Oxolotan Weather Records (MXN00027070)

Record envelope, standing records and threshold days for Oxolotan (MXN00027070), Mexico, with 40 years of record.

Key Facts for Oxolotan

Oxolotan (MXN00027070) is a weather station in Mexico at 17.37 latitude and -92.75 longitude, 63 m (206 ft) above sea level.
The station reports from 1974 to 2013, 40 years of record.
1,464 records set at Oxolotan still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Oxolotan tied a daily record low maximum temperature of 30.0 C (86.0 F) on 28 May 2013.

About the Station

Location: Mexico, 17.37 latitude, -92.75 longitude.
Elevation: 63 m (206 ft).
Period of record: 1974 to 2013, 40 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 Oxolotan. 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 Oxolotan, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	39.4 C (102.9 F)	11.1 C (52.0 F)	n/a	n/a
Feb	38.9 C (102.0 F)	10.0 C (50.0 F)	n/a	n/a
Mar	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Apr	42.8 C (109.0 F)	12.2 C (54.0 F)	n/a	n/a
May	43.3 C (109.9 F)	17.8 C (64.0 F)	n/a	n/a
Jun	41.7 C (107.1 F)	19.4 C (66.9 F)	n/a	n/a
Jul	39.4 C (102.9 F)	18.9 C (66.0 F)	n/a	n/a
Aug	40.6 C (105.1 F)	17.8 C (64.0 F)	n/a	n/a
Sep	38.9 C (102.0 F)	15.6 C (60.1 F)	n/a	n/a
Oct	38.9 C (102.0 F)	15.6 C (60.1 F)	n/a	n/a
Nov	38.9 C (102.0 F)	11.7 C (53.1 F)	n/a	n/a
Dec	37.2 C (99.0 F)	11.7 C (53.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Oxolotan still stand. 2004 holds the most, with 104.

Standing records at Oxolotan by the year they were set
Year set	Standing records
1974	36
1975	23
1976	54
1977	36
1978	31
1979	31
1980	33
1981	31
1982	28
1983	28
1984	53
1985	18
1986	37
1987	55
1988	59
1989	50
1990	34
1991	38
1992	22
1993	32
1994	25
1995	33
1996	26
1997	29
1998	32
1999	30
2000	46
2001	31
2002	37
2003	54
2004	104
2005	84
2006	31
2007	20
2008	24
2009	23
2010	28
2011	39
2012	16
2013	23

All-Time Record Progression

3 new records

3 all-time records were set at Oxolotan between 28 October 2007 and 8 May 2012. Each dot is a new record.

When Oxolotan set new all-time records
Date	Kind	Detail
2007-10-28	Record daily precipitation	Record daily precipitation 317.0 mm (12.5 in)
2009-08-12	Record high minimum temperature	Record high minimum temperature 27.2 C (81.0 F)
2012-05-08	Record high minimum temperature	Record high minimum temperature 30.0 C (86.0 F)

Wettest Day of Each Month

Oct: 317.0 mm (12.5 in)

The wettest day on record for each calendar month at Oxolotan. The most was 317.0 mm (12.5 in) on 28 October 2007.

Record daily precipitation for each month at Oxolotan
Month	Record daily precipitation (mm)	Date
Jan	251.2 mm (9.9 in)	2 January 1978
Feb	220.2 mm (8.7 in)	11 February 1981
Mar	281.9 mm (11.1 in)	20 March 1986
Apr	215.9 mm (8.5 in)	29 April 2008
May	199.9 mm (7.9 in)	30 May 1986
Jun	159.3 mm (6.3 in)	22 June 1992
Jul	123.4 mm (4.9 in)	8 July 2011
Aug	195.1 mm (7.7 in)	30 August 1976
Sep	276.4 mm (10.9 in)	25 September 1984
Oct	317.0 mm (12.5 in)	28 October 2007
Nov	254.0 mm (10.0 in)	9 November 1990
Dec	300.0 mm (11.8 in)	6 December 1977

Period of Record Coverage

1974 to 2013

40 years of record at Oxolotan, 1974 to 2013. 8 years have data for under 90 percent of days and are left out of rankings: 1974, 1991, 1998, 1999, 2000, 2003, 2006, 2013.

Days with data per year at Oxolotan
Year	Days with data	Share of year	Complete
1974	230	63%	No
1975	365	100%	Yes
1976	364	99%	Yes
1977	365	100%	Yes
1978	363	99%	Yes
1979	364	100%	Yes
1980	365	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	363	99%	Yes
1984	365	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	363	99%	Yes
1988	365	100%	Yes
1989	363	99%	Yes
1990	364	100%	Yes
1991	321	88%	No
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	354	97%	Yes
1998	280	77%	No
1999	226	62%	No
2000	324	89%	No
2001	360	99%	Yes
2002	360	99%	Yes
2003	296	81%	No
2004	362	99%	Yes
2005	332	91%	Yes
2006	310	85%	No
2007	335	92%	Yes
2008	336	92%	Yes
2009	363	99%	Yes
2010	365	100%	Yes
2011	364	100%	Yes
2012	362	99%	Yes
2013	143	39%	No

Latest Records

Latest records at Oxolotan
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 May 2013	Oxolotan, MX	daily low max (Tie)	30.0 C (86.0 F)	tie	39 years	3 of 100 (Routine)
23 May 2013	Oxolotan, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	30 years	3 of 100 (Routine)
22 May 2013	Oxolotan, MX	daily high min	26.1 C (79.0 F)	1.1 C (2.0 F)	28 years	19 of 100 (Routine)
21 May 2013	Oxolotan, MX	daily high min	26.1 C (79.0 F)	1.1 C (2.0 F)	23 years	17 of 100 (Routine)
19 May 2013	Oxolotan, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	24 years	2 of 100 (Routine)
6 May 2013	Oxolotan, MX	daily low max	25.6 C (78.1 F)	4.4 C (7.9 F)	34 years	30 of 100 (Routine)
5 May 2013	Oxolotan, MX	daily low max	25.0 C (77.0 F)	2.2 C (4.0 F)	34 years	22 of 100 (Routine)
27 April 2013	Oxolotan, MX	daily high min (Tie)	25.6 C (78.1 F)	tie	24 years	2 of 100 (Routine)
23 April 2013	Oxolotan, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	18 years	2 of 100 (Routine)
21 April 2013	Oxolotan, MX	daily low max (Tie)	28.9 C (84.0 F)	tie	4 years	1 of 100 (Routine)
19 April 2013	Oxolotan, MX	daily high min	25.0 C (77.0 F)	1.1 C (2.0 F)	24 years	16 of 100 (Routine)
18 April 2013	Oxolotan, MX	daily high min	25.0 C (77.0 F)	1.1 C (2.0 F)	20 years	15 of 100 (Routine)
17 April 2013	Oxolotan, MX	daily high min	25.0 C (77.0 F)	0.6 C (1.1 F)	0 years	7 of 100 (Routine)
16 April 2013	Oxolotan, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	22 years	2 of 100 (Routine)
14 April 2013	Oxolotan, MX	daily high min (Tie)	23.9 C (75.0 F)	tie	19 years	2 of 100 (Routine)
6 April 2013	Oxolotan, MX	daily low max	23.9 C (75.0 F)	1.7 C (3.1 F)	36 years	18 of 100 (Routine)
27 March 2013	Oxolotan, MX	daily rain	25.7 mm (1.0 in)	8.4 mm (0.33 in)	27 years	14 of 100 (Routine)
24 March 2013	Oxolotan, MX	daily high max	40.0 C (104.0 F)	2.2 C (4.0 F)	8 years	11 of 100 (Routine)
23 March 2013	Oxolotan, MX	daily high max	38.9 C (102.0 F)	1.1 C (2.0 F)	18 years	11 of 100 (Routine)
22 March 2013	Oxolotan, MX	daily high max (Tie)	40.0 C (104.0 F)	tie	8 years	1 of 100 (Routine)

Climate Trend

31 complete years, 1975 to 2012

One stripe for each of 31 complete years at Oxolotan, 1975 to 2012. Blue stripes are years cooler than the station's own mean of 26.1 C (78.9 F); red stripes are warmer. The coolest year was 1976, at 25.1 C (77.1 F), and the warmest was 2004, at 27.6 C (81.6 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Oxolotan as warming stripes, 1975 to 2012
Year	Annual mean temperature	Difference from the station mean
1975	26.1 C	-0.02 C
1976	25.1 C	-1.03 C
1977	25.6 C	-0.50 C
1978	25.5 C	-0.61 C
1979	25.4 C	-0.69 C
1980	25.4 C	-0.64 C
1981	25.5 C	-0.57 C
1982	26.1 C	+0.04 C
1983	25.9 C	-0.20 C
1984	25.1 C	-0.98 C
1985	25.9 C	-0.14 C
1986	25.8 C	-0.32 C
1987	25.9 C	-0.17 C
1988	26.7 C	+0.60 C
1989	26.6 C	+0.53 C
1990	26.8 C	+0.67 C
1992	26.1 C	+0.05 C
1993	26.1 C	+0.01 C
1994	26.1 C	-0.01 C
1995	26.4 C	+0.31 C
1996	25.6 C	-0.52 C
1997	25.8 C	-0.25 C
2000	26.6 C	+0.55 C
2001	26.8 C	+0.76 C
2002	26.8 C	+0.71 C
2004	27.6 C	+1.49 C
2007	26.6 C	+0.50 C
2009	26.4 C	+0.27 C
2010	25.5 C	-0.54 C
2011	26.5 C	+0.38 C
2012	26.3 C	+0.24 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1975 to 2012. In Fahrenheit: 0.5 F (0.2 to 0.8) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Oxolotan
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.1 to 0.5) per decade	0.5 F (0.2 to 0.8) per decade	1975 to 2012	31	Rise
Mean daily maximum	0.2 C (-0.1 to 0.6) per decade	0.4 F (-0.2 to 1.0) per decade	1975 to 2012	31	Not clearly different from zero
Mean daily minimum	0.4 C (0.2 to 0.5) per decade	0.6 F (0.4 to 0.9) per decade	1975 to 2012	31	Rise

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

1974 to 2013

Yearly extremes at Oxolotan: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.3 C (109.9 F)	1999	39.4 C (102.9 F)	40
Coldest night (TNn)	10.0 C (50.0 F)	1984	12.2 C (54.0 F)	40
Wettest day (Rx1day)	317.0 mm (12.5 in)	2007	158.9 mm (6.3 in)	40
Wettest five days (Rx5day)	631.0 mm (24.8 in)	1986	296.5 mm (11.7 in)	40
Longest dry spell (CDD)	45 days	1991	16 days	40

Hottest day (TXx)

The hottest day of the year at Oxolotan, 1974 to 2013. The record is 43.3 C (109.9 F) in 1999, marked on the chart; the median year is 39.4 C (102.9 F).

Hottest day (TXx) at Oxolotan by year
Year	Hottest day (TXx)
1974	37.2 C (99.0 F)
1975	40.6 C (105.1 F)
1976	38.3 C (100.9 F)
1977	37.8 C (100.0 F)
1978	39.4 C (102.9 F)
1979	38.9 C (102.0 F)
1980	39.4 C (102.9 F)
1981	38.9 C (102.0 F)
1982	38.9 C (102.0 F)
1983	40.0 C (104.0 F)
1984	40.0 C (104.0 F)
1985	38.3 C (100.9 F)
1986	38.3 C (100.9 F)
1987	38.3 C (100.9 F)
1988	40.6 C (105.1 F)
1989	40.0 C (104.0 F)
1990	38.9 C (102.0 F)
1991	40.0 C (104.0 F)
1992	37.8 C (100.0 F)
1993	37.8 C (100.0 F)
1994	38.3 C (100.9 F)
1995	40.0 C (104.0 F)
1996	36.7 C (98.1 F)
1997	36.1 C (97.0 F)
1998	40.0 C (104.0 F)
1999	43.3 C (109.9 F)
2000	40.0 C (104.0 F)
2001	41.1 C (106.0 F)
2002	40.0 C (104.0 F)
2003	42.2 C (108.0 F)
2004	42.2 C (108.0 F)
2005	42.8 C (109.0 F)
2006	38.9 C (102.0 F)
2007	40.0 C (104.0 F)
2008	39.4 C (102.9 F)
2009	38.9 C (102.0 F)
2010	40.0 C (104.0 F)
2011	41.1 C (106.0 F)
2012	38.9 C (102.0 F)
2013	40.0 C (104.0 F)

Coldest night (TNn)

The coldest night of the year at Oxolotan, 1974 to 2013. The record is 10.0 C (50.0 F) in 1984, marked on the chart; the median year is 12.2 C (54.0 F).

Coldest night (TNn) at Oxolotan by year
Year	Coldest night (TNn)
1974	14.4 C (57.9 F)
1975	13.3 C (55.9 F)
1976	12.2 C (54.0 F)
1977	12.8 C (55.0 F)
1978	12.2 C (54.0 F)
1979	14.4 C (57.9 F)
1980	12.2 C (54.0 F)
1981	12.2 C (54.0 F)
1982	12.2 C (54.0 F)
1983	13.3 C (55.9 F)
1984	10.0 C (50.0 F)
1985	12.2 C (54.0 F)
1986	12.2 C (54.0 F)
1987	11.1 C (52.0 F)
1988	13.9 C (57.0 F)
1989	10.0 C (50.0 F)
1990	12.8 C (55.0 F)
1991	12.2 C (54.0 F)
1992	15.6 C (60.1 F)
1993	14.4 C (57.9 F)
1994	14.4 C (57.9 F)
1995	14.4 C (57.9 F)
1996	10.0 C (50.0 F)
1997	11.7 C (53.1 F)
1998	11.7 C (53.1 F)
1999	11.7 C (53.1 F)
2000	11.7 C (53.1 F)
2001	11.1 C (52.0 F)
2002	11.1 C (52.0 F)
2003	12.2 C (54.0 F)
2004	13.9 C (57.0 F)
2005	11.7 C (53.1 F)
2006	14.4 C (57.9 F)
2007	15.6 C (60.1 F)
2008	15.0 C (59.0 F)
2009	14.4 C (57.9 F)
2010	12.8 C (55.0 F)
2011	15.0 C (59.0 F)
2012	15.6 C (60.1 F)
2013	10.0 C (50.0 F)

Wettest day (Rx1day)

The wettest day of the year at Oxolotan, 1974 to 2013. The record is 317.0 mm (12.5 in) in 2007, marked on the chart; the median year is 158.9 mm (6.3 in).

Wettest day (Rx1day) at Oxolotan by year
Year	Wettest day (Rx1day)
1974	162.1 mm (6.4 in)
1975	240.8 mm (9.5 in)
1976	197.9 mm (7.8 in)
1977	300.0 mm (11.8 in)
1978	251.2 mm (9.9 in)
1979	199.9 mm (7.9 in)
1980	158.5 mm (6.2 in)
1981	220.2 mm (8.7 in)
1982	141.7 mm (5.6 in)
1983	188.2 mm (7.4 in)
1984	276.4 mm (10.9 in)
1985	146.8 mm (5.8 in)
1986	281.9 mm (11.1 in)
1987	142.5 mm (5.6 in)
1988	103.1 mm (4.1 in)
1989	238.0 mm (9.4 in)
1990	261.9 mm (10.3 in)
1991	133.6 mm (5.3 in)
1992	159.3 mm (6.3 in)
1993	176.3 mm (6.9 in)
1994	168.7 mm (6.6 in)
1995	141.7 mm (5.6 in)
1996	180.3 mm (7.1 in)
1997	136.4 mm (5.4 in)
1998	106.2 mm (4.2 in)
1999	135.1 mm (5.3 in)
2000	112.3 mm (4.4 in)
2001	167.1 mm (6.6 in)
2002	141.0 mm (5.6 in)
2003	190.0 mm (7.5 in)
2004	131.6 mm (5.2 in)
2005	102.4 mm (4.0 in)
2006	145.8 mm (5.7 in)
2007	317.0 mm (12.5 in)
2008	215.9 mm (8.5 in)
2009	97.0 mm (3.8 in)
2010	146.1 mm (5.8 in)
2011	123.4 mm (4.9 in)
2012	140.0 mm (5.5 in)
2013	87.4 mm (3.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Oxolotan, 1974 to 2013. The record is 631.0 mm (24.8 in) in 1986, marked on the chart; the median year is 296.5 mm (11.7 in).

Wettest five days (Rx5day) at Oxolotan by year
Year	Wettest five days (Rx5day)
1974	310.9 mm (12.2 in)
1975	409.4 mm (16.1 in)
1976	330.8 mm (13.0 in)
1977	311.7 mm (12.3 in)
1978	467.6 mm (18.4 in)
1979	406.7 mm (16.0 in)
1980	262.5 mm (10.3 in)
1981	461.8 mm (18.2 in)
1982	259.4 mm (10.2 in)
1983	295.4 mm (11.6 in)
1984	413.5 mm (16.3 in)
1985	199.7 mm (7.9 in)
1986	631.0 mm (24.8 in)
1987	203.3 mm (8.0 in)
1988	274.6 mm (10.8 in)
1989	401.6 mm (15.8 in)
1990	515.1 mm (20.3 in)
1991	214.6 mm (8.4 in)
1992	366.1 mm (14.4 in)
1993	354.2 mm (13.9 in)
1994	264.2 mm (10.4 in)
1995	281.4 mm (11.1 in)
1996	278.3 mm (11.0 in)
1997	189.2 mm (7.4 in)
1998	235.7 mm (9.3 in)
1999	358.9 mm (14.1 in)
2000	241.1 mm (9.5 in)
2001	376.7 mm (14.8 in)
2002	371.6 mm (14.6 in)
2003	297.7 mm (11.7 in)
2004	289.6 mm (11.4 in)
2005	207.9 mm (8.2 in)
2006	429.4 mm (16.9 in)
2007	551.7 mm (21.7 in)
2008	316.0 mm (12.4 in)
2009	190.5 mm (7.5 in)
2010	288.2 mm (11.3 in)
2011	240.4 mm (9.5 in)
2012	231.4 mm (9.1 in)
2013	118.2 mm (4.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Oxolotan, 1974 to 2013. The record is 45 days in 1991, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Oxolotan by year
Year	Longest dry spell (CDD)
1974	11 days
1975	16 days
1976	16 days
1977	14 days
1978	18 days
1979	12 days
1980	13 days
1981	16 days
1982	19 days
1983	37 days
1984	20 days
1985	15 days
1986	17 days
1987	18 days
1988	19 days
1989	12 days
1990	13 days
1991	45 days
1992	12 days
1993	14 days
1994	16 days
1995	14 days
1996	15 days
1997	13 days
1998	14 days
1999	29 days
2000	16 days
2001	27 days
2002	33 days
2003	41 days
2004	17 days
2005	12 days
2006	16 days
2007	18 days
2008	19 days
2009	14 days
2010	26 days
2011	25 days
2012	17 days
2013	13 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

37 years, 1975 to 2012

A day with at least 166.3 mm (6.5 in) of rain is expected about once in 2 years. A day with at least 389.3 mm (15.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Oxolotan: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	166.3 mm (6.5 in)
5 years	219.4 mm (8.6 in)
10 years	257.1 mm (10.1 in)
25 years	307.8 mm (12.1 in)
50 years	347.6 mm (13.7 in)	Longer than the 37 years of record
100 years	389.3 mm (15.3 in)	Longer than the 37 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, 37 years of values from 1975 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: 317.0 mm (12.5 in) in 2007; 300.0 mm (11.8 in) in 1977; 281.9 mm (11.1 in) in 1986.

Download the Data

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