Tlacotalpan Weather Records (MXN00030183)

Record envelope, standing records and threshold days for Tlacotalpan (MXN00030183), Mexico, with 31 years of record.

Key Facts for Tlacotalpan

Tlacotalpan (MXN00030183) is a weather station in Mexico at 18.60 latitude and -95.65 longitude, 5 m (16 ft) above sea level.
The station reports from 1954 to 1984, 31 years of record.
1,464 records set at Tlacotalpan still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 18.60 latitude, -95.65 longitude.
Elevation: 5 m (16 ft).
Period of record: 1954 to 1984, 31 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 Tlacotalpan. 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 Tlacotalpan, 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)	10.0 C (50.0 F)	n/a	n/a
Feb	36.7 C (98.1 F)	8.9 C (48.0 F)	n/a	n/a
Mar	38.9 C (102.0 F)	10.6 C (51.1 F)	n/a	n/a
Apr	41.7 C (107.1 F)	10.6 C (51.1 F)	n/a	n/a
May	40.6 C (105.1 F)	15.6 C (60.1 F)	n/a	n/a
Jun	39.4 C (102.9 F)	16.7 C (62.1 F)	n/a	n/a
Jul	38.9 C (102.0 F)	18.9 C (66.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	18.9 C (66.0 F)	n/a	n/a
Sep	37.8 C (100.0 F)	17.8 C (64.0 F)	n/a	n/a
Oct	36.7 C (98.1 F)	15.6 C (60.1 F)	n/a	n/a
Nov	39.4 C (102.9 F)	12.8 C (55.0 F)	n/a	n/a
Dec	35.6 C (96.1 F)	10.0 C (50.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tlacotalpan still stand. 1955 holds the most, with 130.

Standing records at Tlacotalpan by the year they were set
Year set	Standing records
1954	110
1955	130
1956	44
1957	50
1958	75
1959	35
1960	74
1961	41
1962	62
1963	42
1964	50
1966	24
1967	32
1968	30
1969	50
1970	44
1971	41
1972	27
1973	44
1974	32
1975	34
1976	37
1977	30
1978	31
1979	24
1980	34
1981	26
1982	66
1983	71
1984	74

Wettest Day of Each Month

Sep: 249.2 mm (9.8 in)

The wettest day on record for each calendar month at Tlacotalpan. The most was 249.2 mm (9.8 in) on 15 September 1984.

Record daily precipitation for each month at Tlacotalpan
Month	Record daily precipitation (mm)	Date
Jan	51.6 mm (2.0 in)	12 January 1981
Feb	79.8 mm (3.1 in)	8 February 1957
Mar	40.4 mm (1.6 in)	30 March 1964
Apr	57.4 mm (2.3 in)	28 April 1955
May	72.4 mm (2.9 in)	7 May 1963
Jun	216.4 mm (8.5 in)	5 June 1958
Jul	239.8 mm (9.4 in)	13 July 1955
Aug	211.8 mm (8.3 in)	31 August 1955
Sep	249.2 mm (9.8 in)	15 September 1984
Oct	151.9 mm (6.0 in)	6 October 1954
Nov	207.8 mm (8.2 in)	17 November 1966
Dec	168.1 mm (6.6 in)	7 December 1973

Period of Record Coverage

1954 to 1984

30 years of record at Tlacotalpan, 1954 to 1984. 2 years have data for under 90 percent of days and are left out of rankings: 1969, 1984.

Days with data per year at Tlacotalpan
Year	Days with data	Share of year	Complete
1954	364	100%	Yes
1955	365	100%	Yes
1956	364	99%	Yes
1957	364	100%	Yes
1958	363	99%	Yes
1959	364	100%	Yes
1960	351	96%	Yes
1961	363	99%	Yes
1962	363	99%	Yes
1963	361	99%	Yes
1964	364	99%	Yes
1966	361	99%	Yes
1967	331	91%	Yes
1968	366	100%	Yes
1969	302	83%	No
1970	363	99%	Yes
1971	365	100%	Yes
1972	364	99%	Yes
1973	362	99%	Yes
1974	364	100%	Yes
1975	363	99%	Yes
1976	365	100%	Yes
1977	364	100%	Yes
1978	363	99%	Yes
1979	363	99%	Yes
1980	362	99%	Yes
1981	364	100%	Yes
1982	364	100%	Yes
1983	361	99%	Yes
1984	240	66%	No

Latest Records

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

Climate Trend

26 complete years, 1954 to 1983

One stripe for each of 26 complete years at Tlacotalpan, 1954 to 1983. Blue stripes are years cooler than the station's own mean of 25.4 C (77.7 F); red stripes are warmer. The coolest year was 1983, at 23.4 C (74.0 F), and the warmest was 1955, at 26.4 C (79.6 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Tlacotalpan as warming stripes, 1954 to 1983
Year	Annual mean temperature	Difference from the station mean
1954	25.2 C	-0.18 C
1955	26.4 C	+1.05 C
1956	25.5 C	+0.11 C
1957	26.1 C	+0.73 C
1958	25.8 C	+0.45 C
1959	25.7 C	+0.29 C
1961	25.6 C	+0.17 C
1962	25.9 C	+0.48 C
1963	25.6 C	+0.16 C
1964	26.0 C	+0.58 C
1966	25.0 C	-0.38 C
1968	25.5 C	+0.09 C
1970	25.5 C	+0.10 C
1971	26.1 C	+0.68 C
1972	26.1 C	+0.74 C
1973	25.6 C	+0.22 C
1974	25.4 C	-0.03 C
1975	25.7 C	+0.29 C
1976	24.9 C	-0.51 C
1977	25.5 C	+0.08 C
1978	25.2 C	-0.21 C
1979	25.0 C	-0.35 C
1980	25.2 C	-0.18 C
1981	24.6 C	-0.82 C
1982	23.7 C	-1.65 C
1983	23.4 C	-2.03 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

1954 to 1984

Yearly extremes at Tlacotalpan: 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)	1984	38.1 C (100.5 F)	30
Coldest night (TNn)	8.9 C (48.0 F)	1983	11.7 C (53.1 F)	30
Wettest day (Rx1day)	249.2 mm (9.8 in)	1984	141.9 mm (5.6 in)	30
Wettest five days (Rx5day)	473.5 mm (18.6 in)	1960	278.6 mm (11.0 in)	30
Longest dry spell (CDD)	78 days	1961	39 days	30

Hottest day (TXx)

The hottest day of the year at Tlacotalpan, 1954 to 1984. The record is 41.7 C (107.1 F) in 1984, marked on the chart; the median year is 38.1 C (100.5 F).

Hottest day (TXx) at Tlacotalpan by year
Year	Hottest day (TXx)
1954	37.8 C (100.0 F)
1955	39.4 C (102.9 F)
1956	37.8 C (100.0 F)
1957	39.4 C (102.9 F)
1958	39.4 C (102.9 F)
1959	37.8 C (100.0 F)
1960	40.6 C (105.1 F)
1961	40.0 C (104.0 F)
1962	39.4 C (102.9 F)
1963	37.8 C (100.0 F)
1964	40.0 C (104.0 F)
1966	35.0 C (95.0 F)
1967	37.2 C (99.0 F)
1968	37.8 C (100.0 F)
1969	40.0 C (104.0 F)
1970	38.9 C (102.0 F)
1971	40.0 C (104.0 F)
1972	37.8 C (100.0 F)
1973	37.8 C (100.0 F)
1974	37.8 C (100.0 F)
1975	38.9 C (102.0 F)
1976	37.8 C (100.0 F)
1977	40.0 C (104.0 F)
1978	37.8 C (100.0 F)
1979	37.8 C (100.0 F)
1980	38.9 C (102.0 F)
1981	38.3 C (100.9 F)
1982	34.4 C (93.9 F)
1983	35.6 C (96.1 F)
1984	41.7 C (107.1 F)

Coldest night (TNn)

The coldest night of the year at Tlacotalpan, 1954 to 1984. The record is 8.9 C (48.0 F) in 1983, marked on the chart; the median year is 11.7 C (53.1 F).

Coldest night (TNn) at Tlacotalpan by year
Year	Coldest night (TNn)
1954	10.6 C (51.1 F)
1955	13.9 C (57.0 F)
1956	12.8 C (55.0 F)
1957	13.3 C (55.9 F)
1958	10.0 C (50.0 F)
1959	14.4 C (57.9 F)
1960	12.8 C (55.0 F)
1961	12.8 C (55.0 F)
1962	10.6 C (51.1 F)
1963	10.0 C (50.0 F)
1964	11.7 C (53.1 F)
1966	13.3 C (55.9 F)
1967	10.6 C (51.1 F)
1968	10.6 C (51.1 F)
1969	13.9 C (57.0 F)
1970	12.8 C (55.0 F)
1971	12.8 C (55.0 F)
1972	11.7 C (53.1 F)
1973	10.6 C (51.1 F)
1974	12.8 C (55.0 F)
1975	11.7 C (53.1 F)
1976	10.6 C (51.1 F)
1977	10.6 C (51.1 F)
1978	12.8 C (55.0 F)
1979	11.7 C (53.1 F)
1980	11.7 C (53.1 F)
1981	12.8 C (55.0 F)
1982	10.6 C (51.1 F)
1983	8.9 C (48.0 F)
1984	11.1 C (52.0 F)

Wettest day (Rx1day)

The wettest day of the year at Tlacotalpan, 1954 to 1984. The record is 249.2 mm (9.8 in) in 1984, marked on the chart; the median year is 141.9 mm (5.6 in).

Wettest day (Rx1day) at Tlacotalpan by year
Year	Wettest day (Rx1day)
1954	151.9 mm (6.0 in)
1955	239.8 mm (9.4 in)
1956	98.6 mm (3.9 in)
1957	114.8 mm (4.5 in)
1958	216.4 mm (8.5 in)
1959	120.4 mm (4.7 in)
1960	216.9 mm (8.5 in)
1961	135.1 mm (5.3 in)
1962	134.1 mm (5.3 in)
1963	239.8 mm (9.4 in)
1964	132.6 mm (5.2 in)
1966	207.8 mm (8.2 in)
1967	74.9 mm (2.9 in)
1968	236.0 mm (9.3 in)
1969	106.2 mm (4.2 in)
1970	235.5 mm (9.3 in)
1971	99.8 mm (3.9 in)
1972	103.9 mm (4.1 in)
1973	168.1 mm (6.6 in)
1974	199.9 mm (7.9 in)
1975	148.6 mm (5.9 in)
1976	110.0 mm (4.3 in)
1977	105.9 mm (4.2 in)
1978	150.4 mm (5.9 in)
1979	98.6 mm (3.9 in)
1980	93.0 mm (3.7 in)
1981	160.0 mm (6.3 in)
1982	182.4 mm (7.2 in)
1983	130.0 mm (5.1 in)
1984	249.2 mm (9.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tlacotalpan, 1954 to 1984. The record is 473.5 mm (18.6 in) in 1960, marked on the chart; the median year is 278.6 mm (11.0 in).

Wettest five days (Rx5day) at Tlacotalpan by year
Year	Wettest five days (Rx5day)
1954	434.6 mm (17.1 in)
1955	451.4 mm (17.8 in)
1956	182.7 mm (7.2 in)
1957	174.1 mm (6.9 in)
1958	361.2 mm (14.2 in)
1959	207.8 mm (8.2 in)
1960	473.5 mm (18.6 in)
1961	225.0 mm (8.9 in)
1962	247.1 mm (9.7 in)
1963	356.6 mm (14.0 in)
1964	174.2 mm (6.9 in)
1966	338.3 mm (13.3 in)
1967	160.0 mm (6.3 in)
1968	306.3 mm (12.1 in)
1969	288.3 mm (11.4 in)
1970	259.9 mm (10.2 in)
1971	223.3 mm (8.8 in)
1972	293.6 mm (11.6 in)
1973	394.2 mm (15.5 in)
1974	293.3 mm (11.5 in)
1975	362.5 mm (14.3 in)
1976	226.7 mm (8.9 in)
1977	171.7 mm (6.8 in)
1978	337.1 mm (13.3 in)
1979	268.8 mm (10.6 in)
1980	196.1 mm (7.7 in)
1981	199.0 mm (7.8 in)
1982	298.3 mm (11.7 in)
1983	230.1 mm (9.1 in)
1984	423.2 mm (16.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tlacotalpan, 1954 to 1984. The record is 78 days in 1961, marked on the chart; the median year is 39 days.

Longest dry spell (CDD) at Tlacotalpan by year
Year	Longest dry spell (CDD)
1954	25 days
1955	26 days
1956	68 days
1957	62 days
1958	50 days
1959	28 days
1960	33 days
1961	78 days
1962	47 days
1963	44 days
1964	47 days
1966	29 days
1967	29 days
1968	42 days
1969	39 days
1970	30 days
1971	33 days
1972	31 days
1973	35 days
1974	43 days
1975	38 days
1976	37 days
1977	51 days
1978	33 days
1979	27 days
1980	50 days
1981	21 days
1982	40 days
1983	39 days
1984	54 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 Tlacotalpan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tlacotalpan 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 2026-10-16 (16 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).