El Rosario Weather Records (MXN00003015)

Record envelope, standing records and threshold days for El Rosario (MXN00003015), Mexico, with 52 years of record.

Key Facts for El Rosario

El Rosario (MXN00003015) is a weather station in Mexico at 23.85 latitude and -110.65 longitude, 45 m (147 ft) above sea level.
The station reports from 1961 to 2012, 52 years of record.
1,464 records set at El Rosario still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
El Rosario set a daily record precipitation of 4.8 mm (0.19 in) on 29 December 2012.

About the Station

Location: Mexico, 23.85 latitude, -110.65 longitude.
Elevation: 45 m (147 ft).
Period of record: 1961 to 2012, 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 El Rosario. 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 El Rosario, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	36.7 C (98.1 F)	0.6 C (33.1 F)	n/a	n/a
Feb	33.9 C (93.0 F)	0.6 C (33.1 F)	n/a	n/a
Mar	38.3 C (100.9 F)	1.7 C (35.1 F)	n/a	n/a
Apr	38.9 C (102.0 F)	1.7 C (35.1 F)	n/a	n/a
May	40.0 C (104.0 F)	2.8 C (37.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	2.8 C (37.0 F)	n/a	n/a
Jul	40.6 C (105.1 F)	8.9 C (48.0 F)	n/a	n/a
Aug	42.2 C (108.0 F)	8.9 C (48.0 F)	n/a	n/a
Sep	47.8 C (118.0 F)	7.8 C (46.0 F)	n/a	n/a
Oct	39.4 C (102.9 F)	3.9 C (39.0 F)	n/a	n/a
Nov	38.9 C (102.0 F)	1.7 C (35.1 F)	n/a	n/a
Dec	33.9 C (93.0 F)	1.7 C (35.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at El Rosario still stand. 1973 holds the most, with 81.

Standing records at El Rosario by the year they were set
Year set	Standing records
1961	4
1962	66
1963	68
1964	50
1965	26
1966	23
1967	25
1968	35
1969	9
1970	37
1971	44
1972	35
1973	81
1974	39
1975	81
1976	48
1977	19
1978	23
1979	11
1980	29
1981	46
1982	21
1983	22
1984	20
1985	18
1986	25
1987	10
1988	16
1989	17
1990	30
1991	33
1992	23
1993	12
1994	8
1995	36
1996	19
1997	44
1998	48
2000	9
2001	14
2002	29
2003	16
2004	17
2005	10
2006	52
2007	15
2008	24
2009	16
2010	22
2011	22
2012	17

All-Time Record Progression

3 new records

3 all-time records were set at El Rosario between 12 September 1996 and 23 September 2011. Each dot is a new record.

When El Rosario set new all-time records
Date	Kind	Detail
1996-09-12	Record daily precipitation	Record daily precipitation 120.9 mm (4.8 in)
2001-09-27	Record daily precipitation	Record daily precipitation 140.0 mm (5.5 in)
2011-09-23	Record high maximum temperature	Record high maximum temperature 47.8 C (118.0 F)

Wettest Day of Each Month

Sep: 140.0 mm (5.5 in)

The wettest day on record for each calendar month at El Rosario. The most was 140.0 mm (5.5 in) on 27 September 2001.

Record daily precipitation for each month at El Rosario
Month	Record daily precipitation (mm)	Date
Jan	43.9 mm (1.7 in)	2 January 1972
Feb	40.9 mm (1.6 in)	9 February 1968
Mar	15.0 mm (0.6 in)	2 March 1983
Apr	0.0 mm (0.00 in)	1 April 1962
May	19.8 mm (0.8 in)	18 May 1979
Jun	110.0 mm (4.3 in)	27 June 1980
Jul	34.8 mm (1.4 in)	29 July 1979
Aug	99.8 mm (3.9 in)	13 August 1983
Sep	140.0 mm (5.5 in)	27 September 2001
Oct	69.9 mm (2.8 in)	16 October 2012
Nov	79.8 mm (3.1 in)	7 November 1974
Dec	53.8 mm (2.1 in)	22 December 1994

Period of Record Coverage

1961 to 2012

52 years of record at El Rosario, 1961 to 2012. 8 years have data for under 90 percent of days and are left out of rankings: 1961, 1969, 1990, 1995, 1997, 1999, 2000, 2009.

Days with data per year at El Rosario
Year	Days with data	Share of year	Complete
1961	54	15%	No
1962	365	100%	Yes
1963	335	92%	Yes
1964	366	100%	Yes
1965	362	99%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	267	73%	No
1970	365	100%	Yes
1971	334	92%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	334	92%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	335	92%	Yes
1983	352	96%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	334	92%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	273	75%	No
1991	365	100%	Yes
1992	366	100%	Yes
1993	334	92%	Yes
1994	334	92%	Yes
1995	242	66%	No
1996	366	100%	Yes
1997	273	75%	No
1998	334	92%	Yes
1999	147	40%	No
2000	296	81%	No
2001	362	99%	Yes
2002	331	91%	Yes
2003	333	91%	Yes
2004	335	92%	Yes
2005	335	92%	Yes
2006	364	100%	Yes
2007	363	99%	Yes
2008	366	100%	Yes
2009	212	58%	No
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes

Latest Records

Latest records at El Rosario
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 December 2012	El Rosario, MX	daily rain	4.8 mm (0.19 in)	4.8 mm (0.19 in)	51 years	20 of 100 (Routine)
22 November 2012	El Rosario, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	4 years	1 of 100 (Routine)
21 November 2012	El Rosario, MX	daily high max	33.3 C (91.9 F)	0.5 C (0.9 F)	4 years	7 of 100 (Routine)
19 November 2012	El Rosario, MX	daily high max	35.0 C (95.0 F)	2.2 C (4.0 F)	26 years	19 of 100 (Routine)
18 November 2012	El Rosario, MX	daily high max (Tie)	33.9 C (93.0 F)	tie	31 years	3 of 100 (Routine)
1 November 2012	El Rosario, MX	daily high max	37.8 C (100.0 F)	2.8 C (5.0 F)	44 years	27 of 100 (Routine)
27 October 2012	El Rosario, MX	daily high max	38.3 C (100.9 F)	2.7 C (4.9 F)	25 years	20 of 100 (Routine)
26 October 2012	El Rosario, MX	daily high max	38.9 C (102.0 F)	2.2 C (4.0 F)	25 years	18 of 100 (Routine)
20 October 2012	El Rosario, MX	daily high max (Tie)	38.9 C (102.0 F)	tie	5 years	1 of 100 (Routine)
19 October 2012	El Rosario, MX	daily high max	38.3 C (100.9 F)	2.7 C (4.9 F)	34 years	23 of 100 (Routine)
16 October 2012	El Rosario, MX	monthly rain	69.9 mm (2.8 in)	6.1 mm (0.24 in)	39 years	32 of 100 (Routine)
15 October 2012	El Rosario, MX	daily rain	19.8 mm (0.8 in)	19.8 mm (0.8 in)	50 years	20 of 100 (Routine)
14 October 2012	El Rosario, MX	monthly high max (Tie)	39.4 C (102.9 F)	tie	49 years	7 of 100 (Routine)
8 October 2012	El Rosario, MX	daily high max	38.9 C (102.0 F)	1.1 C (2.0 F)	11 years	11 of 100 (Routine)
30 September 2012	El Rosario, MX	daily low min (Tie)	12.8 C (55.0 F)	tie	15 years	2 of 100 (Routine)
29 September 2012	El Rosario, MX	daily low min (Tie)	11.7 C (53.1 F)	tie	36 years	3 of 100 (Routine)
26 September 2012	El Rosario, MX	daily rain	30.0 mm (1.2 in)	16.0 mm (0.6 in)	19 years	15 of 100 (Routine)
23 September 2012	El Rosario, MX	daily rain	19.8 mm (0.8 in)	16.0 mm (0.6 in)	37 years	20 of 100 (Routine)
20 September 2012	El Rosario, MX	daily rain	17.8 mm (0.7 in)	2.8 mm (0.11 in)	50 years	20 of 100 (Routine)
17 September 2012	El Rosario, MX	daily rain	19.8 mm (0.8 in)	17.0 mm (0.7 in)	27 years	19 of 100 (Routine)

Climate Trend

31 complete years, 1962 to 2012

One stripe for each of 31 complete years at El Rosario, 1962 to 2012. Blue stripes are years cooler than the station's own mean of 20.4 C (68.7 F); red stripes are warmer. The coolest year was 1973, at 18.0 C (64.3 F), and the warmest was 2006, at 22.0 C (71.7 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at El Rosario as warming stripes, 1962 to 2012
Year	Annual mean temperature	Difference from the station mean
1962	20.5 C	+0.13 C
1964	20.1 C	-0.27 C
1965	20.8 C	+0.40 C
1966	20.8 C	+0.38 C
1967	20.8 C	+0.46 C
1968	20.2 C	-0.21 C
1970	18.7 C	-1.65 C
1972	20.0 C	-0.36 C
1973	18.0 C	-2.42 C
1974	18.7 C	-1.71 C
1975	18.0 C	-2.35 C
1976	18.6 C	-1.73 C
1977	19.2 C	-1.18 C
1978	21.2 C	+0.87 C
1980	21.8 C	+1.38 C
1981	21.8 C	+1.43 C
1984	20.6 C	+0.27 C
1985	20.7 C	+0.36 C
1986	21.8 C	+1.46 C
1988	20.7 C	+0.30 C
1989	20.7 C	+0.37 C
1991	21.0 C	+0.59 C
1992	21.9 C	+1.49 C
1996	20.0 C	-0.41 C
2001	20.5 C	+0.11 C
2006	22.0 C	+1.66 C
2007	21.2 C	+0.84 C
2008	21.3 C	+0.93 C
2010	19.6 C	-0.77 C
2011	19.6 C	-0.78 C
2012	20.8 C	+0.45 C

The fitted trend in annual mean temperature here over 1962 to 2012 is 0.2 C (-0.1 to 0.5) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.4 F (-0.1 to 0.8) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at El Rosario
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (-0.1 to 0.5) per decade	0.4 F (-0.1 to 0.8) per decade	1962 to 2012	31	Not clearly different from zero
Mean daily maximum	0.5 C (0.2 to 0.7) per decade	0.8 F (0.4 to 1.3) per decade	1962 to 2012	31	Rise
Mean daily minimum	-0.1 C (-0.5 to 0.4) per decade	-0.1 F (-0.9 to 0.7) per decade	1962 to 2012	31	Not clearly different from zero

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 2012

Yearly extremes at El Rosario: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	47.8 C (118.0 F)	2011	38.3 C (100.9 F)	52
Coldest night (TNn)	0.6 C (33.1 F)	1962	5.0 C (41.0 F)	52
Wettest day (Rx1day)	140.0 mm (5.5 in)	2001	30.5 mm (1.2 in)	52
Wettest five days (Rx5day)	205.8 mm (8.1 in)	1983	35.2 mm (1.4 in)	52
Longest dry spell (CDD)	275 days	1972	187 days	52

Hottest day (TXx)

The hottest day of the year at El Rosario, 1961 to 2012. The record is 47.8 C (118.0 F) in 2011, marked on the chart; the median year is 38.3 C (100.9 F).

Hottest day (TXx) at El Rosario by year
Year	Hottest day (TXx)
1961	30.0 C (86.0 F)
1962	39.4 C (102.9 F)
1963	37.8 C (100.0 F)
1964	36.7 C (98.1 F)
1965	37.8 C (100.0 F)
1966	37.8 C (100.0 F)
1967	37.8 C (100.0 F)
1968	38.9 C (102.0 F)
1969	38.9 C (102.0 F)
1970	35.0 C (95.0 F)
1971	36.7 C (98.1 F)
1972	38.3 C (100.9 F)
1973	38.9 C (102.0 F)
1974	35.6 C (96.1 F)
1975	38.9 C (102.0 F)
1976	35.6 C (96.1 F)
1977	36.7 C (98.1 F)
1978	36.7 C (98.1 F)
1979	37.8 C (100.0 F)
1980	35.6 C (96.1 F)
1981	37.8 C (100.0 F)
1982	38.9 C (102.0 F)
1983	37.8 C (100.0 F)
1984	36.7 C (98.1 F)
1985	37.8 C (100.0 F)
1986	38.9 C (102.0 F)
1987	38.9 C (102.0 F)
1988	38.9 C (102.0 F)
1989	37.8 C (100.0 F)
1990	42.2 C (108.0 F)
1991	36.7 C (98.1 F)
1992	38.9 C (102.0 F)
1993	36.7 C (98.1 F)
1994	36.7 C (98.1 F)
1995	37.8 C (100.0 F)
1996	32.8 C (91.0 F)
1997	40.0 C (104.0 F)
1998	41.7 C (107.1 F)
1999	27.8 C (82.0 F)
2000	38.9 C (102.0 F)
2001	40.0 C (104.0 F)
2002	40.0 C (104.0 F)
2003	40.0 C (104.0 F)
2004	40.6 C (105.1 F)
2005	40.0 C (104.0 F)
2006	40.0 C (104.0 F)
2007	40.0 C (104.0 F)
2008	40.0 C (104.0 F)
2009	38.3 C (100.9 F)
2010	40.6 C (105.1 F)
2011	47.8 C (118.0 F)
2012	40.0 C (104.0 F)

Coldest night (TNn)

The coldest night of the year at El Rosario, 1961 to 2012. The record is 0.6 C (33.1 F) in 1962, marked on the chart; the median year is 5.0 C (41.0 F).

Coldest night (TNn) at El Rosario by year
Year	Coldest night (TNn)
1961	2.8 C (37.0 F)
1962	0.6 C (33.1 F)
1963	3.9 C (39.0 F)
1964	2.2 C (36.0 F)
1965	1.7 C (35.1 F)
1966	4.4 C (39.9 F)
1967	5.0 C (41.0 F)
1968	5.0 C (41.0 F)
1969	5.0 C (41.0 F)
1970	1.7 C (35.1 F)
1971	1.7 C (35.1 F)
1972	3.9 C (39.0 F)
1973	1.7 C (35.1 F)
1974	1.7 C (35.1 F)
1975	1.7 C (35.1 F)
1976	1.7 C (35.1 F)
1977	1.7 C (35.1 F)
1978	2.8 C (37.0 F)
1979	5.0 C (41.0 F)
1980	5.6 C (42.1 F)
1981	3.9 C (39.0 F)
1982	5.0 C (41.0 F)
1983	5.6 C (42.1 F)
1984	5.0 C (41.0 F)
1985	1.7 C (35.1 F)
1986	5.0 C (41.0 F)
1987	3.9 C (39.0 F)
1988	5.0 C (41.0 F)
1989	3.9 C (39.0 F)
1990	2.8 C (37.0 F)
1991	3.9 C (39.0 F)
1992	5.6 C (42.1 F)
1993	6.1 C (43.0 F)
1994	5.6 C (42.1 F)
1995	6.7 C (44.1 F)
1996	6.7 C (44.1 F)
1997	1.7 C (35.1 F)
1998	6.7 C (44.1 F)
1999	7.8 C (46.0 F)
2000	6.7 C (44.1 F)
2001	6.7 C (44.1 F)
2002	6.7 C (44.1 F)
2003	6.7 C (44.1 F)
2004	7.8 C (46.0 F)
2005	8.9 C (48.0 F)
2006	5.6 C (42.1 F)
2007	8.9 C (48.0 F)
2008	6.7 C (44.1 F)
2009	8.9 C (48.0 F)
2010	6.7 C (44.1 F)
2011	3.9 C (39.0 F)
2012	8.9 C (48.0 F)

Wettest day (Rx1day)

The wettest day of the year at El Rosario, 1961 to 2012. The record is 140.0 mm (5.5 in) in 2001, marked on the chart; the median year is 30.5 mm (1.2 in).

Wettest day (Rx1day) at El Rosario by year
Year	Wettest day (Rx1day)
1961	2.8 mm (0.11 in)
1962	63.0 mm (2.5 in)
1963	7.9 mm (0.31 in)
1964	25.9 mm (1.0 in)
1965	27.9 mm (1.1 in)
1966	30.0 mm (1.2 in)
1967	41.9 mm (1.6 in)
1968	55.9 mm (2.2 in)
1969	6.9 mm (0.27 in)
1970	9.9 mm (0.39 in)
1971	5.8 mm (0.23 in)
1972	63.8 mm (2.5 in)
1973	75.9 mm (3.0 in)
1974	79.8 mm (3.1 in)
1975	50.8 mm (2.0 in)
1976	68.8 mm (2.7 in)
1977	39.9 mm (1.6 in)
1978	40.9 mm (1.6 in)
1979	89.9 mm (3.5 in)
1980	110.0 mm (4.3 in)
1981	31.0 mm (1.2 in)
1982	19.8 mm (0.8 in)
1983	99.8 mm (3.9 in)
1984	24.9 mm (1.0 in)
1985	19.8 mm (0.8 in)
1986	16.8 mm (0.7 in)
1987	7.9 mm (0.31 in)
1988	7.9 mm (0.31 in)
1989	45.0 mm (1.8 in)
1990	45.0 mm (1.8 in)
1991	27.4 mm (1.1 in)
1992	27.9 mm (1.1 in)
1993	65.8 mm (2.6 in)
1994	53.8 mm (2.1 in)
1995	53.8 mm (2.1 in)
1996	120.9 mm (4.8 in)
1997	30.0 mm (1.2 in)
1998	64.8 mm (2.6 in)
1999	0.0 mm (0.00 in)
2000	35.8 mm (1.4 in)
2001	140.0 mm (5.5 in)
2002	0.0 mm (0.00 in)
2003	59.9 mm (2.4 in)
2004	58.9 mm (2.3 in)
2005	7.4 mm (0.29 in)
2006	13.0 mm (0.5 in)
2007	15.0 mm (0.6 in)
2008	26.9 mm (1.1 in)
2009	0.0 mm (0.00 in)
2010	21.8 mm (0.9 in)
2011	9.9 mm (0.39 in)
2012	69.9 mm (2.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at El Rosario, 1961 to 2012. The record is 205.8 mm (8.1 in) in 1983, marked on the chart; the median year is 35.2 mm (1.4 in).

Wettest five days (Rx5day) at El Rosario by year
Year	Wettest five days (Rx5day)
1961	2.8 mm (0.11 in)
1962	78.0 mm (3.1 in)
1963	7.9 mm (0.31 in)
1964	25.9 mm (1.0 in)
1965	39.6 mm (1.6 in)
1966	30.0 mm (1.2 in)
1967	85.5 mm (3.4 in)
1968	57.7 mm (2.3 in)
1969	6.9 mm (0.27 in)
1970	9.9 mm (0.39 in)
1971	12.4 mm (0.5 in)
1972	63.8 mm (2.5 in)
1973	77.7 mm (3.1 in)
1974	99.6 mm (3.9 in)
1975	54.6 mm (2.1 in)
1976	87.6 mm (3.4 in)
1977	39.9 mm (1.6 in)
1978	40.9 mm (1.6 in)
1979	117.8 mm (4.6 in)
1980	110.0 mm (4.3 in)
1981	34.6 mm (1.4 in)
1982	26.7 mm (1.1 in)
1983	205.8 mm (8.1 in)
1984	27.7 mm (1.1 in)
1985	28.7 mm (1.1 in)
1986	20.6 mm (0.8 in)
1987	12.7 mm (0.5 in)
1988	7.9 mm (0.31 in)
1989	52.9 mm (2.1 in)
1990	45.0 mm (1.8 in)
1991	34.3 mm (1.4 in)
1992	29.7 mm (1.2 in)
1993	85.6 mm (3.4 in)
1994	53.8 mm (2.1 in)
1995	72.6 mm (2.9 in)
1996	120.9 mm (4.8 in)
1997	30.0 mm (1.2 in)
1998	64.8 mm (2.6 in)
1999	0.0 mm (0.00 in)
2000	35.8 mm (1.4 in)
2001	140.0 mm (5.5 in)
2002	0.0 mm (0.00 in)
2003	76.7 mm (3.0 in)
2004	58.9 mm (2.3 in)
2005	14.3 mm (0.6 in)
2006	13.0 mm (0.5 in)
2007	15.0 mm (0.6 in)
2008	26.9 mm (1.1 in)
2009	0.0 mm (0.00 in)
2010	21.8 mm (0.9 in)
2011	9.9 mm (0.39 in)
2012	89.7 mm (3.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at El Rosario, 1961 to 2012. The record is 275 days in 1972, marked on the chart; the median year is 187 days.

Longest dry spell (CDD) at El Rosario by year
Year	Longest dry spell (CDD)
1961	30 days
1962	218 days
1963	90 days
1964	135 days
1965	160 days
1966	158 days
1967	212 days
1968	202 days
1969	82 days
1970	200 days
1971	187 days
1972	275 days
1973	165 days
1974	119 days
1975	205 days
1976	232 days
1977	225 days
1978	163 days
1979	108 days
1980	187 days
1981	178 days
1982	151 days
1983	132 days
1984	161 days
1985	248 days
1986	232 days
1987	120 days
1988	228 days
1989	204 days
1990	181 days
1991	203 days
1992	166 days
1993	96 days
1994	249 days
1995	120 days
1996	224 days
1997	205 days
1998	126 days
1999	151 days
2000	194 days
2001	179 days
2002	214 days
2003	183 days
2004	185 days
2005	202 days
2006	203 days
2007	249 days
2008	198 days
2009	181 days
2010	261 days
2011	238 days
2012	221 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

45 years, 1962 to 2012

A day with at least 37.2 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 161.1 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at El Rosario: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	37.2 mm (1.5 in)
5 years	67.0 mm (2.6 in)
10 years	88.1 mm (3.5 in)
25 years	116.2 mm (4.6 in)
50 years	138.2 mm (5.4 in)	Longer than the 45 years of record
100 years	161.1 mm (6.3 in)	Longer than the 45 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, 45 years of values from 1962 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: 140.0 mm (5.5 in) in 2001; 120.9 mm (4.8 in) in 1996; 110.0 mm (4.3 in) in 1980.

Download the Data

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