Irapuato Threshold Days by Year (MXN00011028)

11 fixed thresholds counted per year at Irapuato (MXN00011028): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Irapuato Thresholds

Irapuato: days with 10 mm (0.39 in) or more of precipitation in 90 years, most in 1941 with 41.
Irapuato: days with 25 mm (0.98 in) or more of precipitation in 89 years, most in 1941 with 14.
Irapuato: days with a maximum temperature at or above 30 C (86 F) in 85 years, most in 1957 with 227.
Irapuato: days with a maximum temperature at or above 90 F (32.2 C) in 84 years, most in 1933 with 93.
11 fixed thresholds have at least one qualifying day at Irapuato.

Days at or above 30 C (86 F)

85 years with a qualifying day

Days per year at Irapuato with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 227 in 1957.

Days at or above 30 C (86 F) per year at Irapuato
Year	Days	Decade average
1923	3	77.5
1927	29	77.5
1928	152	77.5
1929	126	77.5
1930	140	115.3
1931	116	115.3
1932	177	115.3
1933	127	115.3
1934	86	115.3
1935	81	115.3
1936	101	115.3
1937	111	115.3
1938	98	115.3
1939	116	115.3
1940	143	155.4
1941	109	155.4
1942	136	155.4
1943	135	155.4
1944	142	155.4
1945	191	155.4
1946	179	155.4
1947	178	155.4
1948	166	155.4
1949	175	155.4
1950	176	171.1
1951	187	171.1
1952	161	171.1
1953	187	171.1
1954	174	171.1
1955	151	171.1
1956	142	171.1
1957	227	171.1
1959	135	171.1
1960	204	157.9
1961	149	157.9
1962	165	157.9
1963	122	157.9
1964	164	157.9
1965	179	157.9
1966	170	157.9
1967	137	157.9
1968	115	157.9
1969	174	157.9
1970	106	89.3
1971	76	89.3
1972	117	89.3
1973	88	89.3
1974	76	89.3
1975	78	89.3
1976	68	89.3
1977	83	89.3
1978	90	89.3
1979	111	89.3
1980	114	96.9
1981	83	96.9
1982	141	96.9
1983	93	96.9
1984	68	96.9
1985	58	96.9
1986	86	96.9
1987	62	96.9
1988	118	96.9
1989	146	96.9
1991	126	156.6
1992	114	156.6
1993	116	156.6
1994	176	156.6
1995	182	156.6
1996	160	156.6
1997	170	156.6
1998	189	156.6
1999	176	156.6
2000	182	148.4
2001	144	148.4
2002	144	148.4
2003	146	148.4
2004	127	148.4
2005	181	148.4
2006	170	148.4
2007	160	148.4
2008	126	148.4
2009	104	148.4
2010	96	121.3
2011	98	121.3
2012	170	121.3

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

First to last qualifying date each year at Irapuato
Year	First date	Last date
1923	1923-05-01	1923-05-03
1927	1927-04-06	1927-07-13
1928	1928-02-19	1928-10-23
1929	1929-02-12	1929-11-13
1930	1930-02-19	1930-10-05
1931	1931-03-15	1931-10-30
1932	1932-01-28	1932-10-05
1933	1933-01-26	1933-07-26
1934	1934-02-23	1934-11-19
1935	1935-02-25	1935-06-21
1936	1936-02-03	1936-11-03
1937	1937-01-17	1937-08-11
1938	1938-03-01	1938-11-13
1939	1939-01-12	1939-09-30
1940	1940-02-28	1940-11-12
1941	1941-02-12	1941-12-30
1942	1942-01-07	1942-12-25
1943	1943-01-23	1943-11-11
1944	1944-02-08	1944-11-15
1945	1945-01-25	1945-11-21
1946	1946-01-29	1946-12-18
1947	1947-01-23	1947-12-11
1948	1948-01-02	1948-12-29
1949	1949-01-06	1949-12-22
1950	1950-01-01	1950-12-21
1951	1951-01-07	1951-12-30
1952	1952-01-02	1952-12-29
1953	1953-01-08	1953-12-26
1954	1954-01-02	1954-12-30
1955	1955-01-01	1955-11-23
1956	1956-01-27	1956-12-08
1957	1957-01-02	1957-12-23
1959	1959-01-16	1959-12-11
1960	1960-01-03	1960-12-19
1961	1961-01-26	1961-12-11
1962	1962-01-22	1962-11-26
1963	1963-01-20	1963-11-06
1964	1964-01-20	1964-12-29
1965	1965-01-08	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-24	1967-12-01
1968	1968-01-03	1968-11-19
1969	1969-01-13	1969-12-27
1970	1970-02-25	1970-08-19
1971	1971-03-01	1971-08-02
1972	1972-03-03	1972-10-06
1973	1973-02-25	1973-10-14
1974	1974-03-03	1974-07-29
1975	1975-03-07	1975-10-15
1976	1976-03-11	1976-09-13
1977	1977-03-06	1977-10-29
1978	1978-03-14	1978-08-29
1979	1979-03-14	1979-10-22
1980	1980-03-08	1980-10-19
1981	1981-03-30	1981-10-04
1982	1982-03-10	1982-10-06
1983	1983-03-24	1983-09-06
1984	1984-03-29	1984-10-22
1985	1985-03-15	1985-10-18
1986	1986-03-30	1986-11-21
1987	1987-02-04	1987-12-09
1988	1988-02-03	1988-12-17
1989	1989-02-27	1989-11-16
1991	1991-02-13	1991-10-29
1992	1992-03-02	1992-11-12
1993	1993-03-15	1993-12-21
1994	1994-02-04	1994-12-16
1995	1995-01-08	1995-12-07
1996	1996-01-29	1996-12-12
1997	1997-02-23	1997-12-10
1998	1998-02-09	1998-12-29
1999	1999-01-26	1999-11-20
2000	2000-01-01	2000-12-16
2001	2001-02-12	2001-12-02
2002	2002-01-19	2002-12-02
2003	2003-02-04	2003-11-23
2004	2004-02-09	2004-11-30
2005	2005-01-27	2005-12-15
2006	2006-01-02	2006-12-19
2007	2007-01-08	2007-12-31
2008	2008-01-23	2008-12-21
2009	2009-01-23	2009-10-16
2010	2010-03-24	2010-11-03
2011	2011-03-22	2011-12-05
2012	2012-02-28	2012-12-24

Every Fixed Threshold

Fixed thresholds at Irapuato
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	85	227	1957	170
35 C (95 F): Days	72	45	1998	2
40 C (104 F): Days	1	1	1971	1
90 F (32.2 C): Days	84	93	1933	47
100 F (37.8 C): Days	11	5	1998	3
0 C (32 F): Frost days (min	32	9	1975	1
20 C (68 F): Tropical nights (min	25	28	1927	1
10 mm (0.39 in): Days with 10 mm or more rain	90	41	1941	20
25 mm (0.98 in): Days with 25 mm or more rain	89	14	1941	7
50 mm (1.97 in): Days with 50 mm or more rain	48	3	1953	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1965	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

Data for Irapuato 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).

Irapuato Threshold Days by Year (MXN00011028)

Key Facts for Irapuato Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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