Tiaro Threshold Days by Year

5 fixed thresholds counted per year at Tiaro (ASN00040203): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tiaro Thresholds

Tiaro: days with 10 mm (0.39 in) or more of precipitation in 96 years, most in 1956 with 47.
Tiaro: days with 25 mm (0.98 in) or more of precipitation in 96 years, most in 1956 with 23.
Tiaro: days with 50 mm (1.97 in) or more of precipitation in 87 years, most in 1934 with 10.
Tiaro: days with 100 mm (3.94 in) or more of precipitation in 37 years, most in 1949 with 4.
5 fixed thresholds have at least one qualifying day at Tiaro.

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

96 years with a qualifying day

Days per year at Tiaro with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Tiaro
Year	Days	Decade average
1894	24	32.5
1895	37	32.5
1896	31	32.5
1897	32	32.5
1898	43	32.5
1899	28	32.5
1900	26	28.2
1901	31	28.2
1902	12	28.2
1903	34	28.2
1904	25	28.2
1905	29	28.2
1906	41	28.2
1907	32	28.2
1908	25	28.2
1909	27	28.2
1910	23	26.6
1911	23	26.6
1912	27	26.6
1913	40	26.6
1914	32	26.6
1915	20	26.6
1916	34	26.6
1917	26	26.6
1918	22	26.6
1919	19	26.6
1920	32	32.1
1921	40	32.1
1922	26	32.1
1923	29	32.1
1924	37	32.1
1925	28	32.1
1926	27	32.1
1927	37	32.1
1928	35	32.1
1929	30	32.1
1930	33	30.3
1931	31	30.3
1932	17	30.3
1933	33	30.3
1934	44	30.3
1935	30	30.3
1936	27	30.3
1937	23	30.3
1938	33	30.3
1939	32	30.3
1940	27	25.8
1941	25	25.8
1942	21	25.8
1943	31	25.8
1944	26	25.8
1945	23	25.8
1946	18	25.8
1947	25	25.8
1948	23	25.8
1949	39	25.8
1950	46	31.5
1951	16	31.5
1952	24	31.5
1953	31	31.5
1954	32	31.5
1955	32	31.5
1956	47	31.5
1957	13	31.5
1958	35	31.5
1959	39	31.5
1960	19	28.5
1961	33	28.5
1962	31	28.5
1963	27	28.5
1964	30	28.5
1965	24	28.5
1966	27	28.5
1967	36	28.5
1968	34	28.5
1969	24	28.5
1970	36	33.9
1971	37	33.9
1972	34	33.9
1973	43	33.9
1974	42	33.9
1975	34	33.9
1976	37	33.9
1977	22	33.9
1978	32	33.9
1979	22	33.9
1980	11	21.6
1981	15	21.6
1982	15	21.6
1983	35	21.6
1984	31	21.6
1988	20	21.6
1989	24	21.6
1990	25	23
1991	16	23
1992	28	23

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

First to last qualifying date each year at Tiaro
Year	First date	Last date
1894	1894-01-02	1894-12-09
1895	1895-01-01	1895-12-30
1896	1896-01-28	1896-12-18
1897	1897-01-05	1897-12-30
1898	1898-01-02	1898-12-20
1899	1899-01-11	1899-12-28
1900	1900-01-07	1900-12-23
1901	1901-01-03	1901-12-06
1902	1902-01-08	1902-12-09
1903	1903-01-27	1903-12-12
1904	1904-01-03	1904-12-21
1905	1905-01-15	1905-12-31
1906	1906-01-01	1906-12-24
1907	1907-01-13	1907-12-29
1908	1908-01-04	1908-12-28
1909	1909-01-18	1909-12-26
1910	1910-01-13	1910-12-19
1911	1911-01-11	1911-12-28
1912	1912-01-02	1912-12-15
1913	1913-01-01	1913-12-20
1914	1914-01-11	1914-12-29
1915	1915-01-02	1915-12-16
1916	1916-02-05	1916-12-29
1917	1917-01-15	1917-12-13
1918	1918-01-04	1918-12-18
1919	1919-01-18	1919-10-16
1920	1920-01-02	1920-12-09
1921	1921-01-13	1921-12-30
1922	1922-01-09	1922-12-27
1923	1923-01-07	1923-12-27
1924	1924-01-24	1924-12-31
1925	1925-01-02	1925-12-31
1926	1926-01-05	1926-12-31
1927	1927-01-10	1927-12-29
1928	1928-01-09	1928-12-24
1929	1929-01-12	1929-12-31
1930	1930-01-01	1930-12-17
1931	1931-01-30	1931-12-23
1932	1932-02-04	1932-12-22
1933	1933-01-19	1933-12-29
1934	1934-01-08	1934-12-28
1935	1935-01-05	1935-12-28
1936	1936-01-05	1936-12-30
1937	1937-01-03	1937-12-16
1938	1938-01-17	1938-11-30
1939	1939-01-19	1939-12-27
1940	1940-01-05	1940-12-23
1941	1941-01-16	1941-12-30
1942	1942-01-17	1942-12-29
1943	1943-01-01	1943-12-31
1944	1944-01-07	1944-12-28
1945	1945-01-01	1945-12-14
1946	1946-01-07	1946-12-16
1947	1947-01-10	1947-12-21
1948	1948-01-26	1948-12-26
1949	1949-01-01	1949-12-17
1950	1950-01-06	1950-12-22
1951	1951-01-19	1951-12-20
1952	1952-01-09	1952-11-09
1953	1953-01-23	1953-12-28
1954	1954-01-04	1954-12-17
1955	1955-01-31	1955-12-31
1956	1956-01-01	1956-12-23
1957	1957-01-19	1957-12-17
1958	1958-01-24	1958-12-29
1959	1959-01-03	1959-12-26
1960	1960-01-13	1960-12-16
1961	1961-01-04	1961-12-19
1962	1962-01-04	1962-12-29
1963	1963-01-01	1963-12-16
1964	1964-01-01	1964-12-30
1965	1965-01-06	1965-12-16
1966	1966-01-02	1966-12-31
1967	1967-01-01	1967-12-09
1968	1968-01-07	1968-12-31
1969	1969-02-12	1969-12-31
1970	1970-01-02	1970-12-30
1971	1971-01-19	1971-12-28
1972	1972-01-01	1972-12-29
1973	1973-01-06	1973-12-27
1974	1974-01-04	1974-12-28
1975	1975-01-04	1975-12-23
1976	1976-01-09	1976-12-31
1977	1977-01-04	1977-12-20
1978	1978-01-07	1978-12-30
1979	1979-01-23	1979-12-22
1980	1980-01-08	1980-12-16
1981	1981-02-05	1981-12-25
1982	1982-01-18	1982-12-09
1983	1983-01-01	1983-12-19
1984	1984-01-01	1984-12-20
1988	1988-02-08	1988-12-19
1989	1989-01-03	1989-12-15
1990	1990-02-14	1990-12-28
1991	1991-01-02	1991-12-23
1992	1992-01-01	1992-12-31

Every Fixed Threshold

Fixed thresholds at Tiaro
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	96	47	1956	28
25 mm (0.98 in): Days with 25 mm or more rain	96	23	1956	14
50 mm (1.97 in): Days with 50 mm or more rain	87	10	1934	4
100 mm (3.94 in): Days with 100 mm or more rain	37	4	1949	1
200 mm (7.87 in): Days with 200 mm or more rain	5	1	1901	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Tiaro 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).

Tiaro Threshold Days by Year

Key Facts for Tiaro Thresholds

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

Every Fixed Threshold

Download the Data

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