Calipan Weather Records (MXN00021018)

Record envelope, standing records and threshold days for Calipan (MXN00021018), Mexico, with 47 years of record.

Key Facts for Calipan

Calipan (MXN00021018) is a weather station in Mexico at 18.28 latitude and -97.15 longitude, 1,131 m (3,710 ft) above sea level.
The station reports from 1963 to 2009, 47 years of record.
1,464 records set at Calipan still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Calipan tied a daily record low maximum temperature of 18.9 C (66.0 F) on 21 December 2009.

About the Station

Location: Mexico, 18.28 latitude, -97.15 longitude.
Elevation: 1,131 m (3,710 ft).
Period of record: 1963 to 2009, 47 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 Calipan. 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 Calipan, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.8 C (100.0 F)	2.8 C (37.0 F)	n/a	n/a
Feb	40.0 C (104.0 F)	2.8 C (37.0 F)	n/a	n/a
Mar	40.0 C (104.0 F)	5.0 C (41.0 F)	n/a	n/a
Apr	41.7 C (107.1 F)	6.7 C (44.1 F)	n/a	n/a
May	40.6 C (105.1 F)	8.9 C (48.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	5.6 C (42.1 F)	n/a	n/a
Jul	40.0 C (104.0 F)	8.9 C (48.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	10.0 C (50.0 F)	n/a	n/a
Sep	37.8 C (100.0 F)	5.6 C (42.1 F)	n/a	n/a
Oct	38.9 C (102.0 F)	5.6 C (42.1 F)	n/a	n/a
Nov	37.8 C (100.0 F)	5.0 C (41.0 F)	n/a	n/a
Dec	38.3 C (100.9 F)	0.6 C (33.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Calipan still stand. 1992 holds the most, with 174.

Standing records at Calipan by the year they were set
Year set	Standing records
1963	31
1964	111
1965	30
1966	58
1967	34
1968	57
1969	68
1970	14
1971	10
1972	27
1973	53
1974	10
1975	29
1976	18
1977	48
1978	23
1979	22
1980	17
1981	22
1982	9
1983	20
1984	19
1987	22
1988	36
1989	27
1990	25
1991	58
1992	174
1993	36
1994	7
1995	5
1996	83
1997	17
1998	27
1999	11
2000	8
2001	12
2002	12
2004	27
2005	41
2006	26
2007	24
2008	31
2009	25

All-Time Record Progression

1 new records

1 all-time records were set at Calipan between 13 April 2005 and 13 April 2005. Each dot is a new record.

Wettest Day of Each Month

Sep: 87.9 mm (3.5 in)

The wettest day on record for each calendar month at Calipan. The most was 87.9 mm (3.5 in) on 23 September 1974.

Record daily precipitation for each month at Calipan
Month	Record daily precipitation (mm)	Date
Jan	14.0 mm (0.6 in)	18 January 1969
Feb	17.8 mm (0.7 in)	1 February 1992
Mar	25.9 mm (1.0 in)	26 March 1992
Apr	54.4 mm (2.1 in)	26 April 1972
May	42.9 mm (1.7 in)	31 May 1964
Jun	64.8 mm (2.6 in)	5 June 1992
Jul	79.8 mm (3.1 in)	5 July 1993
Aug	51.1 mm (2.0 in)	4 August 1970
Sep	87.9 mm (3.5 in)	23 September 1974
Oct	53.3 mm (2.1 in)	20 October 1995
Nov	25.9 mm (1.0 in)	1 November 1977
Dec	25.4 mm (1.0 in)	31 December 1968

Period of Record Coverage

1963 to 2009

44 years of record at Calipan, 1963 to 2009. 10 years have data for under 90 percent of days and are left out of rankings: 1963, 1984, 1987, 1991, 1994, 1996, 1997, 1998 and others.

Days with data per year at Calipan
Year	Days with data	Share of year	Complete
1963	118	32%	No
1964	366	100%	Yes
1965	335	92%	Yes
1966	334	92%	Yes
1967	334	92%	Yes
1968	366	100%	Yes
1969	356	98%	Yes
1970	365	100%	Yes
1971	334	92%	Yes
1972	335	92%	Yes
1973	355	97%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	364	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	334	92%	Yes
1984	304	83%	No
1987	327	90%	No
1988	364	99%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	302	83%	No
1992	366	100%	Yes
1993	334	92%	Yes
1994	304	83%	No
1995	333	91%	Yes
1996	273	75%	No
1997	304	83%	No
1998	302	83%	No
1999	301	82%	No
2000	303	83%	No
2001	334	92%	Yes
2002	364	100%	Yes
2004	335	92%	Yes
2005	336	92%	Yes
2006	364	100%	Yes
2007	360	99%	Yes
2008	363	99%	Yes
2009	332	91%	Yes

Latest Records

Latest records at Calipan
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 2009	Calipan, MX	daily low max (Tie)	18.9 C (66.0 F)	tie	36 years	3 of 100 (Routine)
20 December 2009	Calipan, MX	daily low max (Tie)	18.9 C (66.0 F)	tie	36 years	3 of 100 (Routine)
19 December 2009	Calipan, MX	daily low max	18.9 C (66.0 F)	1.1 C (2.0 F)	34 years	17 of 100 (Routine)
25 November 2009	Calipan, MX	daily low max (Tie)	21.7 C (71.1 F)	tie	40 years	4 of 100 (Routine)
23 November 2009	Calipan, MX	daily high max (Tie)	35.6 C (96.1 F)	tie	42 years	4 of 100 (Routine)
4 November 2009	Calipan, MX	daily low max	20.6 C (69.1 F)	1.1 C (2.0 F)	39 years	18 of 100 (Routine)
3 November 2009	Calipan, MX	daily low max	20.6 C (69.1 F)	1.1 C (2.0 F)	12 years	10 of 100 (Routine)
31 October 2009	Calipan, MX	daily rain	14.0 mm (0.6 in)	6.1 mm (0.24 in)	7 years	12 of 100 (Routine)
31 October 2009	Calipan, MX	daily low max (Tie)	20.6 C (69.1 F)	tie	28 years	3 of 100 (Routine)
30 October 2009	Calipan, MX	daily high min	20.6 C (69.1 F)	1.7 C (3.1 F)	46 years	23 of 100 (Routine)
30 October 2009	Calipan, MX	daily rain	23.9 mm (0.9 in)	6.9 mm (0.27 in)	42 years	20 of 100 (Routine)
25 October 2009	Calipan, MX	daily high min	18.9 C (66.0 F)	0.6 C (1.1 F)	43 years	18 of 100 (Routine)
24 October 2009	Calipan, MX	daily high min (Tie)	18.9 C (66.0 F)	tie	40 years	4 of 100 (Routine)
18 October 2009	Calipan, MX	daily low max	18.9 C (66.0 F)	1.7 C (3.1 F)	12 years	12 of 100 (Routine)
13 October 2009	Calipan, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	32 years	3 of 100 (Routine)
10 October 2009	Calipan, MX	daily high min (Tie)	20.0 C (68.0 F)	tie	46 years	4 of 100 (Routine)
9 October 2009	Calipan, MX	daily high max	35.0 C (95.0 F)	1.1 C (2.0 F)	32 years	16 of 100 (Routine)
8 October 2009	Calipan, MX	daily high min (Tie)	18.9 C (66.0 F)	tie	43 years	4 of 100 (Routine)
6 October 2009	Calipan, MX	daily high max (Tie)	32.8 C (91.0 F)	tie	44 years	4 of 100 (Routine)
4 October 2009	Calipan, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	14 years	2 of 100 (Routine)

Climate Trend

22 complete years, 1964 to 2008

One stripe for each of 22 complete years at Calipan, 1964 to 2008. Blue stripes are years cooler than the station's own mean of 22.5 C (72.4 F); red stripes are warmer. The coolest year was 1992, at 18.1 C (64.5 F), and the warmest was 1964, at 24.9 C (76.9 F). The strongest colour marks a difference of 4.4 C (7.9 F).

Annual mean temperature at Calipan as warming stripes, 1964 to 2008
Year	Annual mean temperature	Difference from the station mean
1964	24.9 C	+2.48 C
1968	23.3 C	+0.80 C
1969	24.0 C	+1.52 C
1970	23.4 C	+0.97 C
1973	24.0 C	+1.55 C
1974	23.0 C	+0.49 C
1975	21.5 C	-1.00 C
1976	21.7 C	-0.77 C
1977	22.1 C	-0.38 C
1978	22.2 C	-0.23 C
1979	21.7 C	-0.77 C
1980	21.9 C	-0.56 C
1981	21.2 C	-1.28 C
1982	22.7 C	+0.24 C
1988	22.6 C	+0.09 C
1989	22.0 C	-0.47 C
1990	22.3 C	-0.15 C
1992	18.1 C	-4.40 C
2002	22.9 C	+0.41 C
2006	23.2 C	+0.74 C
2007	23.0 C	+0.56 C
2008	22.6 C	+0.15 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

1963 to 2009

Yearly extremes at Calipan: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.7 C (107.1 F)	2005	38.9 C (102.0 F)	44
Coldest night (TNn)	0.6 C (33.1 F)	1990	5.6 C (42.1 F)	44
Wettest day (Rx1day)	87.9 mm (3.5 in)	1974	38.2 mm (1.5 in)	44
Wettest five days (Rx5day)	236.7 mm (9.3 in)	1974	79.4 mm (3.1 in)	44
Longest dry spell (CDD)	181 days	1991	78 days	44

Hottest day (TXx)

The hottest day of the year at Calipan, 1963 to 2009. The record is 41.7 C (107.1 F) in 2005, marked on the chart; the median year is 38.9 C (102.0 F).

Hottest day (TXx) at Calipan by year
Year	Hottest day (TXx)
1963	35.6 C (96.1 F)
1964	40.6 C (105.1 F)
1965	38.9 C (102.0 F)
1966	40.0 C (104.0 F)
1967	37.2 C (99.0 F)
1968	37.2 C (99.0 F)
1969	39.4 C (102.9 F)
1970	37.8 C (100.0 F)
1971	37.8 C (100.0 F)
1972	37.8 C (100.0 F)
1973	40.0 C (104.0 F)
1974	37.2 C (99.0 F)
1975	36.7 C (98.1 F)
1976	37.8 C (100.0 F)
1977	38.9 C (102.0 F)
1978	40.0 C (104.0 F)
1979	38.9 C (102.0 F)
1980	40.0 C (104.0 F)
1981	37.8 C (100.0 F)
1982	39.4 C (102.9 F)
1983	38.9 C (102.0 F)
1984	40.6 C (105.1 F)
1987	36.7 C (98.1 F)
1988	40.0 C (104.0 F)
1989	38.9 C (102.0 F)
1990	40.0 C (104.0 F)
1991	40.6 C (105.1 F)
1992	36.7 C (98.1 F)
1993	40.0 C (104.0 F)
1994	37.8 C (100.0 F)
1995	38.9 C (102.0 F)
1996	37.8 C (100.0 F)
1997	37.8 C (100.0 F)
1998	40.6 C (105.1 F)
1999	40.0 C (104.0 F)
2000	40.0 C (104.0 F)
2001	37.8 C (100.0 F)
2002	38.9 C (102.0 F)
2004	38.9 C (102.0 F)
2005	41.7 C (107.1 F)
2006	40.6 C (105.1 F)
2007	40.0 C (104.0 F)
2008	40.6 C (105.1 F)
2009	40.0 C (104.0 F)

Coldest night (TNn)

The coldest night of the year at Calipan, 1963 to 2009. The record is 0.6 C (33.1 F) in 1990, marked on the chart; the median year is 5.6 C (42.1 F).

Coldest night (TNn) at Calipan by year
Year	Coldest night (TNn)
1963	8.9 C (48.0 F)
1964	6.7 C (44.1 F)
1965	7.8 C (46.0 F)
1966	6.7 C (44.1 F)
1967	5.0 C (41.0 F)
1968	7.2 C (45.0 F)
1969	10.0 C (50.0 F)
1970	7.8 C (46.0 F)
1971	8.9 C (48.0 F)
1972	8.9 C (48.0 F)
1973	5.0 C (41.0 F)
1974	7.8 C (46.0 F)
1975	3.9 C (39.0 F)
1976	2.8 C (37.0 F)
1977	5.0 C (41.0 F)
1978	5.6 C (42.1 F)
1979	5.6 C (42.1 F)
1980	6.7 C (44.1 F)
1981	6.7 C (44.1 F)
1982	5.6 C (42.1 F)
1983	5.0 C (41.0 F)
1984	6.1 C (43.0 F)
1987	3.9 C (39.0 F)
1988	3.9 C (39.0 F)
1989	3.9 C (39.0 F)
1990	0.6 C (33.1 F)
1991	2.8 C (37.0 F)
1992	2.8 C (37.0 F)
1993	7.8 C (46.0 F)
1994	6.7 C (44.1 F)
1995	5.6 C (42.1 F)
1996	3.9 C (39.0 F)
1997	5.0 C (41.0 F)
1998	7.8 C (46.0 F)
1999	5.0 C (41.0 F)
2000	5.6 C (42.1 F)
2001	6.7 C (44.1 F)
2002	5.6 C (42.1 F)
2004	5.0 C (41.0 F)
2005	5.0 C (41.0 F)
2006	3.9 C (39.0 F)
2007	5.6 C (42.1 F)
2008	5.0 C (41.0 F)
2009	5.6 C (42.1 F)

Wettest day (Rx1day)

The wettest day of the year at Calipan, 1963 to 2009. The record is 87.9 mm (3.5 in) in 1974, marked on the chart; the median year is 38.2 mm (1.5 in).

Wettest day (Rx1day) at Calipan by year
Year	Wettest day (Rx1day)
1963	11.9 mm (0.5 in)
1964	42.9 mm (1.7 in)
1965	33.3 mm (1.3 in)
1966	39.9 mm (1.6 in)
1967	38.6 mm (1.5 in)
1968	34.0 mm (1.3 in)
1969	49.0 mm (1.9 in)
1970	51.1 mm (2.0 in)
1971	17.8 mm (0.7 in)
1972	54.4 mm (2.1 in)
1973	34.0 mm (1.3 in)
1974	87.9 mm (3.5 in)
1975	51.8 mm (2.0 in)
1976	30.0 mm (1.2 in)
1977	27.2 mm (1.1 in)
1978	19.3 mm (0.8 in)
1979	24.4 mm (1.0 in)
1980	18.8 mm (0.7 in)
1981	34.0 mm (1.3 in)
1982	24.1 mm (0.9 in)
1983	29.5 mm (1.2 in)
1984	29.2 mm (1.1 in)
1987	41.9 mm (1.6 in)
1988	54.9 mm (2.2 in)
1989	29.0 mm (1.1 in)
1990	54.9 mm (2.2 in)
1991	57.2 mm (2.3 in)
1992	64.8 mm (2.6 in)
1993	79.8 mm (3.1 in)
1994	26.9 mm (1.1 in)
1995	53.3 mm (2.1 in)
1996	19.8 mm (0.8 in)
1997	47.0 mm (1.9 in)
1998	71.9 mm (2.8 in)
1999	47.0 mm (1.9 in)
2000	34.8 mm (1.4 in)
2001	64.8 mm (2.6 in)
2002	38.9 mm (1.5 in)
2004	33.8 mm (1.3 in)
2005	37.8 mm (1.5 in)
2006	30.0 mm (1.2 in)
2007	86.9 mm (3.4 in)
2008	29.0 mm (1.1 in)
2009	43.9 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Calipan, 1963 to 2009. The record is 236.7 mm (9.3 in) in 1974, marked on the chart; the median year is 79.4 mm (3.1 in).

Wettest five days (Rx5day) at Calipan by year
Year	Wettest five days (Rx5day)
1963	17.5 mm (0.7 in)
1964	52.8 mm (2.1 in)
1965	35.1 mm (1.4 in)
1966	62.8 mm (2.5 in)
1967	81.5 mm (3.2 in)
1968	102.8 mm (4.0 in)
1969	151.2 mm (6.0 in)
1970	105.2 mm (4.1 in)
1971	20.9 mm (0.8 in)
1972	92.0 mm (3.6 in)
1973	85.8 mm (3.4 in)
1974	236.7 mm (9.3 in)
1975	155.6 mm (6.1 in)
1976	63.0 mm (2.5 in)
1977	61.5 mm (2.4 in)
1978	49.0 mm (1.9 in)
1979	82.3 mm (3.2 in)
1980	41.7 mm (1.6 in)
1981	114.2 mm (4.5 in)
1982	44.4 mm (1.7 in)
1983	50.8 mm (2.0 in)
1984	82.8 mm (3.3 in)
1987	60.2 mm (2.4 in)
1988	164.9 mm (6.5 in)
1989	42.7 mm (1.7 in)
1990	54.9 mm (2.2 in)
1991	133.4 mm (5.3 in)
1992	147.3 mm (5.8 in)
1993	115.3 mm (4.5 in)
1994	26.9 mm (1.1 in)
1995	71.7 mm (2.8 in)
1996	92.2 mm (3.6 in)
1997	74.6 mm (2.9 in)
1998	177.3 mm (7.0 in)
1999	92.8 mm (3.7 in)
2000	65.5 mm (2.6 in)
2001	94.3 mm (3.7 in)
2002	122.4 mm (4.8 in)
2004	69.4 mm (2.7 in)
2005	77.2 mm (3.0 in)
2006	51.9 mm (2.0 in)
2007	103.4 mm (4.1 in)
2008	73.5 mm (2.9 in)
2009	87.3 mm (3.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Calipan, 1963 to 2009. The record is 181 days in 1991, marked on the chart; the median year is 78 days.

Longest dry spell (CDD) at Calipan by year
Year	Longest dry spell (CDD)
1963	68 days
1964	126 days
1965	34 days
1966	51 days
1967	99 days
1968	31 days
1969	62 days
1970	133 days
1971	120 days
1972	65 days
1973	95 days
1974	77 days
1975	131 days
1976	86 days
1977	103 days
1978	52 days
1979	67 days
1980	97 days
1981	54 days
1982	77 days
1983	95 days
1984	61 days
1987	74 days
1988	90 days
1989	115 days
1990	71 days
1991	181 days
1992	50 days
1993	96 days
1994	156 days
1995	173 days
1996	107 days
1997	77 days
1998	126 days
1999	84 days
2000	84 days
2001	60 days
2002	55 days
2004	78 days
2005	64 days
2006	56 days
2007	52 days
2008	139 days
2009	71 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

34 years, 1964 to 2009

A day with at least 38.5 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 108.5 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Calipan: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	38.5 mm (1.5 in)
5 years	55.0 mm (2.2 in)
10 years	66.7 mm (2.6 in)
25 years	82.6 mm (3.3 in)
50 years	95.2 mm (3.7 in)	Longer than the 34 years of record
100 years	108.5 mm (4.3 in)	Longer than the 34 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, 34 years of values from 1964 to 2009.

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: 87.9 mm (3.5 in) in 1974; 86.9 mm (3.4 in) in 2007; 79.8 mm (3.1 in) in 1993.

Download the Data

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