Zacapu (Smn) Threshold Days by Year (MXN00016171)

7 fixed thresholds counted per year at Zacapu (Smn) (MXN00016171): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Zacapu (Smn) Thresholds

Zacapu (Smn): days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1967 with 49.
Zacapu (Smn): days with 25 mm (0.98 in) or more of precipitation in 45 years, most in 1966 with 14.
Zacapu (Smn): days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1951 with 153.
Zacapu (Smn): nights with a minimum temperature at or below 0 C (32 F) in 40 years, most in 1945 with 25.
7 fixed thresholds have at least one qualifying day at Zacapu (Smn).

Days at or above 30 C (86 F)

41 years with a qualifying day

Days per year at Zacapu (Smn) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 153 in 1951.

Days at or above 30 C (86 F) per year at Zacapu (Smn)
Year	Days	Decade average
1923	1	1.8
1925	1	1.8
1927	4	1.8
1928	1	1.8
1930	5	21
1931	1	21
1932	12	21
1933	71	21
1934	16	21
1936	40	21
1937	12	21
1938	13	21
1939	19	21
1940	17	57.9
1941	20	57.9
1942	24	57.9
1945	72	57.9
1946	76	57.9
1947	50	57.9
1948	108	57.9
1949	96	57.9
1950	15	65.8
1951	153	65.8
1952	96	65.8
1953	60	65.8
1954	48	65.8
1955	80	65.8
1956	56	65.8
1957	66	65.8
1958	61	65.8
1959	23	65.8
1960	62	57
1961	58	57
1962	59	57
1963	65	57
1964	69	57
1965	62	57
1966	43	57
1967	46	57
1968	49	57
2000	55	55

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

First to last qualifying date each year at Zacapu (Smn)
Year	First date	Last date
1923	1923-05-01	1923-05-01
1925	1925-05-31	1925-05-31
1927	1927-05-06	1927-05-30
1928	1928-05-21	1928-05-21
1930	1930-05-14	1930-05-18
1931	1931-06-08	1931-06-08
1932	1932-05-27	1932-06-30
1933	1933-03-09	1933-06-10
1934	1934-04-19	1934-06-24
1936	1936-03-15	1936-06-21
1937	1937-04-23	1937-06-09
1938	1938-03-30	1938-06-10
1939	1939-03-01	1939-06-13
1940	1940-03-01	1940-06-11
1941	1941-04-01	1941-06-03
1942	1942-03-18	1942-05-31
1945	1945-02-23	1945-07-27
1946	1946-03-02	1946-09-18
1947	1947-01-29	1947-06-14
1948	1948-03-09	1948-12-29
1949	1949-01-03	1949-06-29
1950	1950-03-16	1950-12-21
1951	1951-01-05	1951-12-30
1952	1952-01-08	1952-07-09
1953	1953-02-15	1953-09-19
1954	1954-03-03	1954-06-14
1955	1955-02-27	1955-06-21
1956	1956-02-19	1956-05-11
1957	1957-02-21	1957-07-08
1958	1958-02-27	1958-06-21
1959	1959-03-11	1959-06-02
1960	1960-03-09	1960-06-22
1961	1961-03-07	1961-06-09
1962	1962-02-22	1962-06-17
1963	1963-03-07	1963-08-27
1964	1964-02-14	1964-06-12
1965	1965-03-10	1965-06-16
1966	1966-02-28	1966-06-08
1967	1967-03-12	1967-06-08
1968	1968-03-29	1968-06-17
2000	2000-03-21	2000-10-04

Every Fixed Threshold

Fixed thresholds at Zacapu (Smn)
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	41	153	1951	55
35 C (95 F): Days	12	14	1946	1
90 F (32.2 C): Days	30	37	1946	12
0 C (32 F): Frost days (min	40	25	1945	4
10 mm (0.39 in): Days with 10 mm or more rain	46	49	1967	36
25 mm (0.98 in): Days with 25 mm or more rain	45	14	1966	10
50 mm (1.97 in): Days with 50 mm or more rain	13	2	1923	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 Zacapu (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).

Zacapu (Smn) Threshold Days by Year (MXN00016171)

Key Facts for Zacapu (Smn) Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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