Presa El Tigre Weather Records (MXN00015071)

Record envelope, standing records and threshold days for Presa El Tigre (MXN00015071), Mexico, with 49 years of record.

Key Facts for Presa El Tigre

Presa El Tigre (MXN00015071) is a weather station in Mexico at 19.77 latitude and -99.68 longitude, 2,710 m (8,891 ft) above sea level.
The station reports from 1961 to 2009, 49 years of record.
1,464 records set at Presa El Tigre still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Presa El Tigre set a daily record high maximum temperature of 22.2 C (72.0 F) on 25 July 2009.

About the Station

Location: Mexico, 19.77 latitude, -99.68 longitude.
Elevation: 2,710 m (8,891 ft).
Period of record: 1961 to 2009, 49 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 Presa El Tigre. 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 Presa El Tigre, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.0 C (77.0 F)	-12.2 C (10.0 F)	n/a	n/a
Feb	25.6 C (78.1 F)	-10.0 C (14.0 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-7.8 C (18.0 F)	n/a	n/a
Apr	32.8 C (91.0 F)	-7.2 C (19.0 F)	n/a	n/a
May	30.6 C (87.1 F)	-3.3 C (26.1 F)	n/a	n/a
Jun	35.0 C (95.0 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	30.0 C (86.0 F)	0.6 C (33.1 F)	n/a	n/a
Aug	25.6 C (78.1 F)	1.7 C (35.1 F)	n/a	n/a
Sep	27.8 C (82.0 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	25.0 C (77.0 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-10.0 C (14.0 F)	n/a	n/a
Dec	25.0 C (77.0 F)	-9.4 C (15.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Presa El Tigre still stand. 2007 holds the most, with 146.

Standing records at Presa El Tigre by the year they were set
Year set	Standing records
1961	40
1962	46
1963	29
1964	47
1965	36
1966	54
1967	31
1968	27
1969	43
1970	28
1971	25
1972	23
1973	38
1974	35
1975	31
1976	34
1977	27
1978	29
1979	43
1980	34
1981	12
1982	24
1983	41
1984	29
1985	22
1986	37
1987	49
1988	27
1989	25
1990	15
1991	17
1992	24
1993	13
1994	13
1995	22
1996	20
1997	47
1998	50
1999	25
2000	19
2001	20
2002	17
2003	25
2007	146
2008	15
2009	10

All-Time Record Progression

11 new records

11 all-time records were set at Presa El Tigre between 27 September 1998 and 23 August 2008. Each dot is a new record.

When Presa El Tigre set new all-time records
Date	Kind	Detail
1998-09-27	Record high minimum temperature	Record high minimum temperature 12.8 C (55.0 F)
2007-06-01	Record high minimum temperature	Record high minimum temperature 14.4 C (57.9 F)
2007-06-02	Record high minimum temperature	Record high minimum temperature 15.0 C (59.0 F)
2007-06-03	Record high maximum temperature	Record high maximum temperature 33.9 C (93.0 F)
2007-06-03	Record high minimum temperature	Record high minimum temperature 15.6 C (60.1 F)
2007-06-04	Record high maximum temperature	Record high maximum temperature 35.0 C (95.0 F)
2007-06-04	Record high minimum temperature	Record high minimum temperature 16.7 C (62.1 F)
2007-06-05	Record high minimum temperature	Record high minimum temperature 18.9 C (66.0 F)
2008-06-12	Record daily precipitation	Record daily precipitation 79.8 mm (3.1 in)
2008-07-10	Record daily precipitation	Record daily precipitation 89.9 mm (3.5 in)
2008-08-23	Record daily precipitation	Record daily precipitation 95.0 mm (3.7 in)

Wettest Day of Each Month

Aug: 95.0 mm (3.7 in)

The wettest day on record for each calendar month at Presa El Tigre. The most was 95.0 mm (3.7 in) on 23 August 2008.

Record daily precipitation for each month at Presa El Tigre
Month	Record daily precipitation (mm)	Date
Jan	42.4 mm (1.7 in)	28 January 1992
Feb	24.9 mm (1.0 in)	2 February 1992
Mar	34.8 mm (1.4 in)	4 March 1988
Apr	45.0 mm (1.8 in)	29 April 2008
May	64.8 mm (2.6 in)	16 May 2008
Jun	79.8 mm (3.1 in)	12 June 2008
Jul	89.9 mm (3.5 in)	10 July 2008
Aug	95.0 mm (3.7 in)	23 August 2008
Sep	78.5 mm (3.1 in)	22 September 1974
Oct	45.5 mm (1.8 in)	1 October 1971
Nov	22.4 mm (0.9 in)	3 November 1980
Dec	23.9 mm (0.9 in)	1 December 1967

Period of Record Coverage

1961 to 2009

46 years of record at Presa El Tigre, 1961 to 2009. 5 years have data for under 90 percent of days and are left out of rankings: 2001, 2002, 2003, 2007, 2009.

Days with data per year at Presa El Tigre
Year	Days with data	Share of year	Complete
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	337	92%	Yes
1970	334	92%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	364	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	364	100%	Yes
1986	360	99%	Yes
1987	363	99%	Yes
1988	366	100%	Yes
1989	355	97%	Yes
1990	364	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	354	97%	Yes
1994	361	99%	Yes
1995	359	98%	Yes
1996	363	99%	Yes
1997	360	99%	Yes
1998	362	99%	Yes
1999	362	99%	Yes
2000	362	99%	Yes
2001	319	87%	No
2002	283	78%	No
2003	302	83%	No
2007	141	39%	No
2008	366	100%	Yes
2009	243	67%	No

Latest Records

Latest records at Presa El Tigre
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 July 2009	Presa El Tigre, MX	daily high max	22.2 C (72.0 F)	0.5 C (0.9 F)	47 years	20 of 100 (Routine)
9 July 2009	Presa El Tigre, MX	daily high max	25.0 C (77.0 F)	2.8 C (5.0 F)	12 years	23 of 100 (Routine)
20 May 2009	Presa El Tigre, MX	daily low max	16.7 C (62.1 F)	1.1 C (2.0 F)	28 years	15 of 100 (Routine)
19 May 2009	Presa El Tigre, MX	daily low max	13.9 C (57.0 F)	3.9 C (7.0 F)	32 years	26 of 100 (Routine)
18 May 2009	Presa El Tigre, MX	daily high min	10.6 C (51.1 F)	0.6 C (1.1 F)	27 years	14 of 100 (Routine)
17 May 2009	Presa El Tigre, MX	daily high min (Tie)	10.0 C (50.0 F)	tie	31 years	3 of 100 (Routine)
15 May 2009	Presa El Tigre, MX	daily high min	10.6 C (51.1 F)	1.7 C (3.1 F)	28 years	19 of 100 (Routine)
13 May 2009	Presa El Tigre, MX	daily high min	10.6 C (51.1 F)	0.6 C (1.1 F)	38 years	17 of 100 (Routine)
1 May 2009	Presa El Tigre, MX	daily low min (Tie)	0.6 C (33.1 F)	tie	22 years	2 of 100 (Routine)
6 April 2009	Presa El Tigre, MX	monthly high min (Tie)	10.0 C (50.0 F)	tie	42 years	6 of 100 (Routine)
1 April 2009	Presa El Tigre, MX	daily rain	7.9 mm (0.31 in)	6.6 mm (0.26 in)	20 years	20 of 100 (Routine)
1 March 2009	Presa El Tigre, MX	daily high min (Tie)	6.7 C (44.1 F)	tie	12 years	1 of 100 (Routine)
24 February 2009	Presa El Tigre, MX	daily low max (Tie)	16.7 C (62.1 F)	tie	35 years	3 of 100 (Routine)
23 February 2009	Presa El Tigre, MX	daily low max (Tie)	11.7 C (53.1 F)	tie	19 years	2 of 100 (Routine)
19 February 2009	Presa El Tigre, MX	daily rain	1.8 mm (0.07 in)	1.5 mm (0.06 in)	39 years	18 of 100 (Routine)
16 February 2009	Presa El Tigre, MX	daily high max (Tie)	25.0 C (77.0 F)	tie	16 years	2 of 100 (Routine)
9 February 2009	Presa El Tigre, MX	daily high max (Tie)	23.3 C (73.9 F)	tie	6 years	1 of 100 (Routine)
28 January 2009	Presa El Tigre, MX	daily high max (Tie)	22.2 C (72.0 F)	tie	40 years	4 of 100 (Routine)
17 January 2009	Presa El Tigre, MX	daily high min	5.0 C (41.0 F)	1.1 C (2.0 F)	28 years	15 of 100 (Routine)
16 January 2009	Presa El Tigre, MX	daily high min (Tie)	5.6 C (42.1 F)	tie	45 years	4 of 100 (Routine)

Climate Trend

39 complete years, 1961 to 2008

One stripe for each of 39 complete years at Presa El Tigre, 1961 to 2008. Blue stripes are years cooler than the station's own mean of 12.0 C (53.6 F); red stripes are warmer. The coolest year was 1968, at 11.5 C (52.6 F), and the warmest was 1998, at 13.0 C (55.3 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Presa El Tigre as warming stripes, 1961 to 2008
Year	Annual mean temperature	Difference from the station mean
1961	11.6 C	-0.39 C
1962	12.0 C	-0.01 C
1963	12.1 C	+0.14 C
1964	12.2 C	+0.20 C
1965	11.9 C	-0.09 C
1966	11.6 C	-0.41 C
1967	11.6 C	-0.38 C
1968	11.5 C	-0.53 C
1971	11.8 C	-0.17 C
1972	12.1 C	+0.12 C
1973	12.2 C	+0.25 C
1974	11.5 C	-0.46 C
1975	11.6 C	-0.36 C
1976	11.8 C	-0.21 C
1977	11.9 C	-0.09 C
1978	12.2 C	+0.22 C
1979	11.9 C	-0.06 C
1980	12.2 C	+0.17 C
1981	12.0 C	-0.01 C
1982	12.1 C	+0.15 C
1983	11.9 C	-0.13 C
1984	11.6 C	-0.37 C
1985	11.6 C	-0.42 C
1986	11.9 C	-0.08 C
1987	12.0 C	+0.03 C
1988	12.1 C	+0.14 C
1989	11.9 C	-0.11 C
1990	12.3 C	+0.27 C
1991	12.4 C	+0.45 C
1992	11.9 C	-0.13 C
1993	12.1 C	+0.08 C
1994	12.4 C	+0.45 C
1995	12.7 C	+0.67 C
1996	12.1 C	+0.16 C
1997	12.3 C	+0.30 C
1998	13.0 C	+0.98 C
1999	11.8 C	-0.22 C
2000	12.0 C	+0.06 C
2008	11.9 C	-0.04 C

The annual mean temperature here has risen by 0.11 C (0.04 to 0.19) per decade over 1961 to 2008. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Presa El Tigre
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.11 C (0.04 to 0.19) per decade	0.2 F (0.1 to 0.3) per decade	1961 to 2008	39	Rise
Mean daily maximum	0.11 C (-0.01 to 0.23) per decade	0.20 F (-0.02 to 0.41) per decade	1961 to 2008	39	Not clearly different from zero
Mean daily minimum	0.12 C (0.01 to 0.23) per decade	0.21 F (0.01 to 0.41) per decade	1961 to 2008	39	Rise

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 2009

Yearly extremes at Presa El Tigre: 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)	2007	27.8 C (82.0 F)	46
Coldest night (TNn)	-12.2 C (10.0 F)	1986	-7.2 C (19.0 F)	46
Wettest day (Rx1day)	95.0 mm (3.7 in)	2008	41.2 mm (1.6 in)	46
Wettest five days (Rx5day)	232.9 mm (9.2 in)	2008	87.3 mm (3.4 in)	46
Longest dry spell (CDD)	135 days	1998	44 days	46

Hottest day (TXx)

The hottest day of the year at Presa El Tigre, 1961 to 2009. The record is 35.0 C (95.0 F) in 2007, marked on the chart; the median year is 27.8 C (82.0 F).

Hottest day (TXx) at Presa El Tigre by year
Year	Hottest day (TXx)
1961	27.2 C (81.0 F)
1962	28.9 C (84.0 F)
1963	28.3 C (82.9 F)
1964	30.6 C (87.1 F)
1965	27.8 C (82.0 F)
1966	27.8 C (82.0 F)
1967	27.2 C (81.0 F)
1968	25.6 C (78.1 F)
1969	30.0 C (86.0 F)
1970	30.0 C (86.0 F)
1971	30.0 C (86.0 F)
1972	26.7 C (80.1 F)
1973	30.0 C (86.0 F)
1974	27.2 C (81.0 F)
1975	28.9 C (84.0 F)
1976	25.6 C (78.1 F)
1977	28.9 C (84.0 F)
1978	30.0 C (86.0 F)
1979	27.8 C (82.0 F)
1980	26.7 C (80.1 F)
1981	27.2 C (81.0 F)
1982	27.8 C (82.0 F)
1983	30.0 C (86.0 F)
1984	30.0 C (86.0 F)
1985	26.7 C (80.1 F)
1986	27.8 C (82.0 F)
1987	26.1 C (79.0 F)
1988	32.8 C (91.0 F)
1989	27.8 C (82.0 F)
1990	27.8 C (82.0 F)
1991	29.4 C (84.9 F)
1992	25.0 C (77.0 F)
1993	27.8 C (82.0 F)
1994	27.8 C (82.0 F)
1995	28.9 C (84.0 F)
1996	28.9 C (84.0 F)
1997	25.6 C (78.1 F)
1998	30.6 C (87.1 F)
1999	28.3 C (82.9 F)
2000	27.8 C (82.0 F)
2001	28.9 C (84.0 F)
2002	27.8 C (82.0 F)
2003	30.0 C (86.0 F)
2007	35.0 C (95.0 F)
2008	26.7 C (80.1 F)
2009	26.7 C (80.1 F)

Coldest night (TNn)

The coldest night of the year at Presa El Tigre, 1961 to 2009. The record is -12.2 C (10.0 F) in 1986, marked on the chart; the median year is -7.2 C (19.0 F).

Coldest night (TNn) at Presa El Tigre by year
Year	Coldest night (TNn)
1961	-10.0 C (14.0 F)
1962	-8.3 C (17.1 F)
1963	-9.4 C (15.1 F)
1964	-3.9 C (25.0 F)
1965	-7.8 C (18.0 F)
1966	-11.1 C (12.0 F)
1967	-8.3 C (17.1 F)
1968	-7.8 C (18.0 F)
1969	-7.2 C (19.0 F)
1970	-7.8 C (18.0 F)
1971	-7.2 C (19.0 F)
1972	-10.0 C (14.0 F)
1973	-7.2 C (19.0 F)
1974	-7.8 C (18.0 F)
1975	-8.3 C (17.1 F)
1976	-10.0 C (14.0 F)
1977	-5.0 C (23.0 F)
1978	-5.0 C (23.0 F)
1979	-6.1 C (21.0 F)
1980	-7.2 C (19.0 F)
1981	-7.2 C (19.0 F)
1982	-8.3 C (17.1 F)
1983	-8.3 C (17.1 F)
1984	-7.2 C (19.0 F)
1985	-6.1 C (21.0 F)
1986	-12.2 C (10.0 F)
1987	-8.9 C (16.0 F)
1988	-11.1 C (12.0 F)
1989	-7.2 C (19.0 F)
1990	-6.1 C (21.0 F)
1991	-5.0 C (23.0 F)
1992	-5.6 C (21.9 F)
1993	-6.1 C (21.0 F)
1994	-7.2 C (19.0 F)
1995	-5.0 C (23.0 F)
1996	-8.3 C (17.1 F)
1997	-8.3 C (17.1 F)
1998	-8.3 C (17.1 F)
1999	-7.2 C (19.0 F)
2000	-7.8 C (18.0 F)
2001	-4.4 C (24.1 F)
2002	-7.2 C (19.0 F)
2003	-5.0 C (23.0 F)
2007	-4.4 C (24.1 F)
2008	-5.0 C (23.0 F)
2009	-5.6 C (21.9 F)

Wettest day (Rx1day)

The wettest day of the year at Presa El Tigre, 1961 to 2009. The record is 95.0 mm (3.7 in) in 2008, marked on the chart; the median year is 41.2 mm (1.6 in).

Wettest day (Rx1day) at Presa El Tigre by year
Year	Wettest day (Rx1day)
1961	26.9 mm (1.1 in)
1962	37.3 mm (1.5 in)
1963	53.8 mm (2.1 in)
1964	70.9 mm (2.8 in)
1965	39.9 mm (1.6 in)
1966	36.8 mm (1.4 in)
1967	39.9 mm (1.6 in)
1968	33.8 mm (1.3 in)
1969	74.9 mm (2.9 in)
1970	61.0 mm (2.4 in)
1971	45.5 mm (1.8 in)
1972	33.3 mm (1.3 in)
1973	49.3 mm (1.9 in)
1974	78.5 mm (3.1 in)
1975	31.5 mm (1.2 in)
1976	48.8 mm (1.9 in)
1977	59.9 mm (2.4 in)
1978	36.3 mm (1.4 in)
1979	28.4 mm (1.1 in)
1980	31.5 mm (1.2 in)
1981	35.8 mm (1.4 in)
1982	30.0 mm (1.2 in)
1983	47.8 mm (1.9 in)
1984	28.4 mm (1.1 in)
1985	43.9 mm (1.7 in)
1986	46.0 mm (1.8 in)
1987	54.4 mm (2.1 in)
1988	39.9 mm (1.6 in)
1989	42.4 mm (1.7 in)
1990	35.8 mm (1.4 in)
1991	31.8 mm (1.3 in)
1992	42.4 mm (1.7 in)
1993	43.9 mm (1.7 in)
1994	31.0 mm (1.2 in)
1995	45.0 mm (1.8 in)
1996	36.3 mm (1.4 in)
1997	45.0 mm (1.8 in)
1998	49.3 mm (1.9 in)
1999	55.9 mm (2.2 in)
2000	50.3 mm (2.0 in)
2001	34.3 mm (1.4 in)
2002	37.8 mm (1.5 in)
2003	39.9 mm (1.6 in)
2007	48.3 mm (1.9 in)
2008	95.0 mm (3.7 in)
2009	26.9 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Presa El Tigre, 1961 to 2009. The record is 232.9 mm (9.2 in) in 2008, marked on the chart; the median year is 87.3 mm (3.4 in).

Wettest five days (Rx5day) at Presa El Tigre by year
Year	Wettest five days (Rx5day)
1961	77.6 mm (3.1 in)
1962	120.9 mm (4.8 in)
1963	106.4 mm (4.2 in)
1964	82.0 mm (3.2 in)
1965	117.3 mm (4.6 in)
1966	97.2 mm (3.8 in)
1967	88.7 mm (3.5 in)
1968	85.8 mm (3.4 in)
1969	143.0 mm (5.6 in)
1970	99.2 mm (3.9 in)
1971	115.2 mm (4.5 in)
1972	79.0 mm (3.1 in)
1973	74.5 mm (2.9 in)
1974	151.4 mm (6.0 in)
1975	74.2 mm (2.9 in)
1976	96.5 mm (3.8 in)
1977	91.2 mm (3.6 in)
1978	77.0 mm (3.0 in)
1979	59.2 mm (2.3 in)
1980	76.9 mm (3.0 in)
1981	63.5 mm (2.5 in)
1982	73.1 mm (2.9 in)
1983	103.4 mm (4.1 in)
1984	69.2 mm (2.7 in)
1985	81.5 mm (3.2 in)
1986	80.6 mm (3.2 in)
1987	129.8 mm (5.1 in)
1988	92.4 mm (3.6 in)
1989	79.2 mm (3.1 in)
1990	90.4 mm (3.6 in)
1991	74.4 mm (2.9 in)
1992	84.9 mm (3.3 in)
1993	89.6 mm (3.5 in)
1994	76.8 mm (3.0 in)
1995	115.9 mm (4.6 in)
1996	83.6 mm (3.3 in)
1997	71.6 mm (2.8 in)
1998	103.6 mm (4.1 in)
1999	121.5 mm (4.8 in)
2000	128.6 mm (5.1 in)
2001	101.4 mm (4.0 in)
2002	74.7 mm (2.9 in)
2003	95.0 mm (3.7 in)
2007	72.2 mm (2.8 in)
2008	232.9 mm (9.2 in)
2009	82.5 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Presa El Tigre, 1961 to 2009. The record is 135 days in 1998, marked on the chart; the median year is 44 days.

Longest dry spell (CDD) at Presa El Tigre by year
Year	Longest dry spell (CDD)
1961	41 days
1962	66 days
1963	73 days
1964	42 days
1965	48 days
1966	48 days
1967	44 days
1968	31 days
1969	54 days
1970	39 days
1971	67 days
1972	41 days
1973	92 days
1974	44 days
1975	79 days
1976	35 days
1977	30 days
1978	35 days
1979	36 days
1980	37 days
1981	31 days
1982	77 days
1983	65 days
1984	54 days
1985	56 days
1986	111 days
1987	51 days
1988	58 days
1989	43 days
1990	40 days
1991	31 days
1992	30 days
1993	54 days
1994	48 days
1995	33 days
1996	42 days
1997	38 days
1998	135 days
1999	44 days
2000	48 days
2001	26 days
2002	32 days
2003	86 days
2007	26 days
2008	103 days
2009	42 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.

Frost Dates and Growing Season

39 years with a frost

Across 39 years with a frost, the median last spring frost at Presa El Tigre falls on 17 April and the median first autumn frost on 24 October, which leaves a median of 182 days between them.

Fitted over all years, the growing season changes by +4.8 days per decade at this station.

Frost dates and growing season at Presa El Tigre
Measure	Median, all years	Earliest period	Recent period (1972 to 2008)	Recent against earliest	Fitted trend
Last spring frost	17 April	n/a	12 April	n/a	-2.5 days per decade
First autumn frost	24 October	n/a	25 October	n/a	+2.4 days per decade
Growing days	182 days	n/a	187 days	n/a	+4.8 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

42 years, 1961 to 2008

A day with at least 41.2 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 101.5 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Presa El Tigre: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	41.2 mm (1.6 in)
5 years	53.6 mm (2.1 in)
10 years	63.1 mm (2.5 in)
25 years	76.9 mm (3.0 in)
50 years	88.5 mm (3.5 in)	Longer than the 42 years of record
100 years	101.5 mm (4.0 in)	Longer than the 42 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, 42 years of values from 1961 to 2008.

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: 95.0 mm (3.7 in) in 2008; 78.5 mm (3.1 in) in 1974; 74.9 mm (2.9 in) in 1969.

Download the Data

Data for Presa El Tigre standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Presa El Tigre 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).