Butterworth (Tnk) Threshold Days by Year (SF001032300)

4 fixed thresholds counted per year at Butterworth (Tnk) (SF001032300): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Butterworth (Tnk) Thresholds

Butterworth (Tnk): days with 10 mm (0.39 in) or more of precipitation in 104 years, most in 1974 with 37.
Butterworth (Tnk): days with 25 mm (0.98 in) or more of precipitation in 103 years, most in 1974 with 13.
Butterworth (Tnk): days with 50 mm (1.97 in) or more of precipitation in 65 years, most in 1981 with 5.
Butterworth (Tnk): days with 100 mm (3.94 in) or more of precipitation in 9 years, most in 1981 with 2.
4 fixed thresholds have at least one qualifying day at Butterworth (Tnk).

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

104 years with a qualifying day

Days per year at Butterworth (Tnk) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1974.

Days with 10 mm (0.39 in) or more of precipitation per year at Butterworth (Tnk)
Year	Days	Decade average
1890	20	18.1
1891	34	18.1
1892	20	18.1
1893	29	18.1
1894	16	18.1
1895	8	18.1
1896	18	18.1
1897	14	18.1
1898	17	18.1
1899	5	18.1
1900	18	17.2
1901	17	17.2
1902	14	17.2
1903	20	17.2
1904	7	17.2
1905	19	17.2
1906	23	17.2
1907	20	17.2
1908	14	17.2
1909	20	17.2
1910	20	17
1911	24	17
1912	11	17
1913	19	17
1914	15	17
1915	15	17
1916	15	17
1917	23	17
1918	16	17
1919	12	17
1920	16	21.3
1921	23	21.3
1922	26	21.3
1923	27	21.3
1925	25	21.3
1926	20	21.3
1927	13	21.3
1928	20	21.3
1929	22	21.3
1930	23	19.7
1931	20	19.7
1932	21	19.7
1933	16	19.7
1934	26	19.7
1935	19	19.7
1936	13	19.7
1937	14	19.7
1938	26	19.7
1939	19	19.7
1941	16	17.8
1942	28	17.8
1943	27	17.8
1944	18	17.8
1945	13	17.8
1946	19	17.8
1947	15	17.8
1948	15	17.8
1949	9	17.8
1950	19	19.6
1951	18	19.6
1952	13	19.6
1953	19	19.6
1954	21	19.6
1955	20	19.6
1956	25	19.6
1957	12	19.6
1958	21	19.6
1959	28	19.6
1960	14	19.3
1961	23	19.3
1962	25	19.3
1963	28	19.3
1964	21	19.3
1965	21	19.3
1966	14	19.3
1967	22	19.3
1968	10	19.3
1969	15	19.3
1970	14	18.2
1971	23	18.2
1972	7	18.2
1973	10	18.2
1974	37	18.2
1975	17	18.2
1976	17	18.2
1977	13	18.2
1979	26	18.2
1980	20	19.8
1981	25	19.8
1982	14	19.8
1983	4	19.8
1984	13	19.8
1985	33	19.8
1986	28	19.8
1987	15	19.8
1988	27	19.8
1989	19	19.8
1990	15	18.3
1991	20	18.3
1992	9	18.3
1993	21	18.3
1994	24	18.3
1995	20	18.3
1996	19	18.3

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

First to last qualifying date each year at Butterworth (Tnk)
Year	First date	Last date
1890	1890-01-01	1890-11-26
1891	1891-01-03	1891-12-21
1892	1892-01-14	1892-12-11
1893	1893-01-07	1893-12-31
1894	1894-01-17	1894-12-08
1895	1895-03-17	1895-12-27
1896	1896-01-04	1896-12-30
1897	1897-01-10	1897-11-05
1898	1898-01-02	1898-12-26
1899	1899-01-19	1899-12-30
1900	1900-01-07	1900-12-30
1901	1901-01-19	1901-11-19
1902	1902-02-07	1902-12-20
1903	1903-01-05	1903-12-11
1904	1904-01-03	1904-12-14
1905	1905-01-13	1905-12-31
1906	1906-01-05	1906-12-25
1907	1907-01-01	1907-12-27
1908	1908-02-03	1908-12-21
1909	1909-01-04	1909-12-24
1910	1910-01-18	1910-12-21
1911	1911-01-05	1911-12-11
1912	1912-01-13	1912-12-31
1913	1913-01-01	1913-11-19
1914	1914-02-05	1914-12-23
1915	1915-01-03	1915-12-30
1916	1916-01-13	1916-12-27
1917	1917-01-06	1917-12-30
1918	1918-01-03	1918-12-11
1919	1919-01-17	1919-11-16
1920	1920-01-24	1920-12-31
1921	1921-01-05	1921-12-29
1922	1922-01-08	1922-11-28
1923	1923-01-10	1923-12-27
1925	1925-01-13	1925-12-28
1926	1926-01-25	1926-12-27
1927	1927-01-25	1927-12-28
1928	1928-01-04	1928-12-21
1929	1929-01-16	1929-11-10
1930	1930-01-03	1930-12-29
1931	1931-01-12	1931-12-31
1932	1932-01-01	1932-12-25
1933	1933-02-19	1933-12-30
1934	1934-01-01	1934-12-24
1935	1935-01-03	1935-12-18
1936	1936-02-05	1936-12-15
1937	1937-01-06	1937-12-21
1938	1938-01-12	1938-12-31
1939	1939-01-01	1939-12-03
1941	1941-01-19	1941-12-21
1942	1942-01-12	1942-12-21
1943	1943-01-20	1943-12-19
1944	1944-01-01	1944-10-21
1945	1945-01-01	1945-12-04
1946	1946-01-08	1946-11-26
1947	1947-01-07	1947-12-23
1948	1948-01-08	1948-12-20
1949	1949-01-31	1949-12-18
1950	1950-01-04	1950-12-12
1951	1951-01-02	1951-12-11
1952	1952-01-31	1952-12-16
1953	1953-01-12	1953-12-12
1954	1954-01-02	1954-12-15
1955	1955-01-04	1955-11-29
1956	1956-01-17	1956-12-22
1957	1957-01-07	1957-12-30
1958	1958-01-01	1958-12-21
1959	1959-01-01	1959-12-21
1960	1960-01-17	1960-12-29
1961	1961-01-13	1961-12-25
1962	1962-01-01	1962-12-12
1963	1963-01-05	1963-12-12
1964	1964-01-02	1964-12-13
1965	1965-01-05	1965-12-16
1966	1966-01-07	1966-11-04
1967	1967-01-13	1967-11-17
1968	1968-04-01	1968-12-07
1969	1969-01-08	1969-12-07
1970	1970-02-02	1970-12-20
1971	1971-01-09	1971-12-10
1972	1972-02-23	1972-12-15
1973	1973-02-02	1973-12-21
1974	1974-01-08	1974-11-29
1975	1975-01-10	1975-12-31
1976	1976-01-03	1976-12-26
1977	1977-01-12	1977-12-31
1979	1979-01-01	1979-12-25
1980	1980-01-21	1980-12-18
1981	1981-01-07	1981-12-10
1982	1982-01-12	1982-10-26
1983	1983-04-16	1983-10-01
1984	1984-01-07	1984-12-18
1985	1985-01-11	1985-12-24
1986	1986-01-03	1986-12-05
1987	1987-01-11	1987-12-22
1988	1988-01-14	1988-12-30
1989	1989-01-01	1989-11-29
1990	1990-01-09	1990-12-15
1991	1991-01-21	1991-12-31
1992	1992-02-11	1992-11-12
1993	1993-01-30	1993-12-29
1994	1994-01-07	1994-12-26
1995	1995-01-14	1995-12-21
1996	1996-01-04	1996-12-31

Every Fixed Threshold

Fixed thresholds at Butterworth (Tnk)
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	104	37	1974	19
25 mm (0.98 in): Days with 25 mm or more rain	103	13	1974	3
50 mm (1.97 in): Days with 50 mm or more rain	65	5	1981	1
100 mm (3.94 in): Days with 100 mm or more rain	9	2	1981	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1890.

Download the Data

Data for Butterworth (Tnk) 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).

Butterworth (Tnk) Threshold Days by Year (SF001032300)

Key Facts for Butterworth (Tnk) Thresholds

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

Every Fixed Threshold

Download the Data

Related