Celaya (Smn) Threshold Days by Year (MXN00011009)

10 fixed thresholds counted per year at Celaya (Smn) (MXN00011009): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Celaya (Smn) Thresholds

Celaya (Smn): days with a maximum temperature at or above 30 C (86 F) in 87 years, most in 1945 with 237.
Celaya (Smn): days with a maximum temperature at or above 90 F (32.2 C) in 87 years, most in 1935 with 197.
Celaya (Smn): days with 10 mm (0.39 in) or more of precipitation in 84 years, most in 2006 with 33.
Celaya (Smn): days with 25 mm (0.98 in) or more of precipitation in 84 years, most in 2001 with 13.
10 fixed thresholds have at least one qualifying day at Celaya (Smn).

Days at or above 30 C (86 F)

87 years with a qualifying day

Days per year at Celaya (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 237 in 1945.

Days at or above 30 C (86 F) per year at Celaya (Smn)
Year	Days	Decade average
1922	57	156.6
1923	146	156.6
1924	179	156.6
1925	176	156.6
1926	173	156.6
1927	162	156.6
1928	168	156.6
1929	192	156.6
1930	223	187
1931	151	187
1932	122	187
1933	137	187
1934	231	187
1935	232	187
1936	171	187
1937	224	187
1938	211	187
1939	168	187
1940	226	199.9
1941	198	199.9
1942	217	199.9
1943	205	199.9
1944	196	199.9
1945	237	199.9
1948	140	199.9
1949	180	199.9
1951	81	93.3
1952	66	93.3
1953	100	93.3
1954	81	93.3
1955	105	93.3
1956	81	93.3
1957	131	93.3
1958	113	93.3
1959	82	93.3
1960	142	59.9
1961	106	59.9
1962	55	59.9
1963	19	59.9
1964	37	59.9
1965	42	59.9
1966	22	59.9
1967	16	59.9
1968	36	59.9
1969	124	59.9
1970	64	66.9
1971	62	66.9
1972	32	66.9
1973	28	66.9
1974	61	66.9
1975	67	66.9
1976	78	66.9
1977	83	66.9
1978	83	66.9
1979	111	66.9
1980	101	90.8
1981	79	90.8
1982	126	90.8
1983	64	90.8
1984	47	90.8
1985	48	90.8
1986	84	90.8
1988	131	90.8
1989	137	90.8
1990	200	116.6
1991	171	116.6
1992	120	116.6
1993	107	116.6
1994	130	116.6
1995	35	116.6
1996	76	116.6
1997	93	116.6
1998	130	116.6
1999	104	116.6
2000	112	121.9
2001	195	121.9
2002	145	121.9
2003	141	121.9
2004	87	121.9
2005	115	121.9
2006	120	121.9
2007	111	121.9
2008	90	121.9
2009	103	121.9
2010	122	138.7
2011	186	138.7
2012	108	138.7

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

First to last qualifying date each year at Celaya (Smn)
Year	First date	Last date
1922	1922-04-06	1922-09-12
1923	1923-03-04	1923-10-09
1924	1924-03-06	1924-10-10
1925	1925-03-04	1925-10-28
1926	1926-03-08	1926-10-20
1927	1927-03-07	1927-10-02
1928	1928-03-04	1928-10-02
1929	1929-03-09	1929-11-12
1930	1930-02-21	1930-10-19
1931	1931-02-25	1931-10-24
1932	1932-03-21	1932-09-30
1933	1933-03-13	1933-10-16
1934	1934-02-22	1934-11-26
1935	1935-01-07	1935-10-05
1936	1936-03-11	1936-11-11
1937	1937-01-09	1937-12-05
1938	1938-01-10	1938-12-22
1939	1939-01-09	1939-12-26
1940	1940-01-03	1940-12-28
1941	1941-01-01	1941-10-31
1942	1942-02-20	1942-12-23
1943	1943-02-01	1943-12-06
1944	1944-01-30	1944-12-29
1945	1945-01-11	1945-12-30
1948	1948-03-17	1948-10-07
1949	1949-03-04	1949-10-20
1951	1951-02-26	1951-10-31
1952	1952-02-25	1952-09-10
1953	1953-02-27	1953-08-17
1954	1954-03-14	1954-09-21
1955	1955-02-27	1955-11-26
1956	1956-02-18	1956-10-25
1957	1957-03-21	1957-10-16
1958	1958-03-03	1958-10-22
1959	1959-03-10	1959-11-05
1960	1960-03-03	1960-10-25
1961	1961-02-28	1961-11-16
1962	1962-02-11	1962-09-28
1963	1963-03-08	1963-09-13
1964	1964-04-07	1964-08-20
1965	1965-03-19	1965-06-23
1966	1966-04-29	1966-07-28
1967	1967-04-22	1967-06-08
1968	1968-05-07	1968-09-20
1969	1969-01-30	1969-11-26
1970	1970-03-14	1970-06-17
1971	1971-03-02	1971-07-11
1972	1972-04-06	1972-07-10
1973	1973-04-21	1973-12-08
1974	1974-01-28	1974-08-17
1975	1975-03-15	1975-10-26
1976	1976-03-11	1976-09-13
1977	1977-03-14	1977-10-28
1978	1978-03-14	1978-09-14
1979	1979-03-13	1979-12-27
1980	1980-03-09	1980-10-19
1981	1981-04-01	1981-11-01
1982	1982-03-10	1982-10-06
1983	1983-03-25	1983-07-02
1984	1984-03-14	1984-06-29
1985	1985-04-06	1985-11-21
1986	1986-02-19	1986-11-21
1988	1988-02-03	1988-12-16
1989	1989-01-02	1989-11-24
1990	1990-01-05	1990-11-29
1991	1991-01-01	1991-12-09
1992	1992-02-17	1992-12-29
1993	1993-01-13	1993-12-22
1994	1994-02-06	1994-12-16
1995	1995-04-28	1995-06-07
1996	1996-01-30	1996-12-12
1997	1997-02-26	1997-12-28
1998	1998-01-10	1998-12-21
1999	1999-01-09	1999-10-08
2000	2000-01-12	2000-12-26
2001	2001-01-05	2001-12-31
2002	2002-01-04	2002-12-05
2003	2003-01-04	2003-12-26
2004	2004-02-09	2004-12-04
2005	2005-01-28	2005-12-15
2006	2006-01-03	2006-12-31
2007	2007-01-07	2007-12-31
2008	2008-01-22	2008-11-10
2009	2009-01-27	2009-10-07
2010	2010-03-07	2010-12-22
2011	2011-02-14	2011-12-26
2012	2012-01-17	2012-12-15

Every Fixed Threshold

Fixed thresholds at Celaya (Smn)
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	87	237	1945	108
35 C (95 F): Days	63	136	1935	16
40 C (104 F): Days	3	10	1930	1
90 F (32.2 C): Days	87	197	1935	19
100 F (37.8 C): Days	21	32	1930	1
0 C (32 F): Frost days (min	36	32	1966	5
20 C (68 F): Tropical nights (min	17	27	1948	2
10 mm (0.39 in): Days with 10 mm or more rain	84	33	2006	18
25 mm (0.98 in): Days with 25 mm or more rain	84	13	2001	7
50 mm (1.97 in): Days with 50 mm or more rain	48	7	2001	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1922.

Download the Data

Data for Celaya (Smn) 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).

Celaya (Smn) Threshold Days by Year (MXN00011009)

Key Facts for Celaya (Smn) Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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