Ciudad Aleman Weather Records (MXN00030025)

Record envelope, standing records and threshold days for Ciudad Aleman (MXN00030025), Mexico, with 61 years of record.

Key Facts for Ciudad Aleman

Ciudad Aleman (MXN00030025) is a weather station in Mexico at 18.18 latitude and -96.08 longitude, 35 m (114 ft) above sea level.
The station reports from 1951 to 2011, 61 years of record.
1,464 records set at Ciudad Aleman still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Ciudad Aleman tied a daily record high minimum temperature of 20.6 C (69.1 F) on 21 December 2011.

About the Station

Location: Mexico, 18.18 latitude, -96.08 longitude.
Elevation: 35 m (114 ft).
Period of record: 1951 to 2011, 61 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 Ciudad Aleman. 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 Ciudad Aleman, 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)	9.4 C (48.9 F)	n/a	n/a
Feb	39.4 C (102.9 F)	8.9 C (48.0 F)	n/a	n/a
Mar	42.2 C (108.0 F)	10.6 C (51.1 F)	n/a	n/a
Apr	45.6 C (114.1 F)	12.8 C (55.0 F)	n/a	n/a
May	45.0 C (113.0 F)	16.1 C (61.0 F)	n/a	n/a
Jun	44.4 C (111.9 F)	18.9 C (66.0 F)	n/a	n/a
Jul	40.0 C (104.0 F)	18.9 C (66.0 F)	n/a	n/a
Aug	38.3 C (100.9 F)	18.3 C (64.9 F)	n/a	n/a
Sep	38.9 C (102.0 F)	18.3 C (64.9 F)	n/a	n/a
Oct	36.7 C (98.1 F)	14.4 C (57.9 F)	n/a	n/a
Nov	36.7 C (98.1 F)	10.0 C (50.0 F)	n/a	n/a
Dec	35.0 C (95.0 F)	7.2 C (45.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ciudad Aleman still stand. 1974 holds the most, with 64.

Standing records at Ciudad Aleman by the year they were set
Year set	Standing records
1952	39
1953	29
1954	41
1955	31
1956	16
1957	28
1958	20
1959	33
1960	32
1961	16
1962	19
1963	46
1964	31
1965	43
1966	45
1967	31
1968	25
1969	31
1970	42
1971	32
1972	23
1973	30
1974	64
1975	27
1976	20
1977	18
1978	12
1979	23
1980	28
1981	8
1982	13
1983	17
1984	25
1985	11
1986	10
1987	17
1988	20
1989	14
1990	13
1991	42
1992	23
1993	17
1994	15
1995	24
1996	19
1997	41
1998	47
1999	16
2000	11
2001	12
2002	18
2003	21
2004	22
2005	13
2006	16
2007	14
2008	15
2009	16
2010	10
2011	29

All-Time Record Progression

7 new records

7 all-time records were set at Ciudad Aleman between 24 December 1989 and 22 August 2010. Each dot is a new record.

When Ciudad Aleman set new all-time records
Date	Kind	Detail
1989-12-24	Record low minimum temperature	Record low minimum temperature 8.3 C (46.9 F)
1989-12-25	Record low minimum temperature	Record low minimum temperature 7.2 C (45.0 F)
1991-06-04	Record high minimum temperature	Record high minimum temperature 27.8 C (82.0 F)
1994-04-27	Record high minimum temperature	Record high minimum temperature 28.9 C (84.0 F)
2005-06-21	Record daily precipitation	Record daily precipitation 264.4 mm (10.4 in)
2010-01-10	Record low maximum temperature	Record low maximum temperature 15.0 C (59.0 F)
2010-08-22	Record daily precipitation	Record daily precipitation 308.4 mm (12.1 in)

Wettest Day of Each Month

Aug: 308.4 mm (12.1 in)

The wettest day on record for each calendar month at Ciudad Aleman. The most was 308.4 mm (12.1 in) on 22 August 2010.

Record daily precipitation for each month at Ciudad Aleman
Month	Record daily precipitation (mm)	Date
Jan	75.4 mm (3.0 in)	31 January 1992
Feb	44.2 mm (1.7 in)	6 February 1975
Mar	100.3 mm (3.9 in)	11 March 2000
Apr	114.6 mm (4.5 in)	4 April 1993
May	157.7 mm (6.2 in)	29 May 1992
Jun	264.4 mm (10.4 in)	21 June 2005
Jul	183.1 mm (7.2 in)	6 July 1986
Aug	308.4 mm (12.1 in)	22 August 2010
Sep	169.7 mm (6.7 in)	22 September 1991
Oct	249.7 mm (9.8 in)	31 October 1959
Nov	149.1 mm (5.9 in)	20 November 1998
Dec	90.4 mm (3.6 in)	21 December 1964

Period of Record Coverage

1952 to 2011

60 years of record at Ciudad Aleman, 1952 to 2011. 4 years have data for under 90 percent of days and are left out of rankings: 1956, 1988, 1989, 2000.

Days with data per year at Ciudad Aleman
Year	Days with data	Share of year	Complete
1952	365	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	296	81%	No
1957	364	100%	Yes
1958	362	99%	Yes
1959	363	99%	Yes
1960	363	99%	Yes
1961	364	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	363	99%	Yes
1968	365	100%	Yes
1969	363	99%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	364	100%	Yes
1975	365	100%	Yes
1976	363	99%	Yes
1977	363	99%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	364	99%	Yes
1981	365	100%	Yes
1982	364	100%	Yes
1983	363	99%	Yes
1984	332	91%	Yes
1985	360	99%	Yes
1986	358	98%	Yes
1987	360	99%	Yes
1988	329	90%	No
1989	325	89%	No
1990	363	99%	Yes
1991	364	100%	Yes
1992	364	99%	Yes
1993	364	100%	Yes
1994	363	99%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	364	100%	Yes
1998	362	99%	Yes
1999	365	100%	Yes
2000	305	83%	No
2001	365	100%	Yes
2002	364	100%	Yes
2003	364	100%	Yes
2004	361	99%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	360	99%	Yes
2008	365	100%	Yes
2009	365	100%	Yes
2010	364	100%	Yes
2011	364	100%	Yes

Latest Records

Latest records at Ciudad Aleman
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 2011	Ciudad Aleman, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	20 years	3 of 100 (Routine)
27 November 2011	Ciudad Aleman, MX	daily low max	20.0 C (68.0 F)	1.1 C (2.0 F)	30 years	18 of 100 (Routine)
27 November 2011	Ciudad Aleman, MX	daily rain	6.4 mm (0.25 in)	0.3 mm (0.01 in)	4 years	7 of 100 (Routine)
28 September 2011	Ciudad Aleman, MX	daily high min	25.0 C (77.0 F)	1.1 C (2.0 F)	52 years	30 of 100 (Routine)
25 September 2011	Ciudad Aleman, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	48 years	5 of 100 (Routine)
12 September 2011	Ciudad Aleman, MX	daily low min	19.4 C (66.9 F)	1.2 C (2.2 F)	40 years	28 of 100 (Routine)
11 September 2011	Ciudad Aleman, MX	daily low min (Tie)	20.6 C (69.1 F)	tie	41 years	4 of 100 (Routine)
8 September 2011	Ciudad Aleman, MX	daily low max (Tie)	28.9 C (84.0 F)	tie	54 years	5 of 100 (Routine)
4 September 2011	Ciudad Aleman, MX	daily rain	109.0 mm (4.3 in)	13.2 mm (0.5 in)	16 years	16 of 100 (Routine)
21 August 2011	Ciudad Aleman, MX	daily rain	199.9 mm (7.9 in)	119.6 mm (4.7 in)	42 years	58 of 100 (Notable)
20 August 2011	Ciudad Aleman, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	40 years	4 of 100 (Routine)
14 August 2011	Ciudad Aleman, MX	daily high min (Tie)	23.9 C (75.0 F)	tie	46 years	5 of 100 (Routine)
13 August 2011	Ciudad Aleman, MX	daily high max (Tie)	36.7 C (98.1 F)	tie	8 years	2 of 100 (Routine)
12 August 2011	Ciudad Aleman, MX	daily high min	26.1 C (79.0 F)	1.1 C (2.0 F)	24 years	22 of 100 (Routine)
12 August 2011	Ciudad Aleman, MX	daily high max	36.7 C (98.1 F)	0.6 C (1.1 F)	8 years	10 of 100 (Routine)
11 August 2011	Ciudad Aleman, MX	daily high max	36.1 C (97.0 F)	0.5 C (0.9 F)	8 years	10 of 100 (Routine)
11 August 2011	Ciudad Aleman, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	56 years	5 of 100 (Routine)
10 August 2011	Ciudad Aleman, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	6 years	2 of 100 (Routine)
5 August 2011	Ciudad Aleman, MX	daily high max (Tie)	35.6 C (96.1 F)	tie	6 years	2 of 100 (Routine)
1 August 2011	Ciudad Aleman, MX	daily rain	94.0 mm (3.7 in)	44.2 mm (1.7 in)	13 years	27 of 100 (Routine)

Climate Trend

55 complete years, 1952 to 2011

One stripe for each of 55 complete years at Ciudad Aleman, 1952 to 2011. Blue stripes are years cooler than the station's own mean of 25.9 C (78.6 F); red stripes are warmer. The coolest year was 1966, at 24.4 C (75.9 F), and the warmest was 1998, at 27.2 C (80.9 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Ciudad Aleman as warming stripes, 1952 to 2011
Year	Annual mean temperature	Difference from the station mean
1952	24.9 C	-1.00 C
1953	25.5 C	-0.35 C
1954	25.0 C	-0.91 C
1955	25.6 C	-0.25 C
1957	25.9 C	+0.03 C
1958	25.7 C	-0.13 C
1959	25.5 C	-0.37 C
1960	25.7 C	-0.17 C
1961	25.8 C	-0.07 C
1962	26.1 C	+0.26 C
1963	26.5 C	+0.59 C
1964	26.4 C	+0.50 C
1965	25.9 C	-0.01 C
1966	24.4 C	-1.50 C
1967	25.0 C	-0.84 C
1968	24.9 C	-1.00 C
1969	25.4 C	-0.52 C
1970	25.1 C	-0.74 C
1971	25.8 C	-0.09 C
1972	25.9 C	+0.02 C
1973	25.7 C	-0.19 C
1974	25.6 C	-0.23 C
1975	26.2 C	+0.35 C
1976	24.9 C	-0.98 C
1977	25.6 C	-0.23 C
1978	25.0 C	-0.85 C
1979	24.9 C	-0.98 C
1980	25.4 C	-0.47 C
1981	25.3 C	-0.58 C
1982	26.0 C	+0.10 C
1983	26.0 C	+0.10 C
1985	25.8 C	-0.10 C
1986	25.8 C	-0.03 C
1987	25.2 C	-0.63 C
1990	26.1 C	+0.22 C
1991	26.8 C	+0.97 C
1992	26.1 C	+0.27 C
1993	26.6 C	+0.69 C
1994	26.6 C	+0.72 C
1995	27.0 C	+1.14 C
1996	26.2 C	+0.28 C
1997	26.4 C	+0.51 C
1998	27.2 C	+1.29 C
1999	26.3 C	+0.41 C
2001	26.1 C	+0.21 C
2002	26.4 C	+0.53 C
2003	26.5 C	+0.62 C
2004	26.4 C	+0.52 C
2005	26.4 C	+0.48 C
2006	26.3 C	+0.44 C
2007	26.5 C	+0.65 C
2008	26.2 C	+0.35 C
2009	26.6 C	+0.69 C
2010	25.5 C	-0.39 C
2011	26.8 C	+0.88 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1952 to 2011. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ciudad Aleman
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.5) per decade	1952 to 2011	55	Rise
Mean daily maximum	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.5) per decade	1952 to 2011	55	Rise
Mean daily minimum	0.3 C (0.2 to 0.3) per decade	0.5 F (0.3 to 0.6) per decade	1952 to 2011	55	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

1951 to 2011

Yearly extremes at Ciudad Aleman: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.6 C (114.1 F)	1963	41.1 C (106.0 F)	60
Coldest night (TNn)	7.2 C (45.0 F)	1989	11.7 C (53.1 F)	60
Wettest day (Rx1day)	308.4 mm (12.1 in)	2010	119.6 mm (4.7 in)	61
Wettest five days (Rx5day)	537.3 mm (21.2 in)	2010	231.7 mm (9.1 in)	61
Longest dry spell (CDD)	90 days	2011	32 days	61

Hottest day (TXx)

The hottest day of the year at Ciudad Aleman, 1951 to 2011. The record is 45.6 C (114.1 F) in 1963, marked on the chart; the median year is 41.1 C (106.0 F).

Hottest day (TXx) at Ciudad Aleman by year
Year	Hottest day (TXx)
1951	n/a
1952	40.0 C (104.0 F)
1953	42.2 C (108.0 F)
1954	40.0 C (104.0 F)
1955	41.1 C (106.0 F)
1956	40.0 C (104.0 F)
1957	41.7 C (107.1 F)
1958	40.0 C (104.0 F)
1959	38.9 C (102.0 F)
1960	40.0 C (104.0 F)
1961	42.2 C (108.0 F)
1962	41.7 C (107.1 F)
1963	45.6 C (114.1 F)
1964	43.3 C (109.9 F)
1965	40.6 C (105.1 F)
1966	38.9 C (102.0 F)
1967	42.2 C (108.0 F)
1968	40.0 C (104.0 F)
1969	42.2 C (108.0 F)
1970	41.7 C (107.1 F)
1971	41.7 C (107.1 F)
1972	40.6 C (105.1 F)
1973	42.2 C (108.0 F)
1974	43.3 C (109.9 F)
1975	42.8 C (109.0 F)
1976	40.0 C (104.0 F)
1977	40.0 C (104.0 F)
1978	41.7 C (107.1 F)
1979	40.0 C (104.0 F)
1980	41.7 C (107.1 F)
1981	40.0 C (104.0 F)
1982	40.0 C (104.0 F)
1983	41.7 C (107.1 F)
1984	41.7 C (107.1 F)
1985	40.0 C (104.0 F)
1986	40.0 C (104.0 F)
1987	41.7 C (107.1 F)
1988	41.7 C (107.1 F)
1989	40.0 C (104.0 F)
1990	40.6 C (105.1 F)
1991	41.7 C (107.1 F)
1992	36.7 C (98.1 F)
1993	41.1 C (106.0 F)
1994	40.6 C (105.1 F)
1995	42.8 C (109.0 F)
1996	40.6 C (105.1 F)
1997	40.6 C (105.1 F)
1998	44.4 C (111.9 F)
1999	45.0 C (113.0 F)
2000	38.9 C (102.0 F)
2001	40.0 C (104.0 F)
2002	41.7 C (107.1 F)
2003	43.3 C (109.9 F)
2004	40.0 C (104.0 F)
2005	43.9 C (111.0 F)
2006	41.7 C (107.1 F)
2007	40.6 C (105.1 F)
2008	41.7 C (107.1 F)
2009	41.1 C (106.0 F)
2010	40.0 C (104.0 F)
2011	44.4 C (111.9 F)

Coldest night (TNn)

The coldest night of the year at Ciudad Aleman, 1951 to 2011. The record is 7.2 C (45.0 F) in 1989, marked on the chart; the median year is 11.7 C (53.1 F).

Coldest night (TNn) at Ciudad Aleman by year
Year	Coldest night (TNn)
1951	n/a
1952	10.0 C (50.0 F)
1953	9.4 C (48.9 F)
1954	10.0 C (50.0 F)
1955	10.0 C (50.0 F)
1956	10.0 C (50.0 F)
1957	10.6 C (51.1 F)
1958	10.6 C (51.1 F)
1959	11.7 C (53.1 F)
1960	8.9 C (48.0 F)
1961	11.1 C (52.0 F)
1962	10.0 C (50.0 F)
1963	10.6 C (51.1 F)
1964	12.8 C (55.0 F)
1965	10.0 C (50.0 F)
1966	10.0 C (50.0 F)
1967	10.0 C (50.0 F)
1968	10.0 C (50.0 F)
1969	12.8 C (55.0 F)
1970	10.6 C (51.1 F)
1971	11.7 C (53.1 F)
1972	12.8 C (55.0 F)
1973	10.0 C (50.0 F)
1974	12.2 C (54.0 F)
1975	13.9 C (57.0 F)
1976	10.0 C (50.0 F)
1977	10.6 C (51.1 F)
1978	11.7 C (53.1 F)
1979	10.6 C (51.1 F)
1980	11.7 C (53.1 F)
1981	13.3 C (55.9 F)
1982	13.3 C (55.9 F)
1983	10.0 C (50.0 F)
1984	13.9 C (57.0 F)
1985	11.1 C (52.0 F)
1986	10.6 C (51.1 F)
1987	11.7 C (53.1 F)
1988	12.2 C (54.0 F)
1989	7.2 C (45.0 F)
1990	13.9 C (57.0 F)
1991	13.9 C (57.0 F)
1992	13.9 C (57.0 F)
1993	12.8 C (55.0 F)
1994	14.4 C (57.9 F)
1995	15.0 C (59.0 F)
1996	10.0 C (50.0 F)
1997	9.4 C (48.9 F)
1998	12.8 C (55.0 F)
1999	11.7 C (53.1 F)
2000	13.9 C (57.0 F)
2001	12.8 C (55.0 F)
2002	12.2 C (54.0 F)
2003	12.8 C (55.0 F)
2004	12.8 C (55.0 F)
2005	13.9 C (57.0 F)
2006	11.7 C (53.1 F)
2007	13.3 C (55.9 F)
2008	11.7 C (53.1 F)
2009	12.2 C (54.0 F)
2010	10.0 C (50.0 F)
2011	10.6 C (51.1 F)

Wettest day (Rx1day)

The wettest day of the year at Ciudad Aleman, 1951 to 2011. The record is 308.4 mm (12.1 in) in 2010, marked on the chart; the median year is 119.6 mm (4.7 in).

Wettest day (Rx1day) at Ciudad Aleman by year
Year	Wettest day (Rx1day)
1951	77.5 mm (3.1 in)
1952	144.3 mm (5.7 in)
1953	100.8 mm (4.0 in)
1954	93.0 mm (3.7 in)
1955	177.5 mm (7.0 in)
1956	99.1 mm (3.9 in)
1957	127.0 mm (5.0 in)
1958	135.4 mm (5.3 in)
1959	249.7 mm (9.8 in)
1960	154.2 mm (6.1 in)
1961	102.4 mm (4.0 in)
1962	103.4 mm (4.1 in)
1963	112.8 mm (4.4 in)
1964	90.4 mm (3.6 in)
1965	185.4 mm (7.3 in)
1966	137.4 mm (5.4 in)
1967	88.9 mm (3.5 in)
1968	127.5 mm (5.0 in)
1969	123.7 mm (4.9 in)
1970	179.3 mm (7.1 in)
1971	119.6 mm (4.7 in)
1972	106.9 mm (4.2 in)
1973	126.7 mm (5.0 in)
1974	73.4 mm (2.9 in)
1975	146.8 mm (5.8 in)
1976	99.8 mm (3.9 in)
1977	99.8 mm (3.9 in)
1978	150.4 mm (5.9 in)
1979	182.6 mm (7.2 in)
1980	126.0 mm (5.0 in)
1981	118.1 mm (4.6 in)
1982	110.7 mm (4.4 in)
1983	96.5 mm (3.8 in)
1984	137.9 mm (5.4 in)
1985	143.8 mm (5.7 in)
1986	183.1 mm (7.2 in)
1987	118.1 mm (4.6 in)
1988	115.1 mm (4.5 in)
1989	96.5 mm (3.8 in)
1990	118.1 mm (4.6 in)
1991	169.7 mm (6.7 in)
1992	157.7 mm (6.2 in)
1993	185.2 mm (7.3 in)
1994	116.6 mm (4.6 in)
1995	143.5 mm (5.6 in)
1996	97.8 mm (3.9 in)
1997	85.6 mm (3.4 in)
1998	149.1 mm (5.9 in)
1999	90.7 mm (3.6 in)
2000	126.2 mm (5.0 in)
2001	105.7 mm (4.2 in)
2002	113.3 mm (4.5 in)
2003	115.1 mm (4.5 in)
2004	97.3 mm (3.8 in)
2005	264.4 mm (10.4 in)
2006	133.1 mm (5.2 in)
2007	157.7 mm (6.2 in)
2008	113.8 mm (4.5 in)
2009	116.1 mm (4.6 in)
2010	308.4 mm (12.1 in)
2011	199.9 mm (7.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ciudad Aleman, 1951 to 2011. The record is 537.3 mm (21.2 in) in 2010, marked on the chart; the median year is 231.7 mm (9.1 in).

Wettest five days (Rx5day) at Ciudad Aleman by year
Year	Wettest five days (Rx5day)
1951	189.6 mm (7.5 in)
1952	339.7 mm (13.4 in)
1953	232.6 mm (9.2 in)
1954	272.4 mm (10.7 in)
1955	307.5 mm (12.1 in)
1956	174.1 mm (6.9 in)
1957	212.3 mm (8.4 in)
1958	351.5 mm (13.8 in)
1959	274.6 mm (10.8 in)
1960	314.8 mm (12.4 in)
1961	270.0 mm (10.6 in)
1962	225.3 mm (8.9 in)
1963	189.2 mm (7.4 in)
1964	139.5 mm (5.5 in)
1965	236.0 mm (9.3 in)
1966	351.7 mm (13.8 in)
1967	155.3 mm (6.1 in)
1968	240.0 mm (9.4 in)
1969	348.6 mm (13.7 in)
1970	238.7 mm (9.4 in)
1971	194.2 mm (7.6 in)
1972	181.4 mm (7.1 in)
1973	243.7 mm (9.6 in)
1974	210.3 mm (8.3 in)
1975	290.3 mm (11.4 in)
1976	175.3 mm (6.9 in)
1977	164.6 mm (6.5 in)
1978	215.7 mm (8.5 in)
1979	263.4 mm (10.4 in)
1980	216.2 mm (8.5 in)
1981	302.1 mm (11.9 in)
1982	245.3 mm (9.7 in)
1983	159.8 mm (6.3 in)
1984	213.4 mm (8.4 in)
1985	240.1 mm (9.5 in)
1986	320.7 mm (12.6 in)
1987	222.0 mm (8.7 in)
1988	278.8 mm (11.0 in)
1989	163.1 mm (6.4 in)
1990	227.2 mm (8.9 in)
1991	279.7 mm (11.0 in)
1992	278.4 mm (11.0 in)
1993	314.8 mm (12.4 in)
1994	214.4 mm (8.4 in)
1995	228.6 mm (9.0 in)
1996	135.9 mm (5.4 in)
1997	155.0 mm (6.1 in)
1998	279.9 mm (11.0 in)
1999	194.2 mm (7.6 in)
2000	168.9 mm (6.6 in)
2001	264.9 mm (10.4 in)
2002	170.2 mm (6.7 in)
2003	184.0 mm (7.2 in)
2004	204.2 mm (8.0 in)
2005	449.1 mm (17.7 in)
2006	268.3 mm (10.6 in)
2007	306.6 mm (12.1 in)
2008	231.7 mm (9.1 in)
2009	220.5 mm (8.7 in)
2010	537.3 mm (21.2 in)
2011	210.4 mm (8.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ciudad Aleman, 1951 to 2011. The record is 90 days in 2011, marked on the chart; the median year is 32 days.

Longest dry spell (CDD) at Ciudad Aleman by year
Year	Longest dry spell (CDD)
1951	45 days
1952	31 days
1953	53 days
1954	30 days
1955	30 days
1956	31 days
1957	34 days
1958	23 days
1959	21 days
1960	26 days
1961	59 days
1962	34 days
1963	37 days
1964	23 days
1965	32 days
1966	33 days
1967	35 days
1968	25 days
1969	29 days
1970	37 days
1971	39 days
1972	22 days
1973	35 days
1974	30 days
1975	29 days
1976	34 days
1977	33 days
1978	33 days
1979	26 days
1980	37 days
1981	29 days
1982	35 days
1983	39 days
1984	25 days
1985	32 days
1986	25 days
1987	52 days
1988	44 days
1989	26 days
1990	29 days
1991	52 days
1992	23 days
1993	25 days
1994	26 days
1995	26 days
1996	32 days
1997	27 days
1998	43 days
1999	27 days
2000	25 days
2001	30 days
2002	49 days
2003	63 days
2004	20 days
2005	48 days
2006	30 days
2007	49 days
2008	42 days
2009	55 days
2010	39 days
2011	90 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

60 years, 1951 to 2011

A day with at least 122.1 mm (4.8 in) of rain is expected about once in 2 years. A day with at least 306.4 mm (12.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Ciudad Aleman: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	122.1 mm (4.8 in)
5 years	158.6 mm (6.2 in)
10 years	187.1 mm (7.4 in)
25 years	229.3 mm (9.0 in)
50 years	265.5 mm (10.5 in)
100 years	306.4 mm (12.1 in)	Longer than the 60 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, 60 years of values from 1951 to 2011.

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: 308.4 mm (12.1 in) in 2010; 264.4 mm (10.4 in) in 2005; 249.7 mm (9.8 in) in 1959.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Ciudad Aleman, at 1966. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1966 ran 0.5 C (1.0 F) lower than in the years before (likely change).

Suspected changes in the annual mean temperature at Ciudad Aleman, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1966	-0.5	-1.0	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 Ciudad Aleman standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ciudad Aleman 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).