E.T.Arroyo 107 Petatlan Weather Records (MXN00012165)

Record envelope, standing records and threshold days for E.T.Arroyo 107 Petatlan (MXN00012165), Mexico, with 36 years of record.

Key Facts for E.T.Arroyo 107 Petatlan

E.T.Arroyo 107 Petatlan (MXN00012165) is a weather station in Mexico at 17.53 latitude and -101.27 longitude, 27 m (88 ft) above sea level.
The station reports from 1975 to 2010, 36 years of record.
1,464 records set at E.T.Arroyo 107 Petatlan still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
E.T.Arroyo 107 Petatlan tied a daily record low maximum temperature of 29.4 C (84.9 F) on 22 July 2010.

About the Station

Location: Mexico, 17.53 latitude, -101.27 longitude.
Elevation: 27 m (88 ft).
Period of record: 1975 to 2010, 36 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 E.T.Arroyo 107 Petatlan. 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 E.T.Arroyo 107 Petatlan, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.2 C (99.0 F)	10.6 C (51.1 F)	n/a	n/a
Feb	38.9 C (102.0 F)	11.7 C (53.1 F)	n/a	n/a
Mar	38.3 C (100.9 F)	11.7 C (53.1 F)	n/a	n/a
Apr	39.4 C (102.9 F)	12.8 C (55.0 F)	n/a	n/a
May	38.9 C (102.0 F)	11.1 C (52.0 F)	n/a	n/a
Jun	38.9 C (102.0 F)	17.8 C (64.0 F)	n/a	n/a
Jul	37.2 C (99.0 F)	18.3 C (64.9 F)	n/a	n/a
Aug	37.8 C (100.0 F)	20.0 C (68.0 F)	n/a	n/a
Sep	38.3 C (100.9 F)	18.3 C (64.9 F)	n/a	n/a
Oct	35.6 C (96.1 F)	18.3 C (64.9 F)	n/a	n/a
Nov	35.6 C (96.1 F)	15.0 C (59.0 F)	n/a	n/a
Dec	35.6 C (96.1 F)	15.0 C (59.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at E.T.Arroyo 107 Petatlan still stand. 1993 holds the most, with 92.

Standing records at E.T.Arroyo 107 Petatlan by the year they were set
Year set	Standing records
1975	35
1976	31
1977	64
1978	39
1979	49
1980	38
1981	38
1982	64
1983	30
1984	35
1985	44
1986	78
1987	45
1988	49
1989	28
1990	41
1991	41
1992	27
1993	92
1994	31
1995	27
1996	39
1997	32
1998	32
1999	31
2000	40
2001	17
2002	2
2003	62
2004	39
2005	49
2006	23
2007	55
2008	87
2009	11
2010	19

Wettest Day of Each Month

Oct: 254.0 mm (10.0 in)

The wettest day on record for each calendar month at E.T.Arroyo 107 Petatlan. The most was 254.0 mm (10.0 in) on 7 October 1976.

Record daily precipitation for each month at E.T.Arroyo 107 Petatlan
Month	Record daily precipitation (mm)	Date
Jan	78.0 mm (3.1 in)	23 January 1980
Feb	195.1 mm (7.7 in)	3 February 2010
Mar	48.3 mm (1.9 in)	30 March 1991
Apr	0.0 mm (0.00 in)	10 April 1975
May	86.4 mm (3.4 in)	30 May 1978
Jun	156.7 mm (6.2 in)	19 June 1993
Jul	220.0 mm (8.7 in)	13 July 1975
Aug	140.2 mm (5.5 in)	9 August 1992
Sep	224.3 mm (8.8 in)	3 September 1988
Oct	254.0 mm (10.0 in)	7 October 1976
Nov	105.2 mm (4.1 in)	9 November 1997
Dec	41.9 mm (1.6 in)	15 December 1992

Period of Record Coverage

1975 to 2010

36 years of record at E.T.Arroyo 107 Petatlan, 1975 to 2010. 11 years have data for under 90 percent of days and are left out of rankings: 1975, 1987, 1991, 1992, 2001, 2002, 2003, 2007 and others.

Days with data per year at E.T.Arroyo 107 Petatlan
Year	Days with data	Share of year	Complete
1975	260	71%	No
1976	366	100%	Yes
1977	351	96%	Yes
1978	363	99%	Yes
1979	363	99%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	335	92%	Yes
1985	354	97%	Yes
1986	353	97%	Yes
1987	328	90%	No
1988	336	92%	Yes
1989	336	92%	Yes
1990	336	92%	Yes
1991	277	76%	No
1992	184	50%	No
1993	365	100%	Yes
1994	343	94%	Yes
1995	337	92%	Yes
1996	336	92%	Yes
1997	335	92%	Yes
1998	332	91%	Yes
1999	335	92%	Yes
2000	335	92%	Yes
2001	304	83%	No
2002	120	33%	No
2003	214	59%	No
2004	330	90%	Yes
2005	335	92%	Yes
2006	329	90%	Yes
2007	289	79%	No
2008	298	81%	No
2009	228	62%	No
2010	129	35%	No

Latest Records

Latest records at E.T.Arroyo 107 Petatlan
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 July 2010	E.T.Arroyo 107 Petatlan, MX	daily low max (Tie)	29.4 C (84.9 F)	tie	16 years	1 of 100 (Routine)
20 July 2010	E.T.Arroyo 107 Petatlan, MX	daily low max	28.3 C (82.9 F)	0.6 C (1.1 F)	1 year	6 of 100 (Routine)
16 July 2010	E.T.Arroyo 107 Petatlan, MX	daily low min (Tie)	20.6 C (69.1 F)	tie	35 years	3 of 100 (Routine)
15 July 2010	E.T.Arroyo 107 Petatlan, MX	daily low min (Tie)	20.6 C (69.1 F)	tie	1 year	0 of 100 (Routine)
11 July 2010	E.T.Arroyo 107 Petatlan, MX	daily low max (Tie)	30.0 C (86.0 F)	tie	20 years	2 of 100 (Routine)
6 July 2010	E.T.Arroyo 107 Petatlan, MX	daily low min	20.6 C (69.1 F)	0.5 C (0.9 F)	35 years	17 of 100 (Routine)
3 July 2010	E.T.Arroyo 107 Petatlan, MX	daily low min (Tie)	21.7 C (71.1 F)	tie	16 years	1 of 100 (Routine)
2 July 2010	E.T.Arroyo 107 Petatlan, MX	daily rain	41.4 mm (1.6 in)	9.6 mm (0.38 in)	11 years	10 of 100 (Routine)
1 July 2010	E.T.Arroyo 107 Petatlan, MX	daily low max	27.8 C (82.0 F)	1.6 C (2.9 F)	7 years	13 of 100 (Routine)
29 June 2010	E.T.Arroyo 107 Petatlan, MX	daily low max	27.8 C (82.0 F)	1.1 C (2.0 F)	13 years	12 of 100 (Routine)
30 April 2010	E.T.Arroyo 107 Petatlan, MX	daily low max	28.9 C (84.0 F)	1.1 C (2.0 F)	1 year	9 of 100 (Routine)
29 April 2010	E.T.Arroyo 107 Petatlan, MX	daily low max	29.4 C (84.9 F)	0.6 C (1.1 F)	1 year	6 of 100 (Routine)
28 April 2010	E.T.Arroyo 107 Petatlan, MX	daily low max (Tie)	30.0 C (86.0 F)	tie	1 year	0 of 100 (Routine)
27 April 2010	E.T.Arroyo 107 Petatlan, MX	daily low max	30.0 C (86.0 F)	1.1 C (2.0 F)	16 years	13 of 100 (Routine)
26 April 2010	E.T.Arroyo 107 Petatlan, MX	daily low max (Tie)	30.0 C (86.0 F)	tie	1 year	0 of 100 (Routine)
22 April 2010	E.T.Arroyo 107 Petatlan, MX	monthly low max	28.3 C (82.9 F)	1.1 C (2.0 F)	34 years	29 of 100 (Routine)
7 April 2010	E.T.Arroyo 107 Petatlan, MX	daily low max (Tie)	30.0 C (86.0 F)	tie	33 years	3 of 100 (Routine)
23 March 2010	E.T.Arroyo 107 Petatlan, MX	daily low max (Tie)	30.0 C (86.0 F)	tie	8 years	1 of 100 (Routine)
10 March 2010	E.T.Arroyo 107 Petatlan, MX	daily high min (Tie)	21.7 C (71.1 F)	tie	3 years	0 of 100 (Routine)
9 March 2010	E.T.Arroyo 107 Petatlan, MX	daily high min (Tie)	21.7 C (71.1 F)	tie	16 years	2 of 100 (Routine)

Climate Trend

10 complete years, 1976 to 1993

One stripe for each of 10 complete years at E.T.Arroyo 107 Petatlan, 1976 to 1993. Blue stripes are years cooler than the station's own mean of 26.9 C (80.5 F); red stripes are warmer. The coolest year was 1981, at 26.3 C (79.4 F), and the warmest was 1993, at 27.8 C (82.0 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at E.T.Arroyo 107 Petatlan as warming stripes, 1976 to 1993
Year	Annual mean temperature	Difference from the station mean
1976	26.4 C	-0.56 C
1977	27.2 C	+0.22 C
1978	26.8 C	-0.16 C
1979	26.7 C	-0.26 C
1980	27.0 C	+0.02 C
1981	26.3 C	-0.63 C
1982	27.5 C	+0.60 C
1983	26.9 C	-0.02 C
1985	26.9 C	-0.09 C
1993	27.8 C	+0.84 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

1975 to 2010

Yearly extremes at E.T.Arroyo 107 Petatlan: 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)	1993	35.6 C (96.1 F)	36
Coldest night (TNn)	10.6 C (51.1 F)	1997	13.9 C (57.0 F)	36
Wettest day (Rx1day)	254.0 mm (10.0 in)	1976	114.6 mm (4.5 in)	36
Wettest five days (Rx5day)	410.0 mm (16.1 in)	1975	185.1 mm (7.3 in)	36
Longest dry spell (CDD)	159 days	2008	116 days	36

Hottest day (TXx)

The hottest day of the year at E.T.Arroyo 107 Petatlan, 1975 to 2010. The record is 39.4 C (102.9 F) in 1993, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at E.T.Arroyo 107 Petatlan by year
Year	Hottest day (TXx)
1975	35.6 C (96.1 F)
1976	38.3 C (100.9 F)
1977	38.3 C (100.9 F)
1978	35.6 C (96.1 F)
1979	36.1 C (97.0 F)
1980	36.1 C (97.0 F)
1981	36.1 C (97.0 F)
1982	37.2 C (99.0 F)
1983	35.6 C (96.1 F)
1984	35.6 C (96.1 F)
1985	36.7 C (98.1 F)
1986	37.8 C (100.0 F)
1987	36.7 C (98.1 F)
1988	35.0 C (95.0 F)
1989	37.2 C (99.0 F)
1990	36.7 C (98.1 F)
1991	38.9 C (102.0 F)
1992	36.7 C (98.1 F)
1993	39.4 C (102.9 F)
1994	37.2 C (99.0 F)
1995	35.6 C (96.1 F)
1996	35.6 C (96.1 F)
1997	36.7 C (98.1 F)
1998	36.1 C (97.0 F)
1999	35.0 C (95.0 F)
2000	35.0 C (95.0 F)
2001	35.0 C (95.0 F)
2002	34.4 C (93.9 F)
2003	35.0 C (95.0 F)
2004	35.0 C (95.0 F)
2005	35.0 C (95.0 F)
2006	35.0 C (95.0 F)
2007	35.0 C (95.0 F)
2008	34.4 C (93.9 F)
2009	35.6 C (96.1 F)
2010	33.9 C (93.0 F)

Coldest night (TNn)

The coldest night of the year at E.T.Arroyo 107 Petatlan, 1975 to 2010. The record is 10.6 C (51.1 F) in 1997, marked on the chart; the median year is 13.9 C (57.0 F).

Coldest night (TNn) at E.T.Arroyo 107 Petatlan by year
Year	Coldest night (TNn)
1975	15.0 C (59.0 F)
1976	11.7 C (53.1 F)
1977	13.9 C (57.0 F)
1978	15.6 C (60.1 F)
1979	11.1 C (52.0 F)
1980	13.9 C (57.0 F)
1981	12.8 C (55.0 F)
1982	15.0 C (59.0 F)
1983	15.0 C (59.0 F)
1984	13.9 C (57.0 F)
1985	12.8 C (55.0 F)
1986	13.3 C (55.9 F)
1987	12.8 C (55.0 F)
1988	15.0 C (59.0 F)
1989	13.9 C (57.0 F)
1990	13.9 C (57.0 F)
1991	13.9 C (57.0 F)
1992	17.8 C (64.0 F)
1993	15.6 C (60.1 F)
1994	16.1 C (61.0 F)
1995	12.8 C (55.0 F)
1996	13.3 C (55.9 F)
1997	10.6 C (51.1 F)
1998	11.7 C (53.1 F)
1999	13.3 C (55.9 F)
2000	13.9 C (57.0 F)
2001	15.6 C (60.1 F)
2002	14.4 C (57.9 F)
2003	20.0 C (68.0 F)
2004	15.6 C (60.1 F)
2005	13.9 C (57.0 F)
2006	16.7 C (62.1 F)
2007	15.0 C (59.0 F)
2008	12.2 C (54.0 F)
2009	17.8 C (64.0 F)
2010	15.0 C (59.0 F)

Wettest day (Rx1day)

The wettest day of the year at E.T.Arroyo 107 Petatlan, 1975 to 2010. The record is 254.0 mm (10.0 in) in 1976, marked on the chart; the median year is 114.6 mm (4.5 in).

Wettest day (Rx1day) at E.T.Arroyo 107 Petatlan by year
Year	Wettest day (Rx1day)
1975	220.0 mm (8.7 in)
1976	254.0 mm (10.0 in)
1977	83.3 mm (3.3 in)
1978	86.4 mm (3.4 in)
1979	131.1 mm (5.2 in)
1980	78.0 mm (3.1 in)
1981	142.5 mm (5.6 in)
1982	71.1 mm (2.8 in)
1983	117.1 mm (4.6 in)
1984	180.8 mm (7.1 in)
1985	103.6 mm (4.1 in)
1986	54.6 mm (2.1 in)
1987	79.8 mm (3.1 in)
1988	224.3 mm (8.8 in)
1989	212.9 mm (8.4 in)
1990	76.5 mm (3.0 in)
1991	118.6 mm (4.7 in)
1992	140.2 mm (5.5 in)
1993	156.7 mm (6.2 in)
1994	109.5 mm (4.3 in)
1995	124.0 mm (4.9 in)
1996	89.2 mm (3.5 in)
1997	105.2 mm (4.1 in)
1998	108.2 mm (4.3 in)
1999	100.3 mm (3.9 in)
2000	146.3 mm (5.8 in)
2001	77.2 mm (3.0 in)
2002	41.9 mm (1.6 in)
2003	112.0 mm (4.4 in)
2004	127.3 mm (5.0 in)
2005	124.0 mm (4.9 in)
2006	105.2 mm (4.1 in)
2007	195.6 mm (7.7 in)
2008	140.5 mm (5.5 in)
2009	81.0 mm (3.2 in)
2010	195.1 mm (7.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at E.T.Arroyo 107 Petatlan, 1975 to 2010. The record is 410.0 mm (16.1 in) in 1975, marked on the chart; the median year is 185.1 mm (7.3 in).

Wettest five days (Rx5day) at E.T.Arroyo 107 Petatlan by year
Year	Wettest five days (Rx5day)
1975	410.0 mm (16.1 in)
1976	285.6 mm (11.2 in)
1977	154.2 mm (6.1 in)
1978	155.0 mm (6.1 in)
1979	170.5 mm (6.7 in)
1980	180.7 mm (7.1 in)
1981	358.2 mm (14.1 in)
1982	114.9 mm (4.5 in)
1983	189.4 mm (7.5 in)
1984	393.7 mm (15.5 in)
1985	139.5 mm (5.5 in)
1986	60.8 mm (2.4 in)
1987	124.8 mm (4.9 in)
1988	316.8 mm (12.5 in)
1989	373.5 mm (14.7 in)
1990	111.3 mm (4.4 in)
1991	179.5 mm (7.1 in)
1992	173.7 mm (6.8 in)
1993	225.6 mm (8.9 in)
1994	118.6 mm (4.7 in)
1995	265.4 mm (10.4 in)
1996	198.9 mm (7.8 in)
1997	208.6 mm (8.2 in)
1998	396.0 mm (15.6 in)
1999	196.6 mm (7.7 in)
2000	256.3 mm (10.1 in)
2001	158.0 mm (6.2 in)
2002	41.9 mm (1.6 in)
2003	260.9 mm (10.3 in)
2004	168.3 mm (6.6 in)
2005	271.6 mm (10.7 in)
2006	136.7 mm (5.4 in)
2007	199.2 mm (7.8 in)
2008	173.5 mm (6.8 in)
2009	84.0 mm (3.3 in)
2010	232.4 mm (9.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at E.T.Arroyo 107 Petatlan, 1975 to 2010. The record is 159 days in 2008, marked on the chart; the median year is 116 days.

Longest dry spell (CDD) at E.T.Arroyo 107 Petatlan by year
Year	Longest dry spell (CDD)
1975	65 days
1976	151 days
1977	70 days
1978	111 days
1979	153 days
1980	122 days
1981	135 days
1982	135 days
1983	87 days
1984	132 days
1985	111 days
1986	121 days
1987	92 days
1988	95 days
1989	151 days
1990	91 days
1991	61 days
1992	36 days
1993	132 days
1994	141 days
1995	138 days
1996	146 days
1997	147 days
1998	155 days
1999	90 days
2000	121 days
2001	66 days
2002	77 days
2003	53 days
2004	75 days
2005	97 days
2006	146 days
2007	155 days
2008	159 days
2009	30 days
2010	109 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 E.T.Arroyo 107 Petatlan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for E.T.Arroyo 107 Petatlan 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).