Zapotitlan Weather Records (MXN00014352)

Record envelope, standing records and threshold days for Zapotitlan (MXN00014352), Mexico, with 40 years of record.

Key Facts for Zapotitlan

Zapotitlan (MXN00014352) is a weather station in Mexico at 19.53 latitude and -103.80 longitude, 1,140 m (3,740 ft) above sea level.
The station reports from 1948 to 1987, 40 years of record.
1,464 records set at Zapotitlan still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Zapotitlan set a daily record precipitation of 21.8 mm (0.9 in) on 2 October 1987.

About the Station

Location: Mexico, 19.53 latitude, -103.80 longitude.
Elevation: 1,140 m (3,740 ft).
Period of record: 1948 to 1987, 40 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 Zapotitlan. 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 Zapotitlan, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.6 C (87.1 F)	5.6 C (42.1 F)	n/a	n/a
Feb	33.3 C (91.9 F)	8.9 C (48.0 F)	n/a	n/a
Mar	35.0 C (95.0 F)	10.0 C (50.0 F)	n/a	n/a
Apr	36.1 C (97.0 F)	11.7 C (53.1 F)	n/a	n/a
May	37.2 C (99.0 F)	10.6 C (51.1 F)	n/a	n/a
Jun	36.1 C (97.0 F)	11.7 C (53.1 F)	n/a	n/a
Jul	32.8 C (91.0 F)	10.0 C (50.0 F)	n/a	n/a
Aug	31.7 C (89.1 F)	15.0 C (59.0 F)	n/a	n/a
Sep	31.7 C (89.1 F)	15.0 C (59.0 F)	n/a	n/a
Oct	37.2 C (99.0 F)	10.6 C (51.1 F)	n/a	n/a
Nov	34.4 C (93.9 F)	11.1 C (52.0 F)	n/a	n/a
Dec	31.1 C (88.0 F)	8.9 C (48.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Zapotitlan still stand. 1983 holds the most, with 289.

Wettest Day of Each Month

Sep: 136.9 mm (5.4 in)

The wettest day on record for each calendar month at Zapotitlan. The most was 136.9 mm (5.4 in) on 1 September 1970.

Record daily precipitation for each month at Zapotitlan
Month	Record daily precipitation (mm)	Date
Jan	95.8 mm (3.8 in)	17 January 1981
Feb	21.8 mm (0.9 in)	25 February 1987
Mar	21.1 mm (0.8 in)	4 March 1968
Apr	38.4 mm (1.5 in)	13 April 1962
May	111.8 mm (4.4 in)	26 May 1983
Jun	110.0 mm (4.3 in)	26 June 1951
Jul	99.8 mm (3.9 in)	24 July 1987
Aug	102.9 mm (4.1 in)	6 August 1983
Sep	136.9 mm (5.4 in)	1 September 1970
Oct	134.4 mm (5.3 in)	26 October 1959
Nov	127.3 mm (5.0 in)	18 November 1976
Dec	37.3 mm (1.5 in)	12 December 1982

Period of Record Coverage

1980 to 1987

8 years of record at Zapotitlan, 1980 to 1987. 6 years have data for under 90 percent of days and are left out of rankings: 1980, 1981, 1982, 1984, 1986, 1987.

Latest Records

Latest records at Zapotitlan
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 October 1987	Zapotitlan, MX	daily rain	21.8 mm (0.9 in)	9.9 mm (0.39 in)	28 years	17 of 100 (Routine)
24 July 1987	Zapotitlan, MX	monthly rain	99.8 mm (3.9 in)	8.4 mm (0.33 in)	12 years	23 of 100 (Routine)
11 June 1987	Zapotitlan, MX	daily rain	58.9 mm (2.3 in)	39.1 mm (1.5 in)	36 years	42 of 100 (Notable)
26 February 1987	Zapotitlan, MX	daily rain	6.4 mm (0.25 in)	6.4 mm (0.25 in)	37 years	20 of 100 (Routine)
25 February 1987	Zapotitlan, MX	monthly rain	21.8 mm (0.9 in)	9.9 mm (0.39 in)	14 years	20 of 100 (Routine)
20 October 1986	Zapotitlan, MX	daily rain	46.0 mm (1.8 in)	22.1 mm (0.9 in)	28 years	22 of 100 (Routine)
30 September 1986	Zapotitlan, MX	daily rain	39.9 mm (1.6 in)	18.1 mm (0.7 in)	31 years	24 of 100 (Routine)
29 September 1986	Zapotitlan, MX	daily rain	34.3 mm (1.4 in)	13.5 mm (0.5 in)	31 years	21 of 100 (Routine)
18 August 1985	Zapotitlan, MX	daily rain	34.8 mm (1.4 in)	19.1 mm (0.8 in)	16 years	23 of 100 (Routine)
29 July 1985	Zapotitlan, MX	daily rain	8.9 mm (0.35 in)	1.0 mm (0.04 in)	6 years	4 of 100 (Routine)
13 December 1984	Zapotitlan, MX	daily rain	29.5 mm (1.2 in)	26.7 mm (1.1 in)	17 years	41 of 100 (Notable)
31 October 1984	Zapotitlan, MX	daily rain	26.9 mm (1.1 in)	26.9 mm (1.1 in)	36 years	27 of 100 (Routine)
24 September 1984	Zapotitlan, MX	daily rain	35.3 mm (1.4 in)	13.5 mm (0.5 in)	26 years	19 of 100 (Routine)
2 July 1984	Zapotitlan, MX	daily rain	31.8 mm (1.3 in)	5.9 mm (0.23 in)	14 years	11 of 100 (Routine)
10 June 1984	Zapotitlan, MX	daily rain	16.3 mm (0.6 in)	1.3 mm (0.05 in)	34 years	13 of 100 (Routine)
25 May 1984	Zapotitlan, MX	daily rain	24.9 mm (1.0 in)	18.5 mm (0.7 in)	1 year	11 of 100 (Routine)
11 May 1984	Zapotitlan, MX	daily rain	11.9 mm (0.5 in)	11.9 mm (0.5 in)	35 years	18 of 100 (Routine)
9 May 1984	Zapotitlan, MX	daily rain	7.9 mm (0.31 in)	7.9 mm (0.31 in)	35 years	16 of 100 (Routine)
8 May 1984	Zapotitlan, MX	daily rain	15.0 mm (0.6 in)	15.0 mm (0.6 in)	35 years	19 of 100 (Routine)
6 February 1984	Zapotitlan, MX	daily rain	1.8 mm (0.07 in)	1.8 mm (0.07 in)	34 years	14 of 100 (Routine)

Extremes by Year

1948 to 1987

Yearly extremes at Zapotitlan: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.2 C (99.0 F)	1980	35.6 C (96.0 F)	8
Coldest night (TNn)	5.6 C (42.1 F)	1983	10.0 C (50.0 F)	8
Wettest day (Rx1day)	136.9 mm (5.4 in)	1970	61.5 mm (2.4 in)	39
Wettest five days (Rx5day)	218.2 mm (8.6 in)	1959	95.8 mm (3.8 in)	39
Longest dry spell (CDD)	167 days	1964	91 days	39

Hottest day (TXx)

The hottest day of the year at Zapotitlan, 1948 to 1987. The record is 37.2 C (99.0 F) in 1980, marked on the chart; the median year is 35.6 C (96.0 F).

Hottest day (TXx) at Zapotitlan by year
Year	Hottest day (TXx)
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	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	37.2 C (99.0 F)
1981	37.2 C (99.0 F)
1982	32.8 C (91.0 F)
1983	35.0 C (95.0 F)
1984	35.0 C (95.0 F)
1985	35.0 C (95.0 F)
1986	36.1 C (97.0 F)
1987	37.2 C (99.0 F)

Coldest night (TNn)

The coldest night of the year at Zapotitlan, 1948 to 1987. The record is 5.6 C (42.1 F) in 1983, marked on the chart; the median year is 10.0 C (50.0 F).

Coldest night (TNn) at Zapotitlan by year
Year	Coldest night (TNn)
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	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	11.7 C (53.1 F)
1981	10.6 C (51.1 F)
1982	8.9 C (48.0 F)
1983	5.6 C (42.1 F)
1984	10.6 C (51.1 F)
1985	10.0 C (50.0 F)
1986	9.4 C (48.9 F)
1987	10.0 C (50.0 F)

Wettest day (Rx1day)

The wettest day of the year at Zapotitlan, 1948 to 1987. The record is 136.9 mm (5.4 in) in 1970, marked on the chart; the median year is 61.5 mm (2.4 in).

Wettest day (Rx1day) at Zapotitlan by year
Year	Wettest day (Rx1day)
1948	31.0 mm (1.2 in)
1949	33.8 mm (1.3 in)
1950	73.9 mm (2.9 in)
1951	110.0 mm (4.3 in)
1952	69.9 mm (2.8 in)
1953	49.3 mm (1.9 in)
1955	71.4 mm (2.8 in)
1956	47.8 mm (1.9 in)
1957	52.8 mm (2.1 in)
1958	86.4 mm (3.4 in)
1959	134.4 mm (5.3 in)
1960	39.9 mm (1.6 in)
1961	6.6 mm (0.26 in)
1962	38.4 mm (1.5 in)
1963	8.6 mm (0.34 in)
1964	3.3 mm (0.13 in)
1965	74.4 mm (2.9 in)
1966	20.3 mm (0.8 in)
1967	62.5 mm (2.5 in)
1968	31.0 mm (1.2 in)
1969	100.8 mm (4.0 in)
1970	136.9 mm (5.4 in)
1971	78.0 mm (3.1 in)
1972	61.5 mm (2.4 in)
1973	56.9 mm (2.2 in)
1974	75.4 mm (3.0 in)
1975	91.4 mm (3.6 in)
1976	127.3 mm (5.0 in)
1977	31.8 mm (1.3 in)
1978	21.8 mm (0.9 in)
1979	45.5 mm (1.8 in)
1980	62.5 mm (2.5 in)
1981	95.8 mm (3.8 in)
1982	81.8 mm (3.2 in)
1983	111.8 mm (4.4 in)
1984	35.3 mm (1.4 in)
1985	34.8 mm (1.4 in)
1986	46.0 mm (1.8 in)
1987	99.8 mm (3.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Zapotitlan, 1948 to 1987. The record is 218.2 mm (8.6 in) in 1959, marked on the chart; the median year is 95.8 mm (3.8 in).

Wettest five days (Rx5day) at Zapotitlan by year
Year	Wettest five days (Rx5day)
1948	63.5 mm (2.5 in)
1949	75.4 mm (3.0 in)
1950	136.1 mm (5.4 in)
1951	125.7 mm (4.9 in)
1952	101.7 mm (4.0 in)
1953	67.6 mm (2.7 in)
1955	93.7 mm (3.7 in)
1956	103.1 mm (4.1 in)
1957	127.5 mm (5.0 in)
1958	98.3 mm (3.9 in)
1959	218.2 mm (8.6 in)
1960	59.7 mm (2.4 in)
1961	10.2 mm (0.4 in)
1962	38.4 mm (1.5 in)
1963	16.8 mm (0.7 in)
1964	5.2 mm (0.20 in)
1965	97.8 mm (3.9 in)
1966	35.0 mm (1.4 in)
1967	72.2 mm (2.8 in)
1968	95.4 mm (3.8 in)
1969	140.4 mm (5.5 in)
1970	178.6 mm (7.0 in)
1971	109.3 mm (4.3 in)
1972	93.8 mm (3.7 in)
1973	105.7 mm (4.2 in)
1974	85.4 mm (3.4 in)
1975	159.5 mm (6.3 in)
1976	127.3 mm (5.0 in)
1977	84.1 mm (3.3 in)
1978	37.6 mm (1.5 in)
1979	45.5 mm (1.8 in)
1980	106.7 mm (4.2 in)
1981	95.8 mm (3.8 in)
1982	119.6 mm (4.7 in)
1983	203.4 mm (8.0 in)
1984	60.5 mm (2.4 in)
1985	66.0 mm (2.6 in)
1986	100.3 mm (3.9 in)
1987	122.5 mm (4.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Zapotitlan, 1948 to 1987. The record is 167 days in 1964, marked on the chart; the median year is 91 days.

Longest dry spell (CDD) at Zapotitlan by year
Year	Longest dry spell (CDD)
1948	16 days
1949	159 days
1950	96 days
1951	75 days
1952	72 days
1953	89 days
1955	118 days
1956	75 days
1957	20 days
1958	36 days
1959	96 days
1960	103 days
1961	136 days
1962	102 days
1963	160 days
1964	167 days
1965	136 days
1966	91 days
1967	129 days
1968	76 days
1969	114 days
1970	69 days
1971	77 days
1972	141 days
1973	84 days
1974	54 days
1975	132 days
1976	91 days
1977	164 days
1978	77 days
1979	79 days
1980	66 days
1981	148 days
1982	59 days
1983	126 days
1984	91 days
1985	124 days
1986	71 days
1987	65 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, 1949 to 1985

A day with at least 58.3 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 169.9 mm (6.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Zapotitlan: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	58.3 mm (2.3 in)
5 years	93.5 mm (3.7 in)
10 years	114.5 mm (4.5 in)
25 years	138.6 mm (5.5 in)
50 years	154.9 mm (6.1 in)	Longer than the 31 years of record
100 years	169.9 mm (6.7 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 1949 to 1985.

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: 136.9 mm (5.4 in) in 1970; 134.4 mm (5.3 in) in 1959; 127.3 mm (5.0 in) in 1976.

Download the Data

Data for Zapotitlan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Zapotitlan 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 2026-10-15 (15 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).

Year	Days with data	Share of year	Complete
1980	74	20%	No
1981	306	84%	No
1982	189	52%	No
1983	365	100%	Yes
1984	242	66%	No
1985	365	100%	Yes
1986	303	83%	No
1987	272	75%	No