Coatepequito Weather Records (MXN00015248)

Record envelope, standing records and threshold days for Coatepequito (MXN00015248), Mexico, with 35 years of record.

Key Facts for Coatepequito

Coatepequito (MXN00015248) is a weather station in Mexico at 18.75 latitude and -99.62 longitude, 1,584 m (5,196 ft) above sea level.
The station reports from 1978 to 2012, 35 years of record.
1,464 records set at Coatepequito still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Coatepequito set a daily record high maximum temperature of 30.0 C (86.0 F) on 19 December 2012.

About the Station

Location: Mexico, 18.75 latitude, -99.62 longitude.
Elevation: 1,584 m (5,196 ft).
Period of record: 1978 to 2012, 35 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 Coatepequito. 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 Coatepequito, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	32.2 C (90.0 F)	0.0 C (32.0 F)	n/a	n/a
Feb	35.6 C (96.1 F)	0.0 C (32.0 F)	n/a	n/a
Mar	36.7 C (98.1 F)	3.9 C (39.0 F)	n/a	n/a
Apr	38.3 C (100.9 F)	4.4 C (39.9 F)	n/a	n/a
May	39.4 C (102.9 F)	5.6 C (42.1 F)	n/a	n/a
Jun	38.3 C (100.9 F)	6.7 C (44.1 F)	n/a	n/a
Jul	33.3 C (91.9 F)	5.6 C (42.1 F)	n/a	n/a
Aug	32.8 C (91.0 F)	5.6 C (42.1 F)	n/a	n/a
Sep	36.1 C (97.0 F)	5.6 C (42.1 F)	n/a	n/a
Oct	31.1 C (88.0 F)	4.4 C (39.9 F)	n/a	n/a
Nov	31.7 C (89.1 F)	0.0 C (32.0 F)	n/a	n/a
Dec	31.7 C (89.1 F)	0.0 C (32.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Coatepequito still stand. 2004 holds the most, with 224.

Standing records at Coatepequito by the year they were set
Year set	Standing records
1978	40
1979	39
1980	43
1981	40
1982	32
1983	41
1984	31
1985	25
1986	29
1987	29
1988	22
1989	40
1990	36
1991	15
1992	33
1993	14
1994	8
1995	19
1996	21
1997	20
1998	64
1999	34
2000	104
2001	15
2002	23
2003	39
2004	224
2005	169
2006	60
2007	50
2008	14
2009	34
2010	45
2011	2
2012	10

Wettest Day of Each Month

Sep: 74.9 mm (2.9 in)

The wettest day on record for each calendar month at Coatepequito. The most was 74.9 mm (2.9 in) on 24 September 1980.

Record daily precipitation for each month at Coatepequito
Month	Record daily precipitation (mm)	Date
Jan	27.9 mm (1.1 in)	25 January 1992
Feb	59.4 mm (2.3 in)	4 February 2010
Mar	32.3 mm (1.3 in)	2 March 2001
Apr	48.8 mm (1.9 in)	7 April 1997
May	66.8 mm (2.6 in)	13 May 1991
Jun	72.9 mm (2.9 in)	18 June 1985
Jul	47.8 mm (1.9 in)	4 July 1979
Aug	55.4 mm (2.2 in)	18 August 1999
Sep	74.9 mm (2.9 in)	24 September 1980
Oct	66.8 mm (2.6 in)	10 October 2008
Nov	70.9 mm (2.8 in)	16 November 2006
Dec	25.9 mm (1.0 in)	30 December 1995

Period of Record Coverage

1978 to 2012

35 years of record at Coatepequito, 1978 to 2012. 3 years have data for under 90 percent of days and are left out of rankings: 1978, 2007, 2011.

Days with data per year at Coatepequito
Year	Days with data	Share of year	Complete
1978	162	44%	No
1979	363	99%	Yes
1980	335	92%	Yes
1981	334	92%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	365	100%	Yes
1985	364	100%	Yes
1986	365	100%	Yes
1987	362	99%	Yes
1988	361	99%	Yes
1989	359	98%	Yes
1990	359	98%	Yes
1991	364	100%	Yes
1992	363	99%	Yes
1993	362	99%	Yes
1994	363	99%	Yes
1995	364	100%	Yes
1996	364	99%	Yes
1997	330	90%	Yes
1998	361	99%	Yes
1999	365	100%	Yes
2000	334	91%	Yes
2001	353	97%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	365	100%	Yes
2005	363	99%	Yes
2006	362	99%	Yes
2007	273	75%	No
2008	366	100%	Yes
2009	364	100%	Yes
2010	364	100%	Yes
2011	120	33%	No
2012	332	91%	Yes

Latest Records

Latest records at Coatepequito
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 December 2012	Coatepequito, MX	daily high max	30.0 C (86.0 F)	0.6 C (1.1 F)	7 years	7 of 100 (Routine)
2 November 2012	Coatepequito, MX	daily low max	20.0 C (68.0 F)	3.9 C (7.0 F)	34 years	31 of 100 (Routine)
29 October 2012	Coatepequito, MX	daily rain	33.3 mm (1.3 in)	26.9 mm (1.1 in)	32 years	38 of 100 (Notable)
28 October 2012	Coatepequito, MX	daily rain	10.4 mm (0.4 in)	3.5 mm (0.14 in)	32 years	15 of 100 (Routine)
19 October 2012	Coatepequito, MX	daily high max (Tie)	30.0 C (86.0 F)	tie	7 years	1 of 100 (Routine)
10 September 2012	Coatepequito, MX	daily rain	50.0 mm (2.0 in)	17.2 mm (0.7 in)	14 years	22 of 100 (Routine)
9 September 2012	Coatepequito, MX	daily rain	29.0 mm (1.1 in)	1.1 mm (0.04 in)	5 years	4 of 100 (Routine)
17 August 2012	Coatepequito, MX	daily high max (Tie)	30.0 C (86.0 F)	tie	34 years	3 of 100 (Routine)
26 July 2012	Coatepequito, MX	daily rain	35.3 mm (1.4 in)	5.3 mm (0.21 in)	20 years	14 of 100 (Routine)
26 July 2012	Coatepequito, MX	daily high max (Tie)	30.0 C (86.0 F)	tie	3 years	0 of 100 (Routine)
12 July 2012	Coatepequito, MX	daily rain	24.4 mm (1.0 in)	1.5 mm (0.06 in)	33 years	13 of 100 (Routine)
6 July 2012	Coatepequito, MX	daily high max (Tie)	30.0 C (86.0 F)	tie	6 years	1 of 100 (Routine)
2 July 2012	Coatepequito, MX	monthly high max	33.3 C (91.9 F)	1.6 C (2.9 F)	5 years	21 of 100 (Routine)
25 June 2012	Coatepequito, MX	daily high max	32.8 C (91.0 F)	2.2 C (4.0 F)	6 years	10 of 100 (Routine)
19 June 2012	Coatepequito, MX	daily rain	38.9 mm (1.5 in)	15.0 mm (0.6 in)	32 years	23 of 100 (Routine)
16 June 2012	Coatepequito, MX	daily high max	33.9 C (93.0 F)	2.2 C (4.0 F)	14 years	13 of 100 (Routine)
31 May 2012	Coatepequito, MX	daily high max	36.7 C (98.1 F)	0.6 C (1.1 F)	7 years	6 of 100 (Routine)
5 May 2012	Coatepequito, MX	daily rain	7.9 mm (0.31 in)	4.1 mm (0.16 in)	23 years	13 of 100 (Routine)
27 March 2012	Coatepequito, MX	daily rain	18.3 mm (0.7 in)	15.5 mm (0.6 in)	8 years	20 of 100 (Routine)
10 March 2012	Coatepequito, MX	daily rain	1.8 mm (0.07 in)	1.5 mm (0.06 in)	5 years	5 of 100 (Routine)

Climate Trend

27 complete years, 1979 to 2010

One stripe for each of 27 complete years at Coatepequito, 1979 to 2010. Blue stripes are years cooler than the station's own mean of 19.7 C (67.5 F); red stripes are warmer. The coolest year was 2004, at 17.7 C (63.9 F), and the warmest was 2005, at 22.2 C (72.0 F). The strongest colour marks a difference of 2.6 C (4.7 F).

Annual mean temperature at Coatepequito as warming stripes, 1979 to 2010
Year	Annual mean temperature	Difference from the station mean
1979	19.5 C	-0.25 C
1982	19.7 C	-0.02 C
1983	19.3 C	-0.41 C
1984	19.0 C	-0.68 C
1985	18.9 C	-0.82 C
1986	19.0 C	-0.70 C
1987	19.3 C	-0.46 C
1988	19.3 C	-0.37 C
1989	18.9 C	-0.78 C
1990	19.3 C	-0.45 C
1991	19.6 C	-0.14 C
1992	18.9 C	-0.86 C
1993	19.7 C	+0.02 C
1994	19.8 C	+0.06 C
1995	19.5 C	-0.18 C
1996	19.0 C	-0.74 C
1998	21.2 C	+1.48 C
1999	21.1 C	+1.41 C
2001	19.5 C	-0.22 C
2002	19.0 C	-0.73 C
2003	18.4 C	-1.34 C
2004	17.7 C	-1.97 C
2005	22.2 C	+2.51 C
2006	21.8 C	+2.07 C
2008	21.0 C	+1.28 C
2009	21.2 C	+1.48 C
2010	20.6 C	+0.93 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

1978 to 2012

Yearly extremes at Coatepequito: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.4 C (102.9 F)	2007	34.4 C (93.9 F)	35
Coldest night (TNn)	0.0 C (32.0 F)	1998	3.9 C (39.0 F)	35
Wettest day (Rx1day)	74.9 mm (2.9 in)	1980	48.8 mm (1.9 in)	35
Wettest five days (Rx5day)	147.3 mm (5.8 in)	1980	103.7 mm (4.1 in)	35
Longest dry spell (CDD)	130 days	1998	66 days	35

Hottest day (TXx)

The hottest day of the year at Coatepequito, 1978 to 2012. The record is 39.4 C (102.9 F) in 2007, marked on the chart; the median year is 34.4 C (93.9 F).

Hottest day (TXx) at Coatepequito by year
Year	Hottest day (TXx)
1978	31.1 C (88.0 F)
1979	34.4 C (93.9 F)
1980	33.3 C (91.9 F)
1981	33.3 C (91.9 F)
1982	33.9 C (93.0 F)
1983	34.4 C (93.9 F)
1984	33.3 C (91.9 F)
1985	32.8 C (91.0 F)
1986	33.3 C (91.9 F)
1987	32.8 C (91.0 F)
1988	33.9 C (93.0 F)
1989	33.3 C (91.9 F)
1990	32.8 C (91.0 F)
1991	35.0 C (95.0 F)
1992	33.9 C (93.0 F)
1993	33.9 C (93.0 F)
1994	35.0 C (95.0 F)
1995	34.4 C (93.9 F)
1996	32.8 C (91.0 F)
1997	32.8 C (91.0 F)
1998	37.2 C (99.0 F)
1999	36.7 C (98.1 F)
2000	36.7 C (98.1 F)
2001	35.6 C (96.1 F)
2002	35.6 C (96.1 F)
2003	35.6 C (96.1 F)
2004	35.6 C (96.1 F)
2005	38.9 C (102.0 F)
2006	37.8 C (100.0 F)
2007	39.4 C (102.9 F)
2008	37.8 C (100.0 F)
2009	38.3 C (100.9 F)
2010	37.8 C (100.0 F)
2011	36.7 C (98.1 F)
2012	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Coatepequito, 1978 to 2012. The record is 0.0 C (32.0 F) in 1998, marked on the chart; the median year is 3.9 C (39.0 F).

Coldest night (TNn) at Coatepequito by year
Year	Coldest night (TNn)
1978	6.7 C (44.1 F)
1979	1.1 C (34.0 F)
1980	3.9 C (39.0 F)
1981	2.8 C (37.0 F)
1982	5.0 C (41.0 F)
1983	3.9 C (39.0 F)
1984	3.3 C (37.9 F)
1985	5.6 C (42.1 F)
1986	0.6 C (33.1 F)
1987	3.9 C (39.0 F)
1988	0.6 C (33.1 F)
1989	1.7 C (35.1 F)
1990	5.6 C (42.1 F)
1991	6.7 C (44.1 F)
1992	3.9 C (39.0 F)
1993	5.6 C (42.1 F)
1994	5.6 C (42.1 F)
1995	5.6 C (42.1 F)
1996	2.8 C (37.0 F)
1997	3.9 C (39.0 F)
1998	0.0 C (32.0 F)
1999	2.8 C (37.0 F)
2000	2.8 C (37.0 F)
2001	1.7 C (35.1 F)
2002	0.0 C (32.0 F)
2003	0.0 C (32.0 F)
2004	0.0 C (32.0 F)
2005	1.1 C (34.0 F)
2006	3.9 C (39.0 F)
2007	5.6 C (42.1 F)
2008	2.8 C (37.0 F)
2009	5.6 C (42.1 F)
2010	2.8 C (37.0 F)
2011	6.1 C (43.0 F)
2012	5.6 C (42.1 F)

Wettest day (Rx1day)

The wettest day of the year at Coatepequito, 1978 to 2012. The record is 74.9 mm (2.9 in) in 1980, marked on the chart; the median year is 48.8 mm (1.9 in).

Wettest day (Rx1day) at Coatepequito by year
Year	Wettest day (Rx1day)
1978	41.9 mm (1.6 in)
1979	47.8 mm (1.9 in)
1980	74.9 mm (2.9 in)
1981	64.8 mm (2.6 in)
1982	44.5 mm (1.8 in)
1983	39.9 mm (1.6 in)
1984	49.3 mm (1.9 in)
1985	72.9 mm (2.9 in)
1986	32.8 mm (1.3 in)
1987	46.5 mm (1.8 in)
1988	49.8 mm (2.0 in)
1989	47.8 mm (1.9 in)
1990	45.0 mm (1.8 in)
1991	66.8 mm (2.6 in)
1992	39.9 mm (1.6 in)
1993	46.0 mm (1.8 in)
1994	50.8 mm (2.0 in)
1995	42.9 mm (1.7 in)
1996	47.0 mm (1.9 in)
1997	48.8 mm (1.9 in)
1998	64.8 mm (2.6 in)
1999	55.4 mm (2.2 in)
2000	63.8 mm (2.5 in)
2001	45.5 mm (1.8 in)
2002	51.8 mm (2.0 in)
2003	71.4 mm (2.8 in)
2004	35.8 mm (1.4 in)
2005	42.4 mm (1.7 in)
2006	70.9 mm (2.8 in)
2007	40.4 mm (1.6 in)
2008	66.8 mm (2.6 in)
2009	54.9 mm (2.2 in)
2010	59.4 mm (2.3 in)
2011	39.9 mm (1.6 in)
2012	50.0 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Coatepequito, 1978 to 2012. The record is 147.3 mm (5.8 in) in 1980, marked on the chart; the median year is 103.7 mm (4.1 in).

Wettest five days (Rx5day) at Coatepequito by year
Year	Wettest five days (Rx5day)
1978	98.3 mm (3.9 in)
1979	70.2 mm (2.8 in)
1980	147.3 mm (5.8 in)
1981	136.9 mm (5.4 in)
1982	103.4 mm (4.1 in)
1983	118.2 mm (4.7 in)
1984	96.3 mm (3.8 in)
1985	146.0 mm (5.7 in)
1986	80.8 mm (3.2 in)
1987	79.1 mm (3.1 in)
1988	119.1 mm (4.7 in)
1989	77.5 mm (3.1 in)
1990	120.0 mm (4.7 in)
1991	129.9 mm (5.1 in)
1992	105.9 mm (4.2 in)
1993	134.3 mm (5.3 in)
1994	104.7 mm (4.1 in)
1995	121.4 mm (4.8 in)
1996	86.7 mm (3.4 in)
1997	96.9 mm (3.8 in)
1998	97.9 mm (3.9 in)
1999	102.5 mm (4.0 in)
2000	103.7 mm (4.1 in)
2001	76.2 mm (3.0 in)
2002	123.1 mm (4.8 in)
2003	120.0 mm (4.7 in)
2004	74.5 mm (2.9 in)
2005	102.4 mm (4.0 in)
2006	91.5 mm (3.6 in)
2007	122.5 mm (4.8 in)
2008	115.4 mm (4.5 in)
2009	91.4 mm (3.6 in)
2010	106.0 mm (4.2 in)
2011	66.6 mm (2.6 in)
2012	118.9 mm (4.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Coatepequito, 1978 to 2012. The record is 130 days in 1998, marked on the chart; the median year is 66 days.

Longest dry spell (CDD) at Coatepequito by year
Year	Longest dry spell (CDD)
1978	21 days
1979	54 days
1980	66 days
1981	48 days
1982	58 days
1983	72 days
1984	65 days
1985	51 days
1986	58 days
1987	71 days
1988	93 days
1989	92 days
1990	41 days
1991	105 days
1992	57 days
1993	111 days
1994	107 days
1995	45 days
1996	115 days
1997	46 days
1998	130 days
1999	73 days
2000	67 days
2001	65 days
2002	45 days
2003	77 days
2004	55 days
2005	52 days
2006	113 days
2007	83 days
2008	117 days
2009	61 days
2010	88 days
2011	101 days
2012	30 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

32 years, 1979 to 2012

A day with at least 51.3 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 87.6 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Coatepequito: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	51.3 mm (2.0 in)
5 years	61.9 mm (2.4 in)
10 years	68.5 mm (2.7 in)
25 years	76.5 mm (3.0 in)
50 years	82.2 mm (3.2 in)	Longer than the 32 years of record
100 years	87.6 mm (3.4 in)	Longer than the 32 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, 32 years of values from 1979 to 2012.

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: 74.9 mm (2.9 in) in 1980; 72.9 mm (2.9 in) in 1985; 71.4 mm (2.8 in) in 2003.

Download the Data

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