El Rosario Threshold Days by Year (MXN00003015)

13 fixed thresholds counted per year at El Rosario (MXN00003015): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for El Rosario Thresholds

El Rosario: days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 2006 with 213.
El Rosario: days with a maximum temperature at or above 90 F (32.2 C) in 44 years, most in 2006 with 169.
El Rosario: days with a maximum temperature at or above 35 C (95 F) in 43 years, most in 2006 with 162.
El Rosario: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 2012 with 13.
13 fixed thresholds have at least one qualifying day at El Rosario.

Days at or above 30 C (86 F)

44 years with a qualifying day

Days per year at El Rosario with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 213 in 2006.

Days at or above 30 C (86 F) per year at El Rosario
Year	Days	Decade average
1962	143	139.4
1963	159	139.4
1964	106	139.4
1965	151	139.4
1966	138	139.4
1967	139	139.4
1968	140	139.4
1970	130	139
1971	114	139
1972	152	139
1973	102	139
1974	118	139
1975	123	139
1976	130	139
1977	170	139
1978	196	139
1979	155	139
1980	191	161.5
1981	201	161.5
1982	169	161.5
1983	138	161.5
1984	131	161.5
1985	147	161.5
1986	189	161.5
1987	161	161.5
1988	140	161.5
1989	148	161.5
1991	153	150
1992	170	150
1993	166	150
1994	194	150
1996	100	150
1998	117	150
2001	141	156.9
2002	152	156.9
2003	124	156.9
2004	146	156.9
2005	123	156.9
2006	213	156.9
2007	162	156.9
2008	194	156.9
2010	107	130
2011	111	130
2012	172	130

For each year, a bar from the first to the last day at El Rosario meeting 30 C (86 F).

First to last qualifying date each year at El Rosario
Year	First date	Last date
1962	1962-04-07	1962-12-09
1963	1963-03-24	1963-12-11
1964	1964-04-01	1964-11-25
1965	1965-03-03	1965-12-04
1966	1966-03-12	1966-12-17
1967	1967-03-02	1967-11-29
1968	1968-02-07	1968-12-07
1970	1970-01-24	1970-12-14
1971	1971-02-23	1971-12-26
1972	1972-01-20	1972-11-13
1973	1973-05-01	1973-12-12
1974	1974-01-01	1974-12-04
1975	1975-02-02	1975-12-13
1976	1976-01-14	1976-11-23
1977	1977-02-18	1977-12-20
1978	1978-01-03	1978-11-25
1979	1979-03-08	1979-12-14
1980	1980-02-03	1980-12-30
1981	1981-01-02	1981-12-31
1982	1982-01-01	1982-12-18
1983	1983-02-13	1983-12-25
1984	1984-03-09	1984-12-18
1985	1985-02-10	1985-12-30
1986	1986-01-19	1986-12-04
1987	1987-01-28	1987-12-23
1988	1988-01-07	1988-12-16
1989	1989-02-12	1989-12-09
1991	1991-01-03	1991-11-08
1992	1992-04-06	1992-12-28
1993	1993-03-16	1993-12-31
1994	1994-02-04	1994-12-19
1996	1996-04-19	1996-10-31
1998	1998-04-28	1998-09-30
2001	2001-06-05	2001-10-29
2002	2002-04-01	2002-10-07
2003	2003-05-10	2003-10-05
2004	2004-05-03	2004-09-30
2005	2005-06-01	2005-10-08
2006	2006-03-02	2006-11-30
2007	2007-05-02	2007-11-27
2008	2008-05-23	2008-12-21
2010	2010-02-28	2010-11-29
2011	2011-04-03	2011-12-31
2012	2012-06-01	2012-11-30

Every Fixed Threshold

Fixed thresholds at El Rosario
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	44	213	2006	172
35 C (95 F): Days	43	162	2006	137
40 C (104 F): Days	12	22	2004	12
45 C (113 F): Days	1	1	2011	1
90 F (32.2 C): Days	44	169	2006	152
100 F (37.8 C): Days	31	108	2006	89
110 F (43.3 C): Days	1	1	2011	1
20 C (68 F): Tropical nights (min	31	112	1992	69
25 C (77 F): Days with min	14	8	1963	1
10 mm (0.39 in): Days with 10 mm or more rain	37	13	2012	13
25 mm (0.98 in): Days with 25 mm or more rain	30	5	2012	5
50 mm (1.97 in): Days with 50 mm or more rain	18	2	1983	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1980	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.

Download the Data

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). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

El Rosario Threshold Days by Year (MXN00003015)

Key Facts for El Rosario Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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