Ocuilan E-23 Weather Records (MXN00015256)

Record envelope, standing records and threshold days for Ocuilan E-23 (MXN00015256), Mexico, with 31 years of record.

Key Facts for Ocuilan E-23

Ocuilan E-23 (MXN00015256) is a weather station in Mexico at 18.98 latitude and -99.42 longitude, 2,310 m (7,578 ft) above sea level.
The station reports from 1978 to 2008, 31 years of record.
1,464 records set at Ocuilan E-23 still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 18.98 latitude, -99.42 longitude.
Elevation: 2,310 m (7,578 ft).
Period of record: 1978 to 2008, 31 years.
Eligible elements: none yet.

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 Ocuilan E-23. 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 Ocuilan E-23, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.6 C (78.1 F)	-4.4 C (24.1 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-3.3 C (26.1 F)	n/a	n/a
Mar	29.4 C (84.9 F)	0.6 C (33.1 F)	n/a	n/a
Apr	32.8 C (91.0 F)	2.8 C (37.0 F)	n/a	n/a
May	35.0 C (95.0 F)	5.0 C (41.0 F)	n/a	n/a
Jun	30.0 C (86.0 F)	1.1 C (34.0 F)	n/a	n/a
Jul	27.8 C (82.0 F)	3.9 C (39.0 F)	n/a	n/a
Aug	30.6 C (87.1 F)	3.9 C (39.0 F)	n/a	n/a
Sep	26.7 C (80.1 F)	2.2 C (36.0 F)	n/a	n/a
Oct	28.9 C (84.0 F)	-1.1 C (30.0 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-1.1 C (30.0 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-2.2 C (28.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ocuilan E-23 still stand. 1983 holds the most, with 110.

Standing records at Ocuilan E-23 by the year they were set
Year set	Standing records
1981	81
1982	51
1983	110
1984	87
1985	57
1986	66
1987	90
1988	52
1989	54
1990	21
1992	45
1993	65
1994	43
1995	35
1996	53
1997	55
1998	87
1999	47
2000	44
2001	71
2002	42
2003	44
2004	55
2005	42
2006	52
2008	15

Wettest Day of Each Month

Jul: 141.2 mm (5.6 in)

The wettest day on record for each calendar month at Ocuilan E-23. The most was 141.2 mm (5.6 in) on 27 July 2004.

Record daily precipitation for each month at Ocuilan E-23
Month	Record daily precipitation (mm)	Date
Jan	39.9 mm (1.6 in)	13 January 2002
Feb	16.8 mm (0.7 in)	11 February 1983
Mar	23.9 mm (0.9 in)	30 March 2003
Apr	36.8 mm (1.4 in)	13 April 1985
May	59.9 mm (2.4 in)	28 May 2000
Jun	74.9 mm (2.9 in)	19 June 1980
Jul	141.2 mm (5.6 in)	27 July 2004
Aug	70.9 mm (2.8 in)	3 August 2000
Sep	69.9 mm (2.8 in)	30 September 2003
Oct	85.9 mm (3.4 in)	5 October 2005
Nov	42.9 mm (1.7 in)	1 November 1993
Dec	41.9 mm (1.6 in)	30 December 1995

Period of Record Coverage

1981 to 2008

26 years of record at Ocuilan E-23, 1981 to 2008. 8 years have data for under 90 percent of days and are left out of rankings: 1981, 1986, 1988, 1990, 2003, 2004, 2005, 2008.

Days with data per year at Ocuilan E-23
Year	Days with data	Share of year	Complete
1981	244	67%	No
1982	365	100%	Yes
1983	365	100%	Yes
1984	365	100%	Yes
1985	333	91%	Yes
1986	298	82%	No
1987	364	100%	Yes
1988	315	86%	No
1989	365	100%	Yes
1990	120	33%	No
1992	360	98%	Yes
1993	358	98%	Yes
1994	357	98%	Yes
1995	360	99%	Yes
1996	358	98%	Yes
1997	360	99%	Yes
1998	360	99%	Yes
1999	360	99%	Yes
2000	353	96%	Yes
2001	342	94%	Yes
2002	354	97%	Yes
2003	268	73%	No
2004	235	64%	No
2005	273	75%	No
2006	354	97%	Yes
2008	211	58%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

16 complete years, 1982 to 2006

One stripe for each of 16 complete years at Ocuilan E-23, 1982 to 2006. Blue stripes are years cooler than the station's own mean of 15.2 C (59.4 F); red stripes are warmer. The coolest year was 2000, at 14.8 C (58.6 F), and the warmest was 1998, at 15.8 C (60.4 F). The strongest colour marks a difference of 0.6 C (1.1 F).

Annual mean temperature at Ocuilan E-23 as warming stripes, 1982 to 2006
Year	Annual mean temperature	Difference from the station mean
1982	15.4 C	+0.19 C
1983	15.4 C	+0.22 C
1984	15.0 C	-0.18 C
1987	15.1 C	-0.10 C
1989	15.2 C	-0.06 C
1992	15.3 C	+0.07 C
1993	15.2 C	+0.01 C
1994	15.2 C	-0.03 C
1995	15.6 C	+0.36 C
1996	14.9 C	-0.29 C
1997	15.2 C	-0.06 C
1998	15.8 C	+0.57 C
1999	14.8 C	-0.44 C
2000	14.8 C	-0.45 C
2002	15.2 C	+0.01 C
2006	15.4 C	+0.15 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 2008

Yearly extremes at Ocuilan E-23: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.0 C (95.0 F)	1993	30.0 C (86.0 F)	26
Coldest night (TNn)	-4.4 C (24.1 F)	1988	-0.3 C (31.5 F)	26
Wettest day (Rx1day)	141.2 mm (5.6 in)	2004	59.9 mm (2.4 in)	28
Wettest five days (Rx5day)	188.5 mm (7.4 in)	2004	130.5 mm (5.1 in)	28
Longest dry spell (CDD)	120 days	1989	60 days	28

Hottest day (TXx)

The hottest day of the year at Ocuilan E-23, 1978 to 2008. The record is 35.0 C (95.0 F) in 1993, marked on the chart; the median year is 30.0 C (86.0 F).

Hottest day (TXx) at Ocuilan E-23 by year
Year	Hottest day (TXx)
1978	n/a
1980	n/a
1981	30.0 C (86.0 F)
1982	30.0 C (86.0 F)
1983	30.6 C (87.1 F)
1984	31.7 C (89.1 F)
1985	28.3 C (82.9 F)
1986	30.0 C (86.0 F)
1987	29.4 C (84.9 F)
1988	30.6 C (87.1 F)
1989	30.0 C (86.0 F)
1990	28.9 C (84.0 F)
1992	30.0 C (86.0 F)
1993	35.0 C (95.0 F)
1994	30.0 C (86.0 F)
1995	30.6 C (87.1 F)
1996	28.9 C (84.0 F)
1997	28.9 C (84.0 F)
1998	32.8 C (91.0 F)
1999	30.0 C (86.0 F)
2000	28.9 C (84.0 F)
2001	28.9 C (84.0 F)
2002	30.6 C (87.1 F)
2003	29.4 C (84.9 F)
2004	28.9 C (84.0 F)
2005	31.7 C (89.1 F)
2006	30.6 C (87.1 F)
2008	30.0 C (86.0 F)

Coldest night (TNn)

The coldest night of the year at Ocuilan E-23, 1978 to 2008. The record is -4.4 C (24.1 F) in 1988, marked on the chart; the median year is -0.3 C (31.5 F).

Coldest night (TNn) at Ocuilan E-23 by year
Year	Coldest night (TNn)
1978	n/a
1980	n/a
1981	0.6 C (33.1 F)
1982	0.6 C (33.1 F)
1983	-1.1 C (30.0 F)
1984	0.6 C (33.1 F)
1985	0.0 C (32.0 F)
1986	0.6 C (33.1 F)
1987	0.0 C (32.0 F)
1988	-4.4 C (24.1 F)
1989	-0.6 C (30.9 F)
1990	1.7 C (35.1 F)
1992	0.0 C (32.0 F)
1993	0.0 C (32.0 F)
1994	0.6 C (33.1 F)
1995	0.0 C (32.0 F)
1996	-1.1 C (30.0 F)
1997	-0.6 C (30.9 F)
1998	-3.3 C (26.1 F)
1999	-1.1 C (30.0 F)
2000	-3.3 C (26.1 F)
2001	0.0 C (32.0 F)
2002	0.0 C (32.0 F)
2003	-2.2 C (28.0 F)
2004	-4.4 C (24.1 F)
2005	-1.1 C (30.0 F)
2006	-0.6 C (30.9 F)
2008	-1.1 C (30.0 F)

Wettest day (Rx1day)

The wettest day of the year at Ocuilan E-23, 1978 to 2008. The record is 141.2 mm (5.6 in) in 2004, marked on the chart; the median year is 59.9 mm (2.4 in).

Wettest day (Rx1day) at Ocuilan E-23 by year
Year	Wettest day (Rx1day)
1978	33.8 mm (1.3 in)
1980	74.9 mm (2.9 in)
1981	59.9 mm (2.4 in)
1982	39.9 mm (1.6 in)
1983	61.0 mm (2.4 in)
1984	64.8 mm (2.6 in)
1985	38.9 mm (1.5 in)
1986	41.9 mm (1.6 in)
1987	64.8 mm (2.6 in)
1988	59.9 mm (2.4 in)
1989	62.0 mm (2.4 in)
1990	20.8 mm (0.8 in)
1992	52.8 mm (2.1 in)
1993	74.9 mm (2.9 in)
1994	37.8 mm (1.5 in)
1995	52.8 mm (2.1 in)
1996	59.9 mm (2.4 in)
1997	64.8 mm (2.6 in)
1998	59.9 mm (2.4 in)
1999	59.9 mm (2.4 in)
2000	70.9 mm (2.8 in)
2001	45.0 mm (1.8 in)
2002	67.8 mm (2.7 in)
2003	69.9 mm (2.8 in)
2004	141.2 mm (5.6 in)
2005	85.9 mm (3.4 in)
2006	54.9 mm (2.2 in)
2008	59.9 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ocuilan E-23, 1978 to 2008. The record is 188.5 mm (7.4 in) in 2004, marked on the chart; the median year is 130.5 mm (5.1 in).

Wettest five days (Rx5day) at Ocuilan E-23 by year
Year	Wettest five days (Rx5day)
1978	72.7 mm (2.9 in)
1980	131.2 mm (5.2 in)
1981	135.5 mm (5.3 in)
1982	85.4 mm (3.4 in)
1983	118.4 mm (4.7 in)
1984	118.5 mm (4.7 in)
1985	98.9 mm (3.9 in)
1986	64.3 mm (2.5 in)
1987	131.1 mm (5.2 in)
1988	129.8 mm (5.1 in)
1989	139.1 mm (5.5 in)
1990	21.6 mm (0.9 in)
1992	116.3 mm (4.6 in)
1993	169.6 mm (6.7 in)
1994	86.8 mm (3.4 in)
1995	105.5 mm (4.2 in)
1996	135.4 mm (5.3 in)
1997	158.6 mm (6.2 in)
1998	158.8 mm (6.3 in)
1999	109.2 mm (4.3 in)
2000	125.2 mm (4.9 in)
2001	154.4 mm (6.1 in)
2002	177.2 mm (7.0 in)
2003	101.8 mm (4.0 in)
2004	188.5 mm (7.4 in)
2005	135.2 mm (5.3 in)
2006	154.4 mm (6.1 in)
2008	177.6 mm (7.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ocuilan E-23, 1978 to 2008. The record is 120 days in 1989, marked on the chart; the median year is 60 days.

Longest dry spell (CDD) at Ocuilan E-23 by year
Year	Longest dry spell (CDD)
1978	25 days
1980	56 days
1981	48 days
1982	55 days
1983	72 days
1984	58 days
1985	91 days
1986	40 days
1987	56 days
1988	70 days
1989	120 days
1990	35 days
1992	51 days
1993	59 days
1994	84 days
1995	42 days
1996	68 days
1997	69 days
1998	94 days
1999	80 days
2000	118 days
2001	47 days
2002	85 days
2003	73 days
2004	56 days
2005	37 days
2006	81 days
2008	60 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.

Download the Data

Data for Ocuilan E-23 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ocuilan E-23 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).