Swaelfontein Threshold Days by Year (SF001672640)
4 fixed thresholds counted per year at Swaelfontein (SF001672640): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Swaelfontein Thresholds
- Swaelfontein: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1963 with 16.
- Swaelfontein: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1909 with 6.
- Swaelfontein: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1942 with 1.
- Swaelfontein: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1961 with 1.
- 4 fixed thresholds have at least one qualifying day at Swaelfontein.
Days with 10 mm (0.39 in) or more of precipitation
54 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1904 | 7 | 7.5 |
| 1905 | 3 | 7.5 |
| 1906 | 9 | 7.5 |
| 1907 | 10 | 7.5 |
| 1908 | 3 | 7.5 |
| 1909 | 13 | 7.5 |
| 1911 | 11 | 4.9 |
| 1912 | 3 | 4.9 |
| 1913 | 8 | 4.9 |
| 1914 | 3 | 4.9 |
| 1915 | 2 | 4.9 |
| 1916 | 4 | 4.9 |
| 1918 | 3 | 4.9 |
| 1928 | 13 | 10 |
| 1929 | 7 | 10 |
| 1930 | 1 | 6 |
| 1931 | 3 | 6 |
| 1934 | 9 | 6 |
| 1935 | 7 | 6 |
| 1936 | 9 | 6 |
| 1937 | 5 | 6 |
| 1938 | 8 | 6 |
| 1939 | 6 | 6 |
| 1940 | 7 | 6.6 |
| 1941 | 9 | 6.6 |
| 1942 | 8 | 6.6 |
| 1943 | 10 | 6.6 |
| 1944 | 1 | 6.6 |
| 1945 | 5 | 6.6 |
| 1946 | 5 | 6.6 |
| 1947 | 5 | 6.6 |
| 1948 | 10 | 6.6 |
| 1949 | 6 | 6.6 |
| 1950 | 13 | 7.6 |
| 1951 | 3 | 7.6 |
| 1952 | 5 | 7.6 |
| 1953 | 8 | 7.6 |
| 1954 | 9 | 7.6 |
| 1955 | 9 | 7.6 |
| 1956 | 11 | 7.6 |
| 1957 | 7 | 7.6 |
| 1958 | 7 | 7.6 |
| 1959 | 4 | 7.6 |
| 1960 | 5 | 7.3 |
| 1961 | 14 | 7.3 |
| 1962 | 3 | 7.3 |
| 1963 | 16 | 7.3 |
| 1964 | 11 | 7.3 |
| 1965 | 6 | 7.3 |
| 1966 | 5 | 7.3 |
| 1967 | 8 | 7.3 |
| 1968 | 4 | 7.3 |
| 1969 | 1 | 7.3 |
| 1970 | 1 | 1 |
| Year | First date | Last date |
|---|---|---|
| 1904 | 1904-01-09 | 1904-12-18 |
| 1905 | 1905-01-13 | 1905-03-25 |
| 1906 | 1906-03-14 | 1906-12-11 |
| 1907 | 1907-01-05 | 1907-12-03 |
| 1908 | 1908-03-26 | 1908-07-11 |
| 1909 | 1909-01-02 | 1909-12-26 |
| 1911 | 1911-01-05 | 1911-11-04 |
| 1912 | 1912-06-16 | 1912-12-30 |
| 1913 | 1913-02-05 | 1913-10-09 |
| 1914 | 1914-04-02 | 1914-05-27 |
| 1915 | 1915-02-16 | 1915-12-29 |
| 1916 | 1916-03-02 | 1916-11-21 |
| 1918 | 1918-01-01 | 1918-02-26 |
| 1928 | 1928-01-03 | 1928-09-05 |
| 1929 | 1929-03-30 | 1929-12-29 |
| 1930 | 1930-02-13 | 1930-02-13 |
| 1931 | 1931-01-14 | 1931-12-29 |
| 1934 | 1934-02-17 | 1934-12-20 |
| 1935 | 1935-02-23 | 1935-11-02 |
| 1936 | 1936-02-25 | 1936-11-26 |
| 1937 | 1937-01-26 | 1937-12-15 |
| 1938 | 1938-01-28 | 1938-11-02 |
| 1939 | 1939-01-30 | 1939-08-21 |
| 1940 | 1940-01-28 | 1940-09-11 |
| 1941 | 1941-01-05 | 1941-10-27 |
| 1942 | 1942-02-24 | 1942-12-03 |
| 1943 | 1943-04-23 | 1943-12-31 |
| 1944 | 1944-03-09 | 1944-03-09 |
| 1945 | 1945-03-06 | 1945-12-04 |
| 1946 | 1946-01-18 | 1946-04-04 |
| 1947 | 1947-03-20 | 1947-12-03 |
| 1948 | 1948-02-14 | 1948-04-20 |
| 1949 | 1949-03-02 | 1949-12-10 |
| 1950 | 1950-02-23 | 1950-11-29 |
| 1951 | 1951-01-01 | 1951-05-15 |
| 1952 | 1952-02-05 | 1952-07-13 |
| 1953 | 1953-02-06 | 1953-12-19 |
| 1954 | 1954-03-05 | 1954-12-08 |
| 1955 | 1955-02-20 | 1955-12-04 |
| 1956 | 1956-01-14 | 1956-12-11 |
| 1957 | 1957-02-10 | 1957-12-29 |
| 1958 | 1958-01-12 | 1958-05-29 |
| 1959 | 1959-02-12 | 1959-12-03 |
| 1960 | 1960-02-13 | 1960-08-19 |
| 1961 | 1961-01-02 | 1961-11-13 |
| 1962 | 1962-01-18 | 1962-11-24 |
| 1963 | 1963-01-02 | 1963-12-08 |
| 1964 | 1964-02-11 | 1964-12-27 |
| 1965 | 1965-03-22 | 1965-11-15 |
| 1966 | 1966-01-21 | 1966-11-10 |
| 1967 | 1967-01-30 | 1967-11-03 |
| 1968 | 1968-03-29 | 1968-10-22 |
| 1969 | 1969-04-09 | 1969-04-09 |
| 1970 | 1970-08-27 | 1970-08-27 |
Every Fixed Threshold
| 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 | 54 | 16 | 1963 | 1 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 39 | 6 | 1909 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 7 | 1 | 1942 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1961 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.
Download the Data
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 . Last revised (2025-12-31).