San Juan Totolapan Weather Records (MXN00015210)

Record envelope, standing records and threshold days for San Juan Totolapan (MXN00015210), Mexico, with 37 years of record.

Key Facts for San Juan Totolapan

San Juan Totolapan (MXN00015210) is a weather station in Mexico at 19.52 latitude and -98.72 longitude, 2,750 m (9,022 ft) above sea level.
The station reports from 1976 to 2012, 37 years of record.
1,464 records set at San Juan Totolapan still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 19.52 latitude, -98.72 longitude.
Elevation: 2,750 m (9,022 ft).
Period of record: 1976 to 2012, 37 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 San Juan Totolapan. 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 Totolapan, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.6 C (78.1 F)	0.0 C (32.0 F)	n/a	n/a
Feb	27.8 C (82.0 F)	-2.2 C (28.0 F)	n/a	n/a
Mar	28.9 C (84.0 F)	-1.1 C (30.0 F)	n/a	n/a
Apr	27.8 C (82.0 F)	1.7 C (35.1 F)	n/a	n/a
May	30.0 C (86.0 F)	1.7 C (35.1 F)	n/a	n/a
Jun	28.9 C (84.0 F)	1.7 C (35.1 F)	n/a	n/a
Jul	30.0 C (86.0 F)	1.7 C (35.1 F)	n/a	n/a
Aug	30.0 C (86.0 F)	5.0 C (41.0 F)	n/a	n/a
Sep	25.0 C (77.0 F)	0.0 C (32.0 F)	n/a	n/a
Oct	26.7 C (80.1 F)	-4.4 C (24.1 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-4.4 C (24.1 F)	n/a	n/a
Dec	25.0 C (77.0 F)	0.0 C (32.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Juan Totolapan still stand. 1977 holds the most, with 101.

Standing records at San Juan Totolapan by the year they were set
Year set	Standing records
1976	36
1977	101
1978	81
1979	74
1980	63
1981	46
1982	39
1983	82
1984	66
1985	52
1986	53
1987	70
1988	60
1996	9
1997	49
1998	71
1999	38
2001	35
2002	45
2003	50
2004	43
2005	53
2006	36
2007	29
2008	32
2009	32
2010	40
2011	52
2012	27

Wettest Day of Each Month

Jun: 88.9 mm (3.5 in)

The wettest day on record for each calendar month at San Juan Totolapan. The most was 88.9 mm (3.5 in) on 30 June 2011.

Record daily precipitation for each month at San Juan Totolapan
Month	Record daily precipitation (mm)	Date
Jan	22.4 mm (0.9 in)	26 January 2007
Feb	30.0 mm (1.2 in)	17 February 2010
Mar	51.8 mm (2.0 in)	4 March 1988
Apr	22.9 mm (0.9 in)	13 April 1981
May	39.9 mm (1.6 in)	13 May 1977
Jun	88.9 mm (3.5 in)	30 June 2011
Jul	42.9 mm (1.7 in)	7 July 1977
Aug	78.5 mm (3.1 in)	22 August 2007
Sep	62.0 mm (2.4 in)	13 September 2004
Oct	39.9 mm (1.6 in)	25 October 1977
Nov	19.8 mm (0.8 in)	12 November 2006
Dec	10.9 mm (0.4 in)	2 December 1976

Period of Record Coverage

1976 to 2012

29 years of record at San Juan Totolapan, 1976 to 2012. 4 years have data for under 90 percent of days and are left out of rankings: 1976, 1996, 2001, 2010.

Days with data per year at San Juan Totolapan
Year	Days with data	Share of year	Complete
1976	180	49%	No
1977	364	100%	Yes
1978	363	99%	Yes
1979	334	92%	Yes
1980	365	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	365	100%	Yes
1985	363	99%	Yes
1986	364	100%	Yes
1987	364	100%	Yes
1988	335	92%	Yes
1996	152	42%	No
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2001	273	75%	No
2002	362	99%	Yes
2003	334	92%	Yes
2004	365	100%	Yes
2005	364	100%	Yes
2006	364	100%	Yes
2007	363	99%	Yes
2008	365	100%	Yes
2009	334	92%	Yes
2010	243	67%	No
2011	363	99%	Yes
2012	366	100%	Yes

Latest Records

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

Climate Trend

21 complete years, 1977 to 2012

One stripe for each of 21 complete years at San Juan Totolapan, 1977 to 2012. Blue stripes are years cooler than the station's own mean of 13.4 C (56.2 F); red stripes are warmer. The coolest year was 1985, at 12.6 C (54.6 F), and the warmest was 1998, at 14.4 C (58.0 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at San Juan Totolapan as warming stripes, 1977 to 2012
Year	Annual mean temperature	Difference from the station mean
1977	13.6 C	+0.15 C
1978	12.9 C	-0.51 C
1980	13.2 C	-0.24 C
1981	12.8 C	-0.60 C
1982	13.6 C	+0.19 C
1983	13.4 C	-0.03 C
1984	12.8 C	-0.69 C
1985	12.6 C	-0.88 C
1986	13.1 C	-0.33 C
1987	13.5 C	+0.05 C
1997	13.1 C	-0.38 C
1998	14.4 C	+1.00 C
1999	12.8 C	-0.63 C
2002	14.4 C	+0.93 C
2004	13.6 C	+0.12 C
2005	14.2 C	+0.73 C
2006	13.6 C	+0.15 C
2007	13.5 C	+0.04 C
2008	13.2 C	-0.20 C
2011	14.3 C	+0.89 C
2012	13.8 C	+0.33 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

1976 to 2012

Yearly extremes at San Juan Totolapan: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	30.0 C (86.0 F)	1983	26.7 C (80.1 F)	29
Coldest night (TNn)	-4.4 C (24.1 F)	1981	0.0 C (32.0 F)	29
Wettest day (Rx1day)	88.9 mm (3.5 in)	2011	37.8 mm (1.5 in)	29
Wettest five days (Rx5day)	122.4 mm (4.8 in)	2011	61.5 mm (2.4 in)	29
Longest dry spell (CDD)	111 days	1986	55 days	29

Hottest day (TXx)

The hottest day of the year at San Juan Totolapan, 1976 to 2012. The record is 30.0 C (86.0 F) in 1983, marked on the chart; the median year is 26.7 C (80.1 F).

Hottest day (TXx) at San Juan Totolapan by year
Year	Hottest day (TXx)
1976	22.8 C (73.0 F)
1977	27.8 C (82.0 F)
1978	28.9 C (84.0 F)
1979	27.8 C (82.0 F)
1980	26.7 C (80.1 F)
1981	26.7 C (80.1 F)
1982	26.7 C (80.1 F)
1983	30.0 C (86.0 F)
1984	26.7 C (80.1 F)
1985	25.6 C (78.1 F)
1986	25.6 C (78.1 F)
1987	26.7 C (80.1 F)
1988	30.0 C (86.0 F)
1996	25.0 C (77.0 F)
1997	25.0 C (77.0 F)
1998	30.0 C (86.0 F)
1999	25.6 C (78.1 F)
2001	28.9 C (84.0 F)
2002	30.0 C (86.0 F)
2003	30.0 C (86.0 F)
2004	26.7 C (80.1 F)
2005	28.9 C (84.0 F)
2006	28.9 C (84.0 F)
2007	25.6 C (78.1 F)
2008	26.7 C (80.1 F)
2009	26.7 C (80.1 F)
2010	30.0 C (86.0 F)
2011	27.8 C (82.0 F)
2012	26.7 C (80.1 F)

Coldest night (TNn)

The coldest night of the year at San Juan Totolapan, 1976 to 2012. The record is -4.4 C (24.1 F) in 1981, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at San Juan Totolapan by year
Year	Coldest night (TNn)
1976	1.7 C (35.1 F)
1977	0.0 C (32.0 F)
1978	-2.2 C (28.0 F)
1979	0.6 C (33.1 F)
1980	0.0 C (32.0 F)
1981	-4.4 C (24.1 F)
1982	1.7 C (35.1 F)
1983	0.0 C (32.0 F)
1984	0.0 C (32.0 F)
1985	-4.4 C (24.1 F)
1986	0.0 C (32.0 F)
1987	0.0 C (32.0 F)
1988	0.0 C (32.0 F)
1996	0.0 C (32.0 F)
1997	0.0 C (32.0 F)
1998	0.0 C (32.0 F)
1999	0.0 C (32.0 F)
2001	0.0 C (32.0 F)
2002	0.0 C (32.0 F)
2003	0.0 C (32.0 F)
2004	0.0 C (32.0 F)
2005	0.0 C (32.0 F)
2006	0.0 C (32.0 F)
2007	0.0 C (32.0 F)
2008	0.0 C (32.0 F)
2009	0.0 C (32.0 F)
2010	0.6 C (33.1 F)
2011	0.0 C (32.0 F)
2012	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at San Juan Totolapan, 1976 to 2012. The record is 88.9 mm (3.5 in) in 2011, marked on the chart; the median year is 37.8 mm (1.5 in).

Wettest day (Rx1day) at San Juan Totolapan by year
Year	Wettest day (Rx1day)
1976	41.9 mm (1.6 in)
1977	42.9 mm (1.7 in)
1978	41.9 mm (1.6 in)
1979	35.8 mm (1.4 in)
1980	31.0 mm (1.2 in)
1981	34.8 mm (1.4 in)
1982	24.4 mm (1.0 in)
1983	48.3 mm (1.9 in)
1984	29.0 mm (1.1 in)
1985	36.3 mm (1.4 in)
1986	46.0 mm (1.8 in)
1987	27.9 mm (1.1 in)
1988	51.8 mm (2.0 in)
1996	14.5 mm (0.6 in)
1997	20.8 mm (0.8 in)
1998	35.3 mm (1.4 in)
1999	37.8 mm (1.5 in)
2001	49.3 mm (1.9 in)
2002	23.4 mm (0.9 in)
2003	29.5 mm (1.2 in)
2004	62.0 mm (2.4 in)
2005	29.0 mm (1.1 in)
2006	39.9 mm (1.6 in)
2007	78.5 mm (3.1 in)
2008	47.8 mm (1.9 in)
2009	43.9 mm (1.7 in)
2010	41.9 mm (1.6 in)
2011	88.9 mm (3.5 in)
2012	19.3 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Juan Totolapan, 1976 to 2012. The record is 122.4 mm (4.8 in) in 2011, marked on the chart; the median year is 61.5 mm (2.4 in).

Wettest five days (Rx5day) at San Juan Totolapan by year
Year	Wettest five days (Rx5day)
1976	83.6 mm (3.3 in)
1977	60.0 mm (2.4 in)
1978	117.5 mm (4.6 in)
1979	45.5 mm (1.8 in)
1980	47.8 mm (1.9 in)
1981	79.5 mm (3.1 in)
1982	58.0 mm (2.3 in)
1983	101.4 mm (4.0 in)
1984	79.4 mm (3.1 in)
1985	48.5 mm (1.9 in)
1986	49.6 mm (2.0 in)
1987	61.5 mm (2.4 in)
1988	93.7 mm (3.7 in)
1996	15.5 mm (0.6 in)
1997	54.4 mm (2.1 in)
1998	83.3 mm (3.3 in)
1999	99.1 mm (3.9 in)
2001	60.4 mm (2.4 in)
2002	60.7 mm (2.4 in)
2003	60.6 mm (2.4 in)
2004	88.4 mm (3.5 in)
2005	56.4 mm (2.2 in)
2006	49.0 mm (1.9 in)
2007	96.5 mm (3.8 in)
2008	85.2 mm (3.4 in)
2009	90.4 mm (3.6 in)
2010	106.9 mm (4.2 in)
2011	122.4 mm (4.8 in)
2012	43.5 mm (1.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Juan Totolapan, 1976 to 2012. The record is 111 days in 1986, marked on the chart; the median year is 55 days.

Longest dry spell (CDD) at San Juan Totolapan by year
Year	Longest dry spell (CDD)
1976	44 days
1977	73 days
1978	43 days
1979	36 days
1980	34 days
1981	58 days
1982	79 days
1983	58 days
1984	40 days
1985	44 days
1986	111 days
1987	85 days
1988	51 days
1996	81 days
1997	65 days
1998	93 days
1999	35 days
2001	55 days
2002	46 days
2003	90 days
2004	70 days
2005	53 days
2006	82 days
2007	39 days
2008	76 days
2009	38 days
2010	40 days
2011	35 days
2012	56 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 San Juan Totolapan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Juan Totolapan 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).