Knysna (Tnk) Threshold Days by Year (SF000140630)

5 fixed thresholds counted per year at Knysna (Tnk) (SF000140630): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Knysna (Tnk) Thresholds

Knysna (Tnk): days with 10 mm (0.39 in) or more of precipitation in 88 years, most in 1952 with 34.
Knysna (Tnk): days with 25 mm (0.98 in) or more of precipitation in 87 years, most in 1952 with 15.
Knysna (Tnk): days with 50 mm (1.97 in) or more of precipitation in 56 years, most in 1981 with 6.
Knysna (Tnk): days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1954 with 2.
5 fixed thresholds have at least one qualifying day at Knysna (Tnk).

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

88 years with a qualifying day

Days per year at Knysna (Tnk) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1952.

Days with 10 mm (0.39 in) or more of precipitation per year at Knysna (Tnk)
Year	Days	Decade average
1883	11	19.6
1884	24	19.6
1885	24	19.6
1886	22	19.6
1887	11	19.6
1888	22	19.6
1889	23	19.6
1890	14	20.9
1891	21	20.9
1892	22	20.9
1893	22	20.9
1894	26	20.9
1895	21	20.9
1896	25	20.9
1897	20	20.9
1898	24	20.9
1899	14	20.9
1900	21	24.2
1901	21	24.2
1902	33	24.2
1903	26	24.2
1906	20	24.2
1910	23	21.8
1913	15	21.8
1914	24	21.8
1915	22	21.8
1916	25	21.8
1917	23	21.8
1918	20	21.8
1919	22	21.8
1920	21	22.7
1921	33	22.7
1922	31	22.7
1923	18	22.7
1924	20	22.7
1925	23	22.7
1926	23	22.7
1927	12	22.7
1928	25	22.7
1929	21	22.7
1930	18	21.5
1931	23	21.5
1932	29	21.5
1933	16	21.5
1952	34	28.8
1953	31	28.8
1954	26	28.8
1955	31	28.8
1956	32	28.8
1957	22	28.8
1958	22	28.8
1959	32	28.8
1960	23	22.4
1961	22	22.4
1962	21	22.4
1963	16	22.4
1964	23	22.4
1965	27	22.4
1967	23	22.4
1968	28	22.4
1969	19	22.4
1970	14	21.1
1971	24	21.1
1972	21	21.1
1973	19	21.1
1974	22	21.1
1975	26	21.1
1976	25	21.1
1977	26	21.1
1978	16	21.1
1979	18	21.1
1980	26	23.1
1981	27	23.1
1982	25	23.1
1983	33	23.1
1984	22	23.1
1985	23	23.1
1986	15	23.1
1987	20	23.1
1988	20	23.1
1989	20	23.1
1990	20	22.1
1991	19	22.1
1992	23	22.1
1993	21	22.1
1994	26	22.1
1995	27	22.1
1996	19	22.1

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

First to last qualifying date each year at Knysna (Tnk)
Year	First date	Last date
1883	1883-03-25	1883-12-25
1884	1884-01-23	1884-12-29
1885	1885-02-12	1885-12-20
1886	1886-01-09	1886-12-24
1887	1887-01-23	1887-12-12
1888	1888-01-24	1888-12-14
1889	1889-01-06	1889-12-21
1890	1890-01-28	1890-12-09
1891	1891-01-12	1891-12-21
1892	1892-02-05	1892-12-16
1893	1893-01-07	1893-12-22
1894	1894-01-14	1894-12-23
1895	1895-01-04	1895-12-26
1896	1896-01-05	1896-12-30
1897	1897-01-12	1897-12-29
1898	1898-01-05	1898-09-29
1899	1899-01-04	1899-12-27
1900	1900-01-09	1900-12-23
1901	1901-01-15	1901-11-28
1902	1902-01-04	1902-12-19
1903	1903-02-05	1903-12-11
1906	1906-02-01	1906-11-19
1910	1910-02-04	1910-12-22
1913	1913-02-19	1913-11-20
1914	1914-01-21	1914-11-30
1915	1915-01-22	1915-12-21
1916	1916-01-18	1916-12-18
1917	1917-01-07	1917-12-30
1918	1918-01-02	1918-12-24
1919	1919-01-01	1919-12-23
1920	1920-03-20	1920-12-26
1921	1921-01-12	1921-12-29
1922	1922-01-29	1922-11-23
1923	1923-01-27	1923-11-24
1924	1924-01-10	1924-11-14
1925	1925-01-13	1925-12-30
1926	1926-02-15	1926-11-27
1927	1927-01-21	1927-11-16
1928	1928-01-26	1928-12-21
1929	1929-01-19	1929-12-28
1930	1930-02-01	1930-12-10
1931	1931-01-01	1931-10-27
1932	1932-01-01	1932-12-07
1933	1933-02-17	1933-11-26
1952	1952-01-15	1952-12-18
1953	1953-01-11	1953-12-22
1954	1954-01-13	1954-12-15
1955	1955-01-02	1955-12-19
1956	1956-01-26	1956-12-20
1957	1957-01-28	1957-12-12
1958	1958-01-13	1958-12-22
1959	1959-01-01	1959-10-31
1960	1960-01-02	1960-12-17
1961	1961-01-15	1961-11-30
1962	1962-01-15	1962-11-13
1963	1963-01-04	1963-12-11
1964	1964-01-19	1964-11-27
1965	1965-01-05	1965-12-17
1967	1967-01-30	1967-12-10
1968	1968-01-04	1968-12-09
1969	1969-01-20	1969-11-20
1970	1970-01-11	1970-12-06
1971	1971-01-09	1971-11-10
1972	1972-01-09	1972-11-02
1973	1973-01-22	1973-12-08
1974	1974-01-15	1974-11-08
1975	1975-01-02	1975-12-29
1976	1976-01-25	1976-12-30
1977	1977-02-08	1977-12-23
1978	1978-01-08	1978-12-31
1979	1979-01-01	1979-12-25
1980	1980-01-03	1980-11-30
1981	1981-01-06	1981-12-07
1982	1982-01-15	1982-12-30
1983	1983-01-21	1983-12-21
1984	1984-01-01	1984-12-24
1985	1985-01-13	1985-12-19
1986	1986-01-03	1986-12-15
1987	1987-01-01	1987-12-11
1988	1988-04-05	1988-12-19
1989	1989-01-31	1989-12-14
1990	1990-01-06	1990-12-17
1991	1991-01-07	1991-12-25
1992	1992-01-09	1992-11-11
1993	1993-01-10	1993-12-10
1994	1994-01-21	1994-12-24
1995	1995-01-16	1995-12-24
1996	1996-01-25	1996-12-28

Every Fixed Threshold

Fixed thresholds at Knysna (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	88	34	1952	19
25 mm (0.98 in): Days with 25 mm or more rain	87	15	1952	1
50 mm (1.97 in): Days with 50 mm or more rain	56	6	1981	1
100 mm (3.94 in): Days with 100 mm or more rain	4	2	1954	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1916	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1883.

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Data for Knysna (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).

Knysna (Tnk) Threshold Days by Year (SF000140630)

Key Facts for Knysna (Tnk) Thresholds

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

Every Fixed Threshold

Download the Data

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