Chalcatongo de Hidalgo Weather Records (MXN00020026)

Record envelope, standing records and threshold days for Chalcatongo de Hidalgo (MXN00020026), Mexico, with 32 years of record.

Key Facts for Chalcatongo de Hidalgo

Chalcatongo de Hidalgo (MXN00020026) is a weather station in Mexico at 16.95 latitude and -97.52 longitude, 2,865 m (9,399 ft) above sea level.
The station reports from 1957 to 1988, 32 years of record.
1,464 records set at Chalcatongo de Hidalgo still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Chalcatongo de Hidalgo tied a daily record low minimum temperature of -5.0 C (23.0 F) on 30 December 1988.

About the Station

Location: Mexico, 16.95 latitude, -97.52 longitude.
Elevation: 2,865 m (9,399 ft).
Period of record: 1957 to 1988, 32 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 Chalcatongo de Hidalgo. 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 Chalcatongo de Hidalgo, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	27.8 C (82.0 F)	-12.2 C (10.0 F)	n/a	n/a
Feb	28.9 C (84.0 F)	-9.4 C (15.1 F)	n/a	n/a
Mar	31.7 C (89.1 F)	-9.4 C (15.1 F)	n/a	n/a
Apr	32.8 C (91.0 F)	-3.3 C (26.1 F)	n/a	n/a
May	32.2 C (90.0 F)	0.0 C (32.0 F)	n/a	n/a
Jun	30.0 C (86.0 F)	0.6 C (33.1 F)	n/a	n/a
Jul	30.0 C (86.0 F)	1.7 C (35.1 F)	n/a	n/a
Aug	27.8 C (82.0 F)	0.6 C (33.1 F)	n/a	n/a
Sep	28.9 C (84.0 F)	1.7 C (35.1 F)	n/a	n/a
Oct	26.7 C (80.1 F)	-5.0 C (23.0 F)	n/a	n/a
Nov	27.8 C (82.0 F)	-6.1 C (21.0 F)	n/a	n/a
Dec	30.0 C (86.0 F)	-9.4 C (15.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Chalcatongo de Hidalgo still stand. 1969 holds the most, with 84.

Standing records at Chalcatongo de Hidalgo by the year they were set
Year set	Standing records
1957	44
1958	64
1959	47
1960	53
1961	59
1962	76
1963	77
1964	31
1965	41
1966	27
1967	26
1968	29
1969	84
1970	74
1971	17
1972	31
1973	77
1974	32
1975	27
1976	24
1977	30
1978	49
1979	36
1980	34
1981	20
1982	53
1983	82
1984	40
1985	21
1986	53
1987	60
1988	46

Wettest Day of Each Month

Jan: 146.3 mm (5.8 in)

The wettest day on record for each calendar month at Chalcatongo de Hidalgo. The most was 146.3 mm (5.8 in) on 19 January 1958.

Record daily precipitation for each month at Chalcatongo de Hidalgo
Month	Record daily precipitation (mm)	Date
Jan	146.3 mm (5.8 in)	19 January 1958
Feb	48.5 mm (1.9 in)	25 February 1983
Mar	53.3 mm (2.1 in)	4 March 1987
Apr	73.2 mm (2.9 in)	6 April 1973
May	42.9 mm (1.7 in)	19 May 1968
Jun	101.3 mm (4.0 in)	16 June 1974
Jul	53.3 mm (2.1 in)	19 July 1959
Aug	84.1 mm (3.3 in)	25 August 1979
Sep	119.9 mm (4.7 in)	26 September 1973
Oct	42.9 mm (1.7 in)	10 October 1973
Nov	43.4 mm (1.7 in)	24 November 1964
Dec	31.8 mm (1.3 in)	13 December 1958

Period of Record Coverage

1957 to 1988

32 years of record at Chalcatongo de Hidalgo, 1957 to 1988. 1 years have data for under 90 percent of days and are left out of rankings: 1957.

Days with data per year at Chalcatongo de Hidalgo
Year	Days with data	Share of year	Complete
1957	158	43%	No
1958	364	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	364	100%	Yes
1967	334	92%	Yes
1968	366	100%	Yes
1969	363	99%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	349	96%	Yes
1982	337	92%	Yes
1983	365	100%	Yes
1984	365	100%	Yes
1985	334	92%	Yes
1986	361	99%	Yes
1987	365	100%	Yes
1988	366	100%	Yes

Latest Records

Latest records at Chalcatongo de Hidalgo
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 December 1988	Chalcatongo de Hidalgo, MX	daily low min (Tie)	-5.0 C (23.0 F)	tie	11 years	1 of 100 (Routine)
21 December 1988	Chalcatongo de Hidalgo, MX	daily low min	-6.7 C (19.9 F)	1.7 C (3.1 F)	6 years	8 of 100 (Routine)
18 December 1988	Chalcatongo de Hidalgo, MX	daily low max (Tie)	16.7 C (62.1 F)	tie	30 years	3 of 100 (Routine)
15 December 1988	Chalcatongo de Hidalgo, MX	daily low min	-2.2 C (28.0 F)	1.1 C (2.0 F)	6 years	7 of 100 (Routine)
13 December 1988	Chalcatongo de Hidalgo, MX	daily low max	18.3 C (64.9 F)	0.6 C (1.1 F)	27 years	13 of 100 (Routine)
9 December 1988	Chalcatongo de Hidalgo, MX	daily low min	-5.0 C (23.0 F)	2.8 C (5.0 F)	18 years	15 of 100 (Routine)
8 December 1988	Chalcatongo de Hidalgo, MX	daily low min (Tie)	-3.3 C (26.1 F)	tie	2 years	0 of 100 (Routine)
5 December 1988	Chalcatongo de Hidalgo, MX	daily low max (Tie)	16.7 C (62.1 F)	tie	30 years	3 of 100 (Routine)
4 December 1988	Chalcatongo de Hidalgo, MX	daily low max (Tie)	17.2 C (63.0 F)	tie	15 years	1 of 100 (Routine)
2 December 1988	Chalcatongo de Hidalgo, MX	daily low max (Tie)	17.8 C (64.0 F)	tie	30 years	3 of 100 (Routine)
10 November 1988	Chalcatongo de Hidalgo, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	2 years	0 of 100 (Routine)
9 November 1988	Chalcatongo de Hidalgo, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	26 years	2 of 100 (Routine)
4 November 1988	Chalcatongo de Hidalgo, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	1 year	0 of 100 (Routine)
27 October 1988	Chalcatongo de Hidalgo, MX	monthly low min	-5.0 C (23.0 F)	0.6 C (1.1 F)	0 years	14 of 100 (Routine)
26 October 1988	Chalcatongo de Hidalgo, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	1 year	0 of 100 (Routine)
20 October 1988	Chalcatongo de Hidalgo, MX	daily low min (Tie)	1.7 C (35.1 F)	tie	6 years	1 of 100 (Routine)
19 October 1988	Chalcatongo de Hidalgo, MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	1 year	4 of 100 (Routine)
5 October 1988	Chalcatongo de Hidalgo, MX	daily low max	16.7 C (62.1 F)	0.5 C (0.9 F)	24 years	12 of 100 (Routine)
4 October 1988	Chalcatongo de Hidalgo, MX	daily low max	17.2 C (63.0 F)	1.7 C (3.1 F)	29 years	20 of 100 (Routine)
3 October 1988	Chalcatongo de Hidalgo, MX	daily low max	17.8 C (64.0 F)	1.1 C (2.0 F)	9 years	10 of 100 (Routine)

Climate Trend

27 complete years, 1958 to 1988

One stripe for each of 27 complete years at Chalcatongo de Hidalgo, 1958 to 1988. Blue stripes are years cooler than the station's own mean of 14.7 C (58.4 F); red stripes are warmer. The coolest year was 1986, at 12.7 C (54.8 F), and the warmest was 1969, at 16.5 C (61.8 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Chalcatongo de Hidalgo as warming stripes, 1958 to 1988
Year	Annual mean temperature	Difference from the station mean
1958	15.4 C	+0.74 C
1959	14.8 C	+0.15 C
1960	14.9 C	+0.19 C
1961	13.9 C	-0.80 C
1962	13.6 C	-1.13 C
1963	15.0 C	+0.31 C
1964	14.9 C	+0.25 C
1965	15.0 C	+0.29 C
1966	14.7 C	-0.01 C
1968	15.0 C	+0.28 C
1969	16.5 C	+1.85 C
1970	15.9 C	+1.26 C
1971	14.6 C	-0.13 C
1972	15.2 C	+0.50 C
1973	15.9 C	+1.18 C
1974	15.0 C	+0.27 C
1975	15.0 C	+0.33 C
1976	15.0 C	+0.30 C
1977	15.4 C	+0.73 C
1978	15.7 C	+0.99 C
1979	15.4 C	+0.74 C
1980	15.6 C	+0.88 C
1983	12.8 C	-1.86 C
1984	12.9 C	-1.77 C
1986	12.7 C	-2.01 C
1987	13.0 C	-1.72 C
1988	12.8 C	-1.91 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

1957 to 1988

Yearly extremes at Chalcatongo de Hidalgo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	32.8 C (91.0 F)	1963	28.9 C (84.0 F)	32
Coldest night (TNn)	-12.2 C (10.0 F)	1983	-3.3 C (26.1 F)	32
Wettest day (Rx1day)	146.3 mm (5.8 in)	1958	46.6 mm (1.8 in)	32
Wettest five days (Rx5day)	250.4 mm (9.9 in)	1974	99.7 mm (3.9 in)	32
Longest dry spell (CDD)	120 days	1960	63 days	32

Hottest day (TXx)

The hottest day of the year at Chalcatongo de Hidalgo, 1957 to 1988. The record is 32.8 C (91.0 F) in 1963, marked on the chart; the median year is 28.9 C (84.0 F).

Hottest day (TXx) at Chalcatongo de Hidalgo by year
Year	Hottest day (TXx)
1957	27.2 C (81.0 F)
1958	26.7 C (80.1 F)
1959	25.6 C (78.1 F)
1960	25.6 C (78.1 F)
1961	26.1 C (79.0 F)
1962	27.8 C (82.0 F)
1963	32.8 C (91.0 F)
1964	30.6 C (87.1 F)
1965	28.9 C (84.0 F)
1966	28.9 C (84.0 F)
1967	28.9 C (84.0 F)
1968	30.0 C (86.0 F)
1969	30.6 C (87.1 F)
1970	32.2 C (90.0 F)
1971	31.7 C (89.1 F)
1972	31.7 C (89.1 F)
1973	30.0 C (86.0 F)
1974	28.9 C (84.0 F)
1975	31.7 C (89.1 F)
1976	28.9 C (84.0 F)
1977	28.9 C (84.0 F)
1978	30.0 C (86.0 F)
1979	31.7 C (89.1 F)
1980	28.9 C (84.0 F)
1981	28.9 C (84.0 F)
1982	27.8 C (82.0 F)
1983	30.0 C (86.0 F)
1984	27.8 C (82.0 F)
1985	26.7 C (80.1 F)
1986	27.8 C (82.0 F)
1987	26.7 C (80.1 F)
1988	25.6 C (78.1 F)

Coldest night (TNn)

The coldest night of the year at Chalcatongo de Hidalgo, 1957 to 1988. The record is -12.2 C (10.0 F) in 1983, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at Chalcatongo de Hidalgo by year
Year	Coldest night (TNn)
1957	0.6 C (33.1 F)
1958	1.7 C (35.1 F)
1959	0.0 C (32.0 F)
1960	-1.7 C (28.9 F)
1961	-2.2 C (28.0 F)
1962	-2.2 C (28.0 F)
1963	-5.0 C (23.0 F)
1964	0.0 C (32.0 F)
1965	-2.2 C (28.0 F)
1966	-5.0 C (23.0 F)
1967	-6.1 C (21.0 F)
1968	-9.4 C (15.1 F)
1969	-1.1 C (30.0 F)
1970	-6.1 C (21.0 F)
1971	-3.3 C (26.1 F)
1972	-0.6 C (30.9 F)
1973	-3.3 C (26.1 F)
1974	-4.4 C (24.1 F)
1975	-2.2 C (28.0 F)
1976	-8.3 C (17.1 F)
1977	-5.0 C (23.0 F)
1978	-6.1 C (21.0 F)
1979	0.0 C (32.0 F)
1980	-1.1 C (30.0 F)
1981	-1.1 C (30.0 F)
1982	-9.4 C (15.1 F)
1983	-12.2 C (10.0 F)
1984	-3.3 C (26.1 F)
1985	-5.0 C (23.0 F)
1986	-9.4 C (15.1 F)
1987	-11.1 C (12.0 F)
1988	-6.7 C (19.9 F)

Wettest day (Rx1day)

The wettest day of the year at Chalcatongo de Hidalgo, 1957 to 1988. The record is 146.3 mm (5.8 in) in 1958, marked on the chart; the median year is 46.6 mm (1.8 in).

Wettest day (Rx1day) at Chalcatongo de Hidalgo by year
Year	Wettest day (Rx1day)
1957	43.4 mm (1.7 in)
1958	146.3 mm (5.8 in)
1959	53.3 mm (2.1 in)
1960	39.9 mm (1.6 in)
1961	31.5 mm (1.2 in)
1962	26.2 mm (1.0 in)
1963	39.9 mm (1.6 in)
1964	43.9 mm (1.7 in)
1965	40.4 mm (1.6 in)
1966	43.9 mm (1.7 in)
1967	40.9 mm (1.6 in)
1968	54.1 mm (2.1 in)
1969	45.0 mm (1.8 in)
1970	46.2 mm (1.8 in)
1971	48.3 mm (1.9 in)
1972	53.1 mm (2.1 in)
1973	119.9 mm (4.7 in)
1974	101.3 mm (4.0 in)
1975	33.8 mm (1.3 in)
1976	38.4 mm (1.5 in)
1977	54.4 mm (2.1 in)
1978	30.5 mm (1.2 in)
1979	84.1 mm (3.3 in)
1980	55.9 mm (2.2 in)
1981	53.8 mm (2.1 in)
1982	29.5 mm (1.2 in)
1983	51.8 mm (2.0 in)
1984	59.9 mm (2.4 in)
1985	47.0 mm (1.9 in)
1986	50.8 mm (2.0 in)
1987	53.3 mm (2.1 in)
1988	32.5 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Chalcatongo de Hidalgo, 1957 to 1988. The record is 250.4 mm (9.9 in) in 1974, marked on the chart; the median year is 99.7 mm (3.9 in).

Wettest five days (Rx5day) at Chalcatongo de Hidalgo by year
Year	Wettest five days (Rx5day)
1957	71.1 mm (2.8 in)
1958	179.3 mm (7.1 in)
1959	92.5 mm (3.6 in)
1960	78.3 mm (3.1 in)
1961	108.7 mm (4.3 in)
1962	69.9 mm (2.8 in)
1963	121.0 mm (4.8 in)
1964	107.4 mm (4.2 in)
1965	94.6 mm (3.7 in)
1966	69.3 mm (2.7 in)
1967	127.9 mm (5.0 in)
1968	140.5 mm (5.5 in)
1969	99.9 mm (3.9 in)
1970	81.1 mm (3.2 in)
1971	105.3 mm (4.1 in)
1972	104.8 mm (4.1 in)
1973	139.7 mm (5.5 in)
1974	250.4 mm (9.9 in)
1975	116.1 mm (4.6 in)
1976	79.5 mm (3.1 in)
1977	88.7 mm (3.5 in)
1978	65.3 mm (2.6 in)
1979	150.7 mm (5.9 in)
1980	81.6 mm (3.2 in)
1981	128.3 mm (5.1 in)
1982	60.0 mm (2.4 in)
1983	128.8 mm (5.1 in)
1984	119.1 mm (4.7 in)
1985	97.8 mm (3.9 in)
1986	99.5 mm (3.9 in)
1987	90.5 mm (3.6 in)
1988	77.0 mm (3.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Chalcatongo de Hidalgo, 1957 to 1988. The record is 120 days in 1960, marked on the chart; the median year is 63 days.

Longest dry spell (CDD) at Chalcatongo de Hidalgo by year
Year	Longest dry spell (CDD)
1957	29 days
1958	51 days
1959	90 days
1960	120 days
1961	73 days
1962	104 days
1963	54 days
1964	99 days
1965	55 days
1966	54 days
1967	48 days
1968	29 days
1969	58 days
1970	110 days
1971	87 days
1972	70 days
1973	61 days
1974	72 days
1975	93 days
1976	80 days
1977	120 days
1978	37 days
1979	53 days
1980	60 days
1981	35 days
1982	50 days
1983	72 days
1984	65 days
1985	36 days
1986	55 days
1987	94 days
1988	84 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

31 years, 1958 to 1988

A day with at least 45.5 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 166.6 mm (6.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Chalcatongo de Hidalgo: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	45.5 mm (1.8 in)
5 years	63.7 mm (2.5 in)
10 years	80.0 mm (3.1 in)
25 years	107.2 mm (4.2 in)
50 years	133.7 mm (5.3 in)	Longer than the 31 years of record
100 years	166.6 mm (6.6 in)	Longer than the 31 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, 31 years of values from 1958 to 1988.

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: 146.3 mm (5.8 in) in 1958; 119.9 mm (4.7 in) in 1973; 101.3 mm (4.0 in) in 1974.

Download the Data

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