37.0 F)	n/a	n/a
Nov	37.8 C (100.0 F)	0.6 C (33.1 F)	n/a	n/a
Dec	35.6 C (96.1 F)	-5.0 C (23.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Coyotepec still stand. 1962 holds the most, with 166.

Standing records at Coyotepec by the year they were set
Year set	Standing records
1961	4
1962	166
1963	84
1964	11
1965	22
1966	27
1967	21
1968	18
1969	71
1970	14
1971	76
1972	84
1973	46
1974	8
1975	27
1976	25
1977	28
1978	67
1979	31
1980	15
1981	22
1982	25
1983	34
1984	37
1985	10
1986	20
1987	43
1988	5
1989	26
1990	3
1991	30
1992	6
1993	10
1994	8
1995	19
1996	36
1997	11
1998	31
1999	58
2000	65
2001	47
2002	23
2003	31
2004	8
2005	1
2006	2
2007	8

All-Time Record Progression

1 new records

1 all-time records were set at Coyotepec between 11 August 1996 and 11 August 1996. Each dot is a new record.

Wettest Day of Each Month

Aug: 110.0 mm (4.3 in)

The wettest day on record for each calendar month at Coyotepec. The most was 110.0 mm (4.3 in) on 11 August 1996.

Record daily precipitation for each month at Coyotepec
Month	Record daily precipitation (mm)	Date
Jan	12.4 mm (0.5 in)	22 January 1968
Feb	22.9 mm (0.9 in)	3 February 1995
Mar	25.9 mm (1.0 in)	30 March 1992
Apr	46.0 mm (1.8 in)	11 April 1967
May	62.5 mm (2.5 in)	1 May 1968
Jun	82.8 mm (3.3 in)	27 June 1989
Jul	69.6 mm (2.7 in)	4 July 1974
Aug	110.0 mm (4.3 in)	11 August 1996
Sep	79.8 mm (3.1 in)	13 September 1990
Oct	62.0 mm (2.4 in)	11 October 1997
Nov	33.8 mm (1.3 in)	28 November 1983
Dec	46.0 mm (1.8 in)	18 December 1983

Period of Record Coverage

1961 to 2007

47 years of record at Coyotepec, 1961 to 2007. 10 years have data for under 90 percent of days and are left out of rankings: 1961, 1972, 1980, 1988, 1993, 1998, 2001, 2002 and others.

Days with data per year at Coyotepec
Year	Days with data	Share of year	Complete
1961	65	18%	No
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	364	100%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	299	82%	No
1973	365	100%	Yes
1974	363	99%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	262	72%	No
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	334	91%	Yes
1985	331	91%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	274	75%	No
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	304	83%	No
1994	335	92%	Yes
1995	364	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	273	75%	No
1999	334	92%	Yes
2000	366	100%	Yes
2001	304	83%	No
2002	212	58%	No
2003	304	83%	No
2004	335	92%	Yes
2005	334	92%	Yes
2006	304	83%	No
2007	334	92%	Yes

Latest Records

Latest records at Coyotepec
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 October 2007	Coyotepec, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	34 years	3 of 100 (Routine)
26 October 2007	Coyotepec, MX	daily high min (Tie)	13.9 C (57.0 F)	tie	42 years	4 of 100 (Routine)
25 October 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	12 years	1 of 100 (Routine)
29 September 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	21 years	2 of 100 (Routine)
28 September 2007	Coyotepec, MX	monthly high max (Tie)	32.8 C (91.0 F)	tie	38 years	6 of 100 (Routine)
26 September 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	28 years	3 of 100 (Routine)
20 September 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	20 years	2 of 100 (Routine)
19 September 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	20 years	2 of 100 (Routine)
13 September 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	4 years	1 of 100 (Routine)
11 September 2007	Coyotepec, MX	daily high max (Tie)	30.6 C (87.1 F)	tie	24 years	2 of 100 (Routine)
31 August 2007	Coyotepec, MX	daily high max	31.7 C (89.1 F)	1.1 C (2.0 F)	16 years	12 of 100 (Routine)
30 August 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	2 years	1 of 100 (Routine)
20 August 2007	Coyotepec, MX	daily high max (Tie)	32.8 C (91.0 F)	tie	5 years	1 of 100 (Routine)
17 August 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	24 years	2 of 100 (Routine)
8 August 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	24 years	2 of 100 (Routine)
3 August 2007	Coyotepec, MX	daily high max	32.8 C (91.0 F)	1.1 C (2.0 F)	28 years	16 of 100 (Routine)
2 August 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	28 years	3 of 100 (Routine)
31 July 2007	Coyotepec, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	5 years	1 of 100 (Routine)
29 July 2007	Coyotepec, MX	daily high max (Tie)	30.6 C (87.1 F)	tie	28 years	3 of 100 (Routine)
24 July 2007	Coyotepec, MX	daily high max (Tie)	32.8 C (91.0 F)	tie	28 years	3 of 100 (Routine)

Climate Trend

30 complete years, 1962 to 2000

One stripe for each of 30 complete years at Coyotepec, 1962 to 2000. Blue stripes are years cooler than the station's own mean of 19.8 C (67.7 F); red stripes are warmer. The coolest year was 1962, at 15.8 C (60.4 F), and the warmest was 1969, at 22.0 C (71.6 F). The strongest colour marks a difference of 4.1 C (7.4 F).

Annual mean temperature at Coyotepec as warming stripes, 1962 to 2000
Year	Annual mean temperature	Difference from the station mean
1962	15.8 C	-4.07 C
1963	18.2 C	-1.68 C
1964	19.9 C	+0.02 C
1965	20.0 C	+0.21 C
1966	19.7 C	-0.16 C
1967	19.6 C	-0.21 C
1968	19.8 C	+0.01 C
1969	22.0 C	+2.16 C
1970	20.9 C	+1.06 C
1971	21.3 C	+1.44 C
1973	20.6 C	+0.79 C
1974	19.6 C	-0.26 C
1975	19.9 C	+0.06 C
1976	19.0 C	-0.88 C
1977	19.4 C	-0.47 C
1978	20.7 C	+0.87 C
1979	21.1 C	+1.22 C
1981	19.5 C	-0.35 C
1982	20.6 C	+0.78 C
1983	20.1 C	+0.29 C
1986	20.1 C	+0.31 C
1987	20.2 C	+0.34 C
1989	19.5 C	-0.30 C
1990	19.8 C	-0.01 C
1991	20.2 C	+0.36 C
1992	19.9 C	+0.11 C
1995	20.4 C	+0.54 C
1996	19.1 C	-0.72 C
1997	19.8 C	-0.07 C
2000	18.5 C	-1.37 C

The fitted trend in annual mean temperature here over 1962 to 2000 is 0.1 C (-0.3 to 0.5) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.5 to 0.8) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Coyotepec
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (-0.3 to 0.5) per decade	0.1 F (-0.5 to 0.8) per decade	1962 to 2000	30	Not clearly different from zero
Mean daily maximum	0.8 C (0.3 to 1.3) per decade	1.4 F (0.5 to 2.3) per decade	1962 to 2000	30	Rise
Mean daily minimum	-0.6 C (-1.0 to -0.3) per decade	-1.1 F (-1.8 to -0.5) per decade	1962 to 2000	30	Fall

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 Coyotepec: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1981	36.7 C (98.1 F)	47
Coldest night (TNn)	-5.0 C (23.0 F)	1963	2.8 C (37.0 F)	47
Wettest day (Rx1day)	110.0 mm (4.3 in)	1996	41.9 mm (1.6 in)	47
Wettest five days (Rx5day)	198.4 mm (7.8 in)	1996	84.3 mm (3.3 in)	47
Longest dry spell (CDD)	152 days	1998	84 days	47

Hottest day (TXx)

The hottest day of the year at Coyotepec, 1961 to 2007. The record is 40.0 C (104.0 F) in 1981, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Coyotepec by year
Year	Hottest day (TXx)
1961	30.0 C (86.0 F)
1962	28.9 C (84.0 F)
1963	33.3 C (91.9 F)
1964	35.6 C (96.1 F)
1965	35.0 C (95.0 F)
1966	35.6 C (96.1 F)
1967	34.4 C (93.9 F)
1968	36.7 C (98.1 F)
1969	38.3 C (100.9 F)
1970	38.9 C (102.0 F)
1971	39.4 C (102.9 F)
1972	35.6 C (96.1 F)
1973	36.7 C (98.1 F)
1974	35.6 C (96.1 F)
1975	36.7 C (98.1 F)
1976	33.9 C (93.0 F)
1977	38.9 C (102.0 F)
1978	35.6 C (96.1 F)
1979	33.9 C (93.0 F)
1980	37.8 C (100.0 F)
1981	40.0 C (104.0 F)
1982	40.0 C (104.0 F)
1983	38.9 C (102.0 F)
1984	33.9 C (93.0 F)
1985	35.0 C (95.0 F)
1986	37.8 C (100.0 F)
1987	38.9 C (102.0 F)
1988	37.8 C (100.0 F)
1989	36.7 C (98.1 F)
1990	35.6 C (96.1 F)
1991	38.9 C (102.0 F)
1992	36.7 C (98.1 F)
1993	36.7 C (98.1 F)
1994	36.7 C (98.1 F)
1995	37.8 C (100.0 F)
1996	37.8 C (100.0 F)
1997	36.7 C (98.1 F)
1998	40.0 C (104.0 F)
1999	37.8 C (100.0 F)
2000	35.6 C (96.1 F)
2001	37.8 C (100.0 F)
2002	35.6 C (96.1 F)
2003	36.7 C (98.1 F)
2004	33.9 C (93.0 F)
2005	37.8 C (100.0 F)
2006	35.6 C (96.1 F)
2007	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Coyotepec, 1961 to 2007. The record is -5.0 C (23.0 F) in 1963, marked on the chart; the median year is 2.8 C (37.0 F).

Coldest night (TNn) at Coyotepec by year
Year	Coldest night (TNn)
1961	3.9 C (39.0 F)
1962	3.3 C (37.9 F)
1963	-5.0 C (23.0 F)
1964	2.8 C (37.0 F)
1965	1.7 C (35.1 F)
1966	0.6 C (33.1 F)
1967	-1.1 C (30.0 F)
1968	0.0 C (32.0 F)
1969	4.4 C (39.9 F)
1970	6.7 C (44.1 F)
1971	8.3 C (46.9 F)
1972	3.9 C (39.0 F)
1973	1.7 C (35.1 F)
1974	1.7 C (35.1 F)
1975	3.3 C (37.9 F)
1976	3.9 C (39.0 F)
1977	2.8 C (37.0 F)
1978	4.4 C (39.9 F)
1979	9.4 C (48.9 F)
1980	5.6 C (42.1 F)
1981	1.7 C (35.1 F)
1982	5.0 C (41.0 F)
1983	1.7 C (35.1 F)
1984	0.6 C (33.1 F)
1985	2.8 C (37.0 F)
1986	0.0 C (32.0 F)
1987	-3.3 C (26.1 F)
1988	0.6 C (33.1 F)
1989	0.0 C (32.0 F)
1990	1.7 C (35.1 F)
1991	0.6 C (33.1 F)
1992	2.8 C (37.0 F)
1993	1.7 C (35.1 F)
1994	0.6 C (33.1 F)
1995	1.7 C (35.1 F)
1996	0.0 C (32.0 F)
1997	0.0 C (32.0 F)
1998	0.0 C (32.0 F)
1999	0.0 C (32.0 F)
2000	2.8 C (37.0 F)
2001	5.0 C (41.0 F)
2002	3.9 C (39.0 F)
2003	5.0 C (41.0 F)
2004	5.0 C (41.0 F)
2005	3.9 C (39.0 F)
2006	6.7 C (44.1 F)
2007	10.0 C (50.0 F)

Wettest day (Rx1day)

The wettest day of the year at Coyotepec, 1961 to 2007. The record is 110.0 mm (4.3 in) in 1996, marked on the chart; the median year is 41.9 mm (1.6 in).

Wettest day (Rx1day) at Coyotepec by year
Year	Wettest day (Rx1day)
1961	23.9 mm (0.9 in)
1962	50.8 mm (2.0 in)
1963	11.9 mm (0.5 in)
1964	35.3 mm (1.4 in)
1965	50.3 mm (2.0 in)
1966	40.9 mm (1.6 in)
1967	46.0 mm (1.8 in)
1968	62.5 mm (2.5 in)
1969	47.8 mm (1.9 in)
1970	66.8 mm (2.6 in)
1971	40.4 mm (1.6 in)
1972	41.9 mm (1.6 in)
1973	27.4 mm (1.1 in)
1974	69.6 mm (2.7 in)
1975	59.9 mm (2.4 in)
1976	22.9 mm (0.9 in)
1977	32.8 mm (1.3 in)
1978	30.0 mm (1.2 in)
1979	62.0 mm (2.4 in)
1980	30.0 mm (1.2 in)
1981	57.9 mm (2.3 in)
1982	36.8 mm (1.4 in)
1983	63.0 mm (2.5 in)
1984	59.9 mm (2.4 in)
1985	31.8 mm (1.3 in)
1986	61.0 mm (2.4 in)
1987	52.8 mm (2.1 in)
1988	66.8 mm (2.6 in)
1989	82.8 mm (3.3 in)
1990	79.8 mm (3.1 in)
1991	59.9 mm (2.4 in)
1992	39.9 mm (1.6 in)
1993	39.9 mm (1.6 in)
1994	49.8 mm (2.0 in)
1995	62.0 mm (2.4 in)
1996	110.0 mm (4.3 in)
1997	62.0 mm (2.4 in)
1998	54.9 mm (2.2 in)
1999	34.8 mm (1.4 in)
2000	24.9 mm (1.0 in)
2001	37.8 mm (1.5 in)
2002	9.9 mm (0.39 in)
2003	10.9 mm (0.4 in)
2004	5.8 mm (0.23 in)
2005	7.9 mm (0.31 in)
2006	5.8 mm (0.23 in)
2007	4.8 mm (0.19 in)

Wettest five days (Rx5day)

The wettest five days of the year at Coyotepec, 1961 to 2007. The record is 198.4 mm (7.8 in) in 1996, marked on the chart; the median year is 84.3 mm (3.3 in).

Wettest five days (Rx5day) at Coyotepec by year
Year	Wettest five days (Rx5day)
1961	36.3 mm (1.4 in)
1962	98.5 mm (3.9 in)
1963	19.3 mm (0.8 in)
1964	67.0 mm (2.6 in)
1965	97.9 mm (3.9 in)
1966	84.3 mm (3.3 in)
1967	107.5 mm (4.2 in)
1968	82.3 mm (3.2 in)
1969	185.4 mm (7.3 in)
1970	178.2 mm (7.0 in)
1971	138.0 mm (5.4 in)
1972	74.8 mm (2.9 in)
1973	58.1 mm (2.3 in)
1974	122.1 mm (4.8 in)
1975	121.7 mm (4.8 in)
1976	68.9 mm (2.7 in)
1977	75.2 mm (3.0 in)
1978	109.5 mm (4.3 in)
1979	132.6 mm (5.2 in)
1980	72.2 mm (2.8 in)
1981	164.7 mm (6.5 in)
1982	69.6 mm (2.7 in)
1983	97.3 mm (3.8 in)
1984	101.4 mm (4.0 in)
1985	83.3 mm (3.3 in)
1986	140.5 mm (5.5 in)
1987	91.4 mm (3.6 in)
1988	113.5 mm (4.5 in)
1989	154.4 mm (6.1 in)
1990	122.5 mm (4.8 in)
1991	130.0 mm (5.1 in)
1992	64.5 mm (2.5 in)
1993	66.3 mm (2.6 in)
1994	79.5 mm (3.1 in)
1995	107.5 mm (4.2 in)
1996	198.4 mm (7.8 in)
1997	119.6 mm (4.7 in)
1998	68.3 mm (2.7 in)
1999	60.4 mm (2.4 in)
2000	54.6 mm (2.1 in)
2001	86.4 mm (3.4 in)
2002	38.3 mm (1.5 in)
2003	35.5 mm (1.4 in)
2004	12.4 mm (0.5 in)
2005	13.7 mm (0.5 in)
2006	15.0 mm (0.6 in)
2007	10.4 mm (0.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Coyotepec, 1961 to 2007. The record is 152 days in 1998, marked on the chart; the median year is 84 days.

Longest dry spell (CDD) at Coyotepec by year
Year	Longest dry spell (CDD)
1961	27 days
1962	142 days
1963	64 days
1964	130 days
1965	106 days
1966	73 days
1967	63 days
1968	61 days
1969	102 days
1970	134 days
1971	83 days
1972	31 days
1973	61 days
1974	77 days
1975	133 days
1976	84 days
1977	120 days
1978	125 days
1979	102 days
1980	129 days
1981	51 days
1982	59 days
1983	66 days
1984	58 days
1985	59 days
1986	64 days
1987	107 days
1988	100 days
1989	127 days
1990	51 days
1991	110 days
1992	51 days
1993	78 days
1994	151 days
1995	56 days
1996	135 days
1997	87 days
1998	152 days
1999	83 days
2000	128 days
2001	66 days
2002	64 days
2003	101 days
2004	45 days
2005	116 days
2006	139 days
2007	110 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

34 years, 1962 to 2007

A day with at least 48.5 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 92.9 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Coyotepec: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	48.5 mm (1.9 in)
5 years	65.9 mm (2.6 in)
10 years	74.8 mm (2.9 in)
25 years	83.6 mm (3.3 in)
50 years	88.7 mm (3.5 in)	Longer than the 34 years of record
100 years	92.9 mm (3.7 in)	Longer than the 34 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, 34 years of values from 1962 to 2007.

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: 110.0 mm (4.3 in) in 1996; 82.8 mm (3.3 in) in 1989; 69.6 mm (2.7 in) in 1974.

Download the Data

Data for Coyotepec standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Coyotepec 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 2026-10-16 (16 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).