E.T.A. 340 Zirandaro Weather Records (MXN00012160)

Record envelope, standing records and threshold days for E.T.A. 340 Zirandaro (MXN00012160), Mexico, with 40 years of record.

Key Facts for E.T.A. 340 Zirandaro

E.T.A. 340 Zirandaro (MXN00012160) is a weather station in Mexico at 18.47 latitude and -100.97 longitude, 190 m (623 ft) above sea level.
The station reports from 1974 to 2013, 40 years of record.
1,464 records set at E.T.A. 340 Zirandaro still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
E.T.A. 340 Zirandaro tied a daily record high maximum temperature of 36.7 C (98.1 F) on 23 July 2013.

About the Station

Location: Mexico, 18.47 latitude, -100.97 longitude.
Elevation: 190 m (623 ft).
Period of record: 1974 to 2013, 40 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 E.T.A. 340 Zirandaro. 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 E.T.A. 340 Zirandaro, 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)	8.9 C (48.0 F)	n/a	n/a
Feb	40.6 C (105.1 F)	10.6 C (51.1 F)	n/a	n/a
Mar	43.9 C (111.0 F)	11.7 C (53.1 F)	n/a	n/a
Apr	45.0 C (113.0 F)	13.9 C (57.0 F)	n/a	n/a
May	45.0 C (113.0 F)	12.8 C (55.0 F)	n/a	n/a
Jun	45.0 C (113.0 F)	15.6 C (60.1 F)	n/a	n/a
Jul	39.4 C (102.9 F)	15.6 C (60.1 F)	n/a	n/a
Aug	41.7 C (107.1 F)	13.3 C (55.9 F)	n/a	n/a
Sep	37.8 C (100.0 F)	14.4 C (57.9 F)	n/a	n/a
Oct	38.9 C (102.0 F)	16.7 C (62.1 F)	n/a	n/a
Nov	40.0 C (104.0 F)	12.8 C (55.0 F)	n/a	n/a
Dec	40.0 C (104.0 F)	11.7 C (53.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at E.T.A. 340 Zirandaro still stand. 1990 holds the most, with 229.

Standing records at E.T.A. 340 Zirandaro by the year they were set
Year set	Standing records
1974	46
1975	28
1976	28
1977	34
1978	41
1979	62
1980	37
1981	24
1982	45
1983	31
1984	55
1985	10
1986	26
1987	4
1988	19
1989	82
1990	229
1991	13
1992	62
1994	19
1995	18
1996	17
1997	22
1998	46
1999	78
2000	45
2001	28
2002	19
2003	22
2004	47
2005	37
2006	36
2007	26
2008	36
2009	11
2010	34
2011	10
2012	23
2013	14

All-Time Record Progression

1 new records

1 all-time records were set at E.T.A. 340 Zirandaro between 18 February 2010 and 18 February 2010. Each dot is a new record.

Wettest Day of Each Month

Jul: 200.9 mm (7.9 in)

The wettest day on record for each calendar month at E.T.A. 340 Zirandaro. The most was 200.9 mm (7.9 in) on 3 July 2001.

Record daily precipitation for each month at E.T.A. 340 Zirandaro
Month	Record daily precipitation (mm)	Date
Jan	78.0 mm (3.1 in)	24 January 1980
Feb	102.1 mm (4.0 in)	3 February 2010
Mar	34.8 mm (1.4 in)	2 March 2001
Apr	49.8 mm (2.0 in)	15 April 1995
May	49.8 mm (2.0 in)	31 May 2004
Jun	78.0 mm (3.1 in)	9 June 1984
Jul	200.9 mm (7.9 in)	3 July 2001
Aug	102.4 mm (4.0 in)	5 August 2007
Sep	102.1 mm (4.0 in)	4 September 2010
Oct	62.2 mm (2.4 in)	5 October 1996
Nov	42.9 mm (1.7 in)	7 November 2006
Dec	19.8 mm (0.8 in)	5 December 1985

Period of Record Coverage

1974 to 2013

39 years of record at E.T.A. 340 Zirandaro, 1974 to 2013. 14 years have data for under 90 percent of days and are left out of rankings: 1974, 1982, 1983, 1985, 1987, 1991, 1995, 1997 and others.

Days with data per year at E.T.A. 340 Zirandaro
Year	Days with data	Share of year	Complete
1974	244	67%	No
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	332	91%	Yes
1981	363	99%	Yes
1982	273	75%	No
1983	235	64%	No
1984	360	98%	Yes
1985	316	87%	No
1986	333	91%	Yes
1987	92	25%	No
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	245	67%	No
1992	360	98%	Yes
1994	365	100%	Yes
1995	298	82%	No
1996	366	100%	Yes
1997	324	89%	No
1998	365	100%	Yes
1999	344	94%	Yes
2000	334	91%	Yes
2001	365	100%	Yes
2002	305	84%	No
2003	231	63%	No
2004	204	56%	No
2005	277	76%	No
2006	334	92%	Yes
2007	317	87%	No
2008	359	98%	Yes
2009	350	96%	Yes
2010	365	100%	Yes
2011	364	100%	Yes
2012	355	97%	Yes
2013	212	58%	No

Latest Records

Latest records at E.T.A. 340 Zirandaro
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 July 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	36.7 C (98.1 F)	tie	36 years	3 of 100 (Routine)
22 July 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	36.7 C (98.1 F)	tie	19 years	2 of 100 (Routine)
20 July 2013	E.T.A. 340 Zirandaro, MX	daily high max	36.7 C (98.1 F)	1.1 C (2.0 F)	36 years	21 of 100 (Routine)
16 July 2013	E.T.A. 340 Zirandaro, MX	daily rain	34.8 mm (1.4 in)	13.0 mm (0.5 in)	31 years	20 of 100 (Routine)
24 May 2013	E.T.A. 340 Zirandaro, MX	daily rain	11.9 mm (0.5 in)	3.8 mm (0.15 in)	18 years	12 of 100 (Routine)
17 May 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	23 years	2 of 100 (Routine)
30 April 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	10 years	1 of 100 (Routine)
29 April 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	10 years	1 of 100 (Routine)
28 April 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	10 years	1 of 100 (Routine)
27 April 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	10 years	1 of 100 (Routine)
22 April 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	10 years	1 of 100 (Routine)
21 April 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	7 years	1 of 100 (Routine)
20 April 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	7 years	1 of 100 (Routine)
19 April 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	23 years	2 of 100 (Routine)
18 April 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	10 years	1 of 100 (Routine)
30 March 2013	E.T.A. 340 Zirandaro, MX	daily high max	42.8 C (109.0 F)	1.1 C (2.0 F)	34 years	19 of 100 (Routine)
29 March 2013	E.T.A. 340 Zirandaro, MX	daily high max	42.8 C (109.0 F)	1.1 C (2.0 F)	8 years	11 of 100 (Routine)
28 March 2013	E.T.A. 340 Zirandaro, MX	daily high max	42.8 C (109.0 F)	1.1 C (2.0 F)	31 years	18 of 100 (Routine)
27 March 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	41.7 C (107.1 F)	tie	28 years	3 of 100 (Routine)
26 March 2013	E.T.A. 340 Zirandaro, MX	daily high max (Tie)	41.7 C (107.1 F)	tie	8 years	1 of 100 (Routine)

Climate Trend

17 complete years, 1975 to 2011

One stripe for each of 17 complete years at E.T.A. 340 Zirandaro, 1975 to 2011. Blue stripes are years cooler than the station's own mean of 28.3 C (82.9 F); red stripes are warmer. The coolest year was 1984, at 27.6 C (81.6 F), and the warmest was 1990, at 29.3 C (84.7 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at E.T.A. 340 Zirandaro as warming stripes, 1975 to 2011
Year	Annual mean temperature	Difference from the station mean
1975	28.1 C	-0.22 C
1976	28.3 C	-0.03 C
1977	28.2 C	-0.06 C
1978	28.4 C	+0.09 C
1979	28.5 C	+0.18 C
1981	28.1 C	-0.21 C
1984	27.6 C	-0.71 C
1988	28.5 C	+0.23 C
1989	27.6 C	-0.64 C
1990	29.3 C	+0.99 C
1992	28.3 C	+0.02 C
1994	28.2 C	-0.05 C
1996	28.3 C	+0.06 C
1998	28.3 C	+0.03 C
2001	28.8 C	+0.50 C
2008	28.1 C	-0.16 C
2011	28.2 C	-0.05 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

1974 to 2013

Yearly extremes at E.T.A. 340 Zirandaro: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.0 C (113.0 F)	1976	42.8 C (109.0 F)	39
Coldest night (TNn)	8.9 C (48.0 F)	1997	13.9 C (57.0 F)	39
Wettest day (Rx1day)	200.9 mm (7.9 in)	2001	64.8 mm (2.6 in)	39
Wettest five days (Rx5day)	277.9 mm (10.9 in)	2001	107.9 mm (4.2 in)	39
Longest dry spell (CDD)	163 days	2000	100 days	39

Hottest day (TXx)

The hottest day of the year at E.T.A. 340 Zirandaro, 1974 to 2013. The record is 45.0 C (113.0 F) in 1976, marked on the chart; the median year is 42.8 C (109.0 F).

Hottest day (TXx) at E.T.A. 340 Zirandaro by year
Year	Hottest day (TXx)
1974	41.7 C (107.1 F)
1975	42.8 C (109.0 F)
1976	45.0 C (113.0 F)
1977	42.8 C (109.0 F)
1978	42.8 C (109.0 F)
1979	42.8 C (109.0 F)
1980	42.8 C (109.0 F)
1981	42.8 C (109.0 F)
1982	42.8 C (109.0 F)
1983	45.0 C (113.0 F)
1984	45.0 C (113.0 F)
1985	42.2 C (108.0 F)
1986	42.8 C (109.0 F)
1987	36.1 C (97.0 F)
1988	42.8 C (109.0 F)
1989	43.3 C (109.9 F)
1990	45.0 C (113.0 F)
1991	41.1 C (106.0 F)
1992	45.0 C (113.0 F)
1994	45.0 C (113.0 F)
1995	42.8 C (109.0 F)
1996	42.8 C (109.0 F)
1997	42.8 C (109.0 F)
1998	43.9 C (111.0 F)
1999	43.9 C (111.0 F)
2000	41.7 C (107.1 F)
2001	43.9 C (111.0 F)
2002	41.7 C (107.1 F)
2003	43.9 C (111.0 F)
2004	43.9 C (111.0 F)
2005	45.0 C (113.0 F)
2006	45.0 C (113.0 F)
2007	43.9 C (111.0 F)
2008	43.9 C (111.0 F)
2009	42.8 C (109.0 F)
2010	43.9 C (111.0 F)
2011	42.8 C (109.0 F)
2012	45.0 C (113.0 F)
2013	43.9 C (111.0 F)

Coldest night (TNn)

The coldest night of the year at E.T.A. 340 Zirandaro, 1974 to 2013. The record is 8.9 C (48.0 F) in 1997, marked on the chart; the median year is 13.9 C (57.0 F).

Coldest night (TNn) at E.T.A. 340 Zirandaro by year
Year	Coldest night (TNn)
1974	15.6 C (60.1 F)
1975	12.8 C (55.0 F)
1976	12.8 C (55.0 F)
1977	13.9 C (57.0 F)
1978	13.9 C (57.0 F)
1979	12.8 C (55.0 F)
1980	11.7 C (53.1 F)
1981	13.9 C (57.0 F)
1982	15.0 C (59.0 F)
1983	15.0 C (59.0 F)
1984	13.9 C (57.0 F)
1985	15.6 C (60.1 F)
1986	13.9 C (57.0 F)
1987	16.7 C (62.1 F)
1988	15.0 C (59.0 F)
1989	13.3 C (55.9 F)
1990	14.4 C (57.9 F)
1991	16.7 C (62.1 F)
1992	10.6 C (51.1 F)
1994	15.6 C (60.1 F)
1995	13.9 C (57.0 F)
1996	11.7 C (53.1 F)
1997	8.9 C (48.0 F)
1998	10.6 C (51.1 F)
1999	10.6 C (51.1 F)
2000	15.6 C (60.1 F)
2001	13.9 C (57.0 F)
2002	12.8 C (55.0 F)
2003	13.9 C (57.0 F)
2004	13.9 C (57.0 F)
2005	13.9 C (57.0 F)
2006	13.9 C (57.0 F)
2007	13.9 C (57.0 F)
2008	11.7 C (53.1 F)
2009	13.9 C (57.0 F)
2010	11.7 C (53.1 F)
2011	10.6 C (51.1 F)
2012	12.8 C (55.0 F)
2013	15.6 C (60.1 F)

Wettest day (Rx1day)

The wettest day of the year at E.T.A. 340 Zirandaro, 1974 to 2013. The record is 200.9 mm (7.9 in) in 2001, marked on the chart; the median year is 64.8 mm (2.6 in).

Wettest day (Rx1day) at E.T.A. 340 Zirandaro by year
Year	Wettest day (Rx1day)
1974	64.8 mm (2.6 in)
1975	51.3 mm (2.0 in)
1976	58.9 mm (2.3 in)
1977	75.4 mm (3.0 in)
1978	71.9 mm (2.8 in)
1979	56.4 mm (2.2 in)
1980	78.0 mm (3.1 in)
1981	86.9 mm (3.4 in)
1982	79.8 mm (3.1 in)
1983	95.0 mm (3.7 in)
1984	78.0 mm (3.1 in)
1985	47.8 mm (1.9 in)
1986	40.4 mm (1.6 in)
1987	0.3 mm (0.01 in)
1988	61.0 mm (2.4 in)
1989	90.4 mm (3.6 in)
1990	54.9 mm (2.2 in)
1991	59.9 mm (2.4 in)
1992	47.5 mm (1.9 in)
1994	34.8 mm (1.4 in)
1995	81.8 mm (3.2 in)
1996	88.9 mm (3.5 in)
1997	76.2 mm (3.0 in)
1998	48.0 mm (1.9 in)
1999	47.8 mm (1.9 in)
2000	35.8 mm (1.4 in)
2001	200.9 mm (7.9 in)
2002	67.3 mm (2.6 in)
2003	98.3 mm (3.9 in)
2004	60.2 mm (2.4 in)
2005	58.2 mm (2.3 in)
2006	55.4 mm (2.2 in)
2007	102.4 mm (4.0 in)
2008	80.0 mm (3.1 in)
2009	73.7 mm (2.9 in)
2010	102.1 mm (4.0 in)
2011	51.1 mm (2.0 in)
2012	82.0 mm (3.2 in)
2013	46.2 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at E.T.A. 340 Zirandaro, 1974 to 2013. The record is 277.9 mm (10.9 in) in 2001, marked on the chart; the median year is 107.9 mm (4.2 in).

Wettest five days (Rx5day) at E.T.A. 340 Zirandaro by year
Year	Wettest five days (Rx5day)
1974	94.5 mm (3.7 in)
1975	107.9 mm (4.2 in)
1976	85.6 mm (3.4 in)
1977	133.8 mm (5.3 in)
1978	105.7 mm (4.2 in)
1979	104.9 mm (4.1 in)
1980	151.5 mm (6.0 in)
1981	136.5 mm (5.4 in)
1982	107.7 mm (4.2 in)
1983	119.9 mm (4.7 in)
1984	170.7 mm (6.7 in)
1985	81.3 mm (3.2 in)
1986	129.3 mm (5.1 in)
1987	0.3 mm (0.01 in)
1988	101.6 mm (4.0 in)
1989	114.8 mm (4.5 in)
1990	89.7 mm (3.5 in)
1991	109.1 mm (4.3 in)
1992	80.3 mm (3.2 in)
1994	62.4 mm (2.5 in)
1995	172.7 mm (6.8 in)
1996	136.7 mm (5.4 in)
1997	117.1 mm (4.6 in)
1998	81.8 mm (3.2 in)
1999	104.7 mm (4.1 in)
2000	81.3 mm (3.2 in)
2001	277.9 mm (10.9 in)
2002	118.1 mm (4.6 in)
2003	122.4 mm (4.8 in)
2004	106.2 mm (4.2 in)
2005	123.2 mm (4.9 in)
2006	105.2 mm (4.1 in)
2007	107.2 mm (4.2 in)
2008	138.9 mm (5.5 in)
2009	116.6 mm (4.6 in)
2010	165.1 mm (6.5 in)
2011	104.9 mm (4.1 in)
2012	130.8 mm (5.1 in)
2013	59.7 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at E.T.A. 340 Zirandaro, 1974 to 2013. The record is 163 days in 2000, marked on the chart; the median year is 100 days.

Longest dry spell (CDD) at E.T.A. 340 Zirandaro by year
Year	Longest dry spell (CDD)
1974	37 days
1975	109 days
1976	116 days
1977	63 days
1978	73 days
1979	83 days
1980	95 days
1981	52 days
1982	88 days
1983	45 days
1984	59 days
1985	44 days
1986	144 days
1987	92 days
1988	160 days
1989	148 days
1990	153 days
1991	75 days
1992	100 days
1994	153 days
1995	45 days
1996	116 days
1997	78 days
1998	159 days
1999	136 days
2000	163 days
2001	79 days
2002	83 days
2003	142 days
2004	127 days
2005	95 days
2006	120 days
2007	144 days
2008	148 days
2009	136 days
2010	109 days
2011	100 days
2012	74 days
2013	73 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, 1975 to 2012

A day with at least 64.9 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 175.1 mm (6.9 in) of rain is expected about once in 100 years.

Rainfall return levels at E.T.A. 340 Zirandaro: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	64.9 mm (2.6 in)
5 years	88.7 mm (3.5 in)
10 years	106.6 mm (4.2 in)
25 years	131.7 mm (5.2 in)
50 years	152.5 mm (6.0 in)	Longer than the 31 years of record
100 years	175.1 mm (6.9 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 1975 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: 200.9 mm (7.9 in) in 2001; 102.4 mm (4.0 in) in 2007; 102.1 mm (4.0 in) in 2010.

Download the Data

Data for E.T.A. 340 Zirandaro standing records by year: CSV or JSON. Field meanings are on the data page.
Data for E.T.A. 340 Zirandaro 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).