Tweedraai Threshold Days by Year (SF004783860)

4 fixed thresholds counted per year at Tweedraai (SF004783860): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tweedraai Thresholds

Tweedraai: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1955 with 38.
Tweedraai: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1936 with 13.
Tweedraai: days with 50 mm (1.97 in) or more of precipitation in 36 years, most in 1939 with 4.
Tweedraai: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1936 with 2.
4 fixed thresholds have at least one qualifying day at Tweedraai.

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

56 years with a qualifying day

Days per year at Tweedraai with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1955.

Days with 10 mm (0.39 in) or more of precipitation per year at Tweedraai
Year	Days	Decade average
1924	15	19.8
1925	20	19.8
1926	15	19.8
1927	26	19.8
1928	15	19.8
1929	28	19.8
1930	23	23.1
1931	19	23.1
1932	25	23.1
1933	23	23.1
1934	29	23.1
1935	16	23.1
1936	24	23.1
1937	22	23.1
1938	21	23.1
1939	29	23.1
1940	27	21.6
1941	21	21.6
1942	26	21.6
1943	32	21.6
1944	20	21.6
1945	10	21.6
1946	19	21.6
1947	20	21.6
1948	22	21.6
1949	19	21.6
1950	19	25.2
1951	25	25.2
1952	19	25.2
1953	23	25.2
1954	25	25.2
1955	38	25.2
1956	24	25.2
1957	32	25.2
1958	25	25.2
1959	22	25.2
1960	20	22.9
1961	20	22.9
1962	26	22.9
1963	22	22.9
1964	30	22.9
1965	11	22.9
1966	19	22.9
1967	34	22.9
1968	13	22.9
1969	34	22.9
1970	21	25
1971	28	25
1972	22	25
1973	20	25
1974	32	25
1975	32	25
1976	26	25
1977	25	25
1978	23	25
1979	21	25

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

First to last qualifying date each year at Tweedraai
Year	First date	Last date
1924	1924-01-06	1924-12-28
1925	1925-01-14	1925-11-24
1926	1926-02-01	1926-12-21
1927	1927-01-19	1927-12-26
1928	1928-02-03	1928-12-18
1929	1929-01-10	1929-12-30
1930	1930-01-03	1930-12-30
1931	1931-01-07	1931-11-07
1932	1932-01-01	1932-12-22
1933	1933-01-08	1933-12-31
1934	1934-01-01	1934-12-13
1935	1935-02-02	1935-12-29
1936	1936-01-07	1936-12-22
1937	1937-01-14	1937-12-24
1938	1938-01-10	1938-11-25
1939	1939-01-01	1939-12-29
1940	1940-01-14	1940-12-29
1941	1941-01-09	1941-12-20
1942	1942-01-02	1942-12-19
1943	1943-01-09	1943-12-28
1944	1944-01-06	1944-12-21
1945	1945-01-23	1945-12-02
1946	1946-02-05	1946-12-31
1947	1947-01-06	1947-12-25
1948	1948-01-01	1948-12-16
1949	1949-01-05	1949-12-31
1950	1950-01-07	1950-12-31
1951	1951-01-01	1951-12-23
1952	1952-01-03	1952-12-24
1953	1953-01-04	1953-11-30
1954	1954-01-15	1954-12-06
1955	1955-01-01	1955-12-29
1956	1956-01-12	1956-12-22
1957	1957-01-18	1957-12-23
1958	1958-01-09	1958-12-29
1959	1959-01-05	1959-12-17
1960	1960-01-22	1960-12-22
1961	1961-01-15	1961-12-26
1962	1962-01-03	1962-12-17
1963	1963-01-07	1963-12-29
1964	1964-01-04	1964-12-28
1965	1965-01-13	1965-12-15
1966	1966-01-17	1966-12-20
1967	1967-01-10	1967-12-30
1968	1968-01-19	1968-12-20
1969	1969-01-03	1969-12-27
1970	1970-01-05	1970-12-24
1971	1971-01-02	1971-12-13
1972	1972-01-03	1972-12-14
1973	1973-01-06	1973-12-24
1974	1974-01-01	1974-12-27
1975	1975-01-07	1975-12-27
1976	1976-01-07	1976-12-28
1977	1977-01-07	1977-12-31
1978	1978-01-01	1978-12-22
1979	1979-01-02	1979-12-19

Every Fixed Threshold

Fixed thresholds at Tweedraai
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	56	38	1955	21
25 mm (0.98 in): Days with 25 mm or more rain	56	13	1936	6
50 mm (1.97 in): Days with 50 mm or more rain	36	4	1939	1
100 mm (3.94 in): Days with 100 mm or more rain	5	2	1936	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1924.

Download the Data

Data for Tweedraai 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).

Tweedraai Threshold Days by Year (SF004783860)

Key Facts for Tweedraai Thresholds

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

Every Fixed Threshold

Download the Data

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