Port Alfred Threshold Days by Year (SF000376960)

4 fixed thresholds counted per year at Port Alfred (SF000376960): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Port Alfred Thresholds

Port Alfred: days with 10 mm (0.39 in) or more of precipitation in 86 years, most in 1974 with 38.
Port Alfred: days with 25 mm (0.98 in) or more of precipitation in 85 years, most in 1974 with 14.
Port Alfred: days with 50 mm (1.97 in) or more of precipitation in 56 years, most in 1922 with 7.
Port Alfred: days with 100 mm (3.94 in) or more of precipitation in 12 years, most in 1964 with 2.
4 fixed thresholds have at least one qualifying day at Port Alfred.

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

86 years with a qualifying day

Days per year at Port Alfred with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1974.

Days with 10 mm (0.39 in) or more of precipitation per year at Port Alfred
Year	Days	Decade average
1887	16	20.3
1888	23	20.3
1889	22	20.3
1890	13	18.2
1891	23	18.2
1892	18	18.2
1894	16	18.2
1895	18	18.2
1896	23	18.2
1897	21	18.2
1898	21	18.2
1899	11	18.2
1900	15	19.6
1901	17	19.6
1905	18	19.6
1906	28	19.6
1907	16	19.6
1908	27	19.6
1909	16	19.6
1911	25	18.6
1913	19	18.6
1914	19	18.6
1915	21	18.6
1916	12	18.6
1917	21	18.6
1918	17	18.6
1919	15	18.6
1920	15	19.5
1922	24	19.5
1939	22	22
1940	21	18
1941	18	18
1942	24	18
1943	18	18
1944	22	18
1945	13	18
1946	13	18
1947	19	18
1948	16	18
1949	16	18
1950	20	20.3
1951	18	20.3
1952	25	20.3
1953	22	20.3
1954	23	20.3
1955	17	20.3
1956	20	20.3
1957	15	20.3
1958	20	20.3
1959	23	20.3
1960	17	19
1962	15	19
1963	29	19
1964	20	19
1965	19	19
1966	16	19
1967	20	19
1968	20	19
1969	15	19
1970	15	23.1
1971	24	23.1
1972	18	23.1
1973	17	23.1
1974	38	23.1
1975	16	23.1
1976	26	23.1
1977	23	23.1
1978	29	23.1
1979	25	23.1
1980	15	16.6
1981	26	16.6
1982	11	16.6
1983	11	16.6
1984	15	16.6
1985	18	16.6
1986	20	16.6
1987	13	16.6
1988	21	16.6
1989	16	16.6
1990	18	19.3
1991	18	19.3
1992	16	19.3
1993	20	19.3
1994	22	19.3
1995	21	19.3
1996	20	19.3

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

First to last qualifying date each year at Port Alfred
Year	First date	Last date
1887	1887-01-22	1887-11-19
1888	1888-01-24	1888-12-12
1889	1889-01-04	1889-12-20
1890	1890-02-20	1890-12-08
1891	1891-01-11	1891-12-22
1892	1892-02-06	1892-12-16
1894	1894-01-28	1894-11-20
1895	1895-01-22	1895-12-26
1896	1896-01-06	1896-12-30
1897	1897-01-13	1897-12-21
1898	1898-01-09	1898-12-24
1899	1899-01-09	1899-12-30
1900	1900-03-23	1900-12-20
1901	1901-02-14	1901-11-21
1905	1905-02-08	1905-10-10
1906	1906-01-31	1906-12-31
1907	1907-01-06	1907-12-27
1908	1908-02-28	1908-12-09
1909	1909-02-15	1909-12-24
1911	1911-01-05	1911-11-20
1913	1913-01-01	1913-12-08
1914	1914-01-23	1914-12-22
1915	1915-01-15	1915-12-30
1916	1916-01-04	1916-12-18
1917	1917-03-23	1917-12-19
1918	1918-01-19	1918-12-12
1919	1919-01-07	1919-11-08
1920	1920-01-05	1920-12-28
1922	1922-02-19	1922-11-23
1939	1939-02-01	1939-12-05
1940	1940-01-22	1940-11-11
1941	1941-02-03	1941-12-25
1942	1942-01-01	1942-12-02
1943	1943-01-12	1943-12-13
1944	1944-01-14	1944-12-31
1945	1945-01-31	1945-12-22
1946	1946-01-10	1946-11-20
1947	1947-01-10	1947-12-04
1948	1948-02-21	1948-11-12
1949	1949-01-14	1949-12-24
1950	1950-04-22	1950-12-31
1951	1951-01-02	1951-12-11
1952	1952-01-14	1952-12-01
1953	1953-02-07	1953-11-27
1954	1954-02-14	1954-12-02
1955	1955-01-12	1955-11-29
1956	1956-01-30	1956-12-20
1957	1957-02-20	1957-10-02
1958	1958-01-17	1958-12-20
1959	1959-01-12	1959-12-30
1960	1960-01-04	1960-11-20
1962	1962-01-20	1962-11-20
1963	1963-01-05	1963-12-12
1964	1964-01-02	1964-12-20
1965	1965-02-12	1965-11-23
1966	1966-01-20	1966-11-05
1967	1967-01-31	1967-11-17
1968	1968-02-17	1968-11-22
1969	1969-01-21	1969-08-20
1970	1970-01-31	1970-12-06
1971	1971-01-25	1971-12-11
1972	1972-01-09	1972-11-03
1973	1973-02-17	1973-11-20
1974	1974-01-15	1974-11-29
1975	1975-01-02	1975-12-22
1976	1976-02-04	1976-12-24
1977	1977-02-04	1977-12-31
1978	1978-01-08	1978-12-21
1979	1979-02-27	1979-12-24
1980	1980-01-20	1980-12-26
1981	1981-01-22	1981-12-22
1982	1982-03-03	1982-12-04
1983	1983-01-31	1983-12-16
1984	1984-01-01	1984-12-24
1985	1985-01-14	1985-12-19
1986	1986-01-03	1986-12-02
1987	1987-02-09	1987-09-26
1988	1988-02-15	1988-12-24
1989	1989-02-17	1989-12-07
1990	1990-01-05	1990-11-04
1991	1991-01-07	1991-11-14
1992	1992-01-01	1992-11-17
1993	1993-01-08	1993-12-29
1994	1994-01-09	1994-12-27
1995	1995-01-07	1995-12-17
1996	1996-03-01	1996-12-30

Every Fixed Threshold

Fixed thresholds at Port Alfred
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	86	38	1974	20
25 mm (0.98 in): Days with 25 mm or more rain	85	14	1974	4
50 mm (1.97 in): Days with 50 mm or more rain	56	7	1922	1
100 mm (3.94 in): Days with 100 mm or more rain	12	2	1964	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 Port Alfred 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).

Port Alfred Threshold Days by Year (SF000376960)

Key Facts for Port Alfred Thresholds

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

Every Fixed Threshold

Download the Data

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