Waterkloof Threshold Days by Year

4 fixed thresholds counted per year at Waterkloof (SF005115240): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Waterkloof Thresholds

Waterkloof: days with 10 mm (0.39 in) or more of precipitation in 71 years, most in 1939 with 37.
Waterkloof: days with 25 mm (0.98 in) or more of precipitation in 71 years, most in 1976 with 12.
Waterkloof: days with 50 mm (1.97 in) or more of precipitation in 51 years, most in 1944 with 8.
Waterkloof: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1923 with 1.
4 fixed thresholds have at least one qualifying day at Waterkloof.

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

71 years with a qualifying day

Days per year at Waterkloof with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1939.

Days with 10 mm (0.39 in) or more of precipitation per year at Waterkloof
Year	Days	Decade average
1918	31	23.5
1919	16	23.5
1920	21	20.1
1922	11	20.1
1923	19	20.1
1924	29	20.1
1925	23	20.1
1926	12	20.1
1927	14	20.1
1928	23	20.1
1929	29	20.1
1930	16	20.5
1931	17	20.5
1932	15	20.5
1933	17	20.5
1934	22	20.5
1935	14	20.5
1936	26	20.5
1937	16	20.5
1938	25	20.5
1939	37	20.5
1940	26	22
1941	14	22
1942	29	22
1943	23	22
1944	23	22
1945	14	22
1948	22	22
1949	25	22
1950	19	21.7
1951	17	21.7
1954	22	21.7
1955	27	21.7
1958	25	21.7
1959	20	21.7
1960	23	19.7
1961	24	19.7
1962	16	19.7
1963	18	19.7
1964	15	19.7
1965	14	19.7
1967	30	19.7
1968	15	19.7
1969	22	19.7
1970	19	25
1971	32	25
1972	23	25
1973	25	25
1974	26	25
1975	26	25
1976	30	25
1977	20	25
1978	23	25
1979	26	25
1980	21	20.9
1981	25	20.9
1982	19	20.9
1983	20	20.9
1984	15	20.9
1985	18	20.9
1986	20	20.9
1987	22	20.9
1988	22	20.9
1989	27	20.9
1990	24	21.9
1991	14	21.9
1992	17	21.9
1993	23	21.9
1994	18	21.9
1995	28	21.9
1996	29	21.9

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

First to last qualifying date each year at Waterkloof
Year	First date	Last date
1918	1918-01-03	1918-12-31
1919	1919-01-03	1919-12-15
1920	1920-01-07	1920-12-31
1922	1922-01-11	1922-11-23
1923	1923-01-06	1923-12-19
1924	1924-01-09	1924-12-23
1925	1925-01-05	1925-11-12
1926	1926-01-05	1926-12-04
1927	1927-01-02	1927-12-31
1928	1928-01-05	1928-12-09
1929	1929-01-06	1929-12-24
1930	1930-01-16	1930-12-30
1931	1931-01-12	1931-12-21
1932	1932-01-19	1932-12-31
1933	1933-02-02	1933-12-25
1934	1934-01-04	1934-12-11
1935	1935-01-17	1935-12-31
1936	1936-01-13	1936-12-29
1937	1937-01-03	1937-12-30
1938	1938-01-12	1938-12-29
1939	1939-01-06	1939-12-29
1940	1940-01-16	1940-12-28
1941	1941-01-23	1941-12-20
1942	1942-01-02	1942-12-31
1943	1943-01-22	1943-12-28
1944	1944-01-04	1944-12-09
1945	1945-01-31	1945-12-28
1948	1948-01-03	1948-11-30
1949	1949-01-05	1949-12-18
1950	1950-01-04	1950-11-24
1951	1951-01-02	1951-12-24
1954	1954-01-02	1954-12-28
1955	1955-01-02	1955-12-30
1958	1958-01-03	1958-12-27
1959	1959-01-06	1959-12-22
1960	1960-01-14	1960-12-26
1961	1961-01-28	1961-12-11
1962	1962-01-19	1962-12-30
1963	1963-01-23	1963-11-30
1964	1964-01-25	1964-11-05
1965	1965-01-13	1965-12-27
1967	1967-01-10	1967-12-20
1968	1968-01-19	1968-12-09
1969	1969-01-07	1969-12-24
1970	1970-01-07	1970-12-25
1971	1971-01-03	1971-12-20
1972	1972-01-02	1972-12-31
1973	1973-01-05	1973-12-22
1974	1974-01-01	1974-12-27
1975	1975-01-08	1975-12-31
1976	1976-01-01	1976-12-21
1977	1977-01-05	1977-12-31
1978	1978-01-02	1978-12-22
1979	1979-01-15	1979-12-24
1980	1980-01-07	1980-12-11
1981	1981-01-23	1981-12-20
1982	1982-01-02	1982-12-30
1983	1983-01-13	1983-12-31
1984	1984-01-09	1984-12-18
1985	1985-01-06	1985-12-26
1986	1986-01-01	1986-12-07
1987	1987-01-04	1987-12-11
1988	1988-01-14	1988-12-22
1989	1989-01-08	1989-12-31
1990	1990-01-14	1990-12-23
1991	1991-01-07	1991-12-24
1992	1992-02-20	1992-12-22
1993	1993-01-04	1993-12-29
1994	1994-01-14	1994-12-26
1995	1995-01-14	1995-12-24
1996	1996-01-18	1996-12-17

Every Fixed Threshold

Fixed thresholds at Waterkloof
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	71	37	1939	29
25 mm (0.98 in): Days with 25 mm or more rain	71	12	1976	7
50 mm (1.97 in): Days with 50 mm or more rain	51	8	1944	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1923	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1918.

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Data for Waterkloof 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Waterkloof Threshold Days by Year

Key Facts for Waterkloof Thresholds

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

Every Fixed Threshold

Download the Data

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