Tancochapa Weather Records (MXN00030167)

Record envelope, standing records and threshold days for Tancochapa (MXN00030167), Mexico, with 64 years of record.

Key Facts for Tancochapa

Tancochapa (MXN00030167) is a weather station in Mexico at 17.87 latitude and -94.08 longitude, 13 m (42 ft) above sea level.
The station reports from 1948 to 2011, 64 years of record.
1,464 records set at Tancochapa still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Tancochapa set a daily record precipitation of 32.8 mm (1.3 in) on 26 December 2011.

About the Station

Location: Mexico, 17.87 latitude, -94.08 longitude.
Elevation: 13 m (42 ft).
Period of record: 1948 to 2011, 64 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 Tancochapa. 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 Tancochapa, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.6 C (96.1 F)	9.4 C (48.9 F)	n/a	n/a
Feb	37.8 C (100.0 F)	8.9 C (48.0 F)	n/a	n/a
Mar	41.7 C (107.1 F)	11.1 C (52.0 F)	n/a	n/a
Apr	42.8 C (109.0 F)	10.6 C (51.1 F)	n/a	n/a
May	45.0 C (113.0 F)	12.8 C (55.0 F)	n/a	n/a
Jun	45.0 C (113.0 F)	15.0 C (59.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	18.3 C (64.9 F)	n/a	n/a
Aug	39.4 C (102.9 F)	16.7 C (62.1 F)	n/a	n/a
Sep	40.0 C (104.0 F)	15.6 C (60.1 F)	n/a	n/a
Oct	38.3 C (100.9 F)	13.9 C (57.0 F)	n/a	n/a
Nov	37.8 C (100.0 F)	10.6 C (51.1 F)	n/a	n/a
Dec	36.7 C (98.1 F)	9.4 C (48.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tancochapa still stand. 2008 holds the most, with 48.

Standing records at Tancochapa by the year they were set
Year set	Standing records
1948	15
1949	25
1950	21
1951	32
1952	41
1953	30
1954	43
1955	26
1956	32
1957	27
1958	21
1959	25
1960	21
1961	19
1962	18
1963	16
1964	16
1965	15
1966	29
1967	13
1968	20
1969	17
1970	30
1971	32
1972	16
1973	23
1974	15
1975	15
1976	22
1977	17
1978	8
1981	2
1982	31
1983	18
1984	23
1985	4
1987	21
1988	29
1989	30
1990	26
1991	39
1992	38
1993	18
1994	41
1995	18
1996	25
1997	38
1998	36
1999	15
2000	19
2001	25
2002	33
2003	34
2004	16
2005	17
2006	10
2007	11
2008	48
2009	29
2010	31
2011	39

All-Time Record Progression

5 new records

5 all-time records were set at Tancochapa between 27 April 1991 and 27 September 2000. Each dot is a new record.

When Tancochapa set new all-time records
Date	Kind	Detail
1991-04-27	Record high maximum temperature	Record high maximum temperature 42.8 C (109.0 F)
1995-05-14	Record high maximum temperature	Record high maximum temperature 43.3 C (109.9 F)
1995-05-15	Record high maximum temperature	Record high maximum temperature 45.0 C (113.0 F)
1995-05-16	Record high minimum temperature	Record high minimum temperature 28.9 C (84.0 F)
2000-09-27	Record daily precipitation	Record daily precipitation 300.0 mm (11.8 in)

Wettest Day of Each Month

Sep: 300.0 mm (11.8 in)

The wettest day on record for each calendar month at Tancochapa. The most was 300.0 mm (11.8 in) on 27 September 2000.

Record daily precipitation for each month at Tancochapa
Month	Record daily precipitation (mm)	Date
Jan	158.8 mm (6.3 in)	12 January 2011
Feb	113.8 mm (4.5 in)	4 February 2007
Mar	99.8 mm (3.9 in)	23 March 2006
Apr	104.4 mm (4.1 in)	21 April 1982
May	163.8 mm (6.4 in)	3 May 1954
Jun	105.9 mm (4.2 in)	13 June 1996
Jul	145.8 mm (5.7 in)	2 July 1964
Aug	164.3 mm (6.5 in)	17 August 2004
Sep	300.0 mm (11.8 in)	27 September 2000
Oct	197.9 mm (7.8 in)	14 October 1969
Nov	270.3 mm (10.6 in)	3 November 2009
Dec	161.8 mm (6.4 in)	10 December 2004

Period of Record Coverage

1948 to 2011

61 years of record at Tancochapa, 1948 to 2011. 7 years have data for under 90 percent of days and are left out of rankings: 1948, 1949, 1978, 1981, 1983, 1985, 1987.

Days with data per year at Tancochapa
Year	Days with data	Share of year	Complete
1948	91	25%	No
1949	264	72%	No
1950	364	100%	Yes
1951	363	99%	Yes
1952	334	91%	Yes
1953	337	92%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	365	100%	Yes
1957	364	100%	Yes
1958	363	99%	Yes
1959	364	100%	Yes
1960	366	100%	Yes
1961	363	99%	Yes
1962	364	100%	Yes
1963	363	99%	Yes
1964	365	100%	Yes
1965	363	99%	Yes
1966	364	100%	Yes
1967	364	100%	Yes
1968	364	99%	Yes
1969	363	99%	Yes
1970	363	99%	Yes
1971	360	99%	Yes
1972	365	100%	Yes
1973	361	99%	Yes
1974	364	100%	Yes
1975	365	100%	Yes
1976	364	99%	Yes
1977	365	100%	Yes
1978	119	33%	No
1981	160	44%	No
1982	363	99%	Yes
1983	243	67%	No
1984	363	99%	Yes
1985	179	49%	No
1987	270	74%	No
1988	333	91%	Yes
1989	330	90%	Yes
1990	364	100%	Yes
1991	363	99%	Yes
1992	365	100%	Yes
1993	364	100%	Yes
1994	364	100%	Yes
1995	362	99%	Yes
1996	336	92%	Yes
1997	364	100%	Yes
1998	363	99%	Yes
1999	364	100%	Yes
2000	365	100%	Yes
2001	332	91%	Yes
2002	361	99%	Yes
2003	364	100%	Yes
2004	366	100%	Yes
2005	364	100%	Yes
2006	363	99%	Yes
2007	360	99%	Yes
2008	366	100%	Yes
2009	364	100%	Yes
2010	365	100%	Yes
2011	364	100%	Yes

Latest Records

Latest records at Tancochapa
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 December 2011	Tancochapa, MX	daily rain	32.8 mm (1.3 in)	3.3 mm (0.13 in)	9 years	9 of 100 (Routine)
7 December 2011	Tancochapa, MX	daily rain	98.3 mm (3.9 in)	34.8 mm (1.4 in)	52 years	36 of 100 (Notable)
5 December 2011	Tancochapa, MX	daily low min (Tie)	13.9 C (57.0 F)	tie	52 years	5 of 100 (Routine)
3 December 2011	Tancochapa, MX	daily low min (Tie)	13.9 C (57.0 F)	tie	2 years	1 of 100 (Routine)
2 December 2011	Tancochapa, MX	daily low min (Tie)	13.9 C (57.0 F)	tie	53 years	5 of 100 (Routine)
1 December 2011	Tancochapa, MX	daily low min	12.8 C (55.0 F)	1.6 C (2.9 F)	53 years	28 of 100 (Routine)
30 November 2011	Tancochapa, MX	daily low min (Tie)	11.7 C (53.1 F)	tie	44 years	4 of 100 (Routine)
29 November 2011	Tancochapa, MX	daily low min	12.2 C (54.0 F)	2.8 C (5.0 F)	54 years	34 of 100 (Routine)
13 November 2011	Tancochapa, MX	daily low min	12.2 C (54.0 F)	1.7 C (3.1 F)	42 years	25 of 100 (Routine)
12 November 2011	Tancochapa, MX	daily low min	11.7 C (53.1 F)	3.3 C (5.9 F)	20 years	27 of 100 (Routine)
11 November 2011	Tancochapa, MX	daily low min	13.9 C (57.0 F)	1.7 C (3.1 F)	57 years	30 of 100 (Routine)
8 October 2011	Tancochapa, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	28 years	3 of 100 (Routine)
28 September 2011	Tancochapa, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	52 years	5 of 100 (Routine)
26 September 2011	Tancochapa, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	34 years	4 of 100 (Routine)
23 September 2011	Tancochapa, MX	daily low min	20.0 C (68.0 F)	0.6 C (1.1 F)	40 years	23 of 100 (Routine)
22 September 2011	Tancochapa, MX	daily low min	20.0 C (68.0 F)	1.1 C (2.0 F)	56 years	32 of 100 (Routine)
15 September 2011	Tancochapa, MX	daily low min (Tie)	20.6 C (69.1 F)	tie	54 years	5 of 100 (Routine)
14 September 2011	Tancochapa, MX	daily rain	168.4 mm (6.6 in)	93.0 mm (3.7 in)	33 years	50 of 100 (Notable)
14 September 2011	Tancochapa, MX	daily low min (Tie)	20.6 C (69.1 F)	tie	57 years	5 of 100 (Routine)
13 September 2011	Tancochapa, MX	daily low min (Tie)	20.6 C (69.1 F)	tie	56 years	5 of 100 (Routine)

Climate Trend

48 complete years, 1950 to 2011

One stripe for each of 48 complete years at Tancochapa, 1950 to 2011. Blue stripes are years cooler than the station's own mean of 25.8 C (78.4 F); red stripes are warmer. The coolest year was 1954, at 24.2 C (75.6 F), and the warmest was 1994, at 27.0 C (80.6 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Tancochapa as warming stripes, 1950 to 2011
Year	Annual mean temperature	Difference from the station mean
1950	25.7 C	-0.09 C
1951	25.5 C	-0.28 C
1954	24.2 C	-1.54 C
1955	24.8 C	-0.95 C
1956	24.6 C	-1.21 C
1957	25.4 C	-0.39 C
1958	24.8 C	-0.97 C
1959	24.6 C	-1.14 C
1960	25.0 C	-0.76 C
1961	25.1 C	-0.67 C
1962	25.5 C	-0.29 C
1963	25.5 C	-0.31 C
1964	25.7 C	-0.13 C
1965	25.8 C	+0.06 C
1966	25.3 C	-0.45 C
1967	25.6 C	-0.20 C
1968	25.5 C	-0.28 C
1969	25.9 C	+0.11 C
1970	25.4 C	-0.34 C
1971	25.6 C	-0.17 C
1972	26.5 C	+0.67 C
1973	26.3 C	+0.49 C
1974	25.8 C	-0.01 C
1975	26.3 C	+0.48 C
1976	25.2 C	-0.62 C
1977	25.9 C	+0.16 C
1982	26.2 C	+0.39 C
1984	25.5 C	-0.32 C
1990	26.4 C	+0.66 C
1991	26.7 C	+0.92 C
1992	26.2 C	+0.38 C
1993	26.5 C	+0.73 C
1994	27.0 C	+1.22 C
1995	26.6 C	+0.83 C
1997	26.1 C	+0.33 C
1998	26.8 C	+1.00 C
1999	25.9 C	+0.13 C
2000	26.1 C	+0.35 C
2002	26.9 C	+1.14 C
2003	26.8 C	+1.00 C
2004	25.5 C	-0.30 C
2005	26.3 C	+0.49 C
2006	26.1 C	+0.36 C
2007	26.1 C	+0.34 C
2008	25.1 C	-0.69 C
2009	25.7 C	-0.13 C
2010	25.6 C	-0.17 C
2011	26.1 C	+0.28 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1950 to 2011. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Tancochapa
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	1950 to 2011	48	Rise
Mean daily maximum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.7) per decade	1950 to 2011	48	Rise
Mean daily minimum	0.1 C (0.1 to 0.2) per decade	0.2 F (0.1 to 0.4) per decade	1950 to 2011	48	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

1948 to 2011

Yearly extremes at Tancochapa: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.0 C (113.0 F)	1995	40.0 C (104.0 F)	61
Coldest night (TNn)	8.9 C (48.0 F)	1954	11.7 C (53.1 F)	61
Wettest day (Rx1day)	300.0 mm (11.8 in)	2000	134.9 mm (5.3 in)	61
Wettest five days (Rx5day)	747.7 mm (29.4 in)	2009	232.9 mm (9.2 in)	61
Longest dry spell (CDD)	62 days	1998	29 days	61

Hottest day (TXx)

The hottest day of the year at Tancochapa, 1948 to 2011. The record is 45.0 C (113.0 F) in 1995, marked on the chart; the median year is 40.0 C (104.0 F).

Hottest day (TXx) at Tancochapa by year
Year	Hottest day (TXx)
1948	37.8 C (100.0 F)
1949	39.4 C (102.9 F)
1950	40.0 C (104.0 F)
1951	40.0 C (104.0 F)
1952	38.3 C (100.9 F)
1953	40.0 C (104.0 F)
1954	36.7 C (98.1 F)
1955	41.7 C (107.1 F)
1956	40.0 C (104.0 F)
1957	40.0 C (104.0 F)
1958	37.8 C (100.0 F)
1959	36.1 C (97.0 F)
1960	39.4 C (102.9 F)
1961	39.4 C (102.9 F)
1962	38.9 C (102.0 F)
1963	37.8 C (100.0 F)
1964	41.1 C (106.0 F)
1965	39.4 C (102.9 F)
1966	38.9 C (102.0 F)
1967	40.0 C (104.0 F)
1968	40.0 C (104.0 F)
1969	42.2 C (108.0 F)
1970	41.7 C (107.1 F)
1971	41.1 C (106.0 F)
1972	40.0 C (104.0 F)
1973	41.7 C (107.1 F)
1974	40.0 C (104.0 F)
1975	41.7 C (107.1 F)
1976	39.4 C (102.9 F)
1977	40.0 C (104.0 F)
1978	37.8 C (100.0 F)
1981	35.0 C (95.0 F)
1982	39.4 C (102.9 F)
1983	39.4 C (102.9 F)
1984	41.1 C (106.0 F)
1985	39.4 C (102.9 F)
1987	38.3 C (100.9 F)
1988	40.0 C (104.0 F)
1989	39.4 C (102.9 F)
1990	40.0 C (104.0 F)
1991	42.8 C (109.0 F)
1992	40.0 C (104.0 F)
1993	40.0 C (104.0 F)
1994	41.7 C (107.1 F)
1995	45.0 C (113.0 F)
1996	38.9 C (102.0 F)
1997	38.9 C (102.0 F)
1998	45.0 C (113.0 F)
1999	40.6 C (105.1 F)
2000	40.6 C (105.1 F)
2001	40.0 C (104.0 F)
2002	41.7 C (107.1 F)
2003	43.9 C (111.0 F)
2004	38.3 C (100.9 F)
2005	41.7 C (107.1 F)
2006	42.2 C (108.0 F)
2007	40.6 C (105.1 F)
2008	45.0 C (113.0 F)
2009	41.7 C (107.1 F)
2010	41.7 C (107.1 F)
2011	42.8 C (109.0 F)

Coldest night (TNn)

The coldest night of the year at Tancochapa, 1948 to 2011. The record is 8.9 C (48.0 F) in 1954, marked on the chart; the median year is 11.7 C (53.1 F).

Coldest night (TNn) at Tancochapa by year
Year	Coldest night (TNn)
1948	15.0 C (59.0 F)
1949	12.2 C (54.0 F)
1950	12.8 C (55.0 F)
1951	10.0 C (50.0 F)
1952	12.2 C (54.0 F)
1953	11.7 C (53.1 F)
1954	8.9 C (48.0 F)
1955	11.1 C (52.0 F)
1956	10.6 C (51.1 F)
1957	10.6 C (51.1 F)
1958	10.6 C (51.1 F)
1959	13.3 C (55.9 F)
1960	10.0 C (50.0 F)
1961	12.2 C (54.0 F)
1962	9.4 C (48.9 F)
1963	9.4 C (48.9 F)
1964	11.7 C (53.1 F)
1965	11.7 C (53.1 F)
1966	10.0 C (50.0 F)
1967	11.1 C (52.0 F)
1968	10.6 C (51.1 F)
1969	13.3 C (55.9 F)
1970	10.6 C (51.1 F)
1971	10.6 C (51.1 F)
1972	10.6 C (51.1 F)
1973	11.7 C (53.1 F)
1974	11.7 C (53.1 F)
1975	13.9 C (57.0 F)
1976	10.6 C (51.1 F)
1977	11.7 C (53.1 F)
1978	11.1 C (52.0 F)
1981	15.0 C (59.0 F)
1982	12.2 C (54.0 F)
1983	11.7 C (53.1 F)
1984	12.2 C (54.0 F)
1985	13.9 C (57.0 F)
1987	10.0 C (50.0 F)
1988	10.6 C (51.1 F)
1989	11.1 C (52.0 F)
1990	12.8 C (55.0 F)
1991	11.7 C (53.1 F)
1992	15.0 C (59.0 F)
1993	15.0 C (59.0 F)
1994	13.9 C (57.0 F)
1995	13.9 C (57.0 F)
1996	11.7 C (53.1 F)
1997	10.0 C (50.0 F)
1998	12.8 C (55.0 F)
1999	10.0 C (50.0 F)
2000	12.8 C (55.0 F)
2001	13.3 C (55.9 F)
2002	12.8 C (55.0 F)
2003	13.9 C (57.0 F)
2004	12.8 C (55.0 F)
2005	12.8 C (55.0 F)
2006	11.7 C (53.1 F)
2007	13.9 C (57.0 F)
2008	13.3 C (55.9 F)
2009	13.9 C (57.0 F)
2010	10.6 C (51.1 F)
2011	11.7 C (53.1 F)

Wettest day (Rx1day)

The wettest day of the year at Tancochapa, 1948 to 2011. The record is 300.0 mm (11.8 in) in 2000, marked on the chart; the median year is 134.9 mm (5.3 in).

Wettest day (Rx1day) at Tancochapa by year
Year	Wettest day (Rx1day)
1948	89.9 mm (3.5 in)
1949	102.1 mm (4.0 in)
1950	91.2 mm (3.6 in)
1951	128.0 mm (5.0 in)
1952	140.5 mm (5.5 in)
1953	139.4 mm (5.5 in)
1954	163.8 mm (6.4 in)
1955	157.0 mm (6.2 in)
1956	147.8 mm (5.8 in)
1957	82.8 mm (3.3 in)
1958	139.7 mm (5.5 in)
1959	83.3 mm (3.3 in)
1960	111.8 mm (4.4 in)
1961	99.1 mm (3.9 in)
1962	111.8 mm (4.4 in)
1963	90.4 mm (3.6 in)
1964	145.8 mm (5.7 in)
1965	137.9 mm (5.4 in)
1966	174.0 mm (6.9 in)
1967	94.5 mm (3.7 in)
1968	152.4 mm (6.0 in)
1969	197.9 mm (7.8 in)
1970	100.1 mm (3.9 in)
1971	84.8 mm (3.3 in)
1972	101.3 mm (4.0 in)
1973	134.9 mm (5.3 in)
1974	143.8 mm (5.7 in)
1975	126.0 mm (5.0 in)
1976	111.5 mm (4.4 in)
1977	218.9 mm (8.6 in)
1978	32.0 mm (1.3 in)
1981	100.1 mm (3.9 in)
1982	109.2 mm (4.3 in)
1983	106.7 mm (4.2 in)
1984	122.9 mm (4.8 in)
1985	80.8 mm (3.2 in)
1987	159.8 mm (6.3 in)
1988	152.9 mm (6.0 in)
1989	149.9 mm (5.9 in)
1990	133.9 mm (5.3 in)
1991	159.8 mm (6.3 in)
1992	104.9 mm (4.1 in)
1993	91.9 mm (3.6 in)
1994	140.0 mm (5.5 in)
1995	159.8 mm (6.3 in)
1996	105.9 mm (4.2 in)
1997	88.9 mm (3.5 in)
1998	180.8 mm (7.1 in)
1999	140.0 mm (5.5 in)
2000	300.0 mm (11.8 in)
2001	218.7 mm (8.6 in)
2002	96.3 mm (3.8 in)
2003	76.5 mm (3.0 in)
2004	174.5 mm (6.9 in)
2005	181.4 mm (7.1 in)
2006	158.0 mm (6.2 in)
2007	159.8 mm (6.3 in)
2008	183.9 mm (7.2 in)
2009	270.3 mm (10.6 in)
2010	121.4 mm (4.8 in)
2011	168.4 mm (6.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tancochapa, 1948 to 2011. The record is 747.7 mm (29.4 in) in 2009, marked on the chart; the median year is 232.9 mm (9.2 in).

Wettest five days (Rx5day) at Tancochapa by year
Year	Wettest five days (Rx5day)
1948	199.9 mm (7.9 in)
1949	173.0 mm (6.8 in)
1950	140.7 mm (5.5 in)
1951	247.1 mm (9.7 in)
1952	258.8 mm (10.2 in)
1953	332.4 mm (13.1 in)
1954	282.3 mm (11.1 in)
1955	402.4 mm (15.8 in)
1956	175.5 mm (6.9 in)
1957	200.9 mm (7.9 in)
1958	196.0 mm (7.7 in)
1959	165.6 mm (6.5 in)
1960	166.7 mm (6.6 in)
1961	248.5 mm (9.8 in)
1962	218.0 mm (8.6 in)
1963	219.2 mm (8.6 in)
1964	244.7 mm (9.6 in)
1965	232.9 mm (9.2 in)
1966	351.0 mm (13.8 in)
1967	256.0 mm (10.1 in)
1968	224.8 mm (8.9 in)
1969	323.4 mm (12.7 in)
1970	225.3 mm (8.9 in)
1971	167.7 mm (6.6 in)
1972	213.0 mm (8.4 in)
1973	310.6 mm (12.2 in)
1974	268.5 mm (10.6 in)
1975	285.7 mm (11.2 in)
1976	181.4 mm (7.1 in)
1977	362.6 mm (14.3 in)
1978	76.0 mm (3.0 in)
1981	207.4 mm (8.2 in)
1982	232.4 mm (9.1 in)
1983	165.4 mm (6.5 in)
1984	204.5 mm (8.1 in)
1985	143.8 mm (5.7 in)
1987	219.5 mm (8.6 in)
1988	390.4 mm (15.4 in)
1989	305.1 mm (12.0 in)
1990	175.6 mm (6.9 in)
1991	316.5 mm (12.5 in)
1992	215.4 mm (8.5 in)
1993	199.5 mm (7.9 in)
1994	140.0 mm (5.5 in)
1995	248.7 mm (9.8 in)
1996	167.2 mm (6.6 in)
1997	205.5 mm (8.1 in)
1998	286.2 mm (11.3 in)
1999	381.0 mm (15.0 in)
2000	425.7 mm (16.8 in)
2001	405.5 mm (16.0 in)
2002	156.7 mm (6.2 in)
2003	203.7 mm (8.0 in)
2004	302.1 mm (11.9 in)
2005	261.7 mm (10.3 in)
2006	376.2 mm (14.8 in)
2007	486.0 mm (19.1 in)
2008	485.4 mm (19.1 in)
2009	747.7 mm (29.4 in)
2010	298.5 mm (11.8 in)
2011	284.4 mm (11.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tancochapa, 1948 to 2011. The record is 62 days in 1998, marked on the chart; the median year is 29 days.

Longest dry spell (CDD) at Tancochapa by year
Year	Longest dry spell (CDD)
1948	14 days
1949	38 days
1950	30 days
1951	29 days
1952	18 days
1953	26 days
1954	34 days
1955	37 days
1956	16 days
1957	26 days
1958	26 days
1959	18 days
1960	59 days
1961	35 days
1962	28 days
1963	23 days
1964	27 days
1965	37 days
1966	23 days
1967	37 days
1968	17 days
1969	18 days
1970	26 days
1971	35 days
1972	19 days
1973	35 days
1974	27 days
1975	37 days
1976	29 days
1977	31 days
1978	29 days
1981	12 days
1982	20 days
1983	15 days
1984	60 days
1985	36 days
1987	25 days
1988	34 days
1989	19 days
1990	16 days
1991	53 days
1992	24 days
1993	19 days
1994	50 days
1995	38 days
1996	19 days
1997	31 days
1998	62 days
1999	62 days
2000	29 days
2001	35 days
2002	34 days
2003	46 days
2004	19 days
2005	26 days
2006	36 days
2007	60 days
2008	23 days
2009	33 days
2010	44 days
2011	44 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

54 years, 1950 to 2011

A day with at least 132.3 mm (5.2 in) of rain is expected about once in 2 years. A day with at least 283.4 mm (11.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Tancochapa: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	132.3 mm (5.2 in)
5 years	172.1 mm (6.8 in)
10 years	198.7 mm (7.8 in)
25 years	232.6 mm (9.2 in)
50 years	258.0 mm (10.2 in)
100 years	283.4 mm (11.2 in)	Longer than the 54 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, 54 years of values from 1950 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: 300.0 mm (11.8 in) in 2000; 270.3 mm (10.6 in) in 2009; 218.9 mm (8.6 in) in 1977.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Tancochapa, at 2004. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 2004 ran 0.6 C (1.0 F) lower than in the years before (likely change).

Suspected changes in the annual mean temperature at Tancochapa, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
2004	-0.6	-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 Tancochapa standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tancochapa 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).