La Union Weather Records (MXN00007100)

Record envelope, standing records and threshold days for La Union (MXN00007100), Mexico, with 52 years of record.

Key Facts for La Union

La Union (MXN00007100) is a weather station in Mexico at 16.65 latitude and -93.80 longitude, 580 m (1,902 ft) above sea level.
The station reports from 1962 to 2013, 52 years of record.
1,464 records set at La Union still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
La Union set a daily record high minimum temperature of 19.4 C (66.9 F) on 21 March 2013.

About the Station

Location: Mexico, 16.65 latitude, -93.80 longitude.
Elevation: 580 m (1,902 ft).
Period of record: 1962 to 2013, 52 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 Union. 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 Union, 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)	5.0 C (41.0 F)	n/a	n/a
Feb	38.3 C (100.9 F)	5.0 C (41.0 F)	n/a	n/a
Mar	40.6 C (105.1 F)	2.8 C (37.0 F)	n/a	n/a
Apr	41.1 C (106.0 F)	5.6 C (42.1 F)	n/a	n/a
May	40.6 C (105.1 F)	3.9 C (39.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	10.0 C (50.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	8.3 C (46.9 F)	n/a	n/a
Aug	40.0 C (104.0 F)	8.3 C (46.9 F)	n/a	n/a
Sep	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Oct	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Nov	37.8 C (100.0 F)	5.6 C (42.1 F)	n/a	n/a
Dec	37.8 C (100.0 F)	3.9 C (39.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at La Union still stand. 1990 holds the most, with 149.

Standing records at La Union by the year they were set
Year set	Standing records
1962	18
1963	62
1964	61
1965	18
1968	16
1969	32
1970	31
1971	40
1972	22
1973	20
1974	21
1975	13
1976	11
1977	64
1978	62
1979	37
1980	37
1981	28
1982	9
1983	42
1984	56
1985	53
1986	16
1987	47
1988	31
1989	51
1990	149
1991	39
1992	21
1994	2
1995	12
1996	6
1997	2
1998	20
1999	9
2000	28
2002	22
2003	17
2004	28
2005	15
2006	32
2007	28
2008	32
2009	4
2010	41
2011	24
2012	22
2013	13

All-Time Record Progression

2 new records

2 all-time records were set at La Union between 3 May 2000 and 12 April 2004. Each dot is a new record.

When La Union set new all-time records
Date	Kind	Detail
2000-05-03	Record high minimum temperature	Record high minimum temperature 26.7 C (80.1 F)
2004-04-12	Record high maximum temperature	Record high maximum temperature 41.1 C (106.0 F)

Wettest Day of Each Month

Aug: 155.4 mm (6.1 in)

The wettest day on record for each calendar month at La Union. The most was 155.4 mm (6.1 in) on 31 August 1973.

Record daily precipitation for each month at La Union
Month	Record daily precipitation (mm)	Date
Jan	10.9 mm (0.4 in)	1 January 1996
Feb	35.8 mm (1.4 in)	17 February 2000
Mar	58.9 mm (2.3 in)	9 March 1974
Apr	73.9 mm (2.9 in)	15 April 2010
May	79.8 mm (3.1 in)	30 May 1986
Jun	105.9 mm (4.2 in)	16 June 1974
Jul	80.3 mm (3.2 in)	27 July 1990
Aug	155.4 mm (6.1 in)	31 August 1973
Sep	110.5 mm (4.4 in)	15 September 1984
Oct	119.9 mm (4.7 in)	5 October 1971
Nov	54.9 mm (2.2 in)	9 November 1963
Dec	16.3 mm (0.6 in)	5 December 1964

Period of Record Coverage

1962 to 2013

49 years of record at La Union, 1962 to 2013. 26 years have data for under 90 percent of days and are left out of rankings: 1962, 1965, 1968, 1969, 1972, 1973, 1974, 1979 and others.

Days with data per year at La Union
Year	Days with data	Share of year	Complete
1962	114	31%	No
1963	348	95%	Yes
1964	366	100%	Yes
1965	154	42%	No
1968	92	25%	No
1969	326	89%	No
1970	355	97%	Yes
1971	363	99%	Yes
1972	279	76%	No
1973	273	75%	No
1974	323	88%	No
1975	335	92%	Yes
1976	335	92%	Yes
1977	362	99%	Yes
1978	363	99%	Yes
1979	303	83%	No
1980	335	92%	Yes
1981	328	90%	No
1982	365	100%	Yes
1983	303	83%	No
1984	336	92%	Yes
1985	365	100%	Yes
1986	304	83%	No
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	360	99%	Yes
1991	327	90%	No
1992	366	100%	Yes
1993	153	42%	No
1994	354	97%	Yes
1995	365	100%	Yes
1996	274	75%	No
1997	334	92%	Yes
1998	360	99%	Yes
1999	298	82%	No
2000	320	87%	No
2002	360	99%	Yes
2003	286	78%	No
2004	294	80%	No
2005	292	80%	No
2006	169	46%	No
2007	289	79%	No
2008	349	95%	Yes
2009	225	62%	No
2010	312	85%	No
2011	328	90%	No
2012	211	58%	No
2013	90	25%	No

Latest Records

Latest records at La Union
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 March 2013	La Union, MX	daily high min	19.4 C (66.9 F)	0.5 C (0.9 F)	8 years	8 of 100 (Routine)
15 March 2013	La Union, MX	daily low max	22.8 C (73.0 F)	2.8 C (5.0 F)	15 years	17 of 100 (Routine)
14 March 2013	La Union, MX	daily low max	20.6 C (69.1 F)	1.1 C (2.0 F)	38 years	19 of 100 (Routine)
13 March 2013	La Union, MX	daily low max	18.9 C (66.0 F)	2.8 C (5.0 F)	32 years	22 of 100 (Routine)
12 March 2013	La Union, MX	daily low max	21.1 C (70.0 F)	2.8 C (5.0 F)	34 years	23 of 100 (Routine)
3 March 2013	La Union, MX	daily low max	21.1 C (70.0 F)	3.9 C (7.0 F)	6 years	17 of 100 (Routine)
2 March 2013	La Union, MX	daily low max	20.0 C (68.0 F)	1.7 C (3.1 F)	2 years	9 of 100 (Routine)
1 March 2013	La Union, MX	daily low max	21.1 C (70.0 F)	0.6 C (1.1 F)	12 years	9 of 100 (Routine)
19 February 2013	La Union, MX	daily low min	8.3 C (46.9 F)	1.7 C (3.1 F)	43 years	22 of 100 (Routine)
18 February 2013	La Union, MX	daily low min	6.1 C (43.0 F)	1.7 C (3.1 F)	31 years	19 of 100 (Routine)
16 February 2013	La Union, MX	daily rain	2.3 mm (0.09 in)	2.3 mm (0.09 in)	50 years	20 of 100 (Routine)
16 February 2013	La Union, MX	daily high min	18.3 C (64.9 F)	0.5 C (0.9 F)	49 years	20 of 100 (Routine)
12 February 2013	La Union, MX	daily low min (Tie)	8.9 C (48.0 F)	tie	23 years	2 of 100 (Routine)
31 January 2013	La Union, MX	daily low max	17.8 C (64.0 F)	3.9 C (7.0 F)	27 years	23 of 100 (Routine)
30 January 2013	La Union, MX	daily rain	0.3 mm (0.01 in)	0.3 mm (0.01 in)	50 years	20 of 100 (Routine)
19 January 2013	La Union, MX	daily low max	20.0 C (68.0 F)	0.6 C (1.1 F)	48 years	20 of 100 (Routine)
12 January 2013	La Union, MX	daily high max (Tie)	32.8 C (91.0 F)	tie	33 years	3 of 100 (Routine)
28 December 2012	La Union, MX	daily high max	33.3 C (91.9 F)	0.5 C (0.9 F)	29 years	14 of 100 (Routine)
21 December 2012	La Union, MX	daily rain	0.8 mm (0.03 in)	0.8 mm (0.03 in)	50 years	20 of 100 (Routine)
21 December 2012	La Union, MX	daily low max	15.6 C (60.1 F)	2.2 C (4.0 F)	8 years	12 of 100 (Routine)

Climate Trend

16 complete years, 1964 to 2008

One stripe for each of 16 complete years at La Union, 1964 to 2008. Blue stripes are years cooler than the station's own mean of 22.9 C (73.3 F); red stripes are warmer. The coolest year was 1964, at 20.8 C (69.5 F), and the warmest was 2002, at 24.5 C (76.1 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at La Union as warming stripes, 1964 to 2008
Year	Annual mean temperature	Difference from the station mean
1964	20.8 C	-2.11 C
1970	22.9 C	-0.05 C
1971	23.8 C	+0.86 C
1977	23.4 C	+0.45 C
1978	23.5 C	+0.59 C
1982	22.9 C	-0.02 C
1985	22.0 C	-0.89 C
1987	21.6 C	-1.33 C
1988	22.0 C	-0.93 C
1989	20.9 C	-2.00 C
1990	22.7 C	-0.22 C
1992	24.4 C	+1.50 C
1995	23.1 C	+0.17 C
1998	24.5 C	+1.55 C
2002	24.5 C	+1.60 C
2008	23.7 C	+0.81 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

1962 to 2013

Yearly extremes at La Union: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.1 C (106.0 F)	2004	37.8 C (100.0 F)	49
Coldest night (TNn)	2.8 C (37.0 F)	1987	7.8 C (46.0 F)	49
Wettest day (Rx1day)	155.4 mm (6.1 in)	1973	57.9 mm (2.3 in)	49
Wettest five days (Rx5day)	352.8 mm (13.9 in)	2012	100.2 mm (3.9 in)	49
Longest dry spell (CDD)	160 days	1998	84 days	49

Hottest day (TXx)

The hottest day of the year at La Union, 1962 to 2013. The record is 41.1 C (106.0 F) in 2004, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at La Union by year
Year	Hottest day (TXx)
1962	30.0 C (86.0 F)
1963	35.0 C (95.0 F)
1964	35.6 C (96.1 F)
1965	33.9 C (93.0 F)
1968	36.1 C (97.0 F)
1969	39.4 C (102.9 F)
1970	40.6 C (105.1 F)
1971	38.3 C (100.9 F)
1972	36.7 C (98.1 F)
1973	38.9 C (102.0 F)
1974	36.7 C (98.1 F)
1975	36.7 C (98.1 F)
1976	37.8 C (100.0 F)
1977	40.0 C (104.0 F)
1978	40.0 C (104.0 F)
1979	37.8 C (100.0 F)
1980	40.6 C (105.1 F)
1981	36.1 C (97.0 F)
1982	35.6 C (96.1 F)
1983	38.9 C (102.0 F)
1984	40.6 C (105.1 F)
1985	38.3 C (100.9 F)
1986	38.3 C (100.9 F)
1987	36.7 C (98.1 F)
1988	39.4 C (102.9 F)
1989	38.9 C (102.0 F)
1990	36.7 C (98.1 F)
1991	35.0 C (95.0 F)
1992	37.8 C (100.0 F)
1993	35.0 C (95.0 F)
1994	35.6 C (96.1 F)
1995	36.7 C (98.1 F)
1996	35.6 C (96.1 F)
1997	35.6 C (96.1 F)
1998	38.9 C (102.0 F)
1999	37.8 C (100.0 F)
2000	38.9 C (102.0 F)
2002	38.9 C (102.0 F)
2003	40.0 C (104.0 F)
2004	41.1 C (106.0 F)
2005	37.8 C (100.0 F)
2006	38.9 C (102.0 F)
2007	38.9 C (102.0 F)
2008	40.6 C (105.1 F)
2009	37.8 C (100.0 F)
2010	38.9 C (102.0 F)
2011	37.2 C (99.0 F)
2012	36.7 C (98.1 F)
2013	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at La Union, 1962 to 2013. The record is 2.8 C (37.0 F) in 1987, marked on the chart; the median year is 7.8 C (46.0 F).

Coldest night (TNn) at La Union by year
Year	Coldest night (TNn)
1962	11.1 C (52.0 F)
1963	5.6 C (42.1 F)
1964	5.0 C (41.0 F)
1965	7.8 C (46.0 F)
1968	7.8 C (46.0 F)
1969	10.0 C (50.0 F)
1970	6.7 C (44.1 F)
1971	11.1 C (52.0 F)
1972	7.8 C (46.0 F)
1973	5.0 C (41.0 F)
1974	7.8 C (46.0 F)
1975	5.0 C (41.0 F)
1976	5.6 C (42.1 F)
1977	6.7 C (44.1 F)
1978	7.2 C (45.0 F)
1979	8.9 C (48.0 F)
1980	3.9 C (39.0 F)
1981	6.7 C (44.1 F)
1982	5.0 C (41.0 F)
1983	6.7 C (44.1 F)
1984	6.7 C (44.1 F)
1985	5.6 C (42.1 F)
1986	8.9 C (48.0 F)
1987	2.8 C (37.0 F)
1988	5.0 C (41.0 F)
1989	3.9 C (39.0 F)
1990	5.0 C (41.0 F)
1991	8.3 C (46.9 F)
1992	10.0 C (50.0 F)
1993	12.8 C (55.0 F)
1994	10.0 C (50.0 F)
1995	11.7 C (53.1 F)
1996	11.7 C (53.1 F)
1997	13.9 C (57.0 F)
1998	10.0 C (50.0 F)
1999	7.8 C (46.0 F)
2000	6.7 C (44.1 F)
2002	10.0 C (50.0 F)
2003	10.0 C (50.0 F)
2004	8.9 C (48.0 F)
2005	6.7 C (44.1 F)
2006	7.8 C (46.0 F)
2007	7.8 C (46.0 F)
2008	7.8 C (46.0 F)
2009	7.8 C (46.0 F)
2010	10.0 C (50.0 F)
2011	7.2 C (45.0 F)
2012	3.9 C (39.0 F)
2013	5.6 C (42.1 F)

Wettest day (Rx1day)

The wettest day of the year at La Union, 1962 to 2013. The record is 155.4 mm (6.1 in) in 1973, marked on the chart; the median year is 57.9 mm (2.3 in).

Wettest day (Rx1day) at La Union by year
Year	Wettest day (Rx1day)
1962	34.8 mm (1.4 in)
1963	54.9 mm (2.2 in)
1964	65.8 mm (2.6 in)
1965	21.3 mm (0.8 in)
1968	19.8 mm (0.8 in)
1969	53.3 mm (2.1 in)
1970	49.3 mm (1.9 in)
1971	119.9 mm (4.7 in)
1972	63.0 mm (2.5 in)
1973	155.4 mm (6.1 in)
1974	105.9 mm (4.2 in)
1975	19.8 mm (0.8 in)
1976	39.9 mm (1.6 in)
1977	79.8 mm (3.1 in)
1978	49.8 mm (2.0 in)
1979	59.9 mm (2.4 in)
1980	47.0 mm (1.9 in)
1981	56.4 mm (2.2 in)
1982	49.8 mm (2.0 in)
1983	30.5 mm (1.2 in)
1984	110.5 mm (4.4 in)
1985	43.9 mm (1.7 in)
1986	79.8 mm (3.1 in)
1987	64.8 mm (2.6 in)
1988	77.0 mm (3.0 in)
1989	105.9 mm (4.2 in)
1990	80.3 mm (3.2 in)
1991	39.9 mm (1.6 in)
1992	120.1 mm (4.7 in)
1993	59.9 mm (2.4 in)
1994	49.8 mm (2.0 in)
1995	75.9 mm (3.0 in)
1996	67.8 mm (2.7 in)
1997	45.0 mm (1.8 in)
1998	55.9 mm (2.2 in)
1999	35.3 mm (1.4 in)
2000	64.8 mm (2.6 in)
2002	88.9 mm (3.5 in)
2003	99.8 mm (3.9 in)
2004	74.9 mm (2.9 in)
2005	57.9 mm (2.3 in)
2006	57.9 mm (2.3 in)
2007	40.9 mm (1.6 in)
2008	51.8 mm (2.0 in)
2009	45.0 mm (1.8 in)
2010	75.9 mm (3.0 in)
2011	85.3 mm (3.4 in)
2012	102.9 mm (4.1 in)
2013	2.3 mm (0.09 in)

Wettest five days (Rx5day)

The wettest five days of the year at La Union, 1962 to 2013. The record is 352.8 mm (13.9 in) in 2012, marked on the chart; the median year is 100.2 mm (3.9 in).

Wettest five days (Rx5day) at La Union by year
Year	Wettest five days (Rx5day)
1962	56.6 mm (2.2 in)
1963	99.9 mm (3.9 in)
1964	124.0 mm (4.9 in)
1965	40.6 mm (1.6 in)
1968	27.9 mm (1.1 in)
1969	98.8 mm (3.9 in)
1970	85.4 mm (3.4 in)
1971	119.9 mm (4.7 in)
1972	63.6 mm (2.5 in)
1973	200.1 mm (7.9 in)
1974	117.6 mm (4.6 in)
1975	19.8 mm (0.8 in)
1976	72.7 mm (2.9 in)
1977	117.6 mm (4.6 in)
1978	79.5 mm (3.1 in)
1979	114.6 mm (4.5 in)
1980	164.4 mm (6.5 in)
1981	131.8 mm (5.2 in)
1982	63.8 mm (2.5 in)
1983	66.5 mm (2.6 in)
1984	222.5 mm (8.8 in)
1985	81.0 mm (3.2 in)
1986	127.6 mm (5.0 in)
1987	149.9 mm (5.9 in)
1988	137.7 mm (5.4 in)
1989	176.8 mm (7.0 in)
1990	80.3 mm (3.2 in)
1991	139.9 mm (5.5 in)
1992	229.0 mm (9.0 in)
1993	100.2 mm (3.9 in)
1994	69.1 mm (2.7 in)
1995	95.2 mm (3.7 in)
1996	80.8 mm (3.2 in)
1997	94.8 mm (3.7 in)
1998	87.7 mm (3.5 in)
1999	48.5 mm (1.9 in)
2000	100.9 mm (4.0 in)
2002	125.5 mm (4.9 in)
2003	173.0 mm (6.8 in)
2004	108.9 mm (4.3 in)
2005	169.7 mm (6.7 in)
2006	95.7 mm (3.8 in)
2007	73.4 mm (2.9 in)
2008	103.1 mm (4.1 in)
2009	72.2 mm (2.8 in)
2010	184.4 mm (7.3 in)
2011	167.1 mm (6.6 in)
2012	352.8 mm (13.9 in)
2013	3.1 mm (0.12 in)

Longest dry spell (CDD)

The longest dry spell of the year at La Union, 1962 to 2013. The record is 160 days in 1998, marked on the chart; the median year is 84 days.

Longest dry spell (CDD) at La Union by year
Year	Longest dry spell (CDD)
1962	45 days
1963	47 days
1964	50 days
1965	31 days
1968	25 days
1969	47 days
1970	87 days
1971	88 days
1972	60 days
1973	128 days
1974	66 days
1975	131 days
1976	149 days
1977	140 days
1978	62 days
1979	109 days
1980	121 days
1981	68 days
1982	98 days
1983	51 days
1984	128 days
1985	109 days
1986	136 days
1987	153 days
1988	136 days
1989	123 days
1990	112 days
1991	94 days
1992	107 days
1993	71 days
1994	100 days
1995	92 days
1996	45 days
1997	68 days
1998	160 days
1999	81 days
2000	78 days
2002	84 days
2003	70 days
2004	56 days
2005	143 days
2006	68 days
2007	143 days
2008	73 days
2009	132 days
2010	78 days
2011	48 days
2012	19 days
2013	43 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 Union standing records by year: CSV or JSON. Field meanings are on the data page.
Data for La Union 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).