Tezoatlan de Segura Y Luna Weather Records (MXN00020163)

Record envelope, standing records and threshold days for Tezoatlan de Segura Y Luna (MXN00020163), Mexico, with 34 years of record.

Key Facts for Tezoatlan de Segura Y Luna

Tezoatlan de Segura Y Luna (MXN00020163) is a weather station in Mexico at 17.65 latitude and -97.80 longitude, 1,527 m (5,009 ft) above sea level.
The station reports from 1963 to 1996, 34 years of record.
1,464 records set at Tezoatlan de Segura Y Luna still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Tezoatlan de Segura Y Luna set a daily record precipitation of 24.4 mm (1.0 in) on 29 June 1995.

About the Station

Location: Mexico, 17.65 latitude, -97.80 longitude.
Elevation: 1,527 m (5,009 ft).
Period of record: 1963 to 1996, 34 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 Tezoatlan de Segura Y Luna. 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 Tezoatlan de Segura Y Luna, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.0 C (95.0 F)	-3.9 C (25.0 F)	n/a	n/a
Feb	37.8 C (100.0 F)	-2.2 C (28.0 F)	n/a	n/a
Mar	37.8 C (100.0 F)	0.6 C (33.1 F)	n/a	n/a
Apr	38.9 C (102.0 F)	2.8 C (37.0 F)	n/a	n/a
May	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Jun	37.8 C (100.0 F)	7.8 C (46.0 F)	n/a	n/a
Jul	35.0 C (95.0 F)	8.9 C (48.0 F)	n/a	n/a
Aug	33.9 C (93.0 F)	6.7 C (44.1 F)	n/a	n/a
Sep	32.8 C (91.0 F)	3.9 C (39.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	0.6 C (33.1 F)	n/a	n/a
Nov	35.0 C (95.0 F)	-1.1 C (30.0 F)	n/a	n/a
Dec	35.0 C (95.0 F)	-3.3 C (26.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tezoatlan de Segura Y Luna still stand. 1964 holds the most, with 167.

Standing records at Tezoatlan de Segura Y Luna by the year they were set
Year set	Standing records
1963	39
1964	167
1965	159
1966	88
1967	46
1968	42
1969	74
1970	38
1971	22
1972	32
1973	30
1974	31
1975	41
1976	98
1977	102
1978	28
1979	46
1980	42
1981	42
1982	30
1983	26
1984	25
1985	13
1986	30
1987	26
1988	11
1989	27
1990	22
1991	39
1992	28
1993	14
1994	4
1995	2

Wettest Day of Each Month

Jul: 77.5 mm (3.1 in)

The wettest day on record for each calendar month at Tezoatlan de Segura Y Luna. The most was 77.5 mm (3.1 in) on 9 July 1979.

Record daily precipitation for each month at Tezoatlan de Segura Y Luna
Month	Record daily precipitation (mm)	Date
Jan	37.3 mm (1.5 in)	22 January 1965
Feb	19.6 mm (0.8 in)	25 February 1983
Mar	23.9 mm (0.9 in)	13 March 1983
Apr	31.0 mm (1.2 in)	13 April 1973
May	66.3 mm (2.6 in)	29 May 1995
Jun	68.3 mm (2.7 in)	23 June 1994
Jul	77.5 mm (3.1 in)	9 July 1979
Aug	62.0 mm (2.4 in)	15 August 1973
Sep	60.5 mm (2.4 in)	3 September 1973
Oct	47.0 mm (1.9 in)	5 October 1965
Nov	31.5 mm (1.2 in)	2 November 1970
Dec	5.8 mm (0.23 in)	17 December 1967

Period of Record Coverage

1963 to 1995

33 years of record at Tezoatlan de Segura Y Luna, 1963 to 1995. 8 years have data for under 90 percent of days and are left out of rankings: 1963, 1985, 1986, 1988, 1989, 1990, 1994, 1995.

Days with data per year at Tezoatlan de Segura Y Luna
Year	Days with data	Share of year	Complete
1963	117	32%	No
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	335	92%	Yes
1972	366	100%	Yes
1973	348	95%	Yes
1974	330	90%	Yes
1975	336	92%	Yes
1976	347	95%	Yes
1977	346	95%	Yes
1978	364	100%	Yes
1979	364	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	334	92%	Yes
1984	366	100%	Yes
1985	212	58%	No
1986	304	83%	No
1987	365	100%	Yes
1988	327	89%	No
1989	290	79%	No
1990	321	88%	No
1991	364	100%	Yes
1992	337	92%	Yes
1993	348	95%	Yes
1994	270	74%	No
1995	75	21%	No

Latest Records

Latest records at Tezoatlan de Segura Y Luna
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 June 1995	Tezoatlan de Segura Y Luna, MX	daily rain	24.4 mm (1.0 in)	0.3 mm (0.01 in)	9 years	5 of 100 (Routine)
27 June 1995	Tezoatlan de Segura Y Luna, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	4 years	1 of 100 (Routine)
25 June 1995	Tezoatlan de Segura Y Luna, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	28 years	2 of 100 (Routine)
10 June 1995	Tezoatlan de Segura Y Luna, MX	daily low min	10.6 C (51.1 F)	1.1 C (2.0 F)	4 years	8 of 100 (Routine)
3 June 1995	Tezoatlan de Segura Y Luna, MX	daily low min (Tie)	10.6 C (51.1 F)	tie	18 years	2 of 100 (Routine)
1 June 1995	Tezoatlan de Segura Y Luna, MX	daily low min (Tie)	10.0 C (50.0 F)	tie	4 years	1 of 100 (Routine)
29 May 1995	Tezoatlan de Segura Y Luna, MX	monthly rain	66.3 mm (2.6 in)	18.0 mm (0.7 in)	10 years	36 of 100 (Notable)
4 May 1995	Tezoatlan de Segura Y Luna, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	29 years	2 of 100 (Routine)
29 April 1995	Tezoatlan de Segura Y Luna, MX	daily rain	17.8 mm (0.7 in)	12.5 mm (0.5 in)	21 years	20 of 100 (Routine)
23 April 1995	Tezoatlan de Segura Y Luna, MX	daily high max (Tie)	35.6 C (96.1 F)	tie	28 years	2 of 100 (Routine)
21 April 1995	Tezoatlan de Segura Y Luna, MX	daily high max (Tie)	35.6 C (96.1 F)	tie	20 years	2 of 100 (Routine)
10 April 1995	Tezoatlan de Segura Y Luna, MX	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	28 years	13 of 100 (Routine)
3 April 1995	Tezoatlan de Segura Y Luna, MX	daily high max (Tie)	35.6 C (96.1 F)	tie	12 years	1 of 100 (Routine)
6 September 1994	Tezoatlan de Segura Y Luna, MX	daily high max	30.6 C (87.1 F)	0.6 C (1.1 F)	29 years	13 of 100 (Routine)
3 September 1994	Tezoatlan de Segura Y Luna, MX	daily high max (Tie)	30.6 C (87.1 F)	tie	20 years	2 of 100 (Routine)
3 August 1994	Tezoatlan de Segura Y Luna, MX	daily rain	11.9 mm (0.5 in)	1.0 mm (0.04 in)	28 years	12 of 100 (Routine)
1 August 1994	Tezoatlan de Segura Y Luna, MX	daily rain	8.9 mm (0.35 in)	3.8 mm (0.15 in)	9 years	9 of 100 (Routine)
22 July 1994	Tezoatlan de Segura Y Luna, MX	daily high max (Tie)	30.6 C (87.1 F)	tie	28 years	2 of 100 (Routine)
21 July 1994	Tezoatlan de Segura Y Luna, MX	daily high max	31.7 C (89.1 F)	1.1 C (2.0 F)	3 years	8 of 100 (Routine)
2 July 1994	Tezoatlan de Segura Y Luna, MX	daily low min (Tie)	10.6 C (51.1 F)	tie	17 years	2 of 100 (Routine)

Climate Trend

15 complete years, 1964 to 1991

One stripe for each of 15 complete years at Tezoatlan de Segura Y Luna, 1964 to 1991. Blue stripes are years cooler than the station's own mean of 21.1 C (69.9 F); red stripes are warmer. The coolest year was 1984, at 19.9 C (67.8 F), and the warmest was 1964, at 22.8 C (73.0 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Tezoatlan de Segura Y Luna as warming stripes, 1964 to 1991
Year	Annual mean temperature	Difference from the station mean
1964	22.8 C	+1.71 C
1965	22.7 C	+1.65 C
1966	21.8 C	+0.67 C
1967	21.6 C	+0.53 C
1969	22.1 C	+1.05 C
1970	21.0 C	-0.10 C
1972	21.3 C	+0.26 C
1978	20.6 C	-0.44 C
1979	20.5 C	-0.58 C
1980	20.5 C	-0.55 C
1981	20.0 C	-1.11 C
1982	20.6 C	-0.49 C
1984	19.9 C	-1.20 C
1987	20.2 C	-0.92 C
1991	20.6 C	-0.44 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

1963 to 1996

Yearly extremes at Tezoatlan de Segura Y Luna: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	1964	35.6 C (96.1 F)	33
Coldest night (TNn)	-3.9 C (25.0 F)	1987	0.6 C (33.1 F)	33
Wettest day (Rx1day)	77.5 mm (3.1 in)	1979	42.2 mm (1.7 in)	34
Wettest five days (Rx5day)	182.2 mm (7.2 in)	1973	90.4 mm (3.6 in)	34
Longest dry spell (CDD)	134 days	1971	65 days	34

Hottest day (TXx)

The hottest day of the year at Tezoatlan de Segura Y Luna, 1963 to 1996. The record is 38.9 C (102.0 F) in 1964, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at Tezoatlan de Segura Y Luna by year
Year	Hottest day (TXx)
1963	31.7 C (89.1 F)
1964	38.9 C (102.0 F)
1965	37.8 C (100.0 F)
1966	36.7 C (98.1 F)
1967	35.6 C (96.1 F)
1968	35.0 C (95.0 F)
1969	37.8 C (100.0 F)
1970	35.6 C (96.1 F)
1971	35.6 C (96.1 F)
1972	35.6 C (96.1 F)
1973	37.8 C (100.0 F)
1974	35.0 C (95.0 F)
1975	37.8 C (100.0 F)
1976	35.6 C (96.1 F)
1977	38.9 C (102.0 F)
1978	38.9 C (102.0 F)
1979	37.8 C (100.0 F)
1980	37.8 C (100.0 F)
1981	35.6 C (96.1 F)
1982	35.6 C (96.1 F)
1983	35.6 C (96.1 F)
1984	36.7 C (98.1 F)
1985	33.9 C (93.0 F)
1986	35.6 C (96.1 F)
1987	35.0 C (95.0 F)
1988	35.6 C (96.1 F)
1989	35.6 C (96.1 F)
1990	35.0 C (95.0 F)
1991	35.6 C (96.1 F)
1992	35.6 C (96.1 F)
1993	37.8 C (100.0 F)
1994	35.6 C (96.1 F)
1995	35.6 C (96.1 F)
1996	n/a

Coldest night (TNn)

The coldest night of the year at Tezoatlan de Segura Y Luna, 1963 to 1996. The record is -3.9 C (25.0 F) in 1987, marked on the chart; the median year is 0.6 C (33.1 F).

Coldest night (TNn) at Tezoatlan de Segura Y Luna by year
Year	Coldest night (TNn)
1963	3.9 C (39.0 F)
1964	8.9 C (48.0 F)
1965	7.8 C (46.0 F)
1966	2.8 C (37.0 F)
1967	2.8 C (37.0 F)
1968	6.7 C (44.1 F)
1969	5.6 C (42.1 F)
1970	2.8 C (37.0 F)
1971	5.6 C (42.1 F)
1972	0.6 C (33.1 F)
1973	0.6 C (33.1 F)
1974	0.6 C (33.1 F)
1975	0.0 C (32.0 F)
1976	-2.2 C (28.0 F)
1977	-3.3 C (26.1 F)
1978	0.6 C (33.1 F)
1979	4.4 C (39.9 F)
1980	-3.3 C (26.1 F)
1981	-1.1 C (30.0 F)
1982	0.6 C (33.1 F)
1983	-2.8 C (27.0 F)
1984	-1.1 C (30.0 F)
1985	3.9 C (39.0 F)
1986	-2.2 C (28.0 F)
1987	-3.9 C (25.0 F)
1988	1.7 C (35.1 F)
1989	0.6 C (33.1 F)
1990	-1.1 C (30.0 F)
1991	5.0 C (41.0 F)
1992	0.0 C (32.0 F)
1993	3.9 C (39.0 F)
1994	0.6 C (33.1 F)
1995	10.0 C (50.0 F)
1996	n/a

Wettest day (Rx1day)

The wettest day of the year at Tezoatlan de Segura Y Luna, 1963 to 1996. The record is 77.5 mm (3.1 in) in 1979, marked on the chart; the median year is 42.2 mm (1.7 in).

Wettest day (Rx1day) at Tezoatlan de Segura Y Luna by year
Year	Wettest day (Rx1day)
1963	35.8 mm (1.4 in)
1964	41.4 mm (1.6 in)
1965	47.0 mm (1.9 in)
1966	42.9 mm (1.7 in)
1967	35.3 mm (1.4 in)
1968	36.8 mm (1.4 in)
1969	40.9 mm (1.6 in)
1970	31.5 mm (1.2 in)
1971	60.7 mm (2.4 in)
1972	50.8 mm (2.0 in)
1973	62.0 mm (2.4 in)
1974	33.8 mm (1.3 in)
1975	54.9 mm (2.2 in)
1976	39.9 mm (1.6 in)
1977	56.9 mm (2.2 in)
1978	48.3 mm (1.9 in)
1979	77.5 mm (3.1 in)
1980	25.4 mm (1.0 in)
1981	63.0 mm (2.5 in)
1982	45.2 mm (1.8 in)
1983	26.2 mm (1.0 in)
1984	50.3 mm (2.0 in)
1985	48.3 mm (1.9 in)
1986	45.0 mm (1.8 in)
1987	38.1 mm (1.5 in)
1988	30.5 mm (1.2 in)
1989	38.6 mm (1.5 in)
1990	29.0 mm (1.1 in)
1991	45.5 mm (1.8 in)
1992	20.6 mm (0.8 in)
1993	26.7 mm (1.1 in)
1994	68.3 mm (2.7 in)
1995	66.3 mm (2.6 in)
1996	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tezoatlan de Segura Y Luna, 1963 to 1996. The record is 182.2 mm (7.2 in) in 1973, marked on the chart; the median year is 90.4 mm (3.6 in).

Wettest five days (Rx5day) at Tezoatlan de Segura Y Luna by year
Year	Wettest five days (Rx5day)
1963	47.5 mm (1.9 in)
1964	54.6 mm (2.1 in)
1965	54.4 mm (2.1 in)
1966	55.1 mm (2.2 in)
1967	71.4 mm (2.8 in)
1968	90.0 mm (3.5 in)
1969	71.9 mm (2.8 in)
1970	96.8 mm (3.8 in)
1971	90.4 mm (3.6 in)
1972	117.2 mm (4.6 in)
1973	182.2 mm (7.2 in)
1974	93.1 mm (3.7 in)
1975	115.8 mm (4.6 in)
1976	87.4 mm (3.4 in)
1977	118.1 mm (4.6 in)
1978	76.6 mm (3.0 in)
1979	115.6 mm (4.6 in)
1980	90.4 mm (3.6 in)
1981	160.0 mm (6.3 in)
1982	92.5 mm (3.6 in)
1983	88.4 mm (3.5 in)
1984	68.8 mm (2.7 in)
1985	80.0 mm (3.1 in)
1986	84.3 mm (3.3 in)
1987	109.6 mm (4.3 in)
1988	111.8 mm (4.4 in)
1989	121.4 mm (4.8 in)
1990	103.1 mm (4.1 in)
1991	117.9 mm (4.6 in)
1992	59.0 mm (2.3 in)
1993	76.2 mm (3.0 in)
1994	127.0 mm (5.0 in)
1995	91.8 mm (3.6 in)
1996	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tezoatlan de Segura Y Luna, 1963 to 1996. The record is 134 days in 1971, marked on the chart; the median year is 65 days.

Longest dry spell (CDD) at Tezoatlan de Segura Y Luna by year
Year	Longest dry spell (CDD)
1963	66 days
1964	64 days
1965	66 days
1966	52 days
1967	78 days
1968	110 days
1969	62 days
1970	95 days
1971	134 days
1972	105 days
1973	95 days
1974	50 days
1975	98 days
1976	98 days
1977	66 days
1978	43 days
1979	50 days
1980	50 days
1981	62 days
1982	80 days
1983	64 days
1984	67 days
1985	51 days
1986	47 days
1987	92 days
1988	79 days
1989	48 days
1990	38 days
1991	111 days
1992	59 days
1993	119 days
1994	57 days
1995	19 days
1996	29 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 Tezoatlan de Segura Y Luna standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tezoatlan de Segura Y Luna 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).