Tres Hermanos Threshold Days by Year (MXN00026102)

15 fixed thresholds counted per year at Tres Hermanos (MXN00026102): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tres Hermanos Thresholds

Tres Hermanos: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 1990 with 29.
Tres Hermanos: days with 25 mm (0.98 in) or more of precipitation in 68 years, most in 1958 with 14.
Tres Hermanos: days with a maximum temperature at or above 30 C (86 F) in 67 years, most in 1965 with 327.
Tres Hermanos: days with a maximum temperature at or above 35 C (95 F) in 67 years, most in 1965 with 248.
15 fixed thresholds have at least one qualifying day at Tres Hermanos.

Days at or above 30 C (86 F)

67 years with a qualifying day

Days per year at Tres Hermanos with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 327 in 1965.

Days at or above 30 C (86 F) per year at Tres Hermanos
Year	Days	Decade average
1943	292	288.4
1944	264	288.4
1945	306	288.4
1946	299	288.4
1947	286	288.4
1948	290	288.4
1949	282	288.4
1950	285	287.9
1951	284	287.9
1952	264	287.9
1953	301	287.9
1954	315	287.9
1955	290	287.9
1956	291	287.9
1957	292	287.9
1958	264	287.9
1959	293	287.9
1960	283	286.7
1961	266	286.7
1962	279	286.7
1963	273	286.7
1964	276	286.7
1965	327	286.7
1966	296	286.7
1967	292	286.7
1968	287	286.7
1969	288	286.7
1970	293	271.8
1971	274	271.8
1972	267	271.8
1973	265	271.8
1974	270	271.8
1975	281	271.8
1976	276	271.8
1977	286	271.8
1978	256	271.8
1979	250	271.8
1980	281	278.1
1981	283	278.1
1982	287	278.1
1983	269	278.1
1984	255	278.1
1985	302	278.1
1986	275	278.1
1987	280	278.1
1989	271	278.1
1990	259	241.4
1991	223	241.4
1993	261	241.4
1994	268	241.4
1995	232	241.4
1996	213	241.4
1997	249	241.4
1998	234	241.4
1999	234	241.4
2000	254	295
2001	298	295
2002	285	295
2003	299	295
2005	295	295
2006	319	295
2007	289	295
2008	306	295
2009	310	295
2010	303	302.7
2011	301	302.7
2012	304	302.7

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

First to last qualifying date each year at Tres Hermanos
Year	First date	Last date
1943	1943-01-01	1943-12-30
1944	1944-01-17	1944-12-23
1945	1945-01-04	1945-12-31
1946	1946-01-01	1946-12-28
1947	1947-01-21	1947-12-24
1948	1948-01-04	1948-12-27
1949	1949-02-10	1949-12-31
1950	1950-01-01	1950-12-25
1951	1951-01-07	1951-12-30
1952	1952-01-12	1952-12-14
1953	1953-01-04	1953-12-31
1954	1954-01-03	1954-12-22
1955	1955-01-28	1955-12-31
1956	1956-01-01	1956-12-30
1957	1957-01-02	1957-12-29
1958	1958-01-01	1958-12-16
1959	1959-01-08	1959-12-23
1960	1960-01-27	1960-12-27
1961	1961-01-09	1961-12-23
1962	1962-01-01	1962-12-15
1963	1963-01-23	1963-12-29
1964	1964-01-02	1964-12-31
1965	1965-01-02	1965-12-30
1966	1966-01-07	1966-12-19
1967	1967-01-15	1967-12-24
1968	1968-01-12	1968-12-31
1969	1969-01-03	1969-12-26
1970	1970-01-24	1970-12-27
1971	1971-01-15	1971-12-27
1972	1972-01-15	1972-12-26
1973	1973-01-14	1973-12-28
1974	1974-01-14	1974-12-22
1975	1975-01-05	1975-12-12
1976	1976-01-07	1976-12-03
1977	1977-01-17	1977-12-27
1978	1978-01-08	1978-12-18
1979	1979-02-09	1979-11-29
1980	1980-01-05	1980-12-31
1981	1981-01-01	1981-12-21
1982	1982-01-09	1982-12-20
1983	1983-01-05	1983-12-31
1984	1984-01-01	1984-12-31
1985	1985-01-01	1985-11-24
1986	1986-01-01	1986-12-15
1987	1987-01-03	1987-12-28
1989	1989-01-19	1989-12-24
1990	1990-01-09	1990-12-14
1991	1991-01-03	1991-12-14
1993	1993-01-16	1993-12-30
1994	1994-01-01	1994-12-21
1995	1995-01-10	1995-12-13
1996	1996-01-07	1996-12-28
1997	1997-01-02	1997-12-18
1998	1998-01-16	1998-12-16
1999	1999-02-06	1999-12-17
2000	2000-01-11	2000-12-30
2001	2001-01-03	2001-12-31
2002	2002-01-02	2002-12-28
2003	2003-01-01	2003-12-26
2005	2005-01-08	2005-12-30
2006	2006-01-01	2006-12-27
2007	2007-01-07	2007-12-31
2008	2008-01-02	2008-12-31
2009	2009-01-01	2009-12-31
2010	2010-01-01	2010-12-25
2011	2011-01-07	2011-12-31
2012	2012-01-01	2012-11-30

Every Fixed Threshold

Fixed thresholds at Tres Hermanos
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	67	327	1965	304
35 C (95 F): Days	67	248	1965	218
40 C (104 F): Days	67	116	2002	90
45 C (113 F): Days	27	7	1965	1
90 F (32.2 C): Days	67	298	1965	255
100 F (37.8 C): Days	67	164	2000	146
110 F (43.3 C): Days	49	18	2002	4
120 F (48.9 C): Days	1	2	2010	2
0 C (32 F): Frost days (min	20	4	1979	3
20 C (68 F): Tropical nights (min	67	174	1965	119
25 C (77 F): Days with min	67	106	1973	27
10 mm (0.39 in): Days with 10 mm or more rain	68	29	1990	14
25 mm (0.98 in): Days with 25 mm or more rain	68	14	1958	8
50 mm (1.97 in): Days with 50 mm or more rain	54	6	2010	3
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1958	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

Data for Tres Hermanos 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).

Tres Hermanos Threshold Days by Year (MXN00026102)

Key Facts for Tres Hermanos Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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