La Salitrera Weather Records (MXN00024034)

Record envelope, standing records and threshold days for La Salitrera (MXN00024034), Mexico, with 46 years of record.

Key Facts for La Salitrera

La Salitrera (MXN00024034) is a weather station in Mexico at 21.93 latitude and -100.58 longitude, 1,893 m (6,210 ft) above sea level.
The station reports from 1961 to 2006, 46 years of record.
1,464 records set at La Salitrera still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
La Salitrera set a daily record precipitation of 42.9 mm (1.7 in) on 24 August 2006.

About the Station

Location: Mexico, 21.93 latitude, -100.58 longitude.
Elevation: 1,893 m (6,210 ft).
Period of record: 1961 to 2006, 46 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 La Salitrera. 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 La Salitrera, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.8 C (100.0 F)	-6.1 C (21.0 F)	n/a	n/a
Feb	36.7 C (98.1 F)	-9.4 C (15.1 F)	n/a	n/a
Mar	40.0 C (104.0 F)	-2.2 C (28.0 F)	n/a	n/a
Apr	40.0 C (104.0 F)	0.6 C (33.1 F)	n/a	n/a
May	40.0 C (104.0 F)	0.0 C (32.0 F)	n/a	n/a
Jun	36.7 C (98.1 F)	3.9 C (39.0 F)	n/a	n/a
Jul	33.9 C (93.0 F)	0.6 C (33.1 F)	n/a	n/a
Aug	37.8 C (100.0 F)	3.9 C (39.0 F)	n/a	n/a
Sep	42.8 C (109.0 F)	1.7 C (35.1 F)	n/a	n/a
Oct	40.6 C (105.1 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	37.8 C (100.0 F)	-6.1 C (21.0 F)	n/a	n/a
Dec	38.9 C (102.0 F)	-7.2 C (19.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at La Salitrera still stand. 1991 holds the most, with 113.

Standing records at La Salitrera by the year they were set
Year set	Standing records
1961	29
1962	21
1963	35
1964	42
1965	40
1966	50
1967	37
1968	29
1969	52
1970	39
1971	18
1972	32
1973	50
1974	46
1975	28
1976	44
1977	32
1978	3
1980	6
1981	6
1982	2
1983	55
1984	42
1991	113
1992	103
1993	36
1994	16
1995	32
1996	63
1997	82
1998	96
1999	37
2000	14
2001	10
2002	25
2003	31
2004	19
2005	43
2006	6

Wettest Day of Each Month

Aug: 199.9 mm (7.9 in)

The wettest day on record for each calendar month at La Salitrera. The most was 199.9 mm (7.9 in) on 18 August 1991.

Record daily precipitation for each month at La Salitrera
Month	Record daily precipitation (mm)	Date
Jan	93.0 mm (3.7 in)	27 January 1992
Feb	69.9 mm (2.8 in)	3 February 1992
Mar	47.0 mm (1.9 in)	14 March 1992
Apr	27.9 mm (1.1 in)	21 April 1993
May	140.0 mm (5.5 in)	14 May 1992
Jun	110.0 mm (4.3 in)	5 June 1992
Jul	77.5 mm (3.1 in)	19 July 1997
Aug	199.9 mm (7.9 in)	18 August 1991
Sep	80.3 mm (3.2 in)	29 September 1999
Oct	45.0 mm (1.8 in)	10 October 1966
Nov	25.9 mm (1.0 in)	11 November 1967
Dec	54.9 mm (2.2 in)	14 December 1992

Period of Record Coverage

1961 to 2006

40 years of record at La Salitrera, 1961 to 2006. 15 years have data for under 90 percent of days and are left out of rankings: 1978, 1980, 1981, 1983, 1984, 1985, 1992, 1993 and others.

Days with data per year at La Salitrera
Year	Days with data	Share of year	Complete
1961	363	99%	Yes
1962	334	92%	Yes
1963	359	98%	Yes
1964	365	100%	Yes
1965	363	99%	Yes
1966	363	99%	Yes
1967	363	99%	Yes
1968	364	99%	Yes
1969	362	99%	Yes
1970	364	100%	Yes
1971	363	99%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	364	100%	Yes
1975	351	96%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	58	16%	No
1980	214	58%	No
1981	277	76%	No
1982	334	92%	Yes
1983	273	75%	No
1984	325	89%	No
1985	61	17%	No
1991	343	94%	Yes
1992	270	74%	No
1993	270	74%	No
1994	58	16%	No
1995	361	99%	Yes
1996	150	41%	No
1997	324	89%	No
1998	365	100%	Yes
1999	301	82%	No
2000	326	89%	No
2001	363	99%	Yes
2002	362	99%	Yes
2003	357	98%	Yes
2004	297	81%	No
2005	364	100%	Yes
2006	242	66%	No

Latest Records

Latest records at La Salitrera
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 August 2006	La Salitrera, MX	daily rain	42.9 mm (1.7 in)	17.5 mm (0.7 in)	40 years	25 of 100 (Routine)
24 August 2006	La Salitrera, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	41 years	4 of 100 (Routine)
10 August 2006	La Salitrera, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	32 years	3 of 100 (Routine)
9 August 2006	La Salitrera, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	36 years	3 of 100 (Routine)
8 August 2006	La Salitrera, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	40 years	4 of 100 (Routine)
4 August 2006	La Salitrera, MX	daily rain	27.9 mm (1.1 in)	14.4 mm (0.6 in)	5 years	13 of 100 (Routine)
4 August 2006	La Salitrera, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	40 years	4 of 100 (Routine)
31 July 2006	La Salitrera, MX	daily low max	17.8 C (64.0 F)	1.6 C (2.9 F)	37 years	19 of 100 (Routine)
26 July 2006	La Salitrera, MX	daily rain	31.8 mm (1.3 in)	21.9 mm (0.9 in)	32 years	32 of 100 (Routine)
25 July 2006	La Salitrera, MX	daily rain	61.0 mm (2.4 in)	52.1 mm (2.1 in)	15 years	48 of 100 (Notable)
21 July 2006	La Salitrera, MX	daily low max (Tie)	20.0 C (68.0 F)	tie	15 years	2 of 100 (Routine)
28 June 2006	La Salitrera, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	44 years	4 of 100 (Routine)
15 June 2006	La Salitrera, MX	daily low min (Tie)	8.9 C (48.0 F)	tie	13 years	2 of 100 (Routine)
12 June 2006	La Salitrera, MX	daily low min (Tie)	7.8 C (46.0 F)	tie	44 years	4 of 100 (Routine)
2 June 2006	La Salitrera, MX	daily low max (Tie)	20.0 C (68.0 F)	tie	31 years	3 of 100 (Routine)
10 May 2006	La Salitrera, MX	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	3 years	5 of 100 (Routine)
9 May 2006	La Salitrera, MX	daily high max	35.0 C (95.0 F)	1.1 C (2.0 F)	23 years	12 of 100 (Routine)
28 April 2006	La Salitrera, MX	daily high min	16.7 C (62.1 F)	1.1 C (2.0 F)	36 years	18 of 100 (Routine)
27 April 2006	La Salitrera, MX	daily rain	16.8 mm (0.7 in)	5.9 mm (0.23 in)	4 years	14 of 100 (Routine)
23 April 2006	La Salitrera, MX	daily rain	17.8 mm (0.7 in)	12.7 mm (0.5 in)	24 years	20 of 100 (Routine)

Climate Trend

21 complete years, 1961 to 2005

One stripe for each of 21 complete years at La Salitrera, 1961 to 2005. Blue stripes are years cooler than the station's own mean of 16.0 C (60.8 F); red stripes are warmer. The coolest year was 1991, at 14.0 C (57.1 F), and the warmest was 1998, at 18.8 C (65.8 F). The strongest colour marks a difference of 2.8 C (5.0 F).

Annual mean temperature at La Salitrera as warming stripes, 1961 to 2005
Year	Annual mean temperature	Difference from the station mean
1961	15.8 C	-0.25 C
1963	15.9 C	-0.11 C
1964	16.2 C	+0.23 C
1965	16.0 C	0.00 C
1966	15.3 C	-0.73 C
1967	15.5 C	-0.48 C
1968	15.4 C	-0.58 C
1969	16.3 C	+0.33 C
1970	15.6 C	-0.36 C
1971	16.1 C	+0.11 C
1972	16.3 C	+0.25 C
1973	15.9 C	-0.06 C
1974	15.6 C	-0.38 C
1976	14.8 C	-1.24 C
1977	15.4 C	-0.62 C
1991	14.0 C	-2.04 C
1995	17.5 C	+1.50 C
1998	18.8 C	+2.78 C
2001	16.6 C	+0.57 C
2002	17.0 C	+0.99 C
2005	16.2 C	+0.17 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

1961 to 2006

Yearly extremes at La Salitrera: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	1997	33.9 C (93.0 F)	40
Coldest night (TNn)	-9.4 C (15.1 F)	1976	-2.2 C (28.0 F)	39
Wettest day (Rx1day)	199.9 mm (7.9 in)	1991	40.7 mm (1.6 in)	40
Wettest five days (Rx5day)	594.7 mm (23.4 in)	1992	87.2 mm (3.4 in)	40
Longest dry spell (CDD)	129 days	1998	60 days	40

Hottest day (TXx)

The hottest day of the year at La Salitrera, 1961 to 2006. The record is 42.8 C (109.0 F) in 1997, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at La Salitrera by year
Year	Hottest day (TXx)
1961	33.9 C (93.0 F)
1962	33.3 C (91.9 F)
1963	32.2 C (90.0 F)
1964	33.9 C (93.0 F)
1965	31.7 C (89.1 F)
1966	31.7 C (89.1 F)
1967	33.3 C (91.9 F)
1968	30.6 C (87.1 F)
1969	33.9 C (93.0 F)
1970	33.9 C (93.0 F)
1971	35.0 C (95.0 F)
1972	33.3 C (91.9 F)
1973	35.0 C (95.0 F)
1974	33.3 C (91.9 F)
1975	34.4 C (93.9 F)
1976	31.1 C (88.0 F)
1977	31.7 C (89.1 F)
1978	24.4 C (75.9 F)
1980	32.8 C (91.0 F)
1981	30.0 C (86.0 F)
1982	33.9 C (93.0 F)
1983	38.9 C (102.0 F)
1984	35.0 C (95.0 F)
1985	31.7 C (89.1 F)
1991	40.0 C (104.0 F)
1992	31.7 C (89.1 F)
1993	28.9 C (84.0 F)
1994	36.7 C (98.1 F)
1995	31.7 C (89.1 F)
1996	40.6 C (105.1 F)
1997	42.8 C (109.0 F)
1998	37.8 C (100.0 F)
1999	35.0 C (95.0 F)
2000	35.0 C (95.0 F)
2001	35.6 C (96.1 F)
2002	35.6 C (96.1 F)
2003	37.8 C (100.0 F)
2004	35.0 C (95.0 F)
2005	36.7 C (98.1 F)
2006	35.6 C (96.1 F)

Coldest night (TNn)

The coldest night of the year at La Salitrera, 1961 to 2006. The record is -9.4 C (15.1 F) in 1976, marked on the chart; the median year is -2.2 C (28.0 F).

Coldest night (TNn) at La Salitrera by year
Year	Coldest night (TNn)
1961	-4.4 C (24.1 F)
1962	-4.4 C (24.1 F)
1963	-6.1 C (21.0 F)
1964	-4.4 C (24.1 F)
1965	-5.6 C (21.9 F)
1966	-5.6 C (21.9 F)
1967	-6.1 C (21.0 F)
1968	-3.3 C (26.1 F)
1969	-6.1 C (21.0 F)
1970	-7.2 C (19.0 F)
1971	-3.3 C (26.1 F)
1972	-2.8 C (27.0 F)
1973	-6.1 C (21.0 F)
1974	-5.0 C (23.0 F)
1975	-4.4 C (24.1 F)
1976	-9.4 C (15.1 F)
1977	-1.1 C (30.0 F)
1978	0.0 C (32.0 F)
1980	1.7 C (35.1 F)
1981	-2.2 C (28.0 F)
1982	0.0 C (32.0 F)
1983	0.6 C (33.1 F)
1984	1.1 C (34.0 F)
1985	5.0 C (41.0 F)
1991	-2.2 C (28.0 F)
1992	0.0 C (32.0 F)
1993	0.0 C (32.0 F)
1994	0.6 C (33.1 F)
1995	-2.2 C (28.0 F)
1996	3.9 C (39.0 F)
1997	n/a
1998	5.0 C (41.0 F)
1999	0.6 C (33.1 F)
2000	0.6 C (33.1 F)
2001	0.0 C (32.0 F)
2002	0.0 C (32.0 F)
2003	-7.2 C (19.0 F)
2004	-1.1 C (30.0 F)
2005	0.6 C (33.1 F)
2006	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at La Salitrera, 1961 to 2006. The record is 199.9 mm (7.9 in) in 1991, marked on the chart; the median year is 40.7 mm (1.6 in).

Wettest day (Rx1day) at La Salitrera by year
Year	Wettest day (Rx1day)
1961	48.8 mm (1.9 in)
1962	18.8 mm (0.7 in)
1963	31.0 mm (1.2 in)
1964	32.3 mm (1.3 in)
1965	29.0 mm (1.1 in)
1966	45.0 mm (1.8 in)
1967	61.0 mm (2.4 in)
1968	42.4 mm (1.7 in)
1969	90.4 mm (3.6 in)
1970	65.8 mm (2.6 in)
1971	45.0 mm (1.8 in)
1972	29.0 mm (1.1 in)
1973	69.9 mm (2.8 in)
1974	72.4 mm (2.9 in)
1975	47.8 mm (1.9 in)
1976	47.5 mm (1.9 in)
1977	66.8 mm (2.6 in)
1978	0.8 mm (0.03 in)
1980	27.4 mm (1.1 in)
1981	35.8 mm (1.4 in)
1982	37.1 mm (1.5 in)
1983	37.3 mm (1.5 in)
1984	32.8 mm (1.3 in)
1985	16.8 mm (0.7 in)
1991	199.9 mm (7.9 in)
1992	140.0 mm (5.5 in)
1993	38.9 mm (1.5 in)
1994	23.9 mm (0.9 in)
1995	9.9 mm (0.39 in)
1996	8.9 mm (0.35 in)
1997	77.5 mm (3.1 in)
1998	33.3 mm (1.3 in)
1999	80.3 mm (3.2 in)
2000	59.9 mm (2.4 in)
2001	55.9 mm (2.2 in)
2002	27.9 mm (1.1 in)
2003	59.9 mm (2.4 in)
2004	36.8 mm (1.4 in)
2005	37.8 mm (1.5 in)
2006	61.0 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at La Salitrera, 1961 to 2006. The record is 594.7 mm (23.4 in) in 1992, marked on the chart; the median year is 87.2 mm (3.4 in).

Wettest five days (Rx5day) at La Salitrera by year
Year	Wettest five days (Rx5day)
1961	108.3 mm (4.3 in)
1962	37.4 mm (1.5 in)
1963	53.4 mm (2.1 in)
1964	65.3 mm (2.6 in)
1965	90.0 mm (3.5 in)
1966	82.5 mm (3.2 in)
1967	144.8 mm (5.7 in)
1968	70.9 mm (2.8 in)
1969	207.8 mm (8.2 in)
1970	111.5 mm (4.4 in)
1971	102.9 mm (4.1 in)
1972	71.1 mm (2.8 in)
1973	201.4 mm (7.9 in)
1974	177.0 mm (7.0 in)
1975	128.3 mm (5.1 in)
1976	167.5 mm (6.6 in)
1977	84.3 mm (3.3 in)
1978	0.8 mm (0.03 in)
1980	36.8 mm (1.4 in)
1981	64.6 mm (2.5 in)
1982	44.0 mm (1.7 in)
1983	44.2 mm (1.7 in)
1984	93.9 mm (3.7 in)
1985	25.4 mm (1.0 in)
1991	385.3 mm (15.2 in)
1992	594.7 mm (23.4 in)
1993	148.3 mm (5.8 in)
1994	30.5 mm (1.2 in)
1995	23.9 mm (0.9 in)
1996	16.8 mm (0.7 in)
1997	97.9 mm (3.9 in)
1998	91.0 mm (3.6 in)
1999	123.0 mm (4.8 in)
2000	164.6 mm (6.5 in)
2001	75.4 mm (3.0 in)
2002	48.5 mm (1.9 in)
2003	105.6 mm (4.2 in)
2004	81.2 mm (3.2 in)
2005	84.3 mm (3.3 in)
2006	94.4 mm (3.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at La Salitrera, 1961 to 2006. The record is 129 days in 1998, marked on the chart; the median year is 60 days.

Longest dry spell (CDD) at La Salitrera by year
Year	Longest dry spell (CDD)
1961	112 days
1962	70 days
1963	76 days
1964	39 days
1965	39 days
1966	28 days
1967	45 days
1968	30 days
1969	44 days
1970	76 days
1971	128 days
1972	61 days
1973	50 days
1974	35 days
1975	89 days
1976	55 days
1977	62 days
1978	59 days
1980	38 days
1981	32 days
1982	42 days
1983	102 days
1984	53 days
1985	48 days
1991	54 days
1992	54 days
1993	75 days
1994	39 days
1995	100 days
1996	61 days
1997	50 days
1998	129 days
1999	82 days
2000	100 days
2001	58 days
2002	60 days
2003	62 days
2004	69 days
2005	68 days
2006	82 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 La Salitrera standing records by year: CSV or JSON. Field meanings are on the data page.
Data for La Salitrera 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).