Puente la Llave Weather Records (MXN00009068)

Record envelope, standing records and threshold days for Puente la Llave (MXN00009068), Mexico, with 37 years of record.

Key Facts for Puente la Llave

Puente la Llave (MXN00009068) is a weather station in Mexico at 19.42 latitude and -99.05 longitude, 2,234 m (7,329 ft) above sea level.
The station reports from 1976 to 2012, 37 years of record.
1,464 records set at Puente la Llave still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 19.42 latitude, -99.05 longitude.
Elevation: 2,234 m (7,329 ft).
Period of record: 1976 to 2012, 37 years.
Eligible elements: 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 Puente la Llave. 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 Puente la Llave, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	33.9 C (93.0 F)	-8.3 C (17.1 F)	n/a	n/a
Feb	31.7 C (89.1 F)	-1.1 C (30.0 F)	n/a	n/a
Mar	33.3 C (91.9 F)	-1.1 C (30.0 F)	n/a	n/a
Apr	35.0 C (95.0 F)	1.7 C (35.1 F)	n/a	n/a
May	35.0 C (95.0 F)	2.8 C (37.0 F)	n/a	n/a
Jun	32.8 C (91.0 F)	1.7 C (35.1 F)	n/a	n/a
Jul	30.6 C (87.1 F)	1.7 C (35.1 F)	n/a	n/a
Aug	30.6 C (87.1 F)	2.8 C (37.0 F)	n/a	n/a
Sep	32.8 C (91.0 F)	0.6 C (33.1 F)	n/a	n/a
Oct	30.6 C (87.1 F)	0.0 C (32.0 F)	n/a	n/a
Nov	30.6 C (87.1 F)	0.0 C (32.0 F)	n/a	n/a
Dec	27.8 C (82.0 F)	-1.1 C (30.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Puente la Llave still stand. 1993 holds the most, with 116.

Standing records at Puente la Llave by the year they were set
Year set	Standing records
1977	26
1978	114
1979	91
1980	108
1981	88
1982	53
1983	88
1984	25
1985	11
1986	17
1987	47
1988	36
1989	11
1993	116
1994	62
1995	57
1996	28
1997	65
1998	44
2001	45
2002	49
2003	41
2004	38
2005	17
2006	35
2007	18
2008	20
2011	78
2012	36

Wettest Day of Each Month

Jul: 116.8 mm (4.6 in)

The wettest day on record for each calendar month at Puente la Llave. The most was 116.8 mm (4.6 in) on 3 July 2012.

Record daily precipitation for each month at Puente la Llave
Month	Record daily precipitation (mm)	Date
Jan	41.9 mm (1.6 in)	5 January 1993
Feb	23.9 mm (0.9 in)	9 February 2012
Mar	32.3 mm (1.3 in)	16 March 1978
Apr	29.0 mm (1.1 in)	12 April 1985
May	19.8 mm (0.8 in)	13 May 1977
Jun	64.8 mm (2.6 in)	19 June 1977
Jul	116.8 mm (4.6 in)	3 July 2012
Aug	52.3 mm (2.1 in)	14 August 1980
Sep	57.9 mm (2.3 in)	29 September 2012
Oct	32.3 mm (1.3 in)	3 October 1978
Nov	35.3 mm (1.4 in)	9 November 2011
Dec	19.8 mm (0.8 in)	2 December 1976

Period of Record Coverage

1977 to 2012

29 years of record at Puente la Llave, 1977 to 2012. 6 years have data for under 90 percent of days and are left out of rankings: 1977, 1989, 1995, 2004, 2007, 2008.

Days with data per year at Puente la Llave
Year	Days with data	Share of year	Complete
1977	122	33%	No
1978	363	99%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	364	100%	Yes
1982	363	99%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	334	92%	Yes
1986	335	92%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	244	67%	No
1993	363	99%	Yes
1994	365	100%	Yes
1995	273	75%	No
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	364	100%	Yes
2004	305	83%	No
2005	365	100%	Yes
2006	365	100%	Yes
2007	212	58%	No
2008	303	83%	No
2011	365	100%	Yes
2012	366	100%	Yes

Latest Records

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

Climate Trend

20 complete years, 1978 to 2012

One stripe for each of 20 complete years at Puente la Llave, 1978 to 2012. Blue stripes are years cooler than the station's own mean of 14.9 C (58.8 F); red stripes are warmer. The coolest year was 2003, at 12.5 C (54.5 F), and the warmest was 1980, at 17.8 C (64.0 F). The strongest colour marks a difference of 3.0 C (5.4 F).

Annual mean temperature at Puente la Llave as warming stripes, 1978 to 2012
Year	Annual mean temperature	Difference from the station mean
1978	16.3 C	+1.44 C
1979	17.5 C	+2.65 C
1980	17.8 C	+2.91 C
1981	16.7 C	+1.81 C
1982	16.6 C	+1.68 C
1983	17.1 C	+2.26 C
1984	16.5 C	+1.61 C
1987	15.9 C	+1.02 C
1988	15.8 C	+0.96 C
1993	15.8 C	+0.88 C
1994	13.2 C	-1.64 C
1996	13.4 C	-1.52 C
1997	13.9 C	-0.99 C
1998	13.3 C	-1.57 C
2001	13.3 C	-1.63 C
2002	12.9 C	-2.02 C
2003	12.5 C	-2.37 C
2005	12.8 C	-2.13 C
2006	12.6 C	-2.29 C
2012	13.9 C	-1.00 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 Puente la Llave: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.0 C (95.0 F)	1983	31.7 C (89.1 F)	29
Coldest night (TNn)	-8.3 C (17.1 F)	1994	0.0 C (32.0 F)	29
Wettest day (Rx1day)	116.8 mm (4.6 in)	2012	28.7 mm (1.1 in)	30
Wettest five days (Rx5day)	135.4 mm (5.3 in)	2012	60.1 mm (2.4 in)	30
Longest dry spell (CDD)	192 days	1998	78 days	30

Hottest day (TXx)

The hottest day of the year at Puente la Llave, 1976 to 2012. The record is 35.0 C (95.0 F) in 1983, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Puente la Llave by year
Year	Hottest day (TXx)
1976	n/a
1977	26.7 C (80.1 F)
1978	31.7 C (89.1 F)
1979	32.8 C (91.0 F)
1980	33.3 C (91.9 F)
1981	33.3 C (91.9 F)
1982	32.2 C (90.0 F)
1983	35.0 C (95.0 F)
1984	34.4 C (93.9 F)
1985	30.0 C (86.0 F)
1986	31.7 C (89.1 F)
1987	30.0 C (86.0 F)
1988	32.8 C (91.0 F)
1989	32.8 C (91.0 F)
1993	35.0 C (95.0 F)
1994	31.1 C (88.0 F)
1995	28.9 C (84.0 F)
1996	30.6 C (87.1 F)
1997	35.0 C (95.0 F)
1998	31.7 C (89.1 F)
2001	29.4 C (84.9 F)
2002	29.4 C (84.9 F)
2003	28.9 C (84.0 F)
2004	29.4 C (84.9 F)
2005	29.4 C (84.9 F)
2006	29.4 C (84.9 F)
2007	28.9 C (84.0 F)
2008	28.9 C (84.0 F)
2011	35.0 C (95.0 F)
2012	31.7 C (89.1 F)

Coldest night (TNn)

The coldest night of the year at Puente la Llave, 1976 to 2012. The record is -8.3 C (17.1 F) in 1994, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at Puente la Llave by year
Year	Coldest night (TNn)
1976	n/a
1977	0.6 C (33.1 F)
1978	0.0 C (32.0 F)
1979	0.0 C (32.0 F)
1980	0.0 C (32.0 F)
1981	-2.2 C (28.0 F)
1982	0.0 C (32.0 F)
1983	0.0 C (32.0 F)
1984	0.6 C (33.1 F)
1985	0.0 C (32.0 F)
1986	-2.2 C (28.0 F)
1987	-2.2 C (28.0 F)
1988	0.0 C (32.0 F)
1989	0.0 C (32.0 F)
1993	-1.1 C (30.0 F)
1994	-8.3 C (17.1 F)
1995	1.1 C (34.0 F)
1996	0.0 C (32.0 F)
1997	0.0 C (32.0 F)
1998	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)
2011	0.0 C (32.0 F)
2012	0.0 C (32.0 F)

Wettest day (Rx1day)

The wettest day of the year at Puente la Llave, 1976 to 2012. The record is 116.8 mm (4.6 in) in 2012, marked on the chart; the median year is 28.7 mm (1.1 in).

Wettest day (Rx1day) at Puente la Llave by year
Year	Wettest day (Rx1day)
1976	28.4 mm (1.1 in)
1977	64.8 mm (2.6 in)
1978	32.3 mm (1.3 in)
1979	34.3 mm (1.4 in)
1980	52.3 mm (2.1 in)
1981	39.9 mm (1.6 in)
1982	54.4 mm (2.1 in)
1983	18.8 mm (0.7 in)
1984	25.4 mm (1.0 in)
1985	29.0 mm (1.1 in)
1986	56.4 mm (2.2 in)
1987	34.0 mm (1.3 in)
1988	30.0 mm (1.2 in)
1989	39.9 mm (1.6 in)
1993	41.9 mm (1.6 in)
1994	14.5 mm (0.6 in)
1995	11.7 mm (0.5 in)
1996	24.9 mm (1.0 in)
1997	23.9 mm (0.9 in)
1998	9.9 mm (0.39 in)
2001	6.6 mm (0.26 in)
2002	5.3 mm (0.21 in)
2003	34.8 mm (1.4 in)
2004	10.4 mm (0.4 in)
2005	18.8 mm (0.7 in)
2006	8.4 mm (0.33 in)
2007	10.4 mm (0.4 in)
2008	11.2 mm (0.4 in)
2011	43.9 mm (1.7 in)
2012	116.8 mm (4.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Puente la Llave, 1976 to 2012. The record is 135.4 mm (5.3 in) in 2012, marked on the chart; the median year is 60.1 mm (2.4 in).

Wettest five days (Rx5day) at Puente la Llave by year
Year	Wettest five days (Rx5day)
1976	61.7 mm (2.4 in)
1977	131.6 mm (5.2 in)
1978	71.7 mm (2.8 in)
1979	83.1 mm (3.3 in)
1980	63.8 mm (2.5 in)
1981	58.5 mm (2.3 in)
1982	54.4 mm (2.1 in)
1983	45.0 mm (1.8 in)
1984	74.7 mm (2.9 in)
1985	65.6 mm (2.6 in)
1986	69.1 mm (2.7 in)
1987	69.8 mm (2.7 in)
1988	65.9 mm (2.6 in)
1989	62.7 mm (2.5 in)
1993	71.2 mm (2.8 in)
1994	39.9 mm (1.6 in)
1995	14.8 mm (0.6 in)
1996	63.9 mm (2.5 in)
1997	24.2 mm (1.0 in)
1998	18.3 mm (0.7 in)
2001	12.5 mm (0.5 in)
2002	9.9 mm (0.39 in)
2003	40.9 mm (1.6 in)
2004	30.3 mm (1.2 in)
2005	33.5 mm (1.3 in)
2006	12.5 mm (0.5 in)
2007	23.5 mm (0.9 in)
2008	22.9 mm (0.9 in)
2011	116.9 mm (4.6 in)
2012	135.4 mm (5.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Puente la Llave, 1976 to 2012. The record is 192 days in 1998, marked on the chart; the median year is 78 days.

Longest dry spell (CDD) at Puente la Llave by year
Year	Longest dry spell (CDD)
1976	35 days
1977	64 days
1978	43 days
1979	41 days
1980	36 days
1981	55 days
1982	80 days
1983	55 days
1984	82 days
1985	75 days
1986	62 days
1987	86 days
1988	117 days
1989	64 days
1993	70 days
1994	128 days
1995	101 days
1996	138 days
1997	39 days
1998	192 days
2001	116 days
2002	110 days
2003	154 days
2004	99 days
2005	73 days
2006	110 days
2007	61 days
2008	86 days
2011	85 days
2012	55 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 Puente la Llave standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Puente la Llave 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 2026-10-14 (14 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).