Santa Maria Zacatepec (Cfe) Weather Records (MXN00020188)

Record envelope, standing records and threshold days for Santa Maria Zacatepec (Cfe) (MXN00020188), Mexico, with 40 years of record.

Key Facts for Santa Maria Zacatepec (Cfe)

Santa Maria Zacatepec (Cfe) (MXN00020188) is a weather station in Mexico at 16.75 latitude and -97.98 longitude, 354 m (1,161 ft) above sea level.
The station reports from 1961 to 2000, 40 years of record.
1,464 records set at Santa Maria Zacatepec (Cfe) still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Santa Maria Zacatepec (Cfe) set a daily record low minimum temperature of 15.6 C (60.1 F) on 19 October 2000.

About the Station

Location: Mexico, 16.75 latitude, -97.98 longitude.
Elevation: 354 m (1,161 ft).
Period of record: 1961 to 2000, 40 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 Santa Maria Zacatepec (Cfe). 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 Santa Maria Zacatepec (Cfe), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	41.1 C (106.0 F)	5.6 C (42.1 F)	n/a	n/a
Feb	43.9 C (111.0 F)	7.2 C (45.0 F)	n/a	n/a
Mar	45.0 C (113.0 F)	7.2 C (45.0 F)	n/a	n/a
Apr	48.3 C (118.9 F)	6.7 C (44.1 F)	n/a	n/a
May	48.9 C (120.0 F)	9.4 C (48.9 F)	n/a	n/a
Jun	48.3 C (118.9 F)	11.7 C (53.1 F)	n/a	n/a
Jul	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Aug	42.2 C (108.0 F)	8.9 C (48.0 F)	n/a	n/a
Sep	41.7 C (107.1 F)	11.1 C (52.0 F)	n/a	n/a
Oct	42.8 C (109.0 F)	11.7 C (53.1 F)	n/a	n/a
Nov	40.6 C (105.1 F)	8.9 C (48.0 F)	n/a	n/a
Dec	44.4 C (111.9 F)	8.3 C (46.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Santa Maria Zacatepec (Cfe) still stand. 1980 holds the most, with 255.

Standing records at Santa Maria Zacatepec (Cfe) by the year they were set
Year set	Standing records
1961	134
1962	45
1963	29
1964	14
1965	8
1966	32
1967	67
1968	92
1969	58
1970	55
1971	38
1972	56
1973	52
1974	2
1975	1
1976	5
1977	6
1978	3
1979	55
1980	255
1981	108
1982	5
1983	4
1984	2
1986	1
1987	1
1988	13
1989	5
1990	38
1991	159
1992	24
1993	81
1994	3
1995	1
1996	1
1997	1
1998	2
1999	3
2000	5

All-Time Record Progression

2 new records

2 all-time records were set at Santa Maria Zacatepec (Cfe) between 31 May 1993 and 25 September 1998. Each dot is a new record.

When Santa Maria Zacatepec (Cfe) set new all-time records
Date	Kind	Detail
1993-05-31	Record high maximum temperature	Record high maximum temperature 48.9 C (120.0 F)
1998-09-25	Record daily precipitation	Record daily precipitation 139.7 mm (5.5 in)

Wettest Day of Each Month

Sep: 139.7 mm (5.5 in)

The wettest day on record for each calendar month at Santa Maria Zacatepec (Cfe). The most was 139.7 mm (5.5 in) on 25 September 1998.

Record daily precipitation for each month at Santa Maria Zacatepec (Cfe)
Month	Record daily precipitation (mm)	Date
Jan	41.4 mm (1.6 in)	28 January 1995
Feb	46.0 mm (1.8 in)	25 February 1983
Mar	24.6 mm (1.0 in)	15 March 1966
Apr	35.8 mm (1.4 in)	22 April 1987
May	104.6 mm (4.1 in)	27 May 1997
Jun	110.0 mm (4.3 in)	7 June 1981
Jul	120.4 mm (4.7 in)	20 July 1989
Aug	115.8 mm (4.6 in)	13 August 1983
Sep	139.7 mm (5.5 in)	25 September 1998
Oct	80.8 mm (3.2 in)	1 October 1991
Nov	68.1 mm (2.7 in)	3 November 1961
Dec	40.4 mm (1.6 in)	5 December 1968

Period of Record Coverage

1961 to 2000

40 years of record at Santa Maria Zacatepec (Cfe), 1961 to 2000. 4 years have data for under 90 percent of days and are left out of rankings: 1961, 1966, 1984, 1986.

Days with data per year at Santa Maria Zacatepec (Cfe)
Year	Days with data	Share of year	Complete
1961	142	39%	No
1962	365	100%	Yes
1963	363	99%	Yes
1964	364	99%	Yes
1965	343	94%	Yes
1966	301	82%	No
1967	365	100%	Yes
1968	366	100%	Yes
1969	364	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	363	99%	Yes
1979	363	99%	Yes
1980	364	99%	Yes
1981	364	100%	Yes
1982	365	100%	Yes
1983	363	99%	Yes
1984	62	17%	No
1985	365	100%	Yes
1986	273	75%	No
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	359	98%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	347	95%	Yes
1994	334	92%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes

Latest Records

Latest records at Santa Maria Zacatepec (Cfe)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 October 2000	Santa Maria Zacatepec (Cfe), MX	daily low min	15.6 C (60.1 F)	1.1 C (2.0 F)	10 years	11 of 100 (Routine)
18 October 2000	Santa Maria Zacatepec (Cfe), MX	daily low min	16.7 C (62.1 F)	1.1 C (2.0 F)	9 years	10 of 100 (Routine)
23 September 2000	Santa Maria Zacatepec (Cfe), MX	daily rain	39.9 mm (1.6 in)	1.8 mm (0.07 in)	19 years	9 of 100 (Routine)
17 September 2000	Santa Maria Zacatepec (Cfe), MX	daily low min	15.6 C (60.1 F)	1.1 C (2.0 F)	20 years	15 of 100 (Routine)
29 July 2000	Santa Maria Zacatepec (Cfe), MX	daily high min (Tie)	23.3 C (73.9 F)	tie	30 years	3 of 100 (Routine)
30 April 2000	Santa Maria Zacatepec (Cfe), MX	daily high max	44.4 C (111.9 F)	1.1 C (2.0 F)	19 years	11 of 100 (Routine)
21 April 2000	Santa Maria Zacatepec (Cfe), MX	daily high max	43.3 C (109.9 F)	0.5 C (0.9 F)	7 years	7 of 100 (Routine)
24 January 2000	Santa Maria Zacatepec (Cfe), MX	daily high max (Tie)	38.3 C (100.9 F)	tie	8 years	1 of 100 (Routine)
18 December 1999	Santa Maria Zacatepec (Cfe), MX	daily high max (Tie)	38.9 C (102.0 F)	tie	20 years	2 of 100 (Routine)
30 October 1999	Santa Maria Zacatepec (Cfe), MX	daily low min (Tie)	16.1 C (61.0 F)	tie	18 years	2 of 100 (Routine)
23 October 1999	Santa Maria Zacatepec (Cfe), MX	daily low min	15.0 C (59.0 F)	1.1 C (2.0 F)	18 years	12 of 100 (Routine)
18 September 1999	Santa Maria Zacatepec (Cfe), MX	daily high max	38.9 C (102.0 F)	1.7 C (3.1 F)	6 years	10 of 100 (Routine)
9 September 1999	Santa Maria Zacatepec (Cfe), MX	daily low min (Tie)	15.0 C (59.0 F)	tie	18 years	2 of 100 (Routine)
17 August 1999	Santa Maria Zacatepec (Cfe), MX	daily high max	38.9 C (102.0 F)	3.3 C (5.9 F)	5 years	13 of 100 (Routine)
18 January 1999	Santa Maria Zacatepec (Cfe), MX	daily high max (Tie)	39.4 C (102.9 F)	tie	17 years	2 of 100 (Routine)
19 October 1998	Santa Maria Zacatepec (Cfe), MX	daily rain	39.9 mm (1.6 in)	13.2 mm (0.5 in)	33 years	21 of 100 (Routine)
18 October 1998	Santa Maria Zacatepec (Cfe), MX	daily rain (Tie)	19.8 mm (0.8 in)	tie	36 years	3 of 100 (Routine)
8 October 1998	Santa Maria Zacatepec (Cfe), MX	daily rain	59.9 mm (2.4 in)	13.4 mm (0.5 in)	12 years	14 of 100 (Routine)
25 September 1998	Santa Maria Zacatepec (Cfe), MX	all-time rain	139.7 mm (5.5 in)	5.3 mm (0.21 in)	37 years	37 of 100 (Notable)
15 September 1998	Santa Maria Zacatepec (Cfe), MX	daily rain	103.9 mm (4.1 in)	63.5 mm (2.5 in)	31 years	49 of 100 (Notable)

Climate Trend

31 complete years, 1962 to 2000

One stripe for each of 31 complete years at Santa Maria Zacatepec (Cfe), 1962 to 2000. Blue stripes are years cooler than the station's own mean of 26.1 C (79.0 F); red stripes are warmer. The coolest year was 1991, at 24.1 C (75.4 F), and the warmest was 1980, at 27.5 C (81.5 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Santa Maria Zacatepec (Cfe) as warming stripes, 1962 to 2000
Year	Annual mean temperature	Difference from the station mean
1962	25.9 C	-0.23 C
1963	26.6 C	+0.53 C
1964	26.0 C	-0.07 C
1969	25.4 C	-0.67 C
1970	25.7 C	-0.40 C
1971	25.3 C	-0.76 C
1972	25.4 C	-0.71 C
1973	25.5 C	-0.57 C
1974	26.5 C	+0.42 C
1975	26.5 C	+0.37 C
1976	26.6 C	+0.55 C
1977	26.7 C	+0.63 C
1978	26.6 C	+0.48 C
1979	26.9 C	+0.84 C
1980	27.5 C	+1.41 C
1981	26.1 C	+0.03 C
1982	25.6 C	-0.53 C
1983	24.9 C	-1.15 C
1985	25.1 C	-0.97 C
1987	26.0 C	-0.08 C
1988	25.9 C	-0.20 C
1989	25.3 C	-0.82 C
1990	26.0 C	-0.13 C
1991	24.1 C	-1.96 C
1992	26.9 C	+0.79 C
1995	27.1 C	+1.00 C
1996	26.2 C	+0.09 C
1997	26.9 C	+0.84 C
1998	25.9 C	-0.23 C
1999	26.6 C	+0.52 C
2000	27.2 C	+1.08 C

The fitted trend in annual mean temperature here over 1962 to 2000 is 0.1 C (-0.1 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.3 to 0.6) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Santa Maria Zacatepec (Cfe)
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (-0.1 to 0.4) per decade	0.2 F (-0.3 to 0.6) per decade	1962 to 2000	31	Not clearly different from zero
Mean daily maximum	1.5 C (0.7 to 2.2) per decade	2.6 F (1.2 to 4.0) per decade	1962 to 2000	31	Rise
Mean daily minimum	-1.2 C (-1.9 to -0.6) per decade	-2.2 F (-3.4 to -1.1) per decade	1962 to 2000	31	Fall

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

1961 to 2000

Yearly extremes at Santa Maria Zacatepec (Cfe): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.9 C (120.0 F)	1993	38.9 C (102.0 F)	40
Coldest night (TNn)	5.6 C (42.1 F)	1991	11.7 C (53.1 F)	40
Wettest day (Rx1day)	139.7 mm (5.5 in)	1998	75.4 mm (3.0 in)	40
Wettest five days (Rx5day)	277.7 mm (10.9 in)	1982	181.8 mm (7.2 in)	40
Longest dry spell (CDD)	185 days	1993	96 days	40

Hottest day (TXx)

The hottest day of the year at Santa Maria Zacatepec (Cfe), 1961 to 2000. The record is 48.9 C (120.0 F) in 1993, marked on the chart; the median year is 38.9 C (102.0 F).

Hottest day (TXx) at Santa Maria Zacatepec (Cfe) by year
Year	Hottest day (TXx)
1961	35.6 C (96.1 F)
1962	33.3 C (91.9 F)
1963	33.3 C (91.9 F)
1964	31.1 C (88.0 F)
1965	29.4 C (84.9 F)
1966	28.3 C (82.9 F)
1967	28.3 C (82.9 F)
1968	28.9 C (84.0 F)
1969	32.2 C (90.0 F)
1970	32.2 C (90.0 F)
1971	32.2 C (90.0 F)
1972	32.8 C (91.0 F)
1973	35.6 C (96.1 F)
1974	42.2 C (108.0 F)
1975	41.7 C (107.1 F)
1976	40.6 C (105.1 F)
1977	41.7 C (107.1 F)
1978	41.7 C (107.1 F)
1979	43.3 C (109.9 F)
1980	45.0 C (113.0 F)
1981	48.3 C (118.9 F)
1982	41.1 C (106.0 F)
1983	38.9 C (102.0 F)
1984	35.6 C (96.1 F)
1985	38.3 C (100.9 F)
1986	38.3 C (100.9 F)
1987	38.3 C (100.9 F)
1988	39.4 C (102.9 F)
1989	37.8 C (100.0 F)
1990	44.4 C (111.9 F)
1991	40.0 C (104.0 F)
1992	41.7 C (107.1 F)
1993	48.9 C (120.0 F)
1994	40.0 C (104.0 F)
1995	39.4 C (102.9 F)
1996	38.3 C (100.9 F)
1997	38.9 C (102.0 F)
1998	38.9 C (102.0 F)
1999	39.4 C (102.9 F)
2000	44.4 C (111.9 F)

Coldest night (TNn)

The coldest night of the year at Santa Maria Zacatepec (Cfe), 1961 to 2000. The record is 5.6 C (42.1 F) in 1991, marked on the chart; the median year is 11.7 C (53.1 F).

Coldest night (TNn) at Santa Maria Zacatepec (Cfe) by year
Year	Coldest night (TNn)
1961	13.9 C (57.0 F)
1962	20.0 C (68.0 F)
1963	20.0 C (68.0 F)
1964	21.7 C (71.1 F)
1965	22.2 C (72.0 F)
1966	22.2 C (72.0 F)
1967	21.7 C (71.1 F)
1968	20.0 C (68.0 F)
1969	20.6 C (69.1 F)
1970	21.1 C (70.0 F)
1971	21.7 C (71.1 F)
1972	20.0 C (68.0 F)
1973	10.0 C (50.0 F)
1974	11.1 C (52.0 F)
1975	12.8 C (55.0 F)
1976	11.7 C (53.1 F)
1977	10.0 C (50.0 F)
1978	11.1 C (52.0 F)
1979	8.9 C (48.0 F)
1980	8.3 C (46.9 F)
1981	7.2 C (45.0 F)
1982	11.1 C (52.0 F)
1983	10.0 C (50.0 F)
1984	10.0 C (50.0 F)
1985	12.8 C (55.0 F)
1986	7.8 C (46.0 F)
1987	9.4 C (48.9 F)
1988	11.7 C (53.1 F)
1989	10.6 C (51.1 F)
1990	8.9 C (48.0 F)
1991	5.6 C (42.1 F)
1992	10.6 C (51.1 F)
1993	12.2 C (54.0 F)
1994	15.0 C (59.0 F)
1995	13.9 C (57.0 F)
1996	11.7 C (53.1 F)
1997	12.8 C (55.0 F)
1998	10.0 C (50.0 F)
1999	15.0 C (59.0 F)
2000	11.7 C (53.1 F)

Wettest day (Rx1day)

The wettest day of the year at Santa Maria Zacatepec (Cfe), 1961 to 2000. The record is 139.7 mm (5.5 in) in 1998, marked on the chart; the median year is 75.4 mm (3.0 in).

Wettest day (Rx1day) at Santa Maria Zacatepec (Cfe) by year
Year	Wettest day (Rx1day)
1961	134.4 mm (5.3 in)
1962	95.0 mm (3.7 in)
1963	74.9 mm (2.9 in)
1964	62.0 mm (2.4 in)
1965	60.7 mm (2.4 in)
1966	61.2 mm (2.4 in)
1967	70.6 mm (2.8 in)
1968	61.0 mm (2.4 in)
1969	64.3 mm (2.5 in)
1970	66.3 mm (2.6 in)
1971	62.0 mm (2.4 in)
1972	84.3 mm (3.3 in)
1973	96.5 mm (3.8 in)
1974	68.3 mm (2.7 in)
1975	97.5 mm (3.8 in)
1976	83.3 mm (3.3 in)
1977	78.2 mm (3.1 in)
1978	20.3 mm (0.8 in)
1979	70.4 mm (2.8 in)
1980	52.8 mm (2.1 in)
1981	110.0 mm (4.3 in)
1982	126.0 mm (5.0 in)
1983	115.8 mm (4.6 in)
1984	20.8 mm (0.8 in)
1985	75.9 mm (3.0 in)
1986	77.0 mm (3.0 in)
1987	102.9 mm (4.1 in)
1988	75.9 mm (3.0 in)
1989	120.4 mm (4.7 in)
1990	89.9 mm (3.5 in)
1991	100.1 mm (3.9 in)
1992	20.3 mm (0.8 in)
1993	6.9 mm (0.27 in)
1994	31.5 mm (1.2 in)
1995	69.9 mm (2.8 in)
1996	92.5 mm (3.6 in)
1997	104.6 mm (4.1 in)
1998	139.7 mm (5.5 in)
1999	39.9 mm (1.6 in)
2000	43.9 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Santa Maria Zacatepec (Cfe), 1961 to 2000. The record is 277.7 mm (10.9 in) in 1982, marked on the chart; the median year is 181.8 mm (7.2 in).

Wettest five days (Rx5day) at Santa Maria Zacatepec (Cfe) by year
Year	Wettest five days (Rx5day)
1961	273.8 mm (10.8 in)
1962	159.1 mm (6.3 in)
1963	172.3 mm (6.8 in)
1964	140.2 mm (5.5 in)
1965	191.3 mm (7.5 in)
1966	211.1 mm (8.3 in)
1967	228.3 mm (9.0 in)
1968	175.0 mm (6.9 in)
1969	216.7 mm (8.5 in)
1970	233.0 mm (9.2 in)
1971	208.6 mm (8.2 in)
1972	245.3 mm (9.7 in)
1973	240.9 mm (9.5 in)
1974	172.0 mm (6.8 in)
1975	181.5 mm (7.1 in)
1976	182.1 mm (7.2 in)
1977	156.2 mm (6.1 in)
1978	65.9 mm (2.6 in)
1979	164.6 mm (6.5 in)
1980	136.9 mm (5.4 in)
1981	206.8 mm (8.1 in)
1982	277.7 mm (10.9 in)
1983	185.2 mm (7.3 in)
1984	27.7 mm (1.1 in)
1985	128.7 mm (5.1 in)
1986	124.0 mm (4.9 in)
1987	224.8 mm (8.9 in)
1988	203.4 mm (8.0 in)
1989	194.1 mm (7.6 in)
1990	188.0 mm (7.4 in)
1991	211.4 mm (8.3 in)
1992	39.1 mm (1.5 in)
1993	19.2 mm (0.8 in)
1994	54.9 mm (2.2 in)
1995	123.9 mm (4.9 in)
1996	197.9 mm (7.8 in)
1997	143.5 mm (5.6 in)
1998	274.8 mm (10.8 in)
1999	100.9 mm (4.0 in)
2000	81.5 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Santa Maria Zacatepec (Cfe), 1961 to 2000. The record is 185 days in 1993, marked on the chart; the median year is 96 days.

Longest dry spell (CDD) at Santa Maria Zacatepec (Cfe) by year
Year	Longest dry spell (CDD)
1961	31 days
1962	74 days
1963	88 days
1964	130 days
1965	152 days
1966	78 days
1967	143 days
1968	75 days
1969	168 days
1970	139 days
1971	147 days
1972	145 days
1973	95 days
1974	96 days
1975	88 days
1976	90 days
1977	111 days
1978	130 days
1979	89 days
1980	72 days
1981	51 days
1982	59 days
1983	72 days
1984	22 days
1985	66 days
1986	76 days
1987	78 days
1988	132 days
1989	121 days
1990	84 days
1991	141 days
1992	66 days
1993	185 days
1994	106 days
1995	74 days
1996	114 days
1997	133 days
1998	181 days
1999	158 days
2000	152 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

37 years, 1962 to 2000

A day with at least 76.3 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 138.5 mm (5.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Santa Maria Zacatepec (Cfe): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	76.3 mm (3.0 in)
5 years	102.1 mm (4.0 in)
10 years	114.6 mm (4.5 in)
25 years	126.5 mm (5.0 in)
50 years	133.2 mm (5.2 in)	Longer than the 37 years of record
100 years	138.5 mm (5.5 in)	Longer than the 37 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, 37 years of values from 1962 to 2000.

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: 139.7 mm (5.5 in) in 1998; 126.0 mm (5.0 in) in 1982; 120.4 mm (4.7 in) in 1989.

Download the Data

Data for Santa Maria Zacatepec (Cfe) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Santa Maria Zacatepec (Cfe) 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).