El Puerto Weather Records (MXN00016043)

Record envelope, standing records and threshold days for El Puerto (MXN00016043), Mexico, with 65 years of record.

Key Facts for El Puerto

El Puerto (MXN00016043) is a weather station in Mexico at 19.80 latitude and -102.67 longitude, 1,640 m (5,380 ft) above sea level.
The station reports from 1943 to 2007, 65 years of record.
1,464 records set at El Puerto still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
El Puerto tied a daily record high maximum temperature of 26.7 C (80.1 F) on 23 August 2007.

About the Station

Location: Mexico, 19.80 latitude, -102.67 longitude.
Elevation: 1,640 m (5,380 ft).
Period of record: 1943 to 2007, 65 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 El Puerto. 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 El Puerto, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.0 C (86.0 F)	-6.1 C (21.0 F)	n/a	n/a
Feb	31.7 C (89.1 F)	-4.4 C (24.1 F)	n/a	n/a
Mar	35.0 C (95.0 F)	-3.3 C (26.1 F)	n/a	n/a
Apr	35.6 C (96.1 F)	0.6 C (33.1 F)	n/a	n/a
May	37.8 C (100.0 F)	1.7 C (35.1 F)	n/a	n/a
Jun	35.6 C (96.1 F)	6.7 C (44.1 F)	n/a	n/a
Jul	32.8 C (91.0 F)	8.3 C (46.9 F)	n/a	n/a
Aug	28.9 C (84.0 F)	7.8 C (46.0 F)	n/a	n/a
Sep	29.4 C (84.9 F)	3.9 C (39.0 F)	n/a	n/a
Oct	30.0 C (86.0 F)	0.0 C (32.0 F)	n/a	n/a
Nov	33.9 C (93.0 F)	-3.3 C (26.1 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-5.0 C (23.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at El Puerto still stand. 1997 holds the most, with 79.

Standing records at El Puerto by the year they were set
Year set	Standing records
1950	19
1951	39
1952	33
1953	22
1954	16
1955	20
1956	34
1957	14
1958	26
1959	27
1960	17
1961	19
1962	21
1963	18
1964	12
1965	19
1966	12
1967	25
1968	39
1969	17
1970	18
1971	24
1972	11
1973	26
1974	25
1975	23
1976	26
1977	13
1978	10
1979	26
1980	9
1981	24
1982	58
1983	69
1984	11
1985	17
1986	33
1987	54
1988	63
1989	31
1990	17
1991	41
1992	33
1993	16
1994	6
1995	38
1996	28
1997	79
1998	39
1999	21
2000	13
2002	24
2003	20
2004	24
2005	17
2006	20
2007	8

All-Time Record Progression

5 new records

5 all-time records were set at El Puerto between 8 October 1976 and 27 May 2006. Each dot is a new record.

When El Puerto set new all-time records
Date	Kind	Detail
1976-10-08	Record daily precipitation	Record daily precipitation 80.0 mm (3.1 in)
1982-05-26	Record high maximum temperature	Record high maximum temperature 37.8 C (100.0 F)
1982-05-29	Record high minimum temperature	Record high minimum temperature 18.9 C (66.0 F)
1982-06-20	Record high minimum temperature	Record high minimum temperature 20.0 C (68.0 F)
2006-05-27	Record daily precipitation	Record daily precipitation 84.8 mm (3.3 in)

Wettest Day of Each Month

May: 84.8 mm (3.3 in)

The wettest day on record for each calendar month at El Puerto. The most was 84.8 mm (3.3 in) on 27 May 2006.

Record daily precipitation for each month at El Puerto
Month	Record daily precipitation (mm)	Date
Jan	74.9 mm (2.9 in)	25 January 1992
Feb	31.0 mm (1.2 in)	11 February 2002
Mar	58.2 mm (2.3 in)	4 March 1968
Apr	35.3 mm (1.4 in)	15 April 1959
May	84.8 mm (3.3 in)	27 May 2006
Jun	77.5 mm (3.1 in)	24 June 1950
Jul	69.9 mm (2.8 in)	24 July 2006
Aug	78.0 mm (3.1 in)	22 August 1980
Sep	51.3 mm (2.0 in)	2 September 1961
Oct	80.0 mm (3.1 in)	8 October 1976
Nov	69.1 mm (2.7 in)	18 November 1976
Dec	43.4 mm (1.7 in)	15 December 1963

Period of Record Coverage

1950 to 2007

57 years of record at El Puerto, 1950 to 2007. 9 years have data for under 90 percent of days and are left out of rankings: 1952, 1964, 1969, 1972, 1979, 1981, 1982, 1996 and others.

Days with data per year at El Puerto
Year	Days with data	Share of year	Complete
1950	365	100%	Yes
1951	333	91%	Yes
1952	306	84%	No
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	359	98%	Yes
1958	365	100%	Yes
1959	363	99%	Yes
1960	365	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	334	92%	Yes
1964	275	75%	No
1965	365	100%	Yes
1966	334	92%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	244	67%	No
1970	365	100%	Yes
1971	365	100%	Yes
1972	305	83%	No
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	364	100%	Yes
1979	182	50%	No
1980	366	100%	Yes
1981	304	83%	No
1982	316	87%	No
1983	365	100%	Yes
1984	335	92%	Yes
1985	365	100%	Yes
1986	362	99%	Yes
1987	334	92%	Yes
1988	363	99%	Yes
1989	364	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	336	92%	Yes
1993	334	92%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	305	83%	No
1997	365	100%	Yes
1998	364	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2002	365	100%	Yes
2003	364	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	243	67%	No

Latest Records

Latest records at El Puerto
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 August 2007	El Puerto, MX	daily high max (Tie)	26.7 C (80.1 F)	tie	24 years	3 of 100 (Routine)
10 August 2007	El Puerto, MX	monthly high max (Tie)	28.9 C (84.0 F)	tie	21 years	5 of 100 (Routine)
2 August 2007	El Puerto, MX	daily rain	26.9 mm (1.1 in)	2.5 mm (0.10 in)	57 years	25 of 100 (Routine)
18 July 2007	El Puerto, MX	daily low max	17.8 C (64.0 F)	2.8 C (5.0 F)	32 years	27 of 100 (Routine)
4 July 2007	El Puerto, MX	daily rain	63.0 mm (2.5 in)	21.6 mm (0.9 in)	56 years	47 of 100 (Notable)
27 May 2007	El Puerto, MX	daily low min	8.9 C (48.0 F)	1.1 C (2.0 F)	38 years	20 of 100 (Routine)
29 April 2007	El Puerto, MX	daily low max (Tie)	25.0 C (77.0 F)	tie	41 years	4 of 100 (Routine)
20 April 2007	El Puerto, MX	daily high min	15.0 C (59.0 F)	1.1 C (2.0 F)	54 years	25 of 100 (Routine)
3 April 2007	El Puerto, MX	daily high min (Tie)	13.9 C (57.0 F)	tie	9 years	1 of 100 (Routine)
2 April 2007	El Puerto, MX	daily high min	13.9 C (57.0 F)	1.1 C (2.0 F)	4 years	10 of 100 (Routine)
4 February 2007	El Puerto, MX	daily rain	4.8 mm (0.19 in)	4.5 mm (0.18 in)	51 years	20 of 100 (Routine)
29 January 2007	El Puerto, MX	daily rain	17.8 mm (0.7 in)	15.0 mm (0.6 in)	15 years	19 of 100 (Routine)
26 January 2007	El Puerto, MX	daily high min	11.7 C (53.1 F)	0.6 C (1.1 F)	15 years	10 of 100 (Routine)
25 January 2007	El Puerto, MX	daily high min (Tie)	11.7 C (53.1 F)	tie	12 years	2 of 100 (Routine)
24 January 2007	El Puerto, MX	daily high min	11.7 C (53.1 F)	1.1 C (2.0 F)	1 year	8 of 100 (Routine)
22 January 2007	El Puerto, MX	daily high min (Tie)	10.0 C (50.0 F)	tie	27 years	3 of 100 (Routine)
18 January 2007	El Puerto, MX	daily high max (Tie)	26.7 C (80.1 F)	tie	4 years	1 of 100 (Routine)
9 January 2007	El Puerto, MX	daily high min (Tie)	10.6 C (51.1 F)	tie	15 years	2 of 100 (Routine)
4 January 2007	El Puerto, MX	daily high min	11.7 C (53.1 F)	1.1 C (2.0 F)	4 years	9 of 100 (Routine)
24 December 2006	El Puerto, MX	daily high min	10.6 C (51.1 F)	0.6 C (1.1 F)	29 years	14 of 100 (Routine)

Climate Trend

41 complete years, 1950 to 2006

One stripe for each of 41 complete years at El Puerto, 1950 to 2006. Blue stripes are years cooler than the station's own mean of 17.6 C (63.7 F); red stripes are warmer. The coolest year was 1968, at 16.2 C (61.1 F), and the warmest was 1998, at 19.2 C (66.6 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at El Puerto as warming stripes, 1950 to 2006
Year	Annual mean temperature	Difference from the station mean
1950	16.7 C	-0.91 C
1953	17.1 C	-0.54 C
1954	17.1 C	-0.51 C
1955	16.8 C	-0.83 C
1956	16.5 C	-1.11 C
1957	17.2 C	-0.41 C
1958	16.9 C	-0.72 C
1959	16.7 C	-0.94 C
1960	17.0 C	-0.62 C
1961	16.7 C	-0.91 C
1962	17.0 C	-0.63 C
1965	16.8 C	-0.82 C
1967	16.3 C	-1.30 C
1968	16.2 C	-1.45 C
1970	16.5 C	-1.08 C
1971	16.4 C	-1.26 C
1973	16.5 C	-1.09 C
1974	16.5 C	-1.13 C
1975	16.3 C	-1.29 C
1976	16.4 C	-1.17 C
1977	16.6 C	-1.03 C
1978	16.7 C	-0.95 C
1980	17.1 C	-0.52 C
1983	17.8 C	+0.19 C
1985	18.3 C	+0.69 C
1986	18.4 C	+0.83 C
1988	19.0 C	+1.35 C
1989	18.8 C	+1.18 C
1990	18.9 C	+1.24 C
1991	18.9 C	+1.28 C
1994	18.6 C	+1.02 C
1995	18.8 C	+1.14 C
1997	19.0 C	+1.36 C
1998	19.2 C	+1.62 C
1999	18.8 C	+1.23 C
2000	18.7 C	+1.10 C
2002	19.0 C	+1.43 C
2003	19.0 C	+1.34 C
2004	18.7 C	+1.08 C
2005	19.2 C	+1.57 C
2006	19.1 C	+1.46 C

The annual mean temperature here has risen by 0.5 C (0.4 to 0.6) per decade over 1950 to 2006. In Fahrenheit: 1.0 F (0.8 to 1.2) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at El Puerto
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.5 C (0.4 to 0.6) per decade	1.0 F (0.8 to 1.2) per decade	1950 to 2006	41	Rise
Mean daily maximum	0.4 C (0.3 to 0.6) per decade	0.8 F (0.5 to 1.0) per decade	1950 to 2006	41	Rise
Mean daily minimum	0.6 C (0.5 to 0.8) per decade	1.2 F (0.9 to 1.4) per decade	1950 to 2006	41	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

1943 to 2007

Yearly extremes at El Puerto: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	1982	33.9 C (93.0 F)	57
Coldest night (TNn)	-6.1 C (21.0 F)	1955	-1.1 C (30.0 F)	57
Wettest day (Rx1day)	84.8 mm (3.3 in)	2006	44.8 mm (1.8 in)	64
Wettest five days (Rx5day)	189.4 mm (7.5 in)	2006	79.1 mm (3.1 in)	64
Longest dry spell (CDD)	166 days	1991	81 days	64

Hottest day (TXx)

The hottest day of the year at El Puerto, 1943 to 2007. The record is 37.8 C (100.0 F) in 1982, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at El Puerto by year
Year	Hottest day (TXx)
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	32.8 C (91.0 F)
1951	31.1 C (88.0 F)
1952	32.8 C (91.0 F)
1953	34.4 C (93.9 F)
1954	32.2 C (90.0 F)
1955	35.0 C (95.0 F)
1956	31.7 C (89.1 F)
1957	33.9 C (93.0 F)
1958	31.7 C (89.1 F)
1959	30.0 C (86.0 F)
1960	33.3 C (91.9 F)
1961	33.3 C (91.9 F)
1962	32.8 C (91.0 F)
1963	32.8 C (91.0 F)
1964	33.9 C (93.0 F)
1965	32.8 C (91.0 F)
1966	31.7 C (89.1 F)
1967	32.8 C (91.0 F)
1968	30.6 C (87.1 F)
1969	33.9 C (93.0 F)
1970	33.3 C (91.9 F)
1971	31.7 C (89.1 F)
1972	32.2 C (90.0 F)
1973	33.9 C (93.0 F)
1974	33.9 C (93.0 F)
1975	31.7 C (89.1 F)
1976	33.9 C (93.0 F)
1977	30.6 C (87.1 F)
1978	33.9 C (93.0 F)
1979	31.7 C (89.1 F)
1980	32.8 C (91.0 F)
1981	31.7 C (89.1 F)
1982	37.8 C (100.0 F)
1983	35.6 C (96.1 F)
1984	33.9 C (93.0 F)
1985	35.0 C (95.0 F)
1986	35.0 C (95.0 F)
1987	33.9 C (93.0 F)
1988	35.6 C (96.1 F)
1989	35.0 C (95.0 F)
1990	33.9 C (93.0 F)
1991	36.1 C (97.0 F)
1992	33.3 C (91.9 F)
1993	35.0 C (95.0 F)
1994	33.9 C (93.0 F)
1995	35.0 C (95.0 F)
1996	33.9 C (93.0 F)
1997	37.2 C (99.0 F)
1998	36.1 C (97.0 F)
1999	33.9 C (93.0 F)
2000	32.8 C (91.0 F)
2002	33.9 C (93.0 F)
2003	33.9 C (93.0 F)
2004	31.7 C (89.1 F)
2005	35.0 C (95.0 F)
2006	35.0 C (95.0 F)
2007	32.8 C (91.0 F)

Coldest night (TNn)

The coldest night of the year at El Puerto, 1943 to 2007. The record is -6.1 C (21.0 F) in 1955, marked on the chart; the median year is -1.1 C (30.0 F).

Coldest night (TNn) at El Puerto by year
Year	Coldest night (TNn)
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	-1.7 C (28.9 F)
1951	-1.1 C (30.0 F)
1952	0.0 C (32.0 F)
1953	-2.8 C (27.0 F)
1954	-2.8 C (27.0 F)
1955	-6.1 C (21.0 F)
1956	-5.0 C (23.0 F)
1957	-1.1 C (30.0 F)
1958	-0.6 C (30.9 F)
1959	0.0 C (32.0 F)
1960	-4.4 C (24.1 F)
1961	-1.7 C (28.9 F)
1962	-2.8 C (27.0 F)
1963	-2.2 C (28.0 F)
1964	-2.2 C (28.0 F)
1965	-1.1 C (30.0 F)
1966	-1.1 C (30.0 F)
1967	-3.3 C (26.1 F)
1968	-2.2 C (28.0 F)
1969	-1.7 C (28.9 F)
1970	-2.2 C (28.0 F)
1971	-2.8 C (27.0 F)
1972	-1.1 C (30.0 F)
1973	-3.3 C (26.1 F)
1974	-1.1 C (30.0 F)
1975	-5.0 C (23.0 F)
1976	-5.0 C (23.0 F)
1977	-1.1 C (30.0 F)
1978	0.0 C (32.0 F)
1979	-1.1 C (30.0 F)
1980	-2.2 C (28.0 F)
1981	-2.2 C (28.0 F)
1982	-3.3 C (26.1 F)
1983	-3.3 C (26.1 F)
1984	-3.3 C (26.1 F)
1985	0.6 C (33.1 F)
1986	0.6 C (33.1 F)
1987	0.0 C (32.0 F)
1988	-2.2 C (28.0 F)
1989	0.0 C (32.0 F)
1990	1.7 C (35.1 F)
1991	0.0 C (32.0 F)
1992	0.0 C (32.0 F)
1993	0.0 C (32.0 F)
1994	1.7 C (35.1 F)
1995	2.8 C (37.0 F)
1996	0.6 C (33.1 F)
1997	-1.1 C (30.0 F)
1998	0.6 C (33.1 F)
1999	0.6 C (33.1 F)
2000	2.8 C (37.0 F)
2002	1.7 C (35.1 F)
2003	2.8 C (37.0 F)
2004	-0.6 C (30.9 F)
2005	3.9 C (39.0 F)
2006	0.6 C (33.1 F)
2007	3.9 C (39.0 F)

Wettest day (Rx1day)

The wettest day of the year at El Puerto, 1943 to 2007. The record is 84.8 mm (3.3 in) in 2006, marked on the chart; the median year is 44.8 mm (1.8 in).

Wettest day (Rx1day) at El Puerto by year
Year	Wettest day (Rx1day)
1943	19.8 mm (0.8 in)
1944	45.0 mm (1.8 in)
1945	0.0 mm (0.00 in)
1946	20.1 mm (0.8 in)
1947	46.2 mm (1.8 in)
1948	27.2 mm (1.1 in)
1949	34.8 mm (1.4 in)
1950	77.5 mm (3.1 in)
1951	33.3 mm (1.3 in)
1952	63.5 mm (2.5 in)
1953	42.9 mm (1.7 in)
1954	44.5 mm (1.8 in)
1955	63.5 mm (2.5 in)
1956	42.4 mm (1.7 in)
1957	34.8 mm (1.4 in)
1958	47.8 mm (1.9 in)
1959	72.6 mm (2.9 in)
1960	32.0 mm (1.3 in)
1961	51.3 mm (2.0 in)
1962	40.9 mm (1.6 in)
1963	56.9 mm (2.2 in)
1964	52.3 mm (2.1 in)
1965	30.0 mm (1.2 in)
1966	54.1 mm (2.1 in)
1967	39.9 mm (1.6 in)
1968	58.2 mm (2.3 in)
1969	29.2 mm (1.1 in)
1970	44.2 mm (1.7 in)
1971	46.2 mm (1.8 in)
1972	52.6 mm (2.1 in)
1973	48.3 mm (1.9 in)
1974	44.5 mm (1.8 in)
1975	43.2 mm (1.7 in)
1976	80.0 mm (3.1 in)
1977	38.1 mm (1.5 in)
1978	54.9 mm (2.2 in)
1979	15.5 mm (0.6 in)
1980	78.0 mm (3.1 in)
1981	24.6 mm (1.0 in)
1982	57.2 mm (2.3 in)
1983	79.5 mm (3.1 in)
1984	47.5 mm (1.9 in)
1985	39.4 mm (1.6 in)
1986	45.7 mm (1.8 in)
1987	32.8 mm (1.3 in)
1988	35.3 mm (1.4 in)
1989	39.4 mm (1.6 in)
1990	53.8 mm (2.1 in)
1991	41.9 mm (1.6 in)
1992	74.9 mm (2.9 in)
1993	56.9 mm (2.2 in)
1994	37.8 mm (1.5 in)
1995	44.5 mm (1.8 in)
1996	36.3 mm (1.4 in)
1997	45.0 mm (1.8 in)
1998	36.8 mm (1.4 in)
1999	57.9 mm (2.3 in)
2000	61.0 mm (2.4 in)
2002	51.8 mm (2.0 in)
2003	49.8 mm (2.0 in)
2004	37.8 mm (1.5 in)
2005	42.9 mm (1.7 in)
2006	84.8 mm (3.3 in)
2007	63.0 mm (2.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at El Puerto, 1943 to 2007. The record is 189.4 mm (7.5 in) in 2006, marked on the chart; the median year is 79.1 mm (3.1 in).

Wettest five days (Rx5day) at El Puerto by year
Year	Wettest five days (Rx5day)
1943	46.2 mm (1.8 in)
1944	85.7 mm (3.4 in)
1945	0.0 mm (0.00 in)
1946	55.0 mm (2.2 in)
1947	77.2 mm (3.0 in)
1948	66.8 mm (2.6 in)
1949	44.5 mm (1.8 in)
1950	114.4 mm (4.5 in)
1951	65.6 mm (2.6 in)
1952	90.3 mm (3.6 in)
1953	78.1 mm (3.1 in)
1954	58.5 mm (2.3 in)
1955	110.1 mm (4.3 in)
1956	71.2 mm (2.8 in)
1957	50.0 mm (2.0 in)
1958	99.1 mm (3.9 in)
1959	98.8 mm (3.9 in)
1960	57.4 mm (2.3 in)
1961	72.5 mm (2.9 in)
1962	90.3 mm (3.6 in)
1963	115.9 mm (4.6 in)
1964	87.6 mm (3.4 in)
1965	64.0 mm (2.5 in)
1966	84.4 mm (3.3 in)
1967	109.0 mm (4.3 in)
1968	83.2 mm (3.3 in)
1969	62.6 mm (2.5 in)
1970	77.7 mm (3.1 in)
1971	64.8 mm (2.6 in)
1972	99.0 mm (3.9 in)
1973	71.7 mm (2.8 in)
1974	75.9 mm (3.0 in)
1975	109.2 mm (4.3 in)
1976	140.7 mm (5.5 in)
1977	66.7 mm (2.6 in)
1978	81.3 mm (3.2 in)
1979	27.5 mm (1.1 in)
1980	176.5 mm (6.9 in)
1981	54.1 mm (2.1 in)
1982	68.4 mm (2.7 in)
1983	118.6 mm (4.7 in)
1984	82.1 mm (3.2 in)
1985	82.5 mm (3.2 in)
1986	109.8 mm (4.3 in)
1987	67.6 mm (2.7 in)
1988	81.6 mm (3.2 in)
1989	80.0 mm (3.1 in)
1990	76.5 mm (3.0 in)
1991	89.4 mm (3.5 in)
1992	151.9 mm (6.0 in)
1993	76.4 mm (3.0 in)
1994	93.7 mm (3.7 in)
1995	98.1 mm (3.9 in)
1996	73.9 mm (2.9 in)
1997	67.1 mm (2.6 in)
1998	63.3 mm (2.5 in)
1999	90.6 mm (3.6 in)
2000	103.7 mm (4.1 in)
2002	114.3 mm (4.5 in)
2003	67.3 mm (2.6 in)
2004	70.8 mm (2.8 in)
2005	74.7 mm (2.9 in)
2006	189.4 mm (7.5 in)
2007	100.1 mm (3.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at El Puerto, 1943 to 2007. The record is 166 days in 1991, marked on the chart; the median year is 81 days.

Longest dry spell (CDD) at El Puerto by year
Year	Longest dry spell (CDD)
1943	13 days
1944	87 days
1945	31 days
1946	17 days
1947	103 days
1948	48 days
1949	70 days
1950	84 days
1951	64 days
1952	50 days
1953	141 days
1954	64 days
1955	132 days
1956	111 days
1957	80 days
1958	85 days
1959	92 days
1960	126 days
1961	91 days
1962	106 days
1963	59 days
1964	66 days
1965	67 days
1966	43 days
1967	93 days
1968	68 days
1969	56 days
1970	99 days
1971	69 days
1972	35 days
1973	46 days
1974	39 days
1975	111 days
1976	62 days
1977	48 days
1978	63 days
1979	84 days
1980	38 days
1981	46 days
1982	110 days
1983	72 days
1984	89 days
1985	70 days
1986	92 days
1987	45 days
1988	73 days
1989	94 days
1990	69 days
1991	166 days
1992	58 days
1993	101 days
1994	125 days
1995	108 days
1996	136 days
1997	66 days
1998	156 days
1999	82 days
2000	89 days
2002	84 days
2003	122 days
2004	56 days
2005	94 days
2006	109 days
2007	111 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

52 years, 1947 to 2006

A day with at least 46.4 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 97.7 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at El Puerto: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	46.4 mm (1.8 in)
5 years	59.4 mm (2.3 in)
10 years	68.3 mm (2.7 in)
25 years	79.9 mm (3.1 in)
50 years	88.7 mm (3.5 in)
100 years	97.7 mm (3.8 in)	Longer than the 52 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, 52 years of values from 1947 to 2006.

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: 84.8 mm (3.3 in) in 2006; 80.0 mm (3.1 in) in 1976; 79.5 mm (3.1 in) in 1983.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of El Puerto, at 1967 and 1983. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1967 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1983 ran 1.0 C (1.8 F) higher than in the years before (likely change).

Suspected changes in the annual mean temperature at El Puerto, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1967	-0.4	-0.7	likely	5
1983	+1.0	+1.8	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

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