Bontfontein Threshold Days by Year (SF007232310)

5 fixed thresholds counted per year at Bontfontein (SF007232310): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bontfontein Thresholds

Bontfontein: days with 10 mm (0.39 in) or more of precipitation in 63 years, most in 1980 with 31.
Bontfontein: days with 25 mm (0.98 in) or more of precipitation in 61 years, most in 1974 with 19.
Bontfontein: days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 1974 with 12.
Bontfontein: days with 100 mm (3.94 in) or more of precipitation in 15 years, most in 1929 with 2.
5 fixed thresholds have at least one qualifying day at Bontfontein.

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

63 years with a qualifying day

Days per year at Bontfontein with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1980.

Days with 10 mm (0.39 in) or more of precipitation per year at Bontfontein
Year	Days	Decade average
1923	24	16.6
1924	18	16.6
1925	21	16.6
1926	11	16.6
1927	14	16.6
1928	6	16.6
1929	22	16.6
1930	21	15.9
1931	18	15.9
1932	14	15.9
1933	15	15.9
1934	21	15.9
1935	6	15.9
1936	10	15.9
1939	22	15.9
1940	27	16.1
1941	8	16.1
1942	16	16.1
1943	18	16.1
1945	11	16.1
1948	17	16.1
1949	16	16.1
1950	19	19.4
1951	16	19.4
1952	14	19.4
1954	14	19.4
1955	25	19.4
1956	15	19.4
1957	28	19.4
1958	27	19.4
1959	17	19.4
1960	26	18.6
1961	27	18.6
1962	13	18.6
1963	12	18.6
1964	20	18.6
1965	11	18.6
1966	17	18.6
1967	21	18.6
1968	16	18.6
1969	23	18.6
1970	16	21.7
1971	24	21.7
1972	22	21.7
1973	19	21.7
1974	24	21.7
1975	24	21.7
1976	29	21.7
1977	25	21.7
1978	21	21.7
1979	13	21.7
1980	31	16.4
1982	8	16.4
1983	7	16.4
1984	21	16.4
1985	16	16.4
1986	16	16.4
1987	17	16.4
1988	20	16.4
1989	12	16.4
1990	11	13
1994	10	13
1995	18	13

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

First to last qualifying date each year at Bontfontein
Year	First date	Last date
1923	1923-01-03	1923-12-28
1924	1924-01-26	1924-12-30
1925	1925-01-13	1925-10-27
1926	1926-01-03	1926-12-21
1927	1927-01-03	1927-12-01
1928	1928-01-06	1928-12-23
1929	1929-01-12	1929-12-20
1930	1930-01-17	1930-12-24
1931	1931-01-04	1931-12-03
1932	1932-01-20	1932-12-26
1933	1933-01-13	1933-12-14
1934	1934-01-05	1934-12-26
1935	1935-01-31	1935-09-26
1936	1936-01-18	1936-12-13
1939	1939-01-01	1939-12-30
1940	1940-01-18	1940-12-31
1941	1941-02-22	1941-12-14
1942	1942-01-07	1942-12-03
1943	1943-02-05	1943-12-27
1945	1945-01-09	1945-12-27
1948	1948-01-01	1948-11-11
1949	1949-01-13	1949-12-27
1950	1950-01-11	1950-12-28
1951	1951-01-21	1951-12-13
1952	1952-01-01	1952-12-14
1954	1954-01-14	1954-12-30
1955	1955-01-02	1955-12-28
1956	1956-01-13	1956-11-24
1957	1957-01-08	1957-12-11
1958	1958-01-01	1958-12-28
1959	1959-01-02	1959-12-19
1960	1960-01-12	1960-12-30
1961	1961-01-20	1961-12-27
1962	1962-01-11	1962-11-22
1963	1963-01-25	1963-12-30
1964	1964-01-02	1964-12-18
1965	1965-01-12	1965-12-29
1966	1966-01-27	1966-12-22
1967	1967-01-14	1967-12-05
1968	1968-01-20	1968-12-27
1969	1969-01-05	1969-12-10
1970	1970-01-21	1970-12-31
1971	1971-01-01	1971-12-13
1972	1972-01-01	1972-12-30
1973	1973-01-16	1973-12-21
1974	1974-01-14	1974-12-24
1975	1975-01-17	1975-12-23
1976	1976-01-01	1976-12-22
1977	1977-01-25	1977-12-25
1978	1978-01-01	1978-11-06
1979	1979-01-19	1979-11-09
1980	1980-01-05	1980-11-25
1982	1982-01-01	1982-12-25
1983	1983-03-22	1983-12-09
1984	1984-01-12	1984-12-03
1985	1985-01-06	1985-12-28
1986	1986-01-18	1986-12-27
1987	1987-01-23	1987-12-26
1988	1988-01-08	1988-10-21
1989	1989-04-27	1989-12-14
1990	1990-01-10	1990-11-24
1994	1994-01-03	1994-12-14
1995	1995-01-30	1995-12-24

Every Fixed Threshold

Fixed thresholds at Bontfontein
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	63	31	1980	18
25 mm (0.98 in): Days with 25 mm or more rain	61	19	1974	4
50 mm (1.97 in): Days with 50 mm or more rain	44	12	1974	2
100 mm (3.94 in): Days with 100 mm or more rain	15	2	1929	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1933	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

Data for Bontfontein 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).

Bontfontein Threshold Days by Year (SF007232310)

Key Facts for Bontfontein Thresholds

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

Every Fixed Threshold

Download the Data

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