Princesa Isabel Threshold Days by Year (BR038534990)

4 fixed thresholds counted per year at Princesa Isabel (BR038534990): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Princesa Isabel Thresholds

Princesa Isabel: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1941 with 48.
Princesa Isabel: days with 25 mm (0.98 in) or more of precipitation in 71 years, most in 1940 with 28.
Princesa Isabel: days with 50 mm (1.97 in) or more of precipitation in 64 years, most in 1940 with 11.
Princesa Isabel: days with 100 mm (3.94 in) or more of precipitation in 11 years, most in 1969 with 2.
4 fixed thresholds have at least one qualifying day at Princesa Isabel.

Days with 10 mm (0.39 in) or more of precipitation

72 years with a qualifying day

Days per year at Princesa Isabel with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1941.

Days with 10 mm (0.39 in) or more of precipitation per year at Princesa Isabel
Year	Days	Decade average
1911	10	21.3
1912	19	21.3
1913	28	21.3
1914	33	21.3
1915	14	21.3
1916	32	21.3
1917	27	21.3
1918	26	21.3
1919	3	21.3
1920	22	27.3
1921	41	27.3
1922	30	27.3
1923	16	27.3
1924	41	27.3
1925	25	27.3
1926	27	27.3
1927	15	27.3
1928	19	27.3
1929	37	27.3
1930	15	24.1
1932	22	24.1
1933	23	24.1
1934	28	24.1
1935	36	24.1
1936	15	24.1
1937	34	24.1
1938	21	24.1
1939	23	24.1
1940	42	30.3
1941	48	30.3
1942	27	30.3
1943	26	30.3
1944	25	30.3
1945	34	30.3
1946	21	30.3
1947	37	30.3
1948	22	30.3
1949	21	30.3
1950	27	20.6
1951	17	20.6
1952	27	20.6
1953	18	20.6
1954	21	20.6
1955	21	20.6
1956	23	20.6
1957	20	20.6
1958	13	20.6
1959	19	20.6
1960	28	30.5
1961	31	30.5
1962	20	30.5
1963	38	30.5
1964	33	30.5
1965	28	30.5
1966	25	30.5
1967	45	30.5
1968	32	30.5
1969	25	30.5
1970	15	27.3
1971	26	27.3
1972	26	27.3
1973	37	27.3
1974	38	27.3
1975	30	27.3
1976	20	27.3
1977	27	27.3
1978	31	27.3
1979	23	27.3
1980	23	19.5
1981	21	19.5
1982	18	19.5
1983	16	19.5

For each year, a bar from the first to the last day at Princesa Isabel meeting 10 mm (0.39 in).

First to last qualifying date each year at Princesa Isabel
Year	First date	Last date
1911	1911-03-07	1911-12-28
1912	1912-01-12	1912-11-04
1913	1913-01-14	1913-12-09
1914	1914-01-14	1914-10-06
1915	1915-01-25	1915-12-17
1916	1916-01-05	1916-12-28
1917	1917-01-09	1917-12-05
1918	1918-01-07	1918-12-31
1919	1919-03-20	1919-07-10
1920	1920-02-26	1920-12-31
1921	1921-01-03	1921-12-17
1922	1922-01-24	1922-11-28
1923	1923-01-29	1923-11-30
1924	1924-01-23	1924-06-17
1925	1925-01-10	1925-12-28
1926	1926-01-01	1926-12-14
1927	1927-01-13	1927-06-20
1928	1928-01-06	1928-12-01
1929	1929-01-05	1929-12-07
1930	1930-01-21	1930-10-28
1932	1932-01-14	1932-09-07
1933	1933-01-19	1933-12-27
1934	1934-01-10	1934-12-19
1935	1935-01-02	1935-12-25
1936	1936-01-04	1936-12-23
1937	1937-01-29	1937-12-24
1938	1938-01-06	1938-12-18
1939	1939-02-12	1939-12-22
1940	1940-01-02	1940-12-27
1941	1941-01-09	1941-12-26
1942	1942-01-11	1942-12-14
1943	1943-01-25	1943-12-23
1944	1944-02-03	1944-12-31
1945	1945-01-10	1945-12-08
1946	1946-01-16	1946-12-21
1947	1947-01-13	1947-12-31
1948	1948-02-08	1948-07-19
1949	1949-02-09	1949-11-27
1950	1950-01-13	1950-12-25
1951	1951-02-06	1951-06-16
1952	1952-01-13	1952-12-17
1953	1953-01-02	1953-11-27
1954	1954-01-21	1954-11-27
1955	1955-01-19	1955-11-29
1956	1956-02-03	1956-11-26
1957	1957-01-07	1957-12-22
1958	1958-01-07	1958-12-26
1959	1959-01-10	1959-11-23
1960	1960-01-30	1960-12-27
1961	1961-01-16	1961-12-26
1962	1962-01-12	1962-12-16
1963	1963-01-12	1963-12-30
1964	1964-01-05	1964-12-06
1965	1965-01-14	1965-12-25
1966	1966-01-30	1966-12-26
1967	1967-01-27	1967-12-29
1968	1968-01-07	1968-12-22
1969	1969-01-18	1969-12-18
1970	1970-01-12	1970-12-18
1971	1971-01-20	1971-09-18
1972	1972-01-18	1972-12-29
1973	1973-01-03	1973-12-29
1974	1974-01-20	1974-12-21
1975	1975-01-22	1975-10-21
1976	1976-01-19	1976-12-29
1977	1977-01-29	1977-07-29
1978	1978-01-09	1978-12-16
1979	1979-01-14	1979-11-17
1980	1980-01-04	1980-12-24
1981	1981-01-28	1981-12-22
1982	1982-01-06	1982-12-13
1983	1983-01-24	1983-12-01

Every Fixed Threshold

Fixed thresholds at Princesa Isabel
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	72	48	1941	16
25 mm (0.98 in): Days with 25 mm or more rain	71	28	1940	6
50 mm (1.97 in): Days with 50 mm or more rain	64	11	1940	2
100 mm (3.94 in): Days with 100 mm or more rain	11	2	1969	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.

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Data for Princesa Isabel 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).

Princesa Isabel Threshold Days by Year (BR038534990)

Key Facts for Princesa Isabel Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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