San Juan Tetelcingo (Cfe) Weather Records (MXN00012067)

Record envelope, standing records and threshold days for San Juan Tetelcingo (Cfe) (MXN00012067), Mexico, with 40 years of record.

Key Facts for San Juan Tetelcingo (Cfe)

San Juan Tetelcingo (Cfe) (MXN00012067) is a weather station in Mexico at 17.92 latitude and -99.52 longitude, 471 m (1,545 ft) above sea level.
The station reports from 1961 to 2000, 40 years of record.
1,464 records set at San Juan Tetelcingo (Cfe) still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
San Juan Tetelcingo (Cfe) tied a daily record low minimum temperature of 14.4 C (57.9 F) on 24 December 2000.

About the Station

Location: Mexico, 17.92 latitude, -99.52 longitude.
Elevation: 471 m (1,545 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 San Juan Tetelcingo (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 San Juan Tetelcingo (Cfe), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	40.0 C (104.0 F)	8.9 C (48.0 F)	n/a	n/a
Feb	41.1 C (106.0 F)	10.6 C (51.1 F)	n/a	n/a
Mar	43.9 C (111.0 F)	15.6 C (60.1 F)	n/a	n/a
Apr	44.4 C (111.9 F)	17.2 C (63.0 F)	n/a	n/a
May	45.6 C (114.1 F)	18.9 C (66.0 F)	n/a	n/a
Jun	43.9 C (111.0 F)	15.0 C (59.0 F)	n/a	n/a
Jul	39.4 C (102.9 F)	18.9 C (66.0 F)	n/a	n/a
Aug	38.9 C (102.0 F)	17.8 C (64.0 F)	n/a	n/a
Sep	40.0 C (104.0 F)	17.2 C (63.0 F)	n/a	n/a
Oct	40.0 C (104.0 F)	11.7 C (53.1 F)	n/a	n/a
Nov	40.6 C (105.1 F)	10.0 C (50.0 F)	n/a	n/a
Dec	38.9 C (102.0 F)	9.4 C (48.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Juan Tetelcingo (Cfe) still stand. 1989 holds the most, with 78.

Standing records at San Juan Tetelcingo (Cfe) by the year they were set
Year set	Standing records
1961	46
1962	41
1963	39
1964	48
1965	38
1966	30
1967	41
1968	41
1969	71
1970	35
1971	25
1972	50
1973	43
1974	20
1975	27
1976	37
1977	47
1978	27
1979	56
1980	41
1981	37
1982	66
1983	64
1984	12
1985	20
1986	62
1987	62
1988	33
1989	78
1990	28
1995	23
1996	31
1997	30
1998	44
1999	43
2000	28

All-Time Record Progression

1 new records

1 all-time records were set at San Juan Tetelcingo (Cfe) between 8 May 1998 and 8 May 1998. Each dot is a new record.

Wettest Day of Each Month

Aug: 74.9 mm (2.9 in)

The wettest day on record for each calendar month at San Juan Tetelcingo (Cfe). The most was 74.9 mm (2.9 in) on 9 August 1973.

Record daily precipitation for each month at San Juan Tetelcingo (Cfe)
Month	Record daily precipitation (mm)	Date
Jan	45.0 mm (1.8 in)	10 January 1967
Feb	9.1 mm (0.36 in)	20 February 1990
Mar	19.8 mm (0.8 in)	31 March 1976
Apr	35.3 mm (1.4 in)	21 April 1982
May	52.8 mm (2.1 in)	31 May 1975
Jun	71.9 mm (2.8 in)	22 June 1973
Jul	52.8 mm (2.1 in)	29 July 1970
Aug	74.9 mm (2.9 in)	9 August 1973
Sep	57.9 mm (2.3 in)	8 September 1971
Oct	55.9 mm (2.2 in)	10 October 1976
Nov	40.9 mm (1.6 in)	2 November 1970
Dec	30.5 mm (1.2 in)	3 December 1968

Period of Record Coverage

1961 to 2000

36 years of record at San Juan Tetelcingo (Cfe), 1961 to 2000. 2 years have data for under 90 percent of days and are left out of rankings: 1984, 1988.

Days with data per year at San Juan Tetelcingo (Cfe)
Year	Days with data	Share of year	Complete
1961	334	92%	Yes
1962	364	100%	Yes
1963	365	100%	Yes
1964	336	92%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	363	99%	Yes
1968	366	100%	Yes
1969	363	99%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	364	100%	Yes
1974	364	100%	Yes
1975	365	100%	Yes
1976	364	99%	Yes
1977	365	100%	Yes
1978	363	99%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	363	99%	Yes
1982	365	100%	Yes
1983	362	99%	Yes
1984	121	33%	No
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	305	83%	No
1989	365	100%	Yes
1990	363	99%	Yes
1995	363	99%	Yes
1996	365	100%	Yes
1997	363	99%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes

Latest Records

Latest records at San Juan Tetelcingo (Cfe)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 December 2000	San Juan Tetelcingo (Cfe), MX	daily low min (Tie)	14.4 C (57.9 F)	tie	12 years	1 of 100 (Routine)
26 November 2000	San Juan Tetelcingo (Cfe), MX	daily rain	2.3 mm (0.09 in)	2.0 mm (0.08 in)	27 years	14 of 100 (Routine)
19 November 2000	San Juan Tetelcingo (Cfe), MX	daily rain	2.3 mm (0.09 in)	2.3 mm (0.09 in)	39 years	17 of 100 (Routine)
13 November 2000	San Juan Tetelcingo (Cfe), MX	daily high max (Tie)	37.8 C (100.0 F)	tie	31 years	3 of 100 (Routine)
10 October 2000	San Juan Tetelcingo (Cfe), MX	daily low min (Tie)	18.9 C (66.0 F)	tie	36 years	3 of 100 (Routine)
22 September 2000	San Juan Tetelcingo (Cfe), MX	daily low min (Tie)	20.6 C (69.1 F)	tie	30 years	3 of 100 (Routine)
21 September 2000	San Juan Tetelcingo (Cfe), MX	daily low min (Tie)	20.0 C (68.0 F)	tie	30 years	3 of 100 (Routine)
19 September 2000	San Juan Tetelcingo (Cfe), MX	daily low max	26.7 C (80.1 F)	3.9 C (7.0 F)	38 years	35 of 100 (Notable)
18 September 2000	San Juan Tetelcingo (Cfe), MX	daily low min	20.6 C (69.1 F)	0.5 C (0.9 F)	30 years	16 of 100 (Routine)
17 September 2000	San Juan Tetelcingo (Cfe), MX	daily low min	20.6 C (69.1 F)	0.5 C (0.9 F)	11 years	10 of 100 (Routine)
13 September 2000	San Juan Tetelcingo (Cfe), MX	daily low min (Tie)	20.6 C (69.1 F)	tie	14 years	2 of 100 (Routine)
12 September 2000	San Juan Tetelcingo (Cfe), MX	daily low min	20.0 C (68.0 F)	1.1 C (2.0 F)	26 years	19 of 100 (Routine)
11 September 2000	San Juan Tetelcingo (Cfe), MX	daily rain	35.6 mm (1.4 in)	20.6 mm (0.8 in)	32 years	33 of 100 (Routine)
6 September 2000	San Juan Tetelcingo (Cfe), MX	daily low min (Tie)	20.6 C (69.1 F)	tie	15 years	2 of 100 (Routine)
29 August 2000	San Juan Tetelcingo (Cfe), MX	daily rain	43.7 mm (1.7 in)	1.8 mm (0.07 in)	39 years	16 of 100 (Routine)
27 August 2000	San Juan Tetelcingo (Cfe), MX	daily high max (Tie)	37.8 C (100.0 F)	tie	22 years	2 of 100 (Routine)
21 August 2000	San Juan Tetelcingo (Cfe), MX	daily low min (Tie)	20.6 C (69.1 F)	tie	11 years	1 of 100 (Routine)
20 August 2000	San Juan Tetelcingo (Cfe), MX	daily high max (Tie)	36.1 C (97.0 F)	tie	14 years	2 of 100 (Routine)
19 August 2000	San Juan Tetelcingo (Cfe), MX	monthly low min (Tie)	17.8 C (64.0 F)	tie	0 years	3 of 100 (Routine)
18 August 2000	San Juan Tetelcingo (Cfe), MX	monthly low min (Tie)	17.8 C (64.0 F)	tie	0 years	3 of 100 (Routine)

Climate Trend

32 complete years, 1962 to 2000

One stripe for each of 32 complete years at San Juan Tetelcingo (Cfe), 1962 to 2000. Blue stripes are years cooler than the station's own mean of 28.8 C (83.9 F); red stripes are warmer. The coolest year was 1996, at 27.6 C (81.7 F), and the warmest was 1982, at 30.1 C (86.2 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at San Juan Tetelcingo (Cfe) as warming stripes, 1962 to 2000
Year	Annual mean temperature	Difference from the station mean
1962	28.6 C	-0.23 C
1963	28.5 C	-0.37 C
1965	28.4 C	-0.40 C
1966	28.5 C	-0.32 C
1967	28.5 C	-0.35 C
1968	29.0 C	+0.11 C
1969	29.8 C	+0.94 C
1970	29.0 C	+0.13 C
1971	29.0 C	+0.14 C
1972	29.4 C	+0.56 C
1973	29.0 C	+0.18 C
1974	29.1 C	+0.21 C
1975	28.9 C	+0.06 C
1976	29.1 C	+0.24 C
1977	29.4 C	+0.53 C
1978	29.1 C	+0.28 C
1979	29.5 C	+0.67 C
1980	29.7 C	+0.83 C
1981	29.3 C	+0.42 C
1982	30.1 C	+1.26 C
1983	29.5 C	+0.62 C
1985	29.1 C	+0.26 C
1986	29.1 C	+0.29 C
1987	28.8 C	-0.04 C
1989	27.7 C	-1.11 C
1990	27.9 C	-0.99 C
1995	28.7 C	-0.18 C
1996	27.6 C	-1.21 C
1997	28.3 C	-0.52 C
1998	28.8 C	-0.04 C
1999	27.8 C	-1.04 C
2000	28.0 C	-0.81 C

The annual mean temperature here has fallen by 0.20 C (0.01 to 0.38) per decade over 1962 to 2000. In Fahrenheit: 0.36 F (0.03 to 0.69) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at San Juan Tetelcingo (Cfe)
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.20 C (-0.38 to -0.01) per decade	-0.36 F (-0.69 to -0.03) per decade	1962 to 2000	32	Fall
Mean daily maximum	0.1 C (-0.1 to 0.3) per decade	0.2 F (-0.2 to 0.6) per decade	1962 to 2000	32	Not clearly different from zero
Mean daily minimum	-0.5 C (-0.7 to -0.3) per decade	-0.9 F (-1.3 to -0.6) per decade	1962 to 2000	32	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 San Juan Tetelcingo (Cfe): 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)	1998	42.5 C (108.5 F)	36
Coldest night (TNn)	8.9 C (48.0 F)	1986	12.8 C (55.0 F)	36
Wettest day (Rx1day)	74.9 mm (2.9 in)	1973	46.0 mm (1.8 in)	36
Wettest five days (Rx5day)	130.1 mm (5.1 in)	1976	79.7 mm (3.1 in)	36
Longest dry spell (CDD)	146 days	1998	94 days	36

Hottest day (TXx)

The hottest day of the year at San Juan Tetelcingo (Cfe), 1961 to 2000. The record is 45.6 C (114.1 F) in 1998, marked on the chart; the median year is 42.5 C (108.5 F).

Hottest day (TXx) at San Juan Tetelcingo (Cfe) by year
Year	Hottest day (TXx)
1961	41.7 C (107.1 F)
1962	40.6 C (105.1 F)
1963	41.7 C (107.1 F)
1964	41.7 C (107.1 F)
1965	40.6 C (105.1 F)
1966	42.2 C (108.0 F)
1967	42.2 C (108.0 F)
1968	42.8 C (109.0 F)
1969	42.8 C (109.0 F)
1970	43.3 C (109.9 F)
1971	42.8 C (109.0 F)
1972	42.8 C (109.0 F)
1973	42.8 C (109.0 F)
1974	43.3 C (109.9 F)
1975	41.7 C (107.1 F)
1976	43.3 C (109.9 F)
1977	42.2 C (108.0 F)
1978	43.3 C (109.9 F)
1979	42.2 C (108.0 F)
1980	43.9 C (111.0 F)
1981	42.8 C (109.0 F)
1982	44.4 C (111.9 F)
1983	43.9 C (111.0 F)
1984	38.9 C (102.0 F)
1985	42.2 C (108.0 F)
1986	43.9 C (111.0 F)
1987	43.9 C (111.0 F)
1988	43.9 C (111.0 F)
1989	41.7 C (107.1 F)
1990	41.7 C (107.1 F)
1995	42.2 C (108.0 F)
1996	41.7 C (107.1 F)
1997	41.1 C (106.0 F)
1998	45.6 C (114.1 F)
1999	42.8 C (109.0 F)
2000	42.2 C (108.0 F)

Coldest night (TNn)

The coldest night of the year at San Juan Tetelcingo (Cfe), 1961 to 2000. The record is 8.9 C (48.0 F) in 1986, marked on the chart; the median year is 12.8 C (55.0 F).

Coldest night (TNn) at San Juan Tetelcingo (Cfe) by year
Year	Coldest night (TNn)
1961	10.0 C (50.0 F)
1962	13.9 C (57.0 F)
1963	13.9 C (57.0 F)
1964	15.0 C (59.0 F)
1965	12.8 C (55.0 F)
1966	12.2 C (54.0 F)
1967	10.0 C (50.0 F)
1968	13.9 C (57.0 F)
1969	12.2 C (54.0 F)
1970	12.8 C (55.0 F)
1971	13.9 C (57.0 F)
1972	12.8 C (55.0 F)
1973	12.8 C (55.0 F)
1974	14.4 C (57.9 F)
1975	15.0 C (59.0 F)
1976	14.4 C (57.9 F)
1977	13.9 C (57.0 F)
1978	15.6 C (60.1 F)
1979	13.9 C (57.0 F)
1980	12.2 C (54.0 F)
1981	12.8 C (55.0 F)
1982	12.8 C (55.0 F)
1983	13.3 C (55.9 F)
1984	11.7 C (53.1 F)
1985	15.0 C (59.0 F)
1986	8.9 C (48.0 F)
1987	8.9 C (48.0 F)
1988	12.8 C (55.0 F)
1989	9.4 C (48.9 F)
1990	11.7 C (53.1 F)
1995	12.2 C (54.0 F)
1996	10.0 C (50.0 F)
1997	10.6 C (51.1 F)
1998	10.6 C (51.1 F)
1999	10.0 C (50.0 F)
2000	12.2 C (54.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Juan Tetelcingo (Cfe), 1961 to 2000. The record is 74.9 mm (2.9 in) in 1973, marked on the chart; the median year is 46.0 mm (1.8 in).

Wettest day (Rx1day) at San Juan Tetelcingo (Cfe) by year
Year	Wettest day (Rx1day)
1961	49.8 mm (2.0 in)
1962	36.3 mm (1.4 in)
1963	25.9 mm (1.0 in)
1964	34.8 mm (1.4 in)
1965	38.9 mm (1.5 in)
1966	49.8 mm (2.0 in)
1967	45.0 mm (1.8 in)
1968	30.5 mm (1.2 in)
1969	46.0 mm (1.8 in)
1970	52.8 mm (2.1 in)
1971	57.9 mm (2.3 in)
1972	65.8 mm (2.6 in)
1973	74.9 mm (2.9 in)
1974	46.0 mm (1.8 in)
1975	52.8 mm (2.1 in)
1976	55.9 mm (2.2 in)
1977	47.8 mm (1.9 in)
1978	40.4 mm (1.6 in)
1979	37.1 mm (1.5 in)
1980	33.3 mm (1.3 in)
1981	47.8 mm (1.9 in)
1982	39.9 mm (1.6 in)
1983	31.0 mm (1.2 in)
1984	15.0 mm (0.6 in)
1985	50.3 mm (2.0 in)
1986	41.1 mm (1.6 in)
1987	47.0 mm (1.9 in)
1988	48.8 mm (1.9 in)
1989	57.2 mm (2.3 in)
1990	42.4 mm (1.7 in)
1995	44.5 mm (1.8 in)
1996	42.9 mm (1.7 in)
1997	51.8 mm (2.0 in)
1998	45.0 mm (1.8 in)
1999	54.9 mm (2.2 in)
2000	52.1 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Juan Tetelcingo (Cfe), 1961 to 2000. The record is 130.1 mm (5.1 in) in 1976, marked on the chart; the median year is 79.7 mm (3.1 in).

Wettest five days (Rx5day) at San Juan Tetelcingo (Cfe) by year
Year	Wettest five days (Rx5day)
1961	76.0 mm (3.0 in)
1962	68.3 mm (2.7 in)
1963	51.1 mm (2.0 in)
1964	56.2 mm (2.2 in)
1965	66.1 mm (2.6 in)
1966	100.7 mm (4.0 in)
1967	100.4 mm (4.0 in)
1968	54.7 mm (2.2 in)
1969	101.1 mm (4.0 in)
1970	118.8 mm (4.7 in)
1971	64.3 mm (2.5 in)
1972	122.7 mm (4.8 in)
1973	109.5 mm (4.3 in)
1974	106.9 mm (4.2 in)
1975	69.3 mm (2.7 in)
1976	130.1 mm (5.1 in)
1977	54.9 mm (2.2 in)
1978	82.0 mm (3.2 in)
1979	79.5 mm (3.1 in)
1980	86.6 mm (3.4 in)
1981	82.4 mm (3.2 in)
1982	57.2 mm (2.3 in)
1983	67.6 mm (2.7 in)
1984	15.0 mm (0.6 in)
1985	101.4 mm (4.0 in)
1986	91.8 mm (3.6 in)
1987	67.6 mm (2.7 in)
1988	57.2 mm (2.3 in)
1989	91.4 mm (3.6 in)
1990	73.9 mm (2.9 in)
1995	72.9 mm (2.9 in)
1996	79.8 mm (3.1 in)
1997	96.9 mm (3.8 in)
1998	67.3 mm (2.6 in)
1999	128.4 mm (5.1 in)
2000	106.9 mm (4.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Juan Tetelcingo (Cfe), 1961 to 2000. The record is 146 days in 1998, marked on the chart; the median year is 94 days.

Longest dry spell (CDD) at San Juan Tetelcingo (Cfe) by year
Year	Longest dry spell (CDD)
1961	120 days
1962	105 days
1963	78 days
1964	123 days
1965	96 days
1966	68 days
1967	89 days
1968	47 days
1969	132 days
1970	96 days
1971	63 days
1972	108 days
1973	94 days
1974	78 days
1975	107 days
1976	90 days
1977	112 days
1978	65 days
1979	133 days
1980	99 days
1981	85 days
1982	73 days
1983	85 days
1984	61 days
1985	101 days
1986	111 days
1987	109 days
1988	81 days
1989	94 days
1990	52 days
1995	86 days
1996	68 days
1997	77 days
1998	146 days
1999	106 days
2000	128 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

34 years, 1961 to 2000

A day with at least 45.7 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 70.6 mm (2.8 in) of rain is expected about once in 100 years.

Rainfall return levels at San Juan Tetelcingo (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	45.7 mm (1.8 in)
5 years	54.7 mm (2.2 in)
10 years	59.5 mm (2.3 in)
25 years	64.7 mm (2.5 in)
50 years	67.9 mm (2.7 in)	Longer than the 34 years of record
100 years	70.6 mm (2.8 in)	Longer than the 34 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, 34 years of values from 1961 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: 74.9 mm (2.9 in) in 1973; 65.8 mm (2.6 in) in 1972; 57.9 mm (2.3 in) in 1971.

Download the Data

Data for San Juan Tetelcingo (Cfe) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Juan Tetelcingo (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 2026-10-17 (17 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).