Mayaguez City Threshold Days by Year (RQC00666073)

11 fixed thresholds counted per year at Mayaguez City (RQC00666073): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mayaguez City Thresholds

Mayaguez City: nights with a minimum temperature at or above 20 C (68 F) in 79 years, most in 2012 with 343.
Mayaguez City: days with a maximum temperature at or above 30 C (86 F) in 78 years, most in 1931 with 364.
Mayaguez City: days with a maximum temperature at or above 90 F (32.2 C) in 78 years, most in 1924 with 294.
Mayaguez City: days with 10 mm (0.39 in) or more of precipitation in 78 years, most in 1934 with 84.
11 fixed thresholds have at least one qualifying day at Mayaguez City.

Days at or above 30 C (86 F)

78 years with a qualifying day

Days per year at Mayaguez City with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 364 in 1931.

Days at or above 30 C (86 F) per year at Mayaguez City
Year	Days	Decade average
1900	317	294.2
1901	305	294.2
1902	308	294.2
1903	330	294.2
1904	289	294.2
1905	313	294.2
1907	287	294.2
1908	225	294.2
1909	274	294.2
1910	276	300.7
1914	329	300.7
1915	334	300.7
1916	304	300.7
1917	273	300.7
1918	288	300.7
1920	320	330.7
1922	301	330.7
1923	318	330.7
1924	347	330.7
1926	350	330.7
1927	351	330.7
1929	328	330.7
1930	331	308.9
1931	364	308.9
1933	357	308.9
1934	333	308.9
1935	318	308.9
1936	313	308.9
1937	257	308.9
1938	267	308.9
1939	240	308.9
1940	302	296.3
1941	320	296.3
1942	309	296.3
1943	284	296.3
1944	299	296.3
1945	251	296.3
1946	279	296.3
1947	308	296.3
1948	315	296.3
1950	253	265.7
1952	292	265.7
1953	283	265.7
1954	258	265.7
1955	284	265.7
1956	252	265.7
1957	250	265.7
1958	264	265.7
1959	255	265.7
1960	250	283.5
1961	233	283.5
1963	294	283.5
1966	298	283.5
1967	329	283.5
1969	297	283.5
1970	319	291.3
1971	264	291.3
1972	312	291.3
1973	314	291.3
1974	269	291.3
1975	270	291.3
1981	314	320.1
1982	331	320.1
1983	325	320.1
1984	315	320.1
1985	315	320.1
1986	321	320.1
1987	320	320.1
1990	314	276.9
1992	316	276.9
1993	312	276.9
1994	275	276.9
1995	230	276.9
1996	205	276.9
1999	286	276.9
2001	272	260
2007	248	260
2012	257	257

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

First to last qualifying date each year at Mayaguez City
Year	First date	Last date
1900	1900-01-01	1900-12-31
1901	1901-01-01	1901-11-30
1902	1902-01-07	1902-12-31
1903	1903-01-01	1903-12-30
1904	1904-01-01	1904-12-31
1905	1905-01-03	1905-12-31
1907	1907-01-04	1907-12-31
1908	1908-01-02	1908-12-31
1909	1909-01-01	1909-12-30
1910	1910-01-07	1910-12-31
1914	1914-01-01	1914-12-31
1915	1915-01-01	1915-12-31
1916	1916-01-01	1916-12-31
1917	1917-01-02	1917-12-17
1918	1918-01-05	1918-12-31
1920	1920-01-01	1920-12-31
1922	1922-01-01	1922-12-31
1923	1923-01-08	1923-12-31
1924	1924-01-01	1924-12-31
1926	1926-01-01	1926-12-31
1927	1927-01-01	1927-12-31
1929	1929-01-01	1929-12-31
1930	1930-01-01	1930-12-31
1931	1931-01-01	1931-12-31
1933	1933-01-01	1933-12-31
1934	1934-01-01	1934-12-31
1935	1935-01-02	1935-12-31
1936	1936-01-02	1936-12-20
1937	1937-01-06	1937-12-27
1938	1938-01-17	1938-12-30
1939	1939-01-04	1939-12-31
1940	1940-01-02	1940-12-31
1941	1941-01-01	1941-12-31
1942	1942-01-02	1942-12-31
1943	1943-01-01	1943-12-28
1944	1944-01-01	1944-12-31
1945	1945-01-02	1945-12-31
1946	1946-01-01	1946-12-30
1947	1947-01-02	1947-12-30
1948	1948-01-01	1948-12-29
1950	1950-01-18	1950-12-24
1952	1952-01-06	1952-12-30
1953	1953-01-01	1953-12-28
1954	1954-01-06	1954-12-27
1955	1955-01-19	1955-12-24
1956	1956-02-06	1956-12-31
1957	1957-01-28	1957-12-30
1958	1958-01-03	1958-12-20
1959	1959-01-05	1959-12-26
1960	1960-01-01	1960-12-19
1961	1961-01-19	1961-12-28
1963	1963-01-06	1963-12-30
1966	1966-01-02	1966-12-31
1967	1967-01-01	1967-12-31
1969	1969-02-02	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-30
1973	1973-01-02	1973-12-31
1974	1974-01-01	1974-12-30
1975	1975-01-11	1975-12-24
1981	1981-01-03	1981-12-18
1982	1982-01-12	1982-12-22
1983	1983-01-01	1983-12-22
1984	1984-01-09	1984-12-30
1985	1985-01-08	1985-12-20
1986	1986-01-08	1986-12-19
1987	1987-01-12	1987-12-29
1990	1990-01-01	1990-12-29
1992	1992-01-02	1992-12-31
1993	1993-01-01	1993-12-29
1994	1994-01-01	1994-12-30
1995	1995-01-02	1995-12-31
1996	1996-01-03	1996-12-14
1999	1999-01-01	1999-11-28
2001	2001-01-01	2001-12-31
2007	2007-01-02	2007-12-28
2012	2012-01-01	2012-12-29

Every Fixed Threshold

Fixed thresholds at Mayaguez City
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	78	364	1931	257
35 C (95 F): Days	57	140	1924	1
90 F (32.2 C): Days	78	294	1924	101
100 F (37.8 C): Days	1	6	1996	6
20 C (68 F): Tropical nights (min	79	343	2012	343
25 C (77 F): Days with min	31	219	2012	219
10 mm (0.39 in): Days with 10 mm or more rain	78	84	1934	11
25 mm (0.98 in): Days with 25 mm or more rain	78	46	1922	3
50 mm (1.97 in): Days with 50 mm or more rain	76	12	1981	1
100 mm (3.94 in): Days with 100 mm or more rain	15	3	1902	1
200 mm (7.87 in): Days with 200 mm or more rain	2	0	n/a	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1900.

Download the Data

Data for Mayaguez City 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).

Mayaguez City Threshold Days by Year (RQC00666073)

Key Facts for Mayaguez City Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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