Alcozauca (Smn) Threshold Days by Year (MXN00012005)

10 fixed thresholds counted per year at Alcozauca (Smn) (MXN00012005): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Alcozauca (Smn) Thresholds

Alcozauca (Smn): days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1958 with 44.
Alcozauca (Smn): days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1984 with 13.
Alcozauca (Smn): days with a maximum temperature at or above 30 C (86 F) in 55 years, most in 1935 with 326.
Alcozauca (Smn): days with a maximum temperature at or above 90 F (32.2 C) in 41 years, most in 1935 with 170.
10 fixed thresholds have at least one qualifying day at Alcozauca (Smn).

Days at or above 30 C (86 F)

55 years with a qualifying day

Days per year at Alcozauca (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 326 in 1935.

Days at or above 30 C (86 F) per year at Alcozauca (Smn)
Year	Days	Decade average
1927	195	210
1928	210	210
1929	225	210
1930	213	231.8
1931	217	231.8
1932	218	231.8
1933	207	231.8
1934	263	231.8
1935	326	231.8
1936	208	231.8
1937	192	231.8
1938	306	231.8
1939	168	231.8
1940	240	123.9
1941	162	123.9
1942	116	123.9
1943	82	123.9
1945	115	123.9
1946	84	123.9
1947	68	123.9
1951	207	157.9
1952	194	157.9
1953	214	157.9
1955	128	157.9
1956	114	157.9
1957	172	157.9
1958	133	157.9
1959	101	157.9
1960	140	88.2
1961	116	88.2
1962	155	88.2
1963	129	88.2
1964	49	88.2
1965	50	88.2
1966	72	88.2
1967	64	88.2
1968	56	88.2
1969	51	88.2
1970	30	14.9
1971	10	14.9
1972	21	14.9
1973	28	14.9
1974	17	14.9
1975	10	14.9
1976	3	14.9
1977	4	14.9
1978	14	14.9
1979	12	14.9
1980	94	177.4
1981	59	177.4
1982	155	177.4
1983	229	177.4
1984	203	177.4
1985	238	177.4
1986	264	177.4

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

First to last qualifying date each year at Alcozauca (Smn)
Year	First date	Last date
1927	1927-01-01	1927-12-30
1928	1928-01-16	1928-12-21
1929	1929-01-10	1929-12-19
1930	1930-01-02	1930-12-31
1931	1931-01-05	1931-12-30
1932	1932-01-05	1932-12-31
1933	1933-01-13	1933-12-09
1934	1934-01-19	1934-12-31
1935	1935-01-01	1935-12-31
1936	1936-01-01	1936-12-31
1937	1937-01-01	1937-12-28
1938	1938-01-03	1938-12-27
1939	1939-01-11	1939-12-26
1940	1940-01-12	1940-12-31
1941	1941-01-01	1941-12-20
1942	1942-01-31	1942-12-24
1943	1943-01-04	1943-07-27
1945	1945-02-22	1945-12-25
1946	1946-02-11	1946-06-07
1947	1947-02-19	1947-07-10
1951	1951-02-18	1951-12-31
1952	1952-01-01	1952-11-27
1953	1953-01-07	1953-11-06
1955	1955-01-02	1955-07-27
1956	1956-01-27	1956-11-16
1957	1957-01-09	1957-11-24
1958	1958-02-06	1958-11-27
1959	1959-01-17	1959-12-18
1960	1960-01-02	1960-10-08
1961	1961-01-25	1961-10-30
1962	1962-01-15	1962-11-26
1963	1963-01-11	1963-06-16
1964	1964-03-17	1964-05-30
1965	1965-03-11	1965-06-15
1966	1966-02-24	1966-07-01
1967	1967-03-13	1967-08-05
1968	1968-03-29	1968-06-16
1969	1969-03-08	1969-06-22
1970	1970-03-22	1970-05-28
1971	1971-03-29	1971-06-09
1972	1972-04-04	1972-05-24
1973	1973-03-07	1973-05-30
1974	1974-03-20	1974-05-16
1975	1975-03-23	1975-04-20
1976	1976-03-21	1976-05-27
1977	1977-03-15	1977-03-31
1978	1978-03-18	1978-05-14
1979	1979-03-24	1979-10-14
1980	1980-02-22	1980-08-23
1981	1981-02-27	1981-05-25
1982	1982-04-02	1982-12-31
1983	1983-01-05	1983-12-29
1984	1984-01-04	1984-12-29
1985	1985-01-01	1985-12-31
1986	1986-01-01	1986-12-29

Every Fixed Threshold

Fixed thresholds at Alcozauca (Smn)
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	55	326	1935	264
35 C (95 F): Days	35	134	1929	16
40 C (104 F): Days	6	42	1929	2
90 F (32.2 C): Days	41	170	1935	94
100 F (37.8 C): Days	13	92	1929	1
0 C (32 F): Frost days (min	8	5	1933	1
20 C (68 F): Tropical nights (min	16	23	1969	1
10 mm (0.39 in): Days with 10 mm or more rain	56	44	1958	29
25 mm (0.98 in): Days with 25 mm or more rain	56	13	1984	9
50 mm (1.97 in): Days with 50 mm or more rain	21	4	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 1927.

Download the Data

Data for Alcozauca (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).

Alcozauca (Smn) Threshold Days by Year (MXN00012005)

Key Facts for Alcozauca (Smn) Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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