Umzimkulu (Tnk) Threshold Days by Year (SF002097660)

5 fixed thresholds counted per year at Umzimkulu (Tnk) (SF002097660): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Umzimkulu (Tnk) Thresholds

Umzimkulu (Tnk): days with 10 mm (0.39 in) or more of precipitation in 88 years, most in 1917 with 33.
Umzimkulu (Tnk): days with 25 mm (0.98 in) or more of precipitation in 88 years, most in 1917 with 11.
Umzimkulu (Tnk): days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 1891 with 3.
Umzimkulu (Tnk): days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1905 with 1.
5 fixed thresholds have at least one qualifying day at Umzimkulu (Tnk).

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

88 years with a qualifying day

Days per year at Umzimkulu (Tnk) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1917.

Days with 10 mm (0.39 in) or more of precipitation per year at Umzimkulu (Tnk)
Year	Days	Decade average
1887	22	21.7
1888	23	21.7
1889	20	21.7
1890	23	24.3
1891	21	24.3
1892	25	24.3
1893	31	24.3
1895	26	24.3
1896	26	24.3
1897	23	24.3
1898	25	24.3
1899	19	24.3
1900	22	19.9
1901	23	19.9
1902	27	19.9
1903	17	19.9
1904	15	19.9
1905	14	19.9
1906	14	19.9
1907	24	19.9
1908	22	19.9
1909	21	19.9
1910	19	21.9
1911	27	21.9
1912	15	21.9
1913	20	21.9
1914	22	21.9
1915	21	21.9
1916	20	21.9
1917	33	21.9
1918	25	21.9
1919	17	21.9
1920	32	23
1921	27	23
1922	19	23
1925	27	23
1926	23	23
1927	17	23
1928	18	23
1929	21	23
1930	19	23.2
1931	28	23.2
1932	16	23.2
1933	20	23.2
1934	26	23.2
1935	25	23.2
1936	26	23.2
1937	21	23.2
1938	25	23.2
1939	26	23.2
1940	20	20.4
1941	14	20.4
1942	29	20.4
1944	23	20.4
1945	16	20.4
1946	17	20.4
1947	24	20.4
1948	22	20.4
1949	19	20.4
1950	25	22.2
1951	22	22.2
1952	19	22.2
1954	19	22.2
1955	24	22.2
1956	23	22.2
1957	20	22.2
1958	25	22.2
1959	23	22.2
1960	22	22
1961	20	22
1962	22	22
1963	25	22
1964	25	22
1965	28	22
1966	12	22
1967	33	22
1968	11	22
1969	22	22
1970	23	23.3
1971	24	23.3
1972	14	23.3
1973	28	23.3
1974	29	23.3
1975	24	23.3
1976	24	23.3
1977	22	23.3
1978	27	23.3
1979	18	23.3

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

First to last qualifying date each year at Umzimkulu (Tnk)
Year	First date	Last date
1887	1887-01-09	1887-12-24
1888	1888-01-08	1888-11-28
1889	1889-01-04	1889-12-30
1890	1890-01-01	1890-12-30
1891	1891-01-03	1891-12-20
1892	1892-01-03	1892-12-29
1893	1893-01-07	1893-12-11
1895	1895-01-01	1895-12-28
1896	1896-01-05	1896-12-31
1897	1897-01-02	1897-12-03
1898	1898-01-05	1898-12-24
1899	1899-01-17	1899-12-28
1900	1900-01-05	1900-12-20
1901	1901-01-02	1901-12-26
1902	1902-01-05	1902-12-26
1903	1903-01-04	1903-11-28
1904	1904-01-16	1904-12-18
1905	1905-01-13	1905-05-31
1906	1906-09-19	1906-12-30
1907	1907-01-01	1907-12-14
1908	1908-01-20	1908-12-16
1909	1909-01-04	1909-12-25
1910	1910-01-12	1910-10-24
1911	1911-01-02	1911-11-28
1912	1912-01-14	1912-12-31
1913	1913-01-08	1913-11-10
1914	1914-01-22	1914-12-26
1915	1915-01-13	1915-12-24
1916	1916-01-05	1916-12-28
1917	1917-01-06	1917-12-25
1918	1918-01-14	1918-12-26
1919	1919-01-07	1919-12-13
1920	1920-01-07	1920-12-29
1921	1921-01-04	1921-12-28
1922	1922-01-09	1922-12-19
1925	1925-01-03	1925-12-27
1926	1926-01-11	1926-12-27
1927	1927-02-02	1927-12-04
1928	1928-01-02	1928-12-19
1929	1929-02-04	1929-12-20
1930	1930-01-04	1930-12-29
1931	1931-01-01	1931-12-31
1932	1932-01-25	1932-12-08
1933	1933-01-02	1933-12-30
1934	1934-01-01	1934-12-29
1935	1935-01-03	1935-12-31
1936	1936-01-01	1936-12-27
1937	1937-01-05	1937-12-23
1938	1938-01-06	1938-12-29
1939	1939-01-22	1939-12-26
1940	1940-01-02	1940-12-21
1941	1941-01-20	1941-12-19
1942	1942-01-01	1942-12-31
1944	1944-01-03	1944-11-27
1945	1945-01-06	1945-12-16
1946	1946-01-02	1946-12-23
1947	1947-01-05	1947-12-30
1948	1948-01-24	1948-12-19
1949	1949-01-30	1949-12-21
1950	1950-01-08	1950-12-22
1951	1951-01-02	1951-12-23
1952	1952-01-15	1952-12-13
1954	1954-01-03	1954-12-13
1955	1955-01-04	1955-12-20
1956	1956-01-12	1956-12-22
1957	1957-02-10	1957-12-09
1958	1958-01-02	1958-12-28
1959	1959-01-01	1959-12-17
1960	1960-01-17	1960-12-28
1961	1961-01-17	1961-12-26
1962	1962-01-09	1962-12-28
1963	1963-01-17	1963-12-13
1964	1964-01-07	1964-12-27
1965	1965-01-05	1965-12-16
1966	1966-01-08	1966-11-05
1967	1967-01-30	1967-12-01
1968	1968-01-08	1968-11-23
1969	1969-02-26	1969-12-24
1970	1970-01-01	1970-12-25
1971	1971-01-20	1971-12-13
1972	1972-01-10	1972-12-07
1973	1973-01-02	1973-12-30
1974	1974-01-09	1974-12-27
1975	1975-01-16	1975-12-31
1976	1976-01-04	1976-12-30
1977	1977-01-04	1977-12-30
1978	1978-01-05	1978-12-21
1979	1979-01-02	1979-12-12

Every Fixed Threshold

Fixed thresholds at Umzimkulu (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	33	1917	18
25 mm (0.98 in): Days with 25 mm or more rain	88	11	1917	4
50 mm (1.97 in): Days with 50 mm or more rain	44	3	1891	2
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1905	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1959	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1887.

Download the Data

Data for Umzimkulu (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).

Umzimkulu (Tnk) Threshold Days by Year (SF002097660)

Key Facts for Umzimkulu (Tnk) Thresholds

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

Every Fixed Threshold

Download the Data

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