Jhb-Turffontein Threshold Days by Year (SF004760440)

5 fixed thresholds counted per year at Jhb-Turffontein (SF004760440): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Jhb-Turffontein Thresholds

Jhb-Turffontein: days with 10 mm (0.39 in) or more of precipitation in 80 years, most in 1942 with 42.
Jhb-Turffontein: days with 25 mm (0.98 in) or more of precipitation in 80 years, most in 1915 with 15.
Jhb-Turffontein: days with 50 mm (1.97 in) or more of precipitation in 49 years, most in 1987 with 5.
Jhb-Turffontein: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1918 with 1.
5 fixed thresholds have at least one qualifying day at Jhb-Turffontein.

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

80 years with a qualifying day

Days per year at Jhb-Turffontein with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1942.

Days with 10 mm (0.39 in) or more of precipitation per year at Jhb-Turffontein
Year	Days	Decade average
1914	19	24.3
1915	32	24.3
1916	14	24.3
1917	35	24.3
1918	31	24.3
1919	15	24.3
1920	29	25.6
1921	21	25.6
1922	24	25.6
1923	23	25.6
1924	30	25.6
1925	33	25.6
1926	19	25.6
1927	19	25.6
1928	26	25.6
1929	32	25.6
1932	16	24.4
1933	27	24.4
1934	36	24.4
1935	14	24.4
1936	23	24.4
1937	20	24.4
1938	25	24.4
1939	34	24.4
1940	25	25.3
1941	20	25.3
1942	42	25.3
1943	24	25.3
1944	27	25.3
1945	16	25.3
1946	22	25.3
1947	27	25.3
1948	21	25.3
1949	29	25.3
1950	27	25.6
1952	24	25.6
1953	16	25.6
1955	29	25.6
1956	23	25.6
1957	33	25.6
1958	35	25.6
1959	18	25.6
1960	25	23.1
1961	22	23.1
1962	17	23.1
1963	15	23.1
1964	23	23.1
1965	19	23.1
1966	26	23.1
1967	36	23.1
1968	18	23.1
1969	30	23.1
1970	22	27
1971	37	27
1972	20	27
1973	24	27
1974	27	27
1975	29	27
1976	32	27
1977	22	27
1978	27	27
1979	30	27
1980	25	24.3
1981	24	24.3
1982	20	24.3
1983	25	24.3
1984	18	24.3
1985	20	24.3
1986	26	24.3
1987	38	24.3
1988	19	24.3
1989	28	24.3
1990	18	24
1991	22	24
1992	15	24
1993	24	24
1994	20	24
1995	31	24
1996	35	24
1997	27	24

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

First to last qualifying date each year at Jhb-Turffontein
Year	First date	Last date
1914	1914-01-03	1914-12-28
1915	1915-01-05	1915-12-31
1916	1916-01-10	1916-12-28
1917	1917-01-05	1917-12-31
1918	1918-01-05	1918-12-31
1919	1919-01-02	1919-12-16
1920	1920-01-03	1920-12-31
1921	1921-01-06	1921-11-28
1922	1922-01-11	1922-12-29
1923	1923-01-02	1923-12-18
1924	1924-01-08	1924-12-30
1925	1925-01-08	1925-12-28
1926	1926-01-03	1926-12-27
1927	1927-01-17	1927-12-23
1928	1928-01-05	1928-12-30
1929	1929-01-14	1929-11-22
1932	1932-01-06	1932-12-24
1933	1933-01-02	1933-12-31
1934	1934-01-02	1934-12-11
1935	1935-01-11	1935-12-30
1936	1936-01-11	1936-12-29
1937	1937-01-03	1937-12-30
1938	1938-01-13	1938-12-29
1939	1939-01-01	1939-12-13
1940	1940-01-14	1940-12-28
1941	1941-01-14	1941-12-12
1942	1942-01-02	1942-12-15
1943	1943-01-11	1943-12-28
1944	1944-01-05	1944-12-24
1945	1945-01-19	1945-12-02
1946	1946-01-02	1946-11-20
1947	1947-01-04	1947-12-30
1948	1948-01-06	1948-12-01
1949	1949-01-05	1949-12-31
1950	1950-01-16	1950-12-31
1952	1952-01-02	1952-12-30
1953	1953-02-09	1953-12-16
1955	1955-01-02	1955-12-31
1956	1956-01-14	1956-12-23
1957	1957-01-02	1957-11-29
1958	1958-01-04	1958-12-27
1959	1959-02-15	1959-12-31
1960	1960-01-16	1960-12-27
1961	1961-01-15	1961-12-18
1962	1962-01-28	1962-11-30
1963	1963-01-09	1963-12-13
1964	1964-01-04	1964-12-27
1965	1965-01-06	1965-12-28
1966	1966-01-11	1966-12-17
1967	1967-01-03	1967-12-19
1968	1968-01-15	1968-12-03
1969	1969-01-08	1969-12-07
1970	1970-01-16	1970-12-30
1971	1971-01-01	1971-12-27
1972	1972-01-17	1972-12-25
1973	1973-01-23	1973-12-25
1974	1974-01-05	1974-12-18
1975	1975-01-07	1975-12-25
1976	1976-01-04	1976-12-14
1977	1977-01-05	1977-12-31
1978	1978-01-01	1978-12-22
1979	1979-01-13	1979-12-23
1980	1980-01-06	1980-12-27
1981	1981-01-21	1981-12-23
1982	1982-01-07	1982-12-31
1983	1983-01-15	1983-12-30
1984	1984-01-01	1984-12-16
1985	1985-01-04	1985-12-26
1986	1986-01-16	1986-12-28
1987	1987-01-04	1987-12-27
1988	1988-01-24	1988-12-30
1989	1989-01-20	1989-12-28
1990	1990-01-12	1990-12-22
1991	1991-01-06	1991-12-26
1992	1992-01-16	1992-12-21
1993	1993-01-03	1993-12-23
1994	1994-01-10	1994-12-26
1995	1995-01-16	1995-12-23
1996	1996-01-04	1996-12-22
1997	1997-01-03	1997-11-30

Every Fixed Threshold

Fixed thresholds at Jhb-Turffontein
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	80	42	1942	27
25 mm (0.98 in): Days with 25 mm or more rain	80	15	1915	11
50 mm (1.97 in): Days with 50 mm or more rain	49	5	1987	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1918	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1918	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.

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Data for Jhb-Turffontein 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).

Jhb-Turffontein Threshold Days by Year (SF004760440)

Key Facts for Jhb-Turffontein Thresholds

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

Every Fixed Threshold

Download the Data

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