Chaucingo Weather Records (MXN00012030)

Record envelope, standing records and threshold days for Chaucingo (MXN00012030), Mexico, with 71 years of record.

Key Facts for Chaucingo

Chaucingo (MXN00012030) is a weather station in Mexico at 18.28 latitude and -99.12 longitude, 900 m (2,952 ft) above sea level.
The station reports from 1942 to 2012, 71 years of record.
1,464 records set at Chaucingo still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Chaucingo set a daily record precipitation of 69.9 mm (2.8 in) on 13 August 2012.

About the Station

Location: Mexico, 18.28 latitude, -99.12 longitude.
Elevation: 900 m (2,952 ft).
Period of record: 1942 to 2012, 71 years.
Eligible elements: 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 Chaucingo. 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 Chaucingo, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	41.7 C (107.1 F)	5.6 C (42.1 F)	n/a	n/a
Feb	41.7 C (107.1 F)	8.9 C (48.0 F)	n/a	n/a
Mar	45.0 C (113.0 F)	10.0 C (50.0 F)	n/a	n/a
Apr	43.9 C (111.0 F)	10.0 C (50.0 F)	n/a	n/a
May	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Jun	43.9 C (111.0 F)	10.0 C (50.0 F)	n/a	n/a
Jul	45.0 C (113.0 F)	10.0 C (50.0 F)	n/a	n/a
Aug	45.0 C (113.0 F)	7.8 C (46.0 F)	n/a	n/a
Sep	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Oct	40.6 C (105.1 F)	8.9 C (48.0 F)	n/a	n/a
Nov	38.9 C (102.0 F)	2.8 C (37.0 F)	n/a	n/a
Dec	40.6 C (105.1 F)	3.9 C (39.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Chaucingo still stand. 1996 holds the most, with 207.

Standing records at Chaucingo by the year they were set
Year set	Standing records
1987	125
1988	32
1989	6
1990	17
1991	12
1992	89
1995	30
1996	207
1997	101
1998	75
1999	32
2000	70
2001	100
2002	111
2003	25
2004	42
2005	40
2006	44
2007	95
2008	43
2009	26
2010	62
2011	47
2012	33

All-Time Record Progression

1 new records

1 all-time records were set at Chaucingo between 2 August 2012 and 2 August 2012. Each dot is a new record.

Wettest Day of Each Month

Aug: 115.8 mm (4.6 in)

The wettest day on record for each calendar month at Chaucingo. The most was 115.8 mm (4.6 in) on 2 August 2012.

Record daily precipitation for each month at Chaucingo
Month	Record daily precipitation (mm)	Date
Jan	89.9 mm (3.5 in)	4 January 1964
Feb	34.8 mm (1.4 in)	3 February 2010
Mar	95.0 mm (3.7 in)	22 March 1963
Apr	80.0 mm (3.1 in)	8 April 1968
May	89.9 mm (3.5 in)	16 May 1965
Jun	89.9 mm (3.5 in)	15 June 1965
Jul	97.3 mm (3.8 in)	31 July 1966
Aug	115.8 mm (4.6 in)	2 August 2012
Sep	97.3 mm (3.8 in)	21 September 1963
Oct	89.9 mm (3.5 in)	15 October 1962
Nov	74.9 mm (2.9 in)	11 November 1961
Dec	75.4 mm (3.0 in)	16 December 1947

Period of Record Coverage

1987 to 2012

24 years of record at Chaucingo, 1987 to 2012. 11 years have data for under 90 percent of days and are left out of rankings: 1987, 1988, 1989, 1990, 1991, 1992, 1995, 1997 and others.

Days with data per year at Chaucingo
Year	Days with data	Share of year	Complete
1987	223	61%	No
1988	319	87%	No
1989	29	8%	No
1990	273	75%	No
1991	251	69%	No
1992	201	55%	No
1995	238	65%	No
1996	337	92%	Yes
1997	318	87%	No
1998	344	94%	Yes
1999	236	65%	No
2000	366	100%	Yes
2001	362	99%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	153	42%	No
2005	272	75%	No
2006	350	96%	Yes
2007	365	100%	Yes
2008	331	90%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	335	92%	Yes

Latest Records

Latest records at Chaucingo
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 August 2012	Chaucingo, MX	daily rain	69.9 mm (2.8 in)	7.9 mm (0.31 in)	67 years	31 of 100 (Routine)
2 August 2012	Chaucingo, MX	all-time rain	115.8 mm (4.6 in)	18.5 mm (0.7 in)	48 years	51 of 100 (Notable)
25 June 2012	Chaucingo, MX	daily rain	61.5 mm (2.4 in)	13.7 mm (0.5 in)	25 years	22 of 100 (Routine)
7 June 2012	Chaucingo, MX	daily rain	67.8 mm (2.7 in)	34.5 mm (1.4 in)	63 years	46 of 100 (Notable)
5 June 2012	Chaucingo, MX	daily rain (Tie)	39.9 mm (1.6 in)	tie	14 years	2 of 100 (Routine)
9 May 2012	Chaucingo, MX	daily rain	48.8 mm (1.9 in)	35.3 mm (1.4 in)	49 years	43 of 100 (Notable)
24 March 2012	Chaucingo, MX	daily rain	23.9 mm (0.9 in)	23.9 mm (0.9 in)	69 years	20 of 100 (Routine)
25 February 2012	Chaucingo, MX	daily rain	9.9 mm (0.39 in)	6.6 mm (0.26 in)	53 years	20 of 100 (Routine)
13 October 2011	Chaucingo, MX	daily rain	48.8 mm (1.9 in)	3.8 mm (0.15 in)	40 years	21 of 100 (Routine)
10 October 2011	Chaucingo, MX	daily rain	43.9 mm (1.7 in)	16.0 mm (0.6 in)	9 years	18 of 100 (Routine)
1 July 2011	Chaucingo, MX	daily rain	85.9 mm (3.4 in)	51.6 mm (2.0 in)	12 years	38 of 100 (Notable)
6 June 2011	Chaucingo, MX	daily rain	72.9 mm (2.9 in)	3.0 mm (0.12 in)	29 years	16 of 100 (Routine)
29 May 2011	Chaucingo, MX	daily rain	36.8 mm (1.4 in)	21.8 mm (0.9 in)	60 years	38 of 100 (Notable)
21 April 2011	Chaucingo, MX	daily rain	27.9 mm (1.1 in)	18.0 mm (0.7 in)	54 years	34 of 100 (Routine)
15 April 2011	Chaucingo, MX	daily rain	20.1 mm (0.8 in)	4.6 mm (0.18 in)	42 years	20 of 100 (Routine)
3 November 2010	Chaucingo, MX	monthly rain (Tie)	74.9 mm (2.9 in)	tie	48 years	7 of 100 (Routine)
2 November 2010	Chaucingo, MX	daily rain	14.0 mm (0.6 in)	7.1 mm (0.28 in)	32 years	19 of 100 (Routine)
11 September 2010	Chaucingo, MX	daily rain	89.9 mm (3.5 in)	25.1 mm (1.0 in)	0 years	21 of 100 (Routine)
4 September 2010	Chaucingo, MX	daily rain	69.9 mm (2.8 in)	30.0 mm (1.2 in)	52 years	39 of 100 (Notable)
1 September 2010	Chaucingo, MX	daily rain	64.8 mm (2.6 in)	26.4 mm (1.0 in)	61 years	39 of 100 (Notable)

Extremes by Year

1942 to 2012

Yearly extremes at Chaucingo: 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)	1996	36.7 C (98.1 F)	24
Coldest night (TNn)	2.8 C (37.0 F)	2006	8.9 C (48.0 F)	24
Wettest day (Rx1day)	115.8 mm (4.6 in)	2012	64.3 mm (2.5 in)	68
Wettest five days (Rx5day)	304.6 mm (12.0 in)	1961	119.1 mm (4.7 in)	68
Longest dry spell (CDD)	148 days	1970	79 days	68

Hottest day (TXx)

The hottest day of the year at Chaucingo, 1942 to 2012. The record is 45.0 C (113.0 F) in 1996, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Chaucingo by year
Year	Hottest day (TXx)
1942	n/a
1943	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	43.9 C (111.0 F)
1988	36.7 C (98.1 F)
1989	27.8 C (82.0 F)
1990	36.7 C (98.1 F)
1991	33.9 C (93.0 F)
1992	32.8 C (91.0 F)
1995	40.6 C (105.1 F)
1996	45.0 C (113.0 F)
1997	43.9 C (111.0 F)
1998	41.7 C (107.1 F)
1999	33.3 C (91.9 F)
2000	37.8 C (100.0 F)
2001	41.7 C (107.1 F)
2002	33.9 C (93.0 F)
2003	40.0 C (104.0 F)
2004	28.9 C (84.0 F)
2005	39.4 C (102.9 F)
2006	41.7 C (107.1 F)
2007	37.8 C (100.0 F)
2008	35.0 C (95.0 F)
2009	33.9 C (93.0 F)
2010	33.9 C (93.0 F)
2011	32.8 C (91.0 F)
2012	31.7 C (89.1 F)

Coldest night (TNn)

The coldest night of the year at Chaucingo, 1942 to 2012. The record is 2.8 C (37.0 F) in 2006, marked on the chart; the median year is 8.9 C (48.0 F).

Coldest night (TNn) at Chaucingo by year
Year	Coldest night (TNn)
1942	n/a
1943	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	10.6 C (51.1 F)
1988	11.7 C (53.1 F)
1989	13.9 C (57.0 F)
1990	13.9 C (57.0 F)
1991	12.8 C (55.0 F)
1992	13.9 C (57.0 F)
1995	12.8 C (55.0 F)
1996	11.7 C (53.1 F)
1997	10.0 C (50.0 F)
1998	8.9 C (48.0 F)
1999	10.0 C (50.0 F)
2000	8.9 C (48.0 F)
2001	7.8 C (46.0 F)
2002	4.4 C (39.9 F)
2003	5.0 C (41.0 F)
2004	6.7 C (44.1 F)
2005	5.6 C (42.1 F)
2006	2.8 C (37.0 F)
2007	8.9 C (48.0 F)
2008	5.6 C (42.1 F)
2009	6.7 C (44.1 F)
2010	3.9 C (39.0 F)
2011	5.0 C (41.0 F)
2012	8.9 C (48.0 F)

Wettest day (Rx1day)

The wettest day of the year at Chaucingo, 1942 to 2012. The record is 115.8 mm (4.6 in) in 2012, marked on the chart; the median year is 64.3 mm (2.5 in).

Wettest day (Rx1day) at Chaucingo by year
Year	Wettest day (Rx1day)
1942	29.0 mm (1.1 in)
1943	59.9 mm (2.4 in)
1945	67.8 mm (2.7 in)
1946	69.9 mm (2.8 in)
1947	75.4 mm (3.0 in)
1948	51.8 mm (2.0 in)
1949	43.9 mm (1.7 in)
1950	68.8 mm (2.7 in)
1951	54.9 mm (2.2 in)
1952	46.5 mm (1.8 in)
1953	86.9 mm (3.4 in)
1954	69.9 mm (2.8 in)
1955	45.0 mm (1.8 in)
1956	70.4 mm (2.8 in)
1957	51.8 mm (2.0 in)
1958	57.9 mm (2.3 in)
1959	48.3 mm (1.9 in)
1960	46.5 mm (1.8 in)
1961	95.0 mm (3.7 in)
1962	89.9 mm (3.5 in)
1963	97.3 mm (3.8 in)
1964	95.0 mm (3.7 in)
1965	95.0 mm (3.7 in)
1966	97.3 mm (3.8 in)
1967	95.0 mm (3.7 in)
1968	95.0 mm (3.7 in)
1969	71.1 mm (2.8 in)
1970	79.8 mm (3.1 in)
1971	63.0 mm (2.5 in)
1972	77.5 mm (3.1 in)
1973	64.8 mm (2.6 in)
1974	63.8 mm (2.5 in)
1975	79.8 mm (3.1 in)
1976	59.9 mm (2.4 in)
1977	74.9 mm (2.9 in)
1978	95.0 mm (3.7 in)
1979	86.4 mm (3.4 in)
1980	54.9 mm (2.2 in)
1981	82.3 mm (3.2 in)
1982	65.8 mm (2.6 in)
1983	41.9 mm (1.6 in)
1984	34.8 mm (1.4 in)
1985	69.9 mm (2.8 in)
1986	74.9 mm (2.9 in)
1987	49.8 mm (2.0 in)
1988	47.8 mm (1.9 in)
1989	0.0 mm (0.00 in)
1990	59.4 mm (2.3 in)
1991	39.9 mm (1.6 in)
1992	34.8 mm (1.4 in)
1995	54.9 mm (2.2 in)
1996	35.8 mm (1.4 in)
1997	31.5 mm (1.2 in)
1998	43.4 mm (1.7 in)
1999	17.8 mm (0.7 in)
2000	63.0 mm (2.5 in)
2001	53.8 mm (2.1 in)
2002	65.8 mm (2.6 in)
2003	58.9 mm (2.3 in)
2004	63.5 mm (2.5 in)
2005	36.8 mm (1.4 in)
2006	64.8 mm (2.6 in)
2007	41.9 mm (1.6 in)
2008	84.8 mm (3.3 in)
2009	95.0 mm (3.7 in)
2010	89.9 mm (3.5 in)
2011	85.9 mm (3.4 in)
2012	115.8 mm (4.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Chaucingo, 1942 to 2012. The record is 304.6 mm (12.0 in) in 1961, marked on the chart; the median year is 119.1 mm (4.7 in).

Wettest five days (Rx5day) at Chaucingo by year
Year	Wettest five days (Rx5day)
1942	66.8 mm (2.6 in)
1943	182.3 mm (7.2 in)
1945	80.3 mm (3.2 in)
1946	86.7 mm (3.4 in)
1947	99.7 mm (3.9 in)
1948	127.3 mm (5.0 in)
1949	99.6 mm (3.9 in)
1950	93.6 mm (3.7 in)
1951	78.5 mm (3.1 in)
1952	88.2 mm (3.5 in)
1953	189.6 mm (7.5 in)
1954	111.3 mm (4.4 in)
1955	111.0 mm (4.4 in)
1956	122.5 mm (4.8 in)
1957	109.7 mm (4.3 in)
1958	128.9 mm (5.1 in)
1959	89.7 mm (3.5 in)
1960	56.4 mm (2.2 in)
1961	304.6 mm (12.0 in)
1962	196.9 mm (7.8 in)
1963	288.8 mm (11.4 in)
1964	193.8 mm (7.6 in)
1965	296.6 mm (11.7 in)
1966	202.2 mm (8.0 in)
1967	177.0 mm (7.0 in)
1968	172.5 mm (6.8 in)
1969	120.0 mm (4.7 in)
1970	147.9 mm (5.8 in)
1971	82.8 mm (3.3 in)
1972	137.2 mm (5.4 in)
1973	133.9 mm (5.3 in)
1974	153.3 mm (6.0 in)
1975	118.2 mm (4.7 in)
1976	124.3 mm (4.9 in)
1977	130.1 mm (5.1 in)
1978	173.4 mm (6.8 in)
1979	130.6 mm (5.1 in)
1980	103.1 mm (4.1 in)
1981	154.8 mm (6.1 in)
1982	168.4 mm (6.6 in)
1983	58.7 mm (2.3 in)
1984	107.2 mm (4.2 in)
1985	110.2 mm (4.3 in)
1986	173.5 mm (6.8 in)
1987	80.9 mm (3.2 in)
1988	133.8 mm (5.3 in)
1989	0.0 mm (0.00 in)
1990	78.4 mm (3.1 in)
1991	92.8 mm (3.7 in)
1992	88.0 mm (3.5 in)
1995	72.7 mm (2.9 in)
1996	102.7 mm (4.0 in)
1997	50.5 mm (2.0 in)
1998	100.6 mm (4.0 in)
1999	29.7 mm (1.2 in)
2000	94.5 mm (3.7 in)
2001	98.2 mm (3.9 in)
2002	146.8 mm (5.8 in)
2003	157.0 mm (6.2 in)
2004	88.6 mm (3.5 in)
2005	64.1 mm (2.5 in)
2006	132.6 mm (5.2 in)
2007	78.8 mm (3.1 in)
2008	137.9 mm (5.4 in)
2009	229.4 mm (9.0 in)
2010	250.4 mm (9.9 in)
2011	219.3 mm (8.6 in)
2012	204.5 mm (8.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Chaucingo, 1942 to 2012. The record is 148 days in 1970, marked on the chart; the median year is 79 days.

Longest dry spell (CDD) at Chaucingo by year
Year	Longest dry spell (CDD)
1942	62 days
1943	140 days
1945	125 days
1946	86 days
1947	63 days
1948	66 days
1949	128 days
1950	128 days
1951	77 days
1952	69 days
1953	141 days
1954	56 days
1955	90 days
1956	78 days
1957	126 days
1958	78 days
1959	117 days
1960	144 days
1961	142 days
1962	102 days
1963	79 days
1964	66 days
1965	68 days
1966	81 days
1967	47 days
1968	40 days
1969	113 days
1970	148 days
1971	78 days
1972	106 days
1973	96 days
1974	71 days
1975	106 days
1976	60 days
1977	56 days
1978	43 days
1979	53 days
1980	72 days
1981	61 days
1982	81 days
1983	52 days
1984	106 days
1985	136 days
1986	70 days
1987	79 days
1988	87 days
1989	31 days
1990	101 days
1991	54 days
1992	57 days
1995	79 days
1996	67 days
1997	76 days
1998	146 days
1999	129 days
2000	139 days
2001	78 days
2002	60 days
2003	87 days
2004	61 days
2005	140 days
2006	59 days
2007	86 days
2008	118 days
2009	61 days
2010	96 days
2011	100 days
2012	55 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, 1943 to 2012

A day with at least 65.6 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 115.0 mm (4.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Chaucingo: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	65.6 mm (2.6 in)
5 years	83.4 mm (3.3 in)
10 years	93.1 mm (3.7 in)
25 years	103.2 mm (4.1 in)
50 years	109.6 mm (4.3 in)
100 years	115.0 mm (4.5 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 1943 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: 115.8 mm (4.6 in) in 2012; 97.3 mm (3.8 in) in 1963; 97.3 mm (3.8 in) in 1966.

Download the Data

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