Union Zaragoza Weather Records (MXN00007355)

Record envelope, standing records and threshold days for Union Zaragoza (MXN00007355), Mexico, with 32 years of record.

Key Facts for Union Zaragoza

Union Zaragoza (MXN00007355) is a weather station in Mexico at 17.07 latitude and -92.85 longitude, 1,690 m (5,544 ft) above sea level.
The station reports from 1982 to 2013, 32 years of record.
1,464 records set at Union Zaragoza still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Union Zaragoza set a daily record high maximum temperature of 30.6 C (87.1 F) on 24 March 2013.

About the Station

Location: Mexico, 17.07 latitude, -92.85 longitude.
Elevation: 1,690 m (5,544 ft).
Period of record: 1982 to 2013, 32 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 Union Zaragoza. 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 Union Zaragoza, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.0 C (86.0 F)	0.0 C (32.0 F)	n/a	n/a
Feb	32.8 C (91.0 F)	0.0 C (32.0 F)	n/a	n/a
Mar	32.2 C (90.0 F)	2.8 C (37.0 F)	n/a	n/a
Apr	35.0 C (95.0 F)	3.9 C (39.0 F)	n/a	n/a
May	36.7 C (98.1 F)	5.0 C (41.0 F)	n/a	n/a
Jun	31.7 C (89.1 F)	0.0 C (32.0 F)	n/a	n/a
Jul	30.0 C (86.0 F)	5.0 C (41.0 F)	n/a	n/a
Aug	30.0 C (86.0 F)	5.0 C (41.0 F)	n/a	n/a
Sep	30.0 C (86.0 F)	3.9 C (39.0 F)	n/a	n/a
Oct	31.7 C (89.1 F)	2.8 C (37.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	2.8 C (37.0 F)	n/a	n/a
Dec	30.0 C (86.0 F)	0.6 C (33.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Union Zaragoza still stand. 1995 holds the most, with 125.

Standing records at Union Zaragoza by the year they were set
Year set	Standing records
1982	29
1983	42
1984	32
1985	15
1986	40
1987	40
1988	47
1989	24
1990	14
1991	39
1992	28
1993	55
1994	66
1995	125
1996	55
1997	32
1998	66
1999	74
2000	46
2001	20
2002	22
2003	27
2004	42
2005	120
2006	120
2007	18
2008	37
2009	69
2010	31
2011	41
2012	37
2013	11

Wettest Day of Each Month

Aug: 182.9 mm (7.2 in)

The wettest day on record for each calendar month at Union Zaragoza. The most was 182.9 mm (7.2 in) on 8 August 2010.

Record daily precipitation for each month at Union Zaragoza
Month	Record daily precipitation (mm)	Date
Jan	65.0 mm (2.6 in)	2 January 2008
Feb	38.9 mm (1.5 in)	25 February 1983
Mar	38.1 mm (1.5 in)	10 March 2011
Apr	70.1 mm (2.8 in)	7 April 1991
May	99.8 mm (3.9 in)	30 May 1986
Jun	80.0 mm (3.1 in)	27 June 2010
Jul	64.8 mm (2.6 in)	21 July 2010
Aug	182.9 mm (7.2 in)	8 August 2010
Sep	119.9 mm (4.7 in)	24 September 2010
Oct	120.1 mm (4.7 in)	28 October 2007
Nov	68.1 mm (2.7 in)	5 November 2004
Dec	99.8 mm (3.9 in)	16 December 1982

Period of Record Coverage

1982 to 2013

32 years of record at Union Zaragoza, 1982 to 2013. 4 years have data for under 90 percent of days and are left out of rankings: 1989, 2007, 2010, 2013.

Days with data per year at Union Zaragoza
Year	Days with data	Share of year	Complete
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	335	92%	Yes
1986	334	92%	Yes
1987	335	92%	Yes
1988	366	100%	Yes
1989	207	57%	No
1990	331	91%	Yes
1991	363	99%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	335	92%	Yes
1997	365	100%	Yes
1998	352	96%	Yes
1999	359	98%	Yes
2000	359	98%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	334	92%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	361	99%	Yes
2007	324	89%	No
2008	340	93%	Yes
2009	329	90%	Yes
2010	308	84%	No
2011	362	99%	Yes
2012	362	99%	Yes
2013	90	25%	No

Latest Records

Latest records at Union Zaragoza
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 March 2013	Union Zaragoza, MX	daily high max	30.6 C (87.1 F)	0.6 C (1.1 F)	26 years	11 of 100 (Routine)
23 March 2013	Union Zaragoza, MX	daily high max	30.6 C (87.1 F)	0.6 C (1.1 F)	12 years	7 of 100 (Routine)
16 March 2013	Union Zaragoza, MX	daily low min	5.6 C (42.1 F)	1.1 C (2.0 F)	24 years	14 of 100 (Routine)
15 March 2013	Union Zaragoza, MX	daily low max	12.8 C (55.0 F)	3.9 C (7.0 F)	12 years	16 of 100 (Routine)
14 March 2013	Union Zaragoza, MX	daily low max	13.9 C (57.0 F)	3.9 C (7.0 F)	20 years	19 of 100 (Routine)
14 March 2013	Union Zaragoza, MX	daily low min	6.1 C (43.0 F)	0.6 C (1.1 F)	19 years	10 of 100 (Routine)
13 March 2013	Union Zaragoza, MX	daily low max	13.9 C (57.0 F)	1.1 C (2.0 F)	20 years	11 of 100 (Routine)
10 March 2013	Union Zaragoza, MX	daily high min	13.9 C (57.0 F)	1.1 C (2.0 F)	20 years	13 of 100 (Routine)
3 March 2013	Union Zaragoza, MX	daily low max	13.9 C (57.0 F)	0.5 C (0.9 F)	12 years	7 of 100 (Routine)
28 February 2013	Union Zaragoza, MX	daily low max (Tie)	17.8 C (64.0 F)	tie	12 years	1 of 100 (Routine)
16 February 2013	Union Zaragoza, MX	daily rain	15.7 mm (0.6 in)	7.8 mm (0.31 in)	21 years	20 of 100 (Routine)
10 February 2013	Union Zaragoza, MX	daily high max	27.8 C (82.0 F)	1.1 C (2.0 F)	3 years	5 of 100 (Routine)
8 February 2013	Union Zaragoza, MX	daily high max (Tie)	27.8 C (82.0 F)	tie	3 years	0 of 100 (Routine)
2 February 2013	Union Zaragoza, MX	daily rain	17.8 mm (0.7 in)	0.8 mm (0.03 in)	15 years	8 of 100 (Routine)
1 February 2013	Union Zaragoza, MX	daily rain (Tie)	5.8 mm (0.23 in)	tie	7 years	1 of 100 (Routine)
16 January 2013	Union Zaragoza, MX	daily rain	15.7 mm (0.6 in)	7.8 mm (0.31 in)	6 years	12 of 100 (Routine)
10 January 2013	Union Zaragoza, MX	daily high min	11.7 C (53.1 F)	1.1 C (2.0 F)	25 years	14 of 100 (Routine)
9 January 2013	Union Zaragoza, MX	daily high max (Tie)	25.6 C (78.1 F)	tie	16 years	1 of 100 (Routine)
30 December 2012	Union Zaragoza, MX	daily rain	25.9 mm (1.0 in)	14.0 mm (0.6 in)	29 years	25 of 100 (Routine)
29 December 2012	Union Zaragoza, MX	daily high min	12.8 C (55.0 F)	0.6 C (1.1 F)	6 years	6 of 100 (Routine)

Climate Trend

22 complete years, 1982 to 2012

One stripe for each of 22 complete years at Union Zaragoza, 1982 to 2012. Blue stripes are years cooler than the station's own mean of 16.2 C (61.2 F); red stripes are warmer. The coolest year was 1995, at 13.8 C (56.8 F), and the warmest was 2008, at 17.8 C (64.1 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at Union Zaragoza as warming stripes, 1982 to 2012
Year	Annual mean temperature	Difference from the station mean
1982	17.6 C	+1.34 C
1983	17.7 C	+1.44 C
1984	16.8 C	+0.55 C
1988	16.9 C	+0.63 C
1991	16.6 C	+0.38 C
1992	15.1 C	-1.09 C
1993	15.0 C	-1.19 C
1994	14.8 C	-1.41 C
1995	13.8 C	-2.46 C
1997	15.6 C	-0.60 C
1999	14.4 C	-1.82 C
2000	14.8 C	-1.48 C
2001	14.1 C	-2.11 C
2002	15.3 C	-0.93 C
2004	14.9 C	-1.32 C
2005	17.6 C	+1.39 C
2006	17.7 C	+1.48 C
2007	17.7 C	+1.47 C
2008	17.8 C	+1.61 C
2009	17.7 C	+1.44 C
2011	17.5 C	+1.26 C
2012	17.7 C	+1.45 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

1982 to 2013

Yearly extremes at Union Zaragoza: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.7 C (98.1 F)	1998	30.6 C (87.1 F)	32
Coldest night (TNn)	0.0 C (32.0 F)	1989	3.9 C (39.0 F)	32
Wettest day (Rx1day)	182.9 mm (7.2 in)	2010	66.6 mm (2.6 in)	32
Wettest five days (Rx5day)	404.6 mm (15.9 in)	2010	147.0 mm (5.8 in)	32
Longest dry spell (CDD)	92 days	1987	28 days	32

Hottest day (TXx)

The hottest day of the year at Union Zaragoza, 1982 to 2013. The record is 36.7 C (98.1 F) in 1998, marked on the chart; the median year is 30.6 C (87.1 F).

Hottest day (TXx) at Union Zaragoza by year
Year	Hottest day (TXx)
1982	30.6 C (87.1 F)
1983	30.6 C (87.1 F)
1984	31.1 C (88.0 F)
1985	30.0 C (86.0 F)
1986	30.0 C (86.0 F)
1987	32.2 C (90.0 F)
1988	30.6 C (87.1 F)
1989	32.8 C (91.0 F)
1990	29.4 C (84.9 F)
1991	31.1 C (88.0 F)
1992	30.0 C (86.0 F)
1993	31.7 C (89.1 F)
1994	30.0 C (86.0 F)
1995	30.6 C (87.1 F)
1996	30.6 C (87.1 F)
1997	30.0 C (86.0 F)
1998	36.7 C (98.1 F)
1999	31.7 C (89.1 F)
2000	35.0 C (95.0 F)
2001	28.9 C (84.0 F)
2002	32.8 C (91.0 F)
2003	33.3 C (91.9 F)
2004	28.3 C (82.9 F)
2005	33.9 C (93.0 F)
2006	31.7 C (89.1 F)
2007	30.6 C (87.1 F)
2008	31.1 C (88.0 F)
2009	31.7 C (89.1 F)
2010	30.0 C (86.0 F)
2011	30.6 C (87.1 F)
2012	30.6 C (87.1 F)
2013	30.6 C (87.1 F)

Coldest night (TNn)

The coldest night of the year at Union Zaragoza, 1982 to 2013. The record is 0.0 C (32.0 F) in 1989, marked on the chart; the median year is 3.9 C (39.0 F).

Coldest night (TNn) at Union Zaragoza by year
Year	Coldest night (TNn)
1982	3.9 C (39.0 F)
1983	2.8 C (37.0 F)
1984	3.9 C (39.0 F)
1985	3.3 C (37.9 F)
1986	1.7 C (35.1 F)
1987	2.8 C (37.0 F)
1988	3.9 C (39.0 F)
1989	0.0 C (32.0 F)
1990	3.9 C (39.0 F)
1991	3.9 C (39.0 F)
1992	5.6 C (42.1 F)
1993	3.3 C (37.9 F)
1994	0.0 C (32.0 F)
1995	0.0 C (32.0 F)
1996	2.8 C (37.0 F)
1997	3.9 C (39.0 F)
1998	2.2 C (36.0 F)
1999	3.9 C (39.0 F)
2000	6.1 C (43.0 F)
2001	5.6 C (42.1 F)
2002	5.0 C (41.0 F)
2003	3.9 C (39.0 F)
2004	3.9 C (39.0 F)
2005	2.8 C (37.0 F)
2006	0.6 C (33.1 F)
2007	2.8 C (37.0 F)
2008	6.7 C (44.1 F)
2009	1.7 C (35.1 F)
2010	5.0 C (41.0 F)
2011	2.8 C (37.0 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 Union Zaragoza, 1982 to 2013. The record is 182.9 mm (7.2 in) in 2010, marked on the chart; the median year is 66.6 mm (2.6 in).

Wettest day (Rx1day) at Union Zaragoza by year
Year	Wettest day (Rx1day)
1982	99.8 mm (3.9 in)
1983	72.9 mm (2.9 in)
1984	59.9 mm (2.4 in)
1985	72.9 mm (2.9 in)
1986	99.8 mm (3.9 in)
1987	99.8 mm (3.9 in)
1988	69.9 mm (2.8 in)
1989	69.9 mm (2.8 in)
1990	40.1 mm (1.6 in)
1991	70.1 mm (2.8 in)
1992	80.0 mm (3.1 in)
1993	47.8 mm (1.9 in)
1994	80.0 mm (3.1 in)
1995	60.2 mm (2.4 in)
1996	70.1 mm (2.8 in)
1997	58.9 mm (2.3 in)
1998	31.8 mm (1.3 in)
1999	30.0 mm (1.2 in)
2000	52.3 mm (2.1 in)
2001	60.2 mm (2.4 in)
2002	65.0 mm (2.6 in)
2003	39.9 mm (1.6 in)
2004	68.1 mm (2.7 in)
2005	69.9 mm (2.8 in)
2006	59.9 mm (2.4 in)
2007	120.1 mm (4.7 in)
2008	65.0 mm (2.6 in)
2009	62.0 mm (2.4 in)
2010	182.9 mm (7.2 in)
2011	69.9 mm (2.8 in)
2012	59.9 mm (2.4 in)
2013	17.8 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Union Zaragoza, 1982 to 2013. The record is 404.6 mm (15.9 in) in 2010, marked on the chart; the median year is 147.0 mm (5.8 in).

Wettest five days (Rx5day) at Union Zaragoza by year
Year	Wettest five days (Rx5day)
1982	156.5 mm (6.2 in)
1983	181.2 mm (7.1 in)
1984	137.0 mm (5.4 in)
1985	205.1 mm (8.1 in)
1986	168.6 mm (6.6 in)
1987	138.2 mm (5.4 in)
1988	162.9 mm (6.4 in)
1989	88.5 mm (3.5 in)
1990	86.1 mm (3.4 in)
1991	145.8 mm (5.7 in)
1992	168.6 mm (6.6 in)
1993	190.5 mm (7.5 in)
1994	148.1 mm (5.8 in)
1995	261.4 mm (10.3 in)
1996	169.5 mm (6.7 in)
1997	82.0 mm (3.2 in)
1998	106.2 mm (4.2 in)
1999	85.7 mm (3.4 in)
2000	99.5 mm (3.9 in)
2001	136.9 mm (5.4 in)
2002	155.9 mm (6.1 in)
2003	96.0 mm (3.8 in)
2004	142.7 mm (5.6 in)
2005	169.5 mm (6.7 in)
2006	111.2 mm (4.4 in)
2007	150.5 mm (5.9 in)
2008	203.9 mm (8.0 in)
2009	141.1 mm (5.6 in)
2010	404.6 mm (15.9 in)
2011	209.1 mm (8.2 in)
2012	133.3 mm (5.2 in)
2013	43.4 mm (1.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Union Zaragoza, 1982 to 2013. The record is 92 days in 1987, marked on the chart; the median year is 28 days.

Longest dry spell (CDD) at Union Zaragoza by year
Year	Longest dry spell (CDD)
1982	19 days
1983	41 days
1984	24 days
1985	30 days
1986	38 days
1987	92 days
1988	32 days
1989	36 days
1990	12 days
1991	37 days
1992	34 days
1993	14 days
1994	13 days
1995	21 days
1996	39 days
1997	24 days
1998	44 days
1999	43 days
2000	26 days
2001	24 days
2002	25 days
2003	31 days
2004	32 days
2005	32 days
2006	18 days
2007	19 days
2008	16 days
2009	18 days
2010	45 days
2011	23 days
2012	21 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.

Rainfall Return Levels

31 years, 1982 to 2012

A day with at least 64.7 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 166.6 mm (6.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Union Zaragoza: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	64.7 mm (2.5 in)
5 years	87.1 mm (3.4 in)
10 years	103.7 mm (4.1 in)
25 years	127.0 mm (5.0 in)
50 years	146.0 mm (5.7 in)	Longer than the 31 years of record
100 years	166.6 mm (6.6 in)	Longer than the 31 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, 31 years of values from 1982 to 2012.

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: 182.9 mm (7.2 in) in 2010; 120.1 mm (4.7 in) in 2007; 99.8 mm (3.9 in) in 1982.

Download the Data

Data for Union Zaragoza standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Union Zaragoza 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 2026-10-13 (13 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).