Coxcatlan Weather Records (MXN00021030)

Record envelope, standing records and threshold days for Coxcatlan (MXN00021030), Mexico, with 31 years of record.

Key Facts for Coxcatlan

Coxcatlan (MXN00021030) is a weather station in Mexico at 18.27 latitude and -97.15 longitude, 1,118 m (3,667 ft) above sea level.
The station reports from 1950 to 1980, 31 years of record.
1,464 records set at Coxcatlan 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, -97.15 longitude.
Elevation: 1,118 m (3,667 ft).
Period of record: 1950 to 1980, 31 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 Coxcatlan. 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 Coxcatlan, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.9 C (102.0 F)	3.9 C (39.0 F)	n/a	n/a
Feb	40.0 C (104.0 F)	2.2 C (36.0 F)	n/a	n/a
Mar	42.8 C (109.0 F)	6.7 C (44.1 F)	n/a	n/a
Apr	45.6 C (114.1 F)	5.6 C (42.1 F)	n/a	n/a
May	42.8 C (109.0 F)	7.2 C (45.0 F)	n/a	n/a
Jun	45.6 C (114.1 F)	6.7 C (44.1 F)	n/a	n/a
Jul	42.8 C (109.0 F)	6.7 C (44.1 F)	n/a	n/a
Aug	41.7 C (107.1 F)	8.9 C (48.0 F)	n/a	n/a
Sep	41.7 C (107.1 F)	5.6 C (42.1 F)	n/a	n/a
Oct	40.0 C (104.0 F)	6.7 C (44.1 F)	n/a	n/a
Nov	37.8 C (100.0 F)	5.6 C (42.1 F)	n/a	n/a
Dec	40.0 C (104.0 F)	5.0 C (41.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Coxcatlan still stand. 1957 holds the most, with 132.

Standing records at Coxcatlan by the year they were set
Year set	Standing records
1950	76
1951	88
1952	130
1953	82
1954	71
1955	64
1956	83
1957	132
1958	102
1959	20
1960	30
1961	39
1962	29
1963	64
1964	59
1965	79
1968	28
1969	24
1970	32
1971	25
1972	17
1973	25
1974	4
1975	20
1976	30
1977	24
1978	42
1979	26
1980	19

Wettest Day of Each Month

Sep: 140.0 mm (5.5 in)

The wettest day on record for each calendar month at Coxcatlan. The most was 140.0 mm (5.5 in) on 19 September 1960.

Record daily precipitation for each month at Coxcatlan
Month	Record daily precipitation (mm)	Date
Jan	27.9 mm (1.1 in)	19 January 1969
Feb	17.8 mm (0.7 in)	28 February 1979
Mar	11.9 mm (0.5 in)	19 March 1969
Apr	48.3 mm (1.9 in)	30 April 1952
May	47.5 mm (1.9 in)	31 May 1950
Jun	79.2 mm (3.1 in)	25 June 1953
Jul	46.5 mm (1.8 in)	8 July 1951
Aug	66.3 mm (2.6 in)	16 August 1954
Sep	140.0 mm (5.5 in)	19 September 1960
Oct	56.4 mm (2.2 in)	10 October 1950
Nov	29.0 mm (1.1 in)	1 November 1977
Dec	11.9 mm (0.5 in)	4 December 1965

Period of Record Coverage

1950 to 1980

29 years of record at Coxcatlan, 1950 to 1980. 7 years have data for under 90 percent of days and are left out of rankings: 1950, 1954, 1956, 1957, 1968, 1974, 1980.

Days with data per year at Coxcatlan
Year	Days with data	Share of year	Complete
1950	321	88%	No
1951	365	100%	Yes
1952	366	100%	Yes
1953	363	99%	Yes
1954	303	83%	No
1955	365	100%	Yes
1956	304	83%	No
1957	309	85%	No
1958	334	92%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	334	92%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1968	274	75%	No
1969	364	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	335	92%	Yes
1973	365	100%	Yes
1974	273	75%	No
1975	356	98%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	363	99%	Yes
1979	363	99%	Yes
1980	152	42%	No

Latest Records

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

Climate Trend

15 complete years, 1951 to 1979

One stripe for each of 15 complete years at Coxcatlan, 1951 to 1979. Blue stripes are years cooler than the station's own mean of 23.7 C (74.7 F); red stripes are warmer. The coolest year was 1976, at 21.9 C (71.5 F), and the warmest was 1964, at 26.0 C (78.9 F). The strongest colour marks a difference of 2.4 C (4.3 F).

Annual mean temperature at Coxcatlan as warming stripes, 1951 to 1979
Year	Annual mean temperature	Difference from the station mean
1951	22.2 C	-1.53 C
1952	22.1 C	-1.59 C
1953	23.2 C	-0.53 C
1955	22.1 C	-1.67 C
1959	25.1 C	+1.37 C
1960	25.2 C	+1.46 C
1961	24.4 C	+0.66 C
1962	25.5 C	+1.78 C
1964	26.0 C	+2.31 C
1970	25.3 C	+1.57 C
1975	23.8 C	+0.08 C
1976	21.9 C	-1.78 C
1977	23.1 C	-0.67 C
1978	23.1 C	-0.60 C
1979	22.8 C	-0.92 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

1950 to 1980

Yearly extremes at Coxcatlan: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.6 C (114.1 F)	1964	41.7 C (107.1 F)	29
Coldest night (TNn)	2.2 C (36.0 F)	1956	6.7 C (44.1 F)	29
Wettest day (Rx1day)	140.0 mm (5.5 in)	1960	39.9 mm (1.6 in)	29
Wettest five days (Rx5day)	239.3 mm (9.4 in)	1955	89.9 mm (3.5 in)	29
Longest dry spell (CDD)	167 days	1963	97 days	29

Hottest day (TXx)

The hottest day of the year at Coxcatlan, 1950 to 1980. The record is 45.6 C (114.1 F) in 1964, marked on the chart; the median year is 41.7 C (107.1 F).

Hottest day (TXx) at Coxcatlan by year
Year	Hottest day (TXx)
1950	41.7 C (107.1 F)
1951	41.7 C (107.1 F)
1952	42.8 C (109.0 F)
1953	42.8 C (109.0 F)
1954	41.7 C (107.1 F)
1955	40.0 C (104.0 F)
1956	40.0 C (104.0 F)
1957	40.0 C (104.0 F)
1958	42.2 C (108.0 F)
1959	40.6 C (105.1 F)
1960	41.7 C (107.1 F)
1961	42.8 C (109.0 F)
1962	41.7 C (107.1 F)
1963	40.6 C (105.1 F)
1964	45.6 C (114.1 F)
1965	45.6 C (114.1 F)
1968	41.7 C (107.1 F)
1969	42.8 C (109.0 F)
1970	43.9 C (111.0 F)
1971	42.8 C (109.0 F)
1972	41.7 C (107.1 F)
1973	42.8 C (109.0 F)
1974	41.7 C (107.1 F)
1975	41.1 C (106.0 F)
1976	38.3 C (100.9 F)
1977	38.3 C (100.9 F)
1978	40.0 C (104.0 F)
1979	38.3 C (100.9 F)
1980	38.3 C (100.9 F)

Coldest night (TNn)

The coldest night of the year at Coxcatlan, 1950 to 1980. The record is 2.2 C (36.0 F) in 1956, marked on the chart; the median year is 6.7 C (44.1 F).

Coldest night (TNn) at Coxcatlan by year
Year	Coldest night (TNn)
1950	7.8 C (46.0 F)
1951	3.9 C (39.0 F)
1952	6.7 C (44.1 F)
1953	3.9 C (39.0 F)
1954	6.7 C (44.1 F)
1955	5.6 C (42.1 F)
1956	2.2 C (36.0 F)
1957	5.0 C (41.0 F)
1958	4.4 C (39.9 F)
1959	7.8 C (46.0 F)
1960	6.7 C (44.1 F)
1961	5.6 C (42.1 F)
1962	8.3 C (46.9 F)
1963	10.6 C (51.1 F)
1964	10.6 C (51.1 F)
1965	7.8 C (46.0 F)
1968	6.7 C (44.1 F)
1969	8.9 C (48.0 F)
1970	5.6 C (42.1 F)
1971	8.3 C (46.9 F)
1972	6.7 C (44.1 F)
1973	5.0 C (41.0 F)
1974	7.8 C (46.0 F)
1975	6.7 C (44.1 F)
1976	5.0 C (41.0 F)
1977	6.1 C (43.0 F)
1978	8.9 C (48.0 F)
1979	6.7 C (44.1 F)
1980	10.0 C (50.0 F)

Wettest day (Rx1day)

The wettest day of the year at Coxcatlan, 1950 to 1980. The record is 140.0 mm (5.5 in) in 1960, marked on the chart; the median year is 39.9 mm (1.6 in).

Wettest day (Rx1day) at Coxcatlan by year
Year	Wettest day (Rx1day)
1950	56.4 mm (2.2 in)
1951	46.5 mm (1.8 in)
1952	48.3 mm (1.9 in)
1953	79.2 mm (3.1 in)
1954	66.3 mm (2.6 in)
1955	58.4 mm (2.3 in)
1956	42.9 mm (1.7 in)
1957	30.0 mm (1.2 in)
1958	18.3 mm (0.7 in)
1959	34.8 mm (1.4 in)
1960	140.0 mm (5.5 in)
1961	64.8 mm (2.6 in)
1962	39.9 mm (1.6 in)
1963	6.1 mm (0.24 in)
1964	34.8 mm (1.4 in)
1965	32.3 mm (1.3 in)
1968	37.8 mm (1.5 in)
1969	46.7 mm (1.8 in)
1970	39.9 mm (1.6 in)
1971	19.8 mm (0.8 in)
1972	24.9 mm (1.0 in)
1973	46.0 mm (1.8 in)
1974	37.8 mm (1.5 in)
1975	24.1 mm (0.9 in)
1976	42.9 mm (1.7 in)
1977	29.0 mm (1.1 in)
1978	63.5 mm (2.5 in)
1979	31.0 mm (1.2 in)
1980	16.8 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Coxcatlan, 1950 to 1980. The record is 239.3 mm (9.4 in) in 1955, marked on the chart; the median year is 89.9 mm (3.5 in).

Wettest five days (Rx5day) at Coxcatlan by year
Year	Wettest five days (Rx5day)
1950	149.9 mm (5.9 in)
1951	107.7 mm (4.2 in)
1952	123.2 mm (4.9 in)
1953	95.5 mm (3.8 in)
1954	97.3 mm (3.8 in)
1955	239.3 mm (9.4 in)
1956	98.2 mm (3.9 in)
1957	37.9 mm (1.5 in)
1958	33.8 mm (1.3 in)
1959	72.1 mm (2.8 in)
1960	140.8 mm (5.5 in)
1961	66.6 mm (2.6 in)
1962	82.3 mm (3.2 in)
1963	6.9 mm (0.27 in)
1964	45.0 mm (1.8 in)
1965	36.8 mm (1.4 in)
1968	110.6 mm (4.4 in)
1969	138.8 mm (5.5 in)
1970	109.5 mm (4.3 in)
1971	84.6 mm (3.3 in)
1972	24.9 mm (1.0 in)
1973	127.2 mm (5.0 in)
1974	110.6 mm (4.4 in)
1975	89.9 mm (3.5 in)
1976	55.9 mm (2.2 in)
1977	54.0 mm (2.1 in)
1978	69.6 mm (2.7 in)
1979	112.1 mm (4.4 in)
1980	37.7 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Coxcatlan, 1950 to 1980. The record is 167 days in 1963, marked on the chart; the median year is 97 days.

Longest dry spell (CDD) at Coxcatlan by year
Year	Longest dry spell (CDD)
1950	88 days
1951	86 days
1952	75 days
1953	117 days
1954	51 days
1955	98 days
1956	86 days
1957	97 days
1958	80 days
1959	104 days
1960	129 days
1961	82 days
1962	101 days
1963	167 days
1964	131 days
1965	34 days
1968	98 days
1969	97 days
1970	131 days
1971	124 days
1972	94 days
1973	108 days
1974	120 days
1975	131 days
1976	94 days
1977	114 days
1978	56 days
1979	69 days
1980	70 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 Coxcatlan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Coxcatlan 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).