Zamora (Obs) Threshold Days by Year (MXN00016143)

10 fixed thresholds counted per year at Zamora (Obs) (MXN00016143): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Zamora (Obs) Thresholds

Zamora (Obs): days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 1960 with 304.
Zamora (Obs): days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1927 with 41.
Zamora (Obs): days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 1960 with 204.
Zamora (Obs): days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1959 with 10.
10 fixed thresholds have at least one qualifying day at Zamora (Obs).

Days at or above 30 C (86 F)

37 years with a qualifying day

Days per year at Zamora (Obs) with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 304 in 1960.

Days at or above 30 C (86 F) per year at Zamora (Obs)
Year	Days	Decade average
1923	8	59
1924	6	59
1925	95	59
1926	52	59
1927	55	59
1928	99	59
1929	98	59
1930	89	88.3
1931	44	88.3
1932	107	88.3
1933	112	88.3
1934	69	88.3
1935	79	88.3
1936	92	88.3
1937	93	88.3
1938	82	88.3
1939	116	88.3
1940	96	161
1941	109	161
1942	128	161
1943	88	161
1944	179	161
1945	203	161
1946	212	161
1947	174	161
1948	215	161
1949	206	161
1950	138	209.9
1951	143	209.9
1953	226	209.9
1954	217	209.9
1955	191	209.9
1956	213	209.9
1957	260	209.9
1958	246	209.9
1959	255	209.9
1960	304	304

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

First to last qualifying date each year at Zamora (Obs)
Year	First date	Last date
1923	1923-02-04	1923-05-01
1924	1924-04-15	1924-05-03
1925	1925-02-17	1925-06-06
1926	1926-02-15	1926-10-22
1927	1927-03-04	1927-06-11
1928	1928-01-26	1928-10-22
1929	1929-02-21	1929-11-08
1930	1930-03-04	1930-09-26
1931	1931-04-02	1931-10-24
1932	1932-02-10	1932-12-15
1933	1933-02-12	1933-12-04
1934	1934-02-23	1934-11-10
1935	1935-03-06	1935-11-06
1936	1936-02-26	1936-09-09
1937	1937-01-06	1937-10-18
1938	1938-02-06	1938-11-15
1939	1939-03-01	1939-09-29
1940	1940-02-25	1940-10-29
1941	1941-02-17	1941-10-15
1942	1942-02-06	1942-11-18
1943	1943-02-25	1943-10-23
1944	1944-04-06	1944-11-15
1945	1945-02-08	1945-11-20
1946	1946-02-07	1946-11-15
1947	1947-02-23	1947-12-11
1948	1948-03-15	1948-12-29
1949	1949-01-07	1949-12-16
1950	1950-02-04	1950-11-04
1951	1951-02-20	1951-12-22
1953	1953-02-08	1953-12-26
1954	1954-01-04	1954-12-09
1955	1955-02-13	1955-12-04
1956	1956-01-26	1956-12-09
1957	1957-01-01	1957-12-28
1958	1958-01-12	1958-12-24
1959	1959-01-12	1959-12-25
1960	1960-01-01	1960-12-30

Every Fixed Threshold

Fixed thresholds at Zamora (Obs)
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	37	304	1960	304
35 C (95 F): Days	28	78	1960	78
40 C (104 F): Days	2	1	1953	1
90 F (32.2 C): Days	35	204	1960	204
100 F (37.8 C): Days	11	14	1960	14
0 C (32 F): Frost days (min	4	2	1953	1
20 C (68 F): Tropical nights (min	5	5	1928	1
10 mm (0.39 in): Days with 10 mm or more rain	37	41	1927	19
25 mm (0.98 in): Days with 25 mm or more rain	31	10	1959	5
50 mm (1.97 in): Days with 50 mm or more rain	8	2	1942	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 Zamora (Obs) 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).

Zamora (Obs) Threshold Days by Year (MXN00016143)

Key Facts for Zamora (Obs) Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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