Comalcalco (Smn) Weather Records (MXN00027057)

Record envelope, standing records and threshold days for Comalcalco (Smn) (MXN00027057), Mexico, with 70 years of record.

Key Facts for Comalcalco (Smn)

Comalcalco (Smn) (MXN00027057) is a weather station in Mexico at 18.27 latitude and -93.22 longitude, 13 m (42 ft) above sea level.
The station reports from 1942 to 2011, 70 years of record.
1,464 records set at Comalcalco (Smn) still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 18.27 latitude, -93.22 longitude.
Elevation: 13 m (42 ft).
Period of record: 1942 to 2011, 70 years.
Eligible elements: none yet.

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 Comalcalco (Smn). 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 Comalcalco (Smn), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	36.7 C (98.1 F)	10.0 C (50.0 F)	n/a	n/a
Feb	37.8 C (100.0 F)	9.4 C (48.9 F)	n/a	n/a
Mar	38.9 C (102.0 F)	11.7 C (53.1 F)	n/a	n/a
Apr	42.8 C (109.0 F)	13.9 C (57.0 F)	n/a	n/a
May	43.9 C (111.0 F)	12.2 C (54.0 F)	n/a	n/a
Jun	40.6 C (105.1 F)	18.3 C (64.9 F)	n/a	n/a
Jul	41.1 C (106.0 F)	16.1 C (61.0 F)	n/a	n/a
Aug	38.9 C (102.0 F)	16.7 C (62.1 F)	n/a	n/a
Sep	41.1 C (106.0 F)	18.3 C (64.9 F)	n/a	n/a
Oct	38.3 C (100.9 F)	11.1 C (52.0 F)	n/a	n/a
Nov	38.9 C (102.0 F)	10.6 C (51.1 F)	n/a	n/a
Dec	35.6 C (96.1 F)	9.4 C (48.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Comalcalco (Smn) still stand. 1964 holds the most, with 95.

Standing records at Comalcalco (Smn) by the year they were set
Year set	Standing records
1942	76
1943	54
1944	70
1945	90
1946	67
1947	30
1948	47
1949	71
1950	50
1951	38
1952	46
1953	55
1954	49
1955	74
1956	30
1957	35
1958	57
1959	62
1960	56
1961	46
1962	68
1963	36
1964	95
1965	51
1966	31
1967	15
1969	53
1970	12

Wettest Day of Each Month

Sep: 283.0 mm (11.1 in)

The wettest day on record for each calendar month at Comalcalco (Smn). The most was 283.0 mm (11.1 in) on 28 September 1955.

Record daily precipitation for each month at Comalcalco (Smn)
Month	Record daily precipitation (mm)	Date
Jan	245.1 mm (9.6 in)	6 January 1949
Feb	100.1 mm (3.9 in)	14 February 1946
Mar	87.4 mm (3.4 in)	12 March 1948
Apr	119.9 mm (4.7 in)	13 April 1959
May	187.5 mm (7.4 in)	3 May 1954
Jun	105.2 mm (4.1 in)	5 June 1946
Jul	95.0 mm (3.7 in)	23 July 1943
Aug	86.1 mm (3.4 in)	19 August 1969
Sep	283.0 mm (11.1 in)	28 September 1955
Oct	239.8 mm (9.4 in)	18 October 1958
Nov	279.9 mm (11.0 in)	6 November 1959
Dec	110.2 mm (4.3 in)	2 December 1946

Period of Record Coverage

1942 to 1970

28 years of record at Comalcalco (Smn), 1942 to 1970. 5 years have data for under 90 percent of days and are left out of rankings: 1942, 1953, 1967, 1969, 1970.

Days with data per year at Comalcalco (Smn)
Year	Days with data	Share of year	Complete
1942	223	61%	No
1943	362	99%	Yes
1944	364	99%	Yes
1945	362	99%	Yes
1946	363	99%	Yes
1947	363	99%	Yes
1948	363	99%	Yes
1949	360	99%	Yes
1950	364	100%	Yes
1951	329	90%	Yes
1952	358	98%	Yes
1953	327	90%	No
1954	353	97%	Yes
1955	360	99%	Yes
1956	365	100%	Yes
1957	361	99%	Yes
1958	362	99%	Yes
1959	362	99%	Yes
1960	360	98%	Yes
1961	333	91%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	365	100%	Yes
1965	364	100%	Yes
1966	364	100%	Yes
1967	212	58%	No
1969	299	82%	No
1970	120	33%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

21 complete years, 1943 to 1966

One stripe for each of 21 complete years at Comalcalco (Smn), 1943 to 1966. Blue stripes are years cooler than the station's own mean of 26.5 C (79.7 F); red stripes are warmer. The coolest year was 1952, at 25.9 C (78.5 F), and the warmest was 1959, at 27.5 C (81.4 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Comalcalco (Smn) as warming stripes, 1943 to 1966
Year	Annual mean temperature	Difference from the station mean
1943	26.7 C	+0.14 C
1944	26.3 C	-0.23 C
1945	26.7 C	+0.17 C
1946	26.8 C	+0.25 C
1947	26.3 C	-0.18 C
1948	26.7 C	+0.14 C
1949	27.0 C	+0.44 C
1950	26.2 C	-0.32 C
1952	25.9 C	-0.66 C
1954	26.4 C	-0.17 C
1955	26.1 C	-0.38 C
1956	26.1 C	-0.43 C
1957	27.2 C	+0.71 C
1958	26.9 C	+0.35 C
1959	27.5 C	+0.94 C
1960	27.1 C	+0.62 C
1962	26.3 C	-0.21 C
1963	26.1 C	-0.46 C
1964	26.1 C	-0.39 C
1965	26.4 C	-0.11 C
1966	26.3 C	-0.26 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

1942 to 2011

Yearly extremes at Comalcalco (Smn): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.9 C (111.0 F)	1953	39.7 C (103.5 F)	28
Coldest night (TNn)	9.4 C (48.9 F)	1945	11.7 C (53.1 F)	28
Wettest day (Rx1day)	283.0 mm (11.1 in)	1955	135.4 mm (5.3 in)	29
Wettest five days (Rx5day)	637.1 mm (25.1 in)	1963	243.3 mm (9.6 in)	29
Longest dry spell (CDD)	59 days	1956	31 days	29

Hottest day (TXx)

The hottest day of the year at Comalcalco (Smn), 1942 to 2011. The record is 43.9 C (111.0 F) in 1953, marked on the chart; the median year is 39.7 C (103.5 F).

Hottest day (TXx) at Comalcalco (Smn) by year
Year	Hottest day (TXx)
1942	38.9 C (102.0 F)
1943	37.8 C (100.0 F)
1944	40.0 C (104.0 F)
1945	40.6 C (105.1 F)
1946	40.0 C (104.0 F)
1947	39.4 C (102.9 F)
1948	41.1 C (106.0 F)
1949	40.6 C (105.1 F)
1950	40.0 C (104.0 F)
1951	40.0 C (104.0 F)
1952	39.4 C (102.9 F)
1953	43.9 C (111.0 F)
1954	40.0 C (104.0 F)
1955	42.8 C (109.0 F)
1956	38.9 C (102.0 F)
1957	41.1 C (106.0 F)
1958	40.0 C (104.0 F)
1959	38.9 C (102.0 F)
1960	40.6 C (105.1 F)
1961	36.7 C (98.1 F)
1962	41.1 C (106.0 F)
1963	37.2 C (99.0 F)
1964	38.3 C (100.9 F)
1965	39.4 C (102.9 F)
1966	37.8 C (100.0 F)
1967	38.9 C (102.0 F)
1969	39.4 C (102.9 F)
1970	38.9 C (102.0 F)
2011	n/a

Coldest night (TNn)

The coldest night of the year at Comalcalco (Smn), 1942 to 2011. The record is 9.4 C (48.9 F) in 1945, marked on the chart; the median year is 11.7 C (53.1 F).

Coldest night (TNn) at Comalcalco (Smn) by year
Year	Coldest night (TNn)
1942	12.8 C (55.0 F)
1943	11.7 C (53.1 F)
1944	10.0 C (50.0 F)
1945	9.4 C (48.9 F)
1946	12.8 C (55.0 F)
1947	10.0 C (50.0 F)
1948	10.0 C (50.0 F)
1949	11.7 C (53.1 F)
1950	11.1 C (52.0 F)
1951	9.4 C (48.9 F)
1952	11.1 C (52.0 F)
1953	10.6 C (51.1 F)
1954	11.1 C (52.0 F)
1955	10.0 C (50.0 F)
1956	11.1 C (52.0 F)
1957	13.3 C (55.9 F)
1958	10.6 C (51.1 F)
1959	11.1 C (52.0 F)
1960	12.2 C (54.0 F)
1961	13.3 C (55.9 F)
1962	13.9 C (57.0 F)
1963	13.9 C (57.0 F)
1964	14.4 C (57.9 F)
1965	14.4 C (57.9 F)
1966	13.9 C (57.0 F)
1967	14.4 C (57.9 F)
1969	16.7 C (62.1 F)
1970	13.3 C (55.9 F)
2011	n/a

Wettest day (Rx1day)

The wettest day of the year at Comalcalco (Smn), 1942 to 2011. The record is 283.0 mm (11.1 in) in 1955, marked on the chart; the median year is 135.4 mm (5.3 in).

Wettest day (Rx1day) at Comalcalco (Smn) by year
Year	Wettest day (Rx1day)
1942	111.0 mm (4.4 in)
1943	119.6 mm (4.7 in)
1944	79.2 mm (3.1 in)
1945	135.4 mm (5.3 in)
1946	140.0 mm (5.5 in)
1947	119.4 mm (4.7 in)
1948	192.3 mm (7.6 in)
1949	245.1 mm (9.6 in)
1950	84.1 mm (3.3 in)
1951	137.7 mm (5.4 in)
1952	98.3 mm (3.9 in)
1953	187.5 mm (7.4 in)
1954	225.8 mm (8.9 in)
1955	283.0 mm (11.1 in)
1956	159.8 mm (6.3 in)
1957	150.4 mm (5.9 in)
1958	244.9 mm (9.6 in)
1959	279.9 mm (11.0 in)
1960	64.8 mm (2.6 in)
1961	120.4 mm (4.7 in)
1962	77.0 mm (3.0 in)
1963	210.6 mm (8.3 in)
1964	110.5 mm (4.4 in)
1965	152.4 mm (6.0 in)
1966	92.5 mm (3.6 in)
1967	74.2 mm (2.9 in)
1969	135.4 mm (5.3 in)
1970	35.3 mm (1.4 in)
2011	89.9 mm (3.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Comalcalco (Smn), 1942 to 2011. The record is 637.1 mm (25.1 in) in 1963, marked on the chart; the median year is 243.3 mm (9.6 in).

Wettest five days (Rx5day) at Comalcalco (Smn) by year
Year	Wettest five days (Rx5day)
1942	272.8 mm (10.7 in)
1943	375.9 mm (14.8 in)
1944	178.1 mm (7.0 in)
1945	204.3 mm (8.0 in)
1946	318.3 mm (12.5 in)
1947	253.8 mm (10.0 in)
1948	308.1 mm (12.1 in)
1949	318.1 mm (12.5 in)
1950	283.0 mm (11.1 in)
1951	227.5 mm (9.0 in)
1952	211.8 mm (8.3 in)
1953	239.3 mm (9.4 in)
1954	252.8 mm (10.0 in)
1955	411.0 mm (16.2 in)
1956	231.9 mm (9.1 in)
1957	243.3 mm (9.6 in)
1958	348.6 mm (13.7 in)
1959	402.1 mm (15.8 in)
1960	135.1 mm (5.3 in)
1961	282.0 mm (11.1 in)
1962	155.1 mm (6.1 in)
1963	637.1 mm (25.1 in)
1964	210.6 mm (8.3 in)
1965	266.3 mm (10.5 in)
1966	193.4 mm (7.6 in)
1967	137.1 mm (5.4 in)
1969	182.5 mm (7.2 in)
1970	64.0 mm (2.5 in)
2011	103.4 mm (4.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Comalcalco (Smn), 1942 to 2011. The record is 59 days in 1956, marked on the chart; the median year is 31 days.

Longest dry spell (CDD) at Comalcalco (Smn) by year
Year	Longest dry spell (CDD)
1942	36 days
1943	39 days
1944	31 days
1945	38 days
1946	24 days
1947	20 days
1948	36 days
1949	56 days
1950	51 days
1951	29 days
1952	28 days
1953	28 days
1954	27 days
1955	55 days
1956	59 days
1957	24 days
1958	33 days
1959	17 days
1960	19 days
1961	25 days
1962	22 days
1963	32 days
1964	32 days
1965	37 days
1966	25 days
1967	39 days
1969	27 days
1970	25 days
2011	53 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.

Download the Data

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