Merweville Threshold Days by Year
3 fixed thresholds counted per year at Merweville (SF000680100): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Merweville Thresholds
- Merweville: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 1985 with 15.
- Merweville: days with 25 mm (0.98 in) or more of precipitation in 51 years, most in 1996 with 6.
- Merweville: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1981 with 2.
- 3 fixed thresholds have at least one qualifying day at Merweville.
Days with 10 mm (0.39 in) or more of precipitation
81 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1911 | 7 | 3.8 |
| 1912 | 4 | 3.8 |
| 1913 | 7 | 3.8 |
| 1914 | 2 | 3.8 |
| 1915 | 1 | 3.8 |
| 1916 | 3 | 3.8 |
| 1917 | 5 | 3.8 |
| 1918 | 4 | 3.8 |
| 1919 | 1 | 3.8 |
| 1920 | 2 | 3.6 |
| 1922 | 4 | 3.6 |
| 1923 | 4 | 3.6 |
| 1924 | 5 | 3.6 |
| 1925 | 4 | 3.6 |
| 1928 | 3 | 3.6 |
| 1929 | 3 | 3.6 |
| 1930 | 9 | 5.2 |
| 1931 | 5 | 5.2 |
| 1932 | 2 | 5.2 |
| 1933 | 6 | 5.2 |
| 1934 | 7 | 5.2 |
| 1935 | 4 | 5.2 |
| 1936 | 5 | 5.2 |
| 1937 | 7 | 5.2 |
| 1938 | 1 | 5.2 |
| 1939 | 6 | 5.2 |
| 1940 | 5 | 3.1 |
| 1942 | 3 | 3.1 |
| 1943 | 1 | 3.1 |
| 1944 | 1 | 3.1 |
| 1945 | 3 | 3.1 |
| 1946 | 3 | 3.1 |
| 1947 | 5 | 3.1 |
| 1948 | 6 | 3.1 |
| 1949 | 1 | 3.1 |
| 1950 | 8 | 5.4 |
| 1951 | 1 | 5.4 |
| 1952 | 10 | 5.4 |
| 1954 | 3 | 5.4 |
| 1955 | 6 | 5.4 |
| 1956 | 7 | 5.4 |
| 1957 | 5 | 5.4 |
| 1958 | 3 | 5.4 |
| 1960 | 1 | 3.7 |
| 1961 | 10 | 3.7 |
| 1962 | 3 | 3.7 |
| 1963 | 6 | 3.7 |
| 1964 | 2 | 3.7 |
| 1965 | 3 | 3.7 |
| 1966 | 1 | 3.7 |
| 1967 | 4 | 3.7 |
| 1968 | 3 | 3.7 |
| 1969 | 4 | 3.7 |
| 1970 | 4 | 5.5 |
| 1971 | 8 | 5.5 |
| 1972 | 3 | 5.5 |
| 1973 | 7 | 5.5 |
| 1974 | 8 | 5.5 |
| 1975 | 7 | 5.5 |
| 1976 | 8 | 5.5 |
| 1977 | 5 | 5.5 |
| 1978 | 2 | 5.5 |
| 1979 | 3 | 5.5 |
| 1980 | 4 | 6.5 |
| 1981 | 11 | 6.5 |
| 1982 | 7 | 6.5 |
| 1983 | 2 | 6.5 |
| 1984 | 4 | 6.5 |
| 1985 | 15 | 6.5 |
| 1986 | 6 | 6.5 |
| 1987 | 6 | 6.5 |
| 1988 | 7 | 6.5 |
| 1989 | 3 | 6.5 |
| 1990 | 2 | 4.9 |
| 1991 | 2 | 4.9 |
| 1992 | 8 | 4.9 |
| 1993 | 4 | 4.9 |
| 1994 | 3 | 4.9 |
| 1995 | 6 | 4.9 |
| 1996 | 11 | 4.9 |
| 1997 | 3 | 4.9 |
| Year | First date | Last date |
|---|---|---|
| 1911 | 1911-01-05 | 1911-09-29 |
| 1912 | 1912-01-13 | 1912-06-16 |
| 1913 | 1913-01-04 | 1913-11-20 |
| 1914 | 1914-02-19 | 1914-05-25 |
| 1915 | 1915-02-14 | 1915-02-14 |
| 1916 | 1916-03-01 | 1916-12-18 |
| 1917 | 1917-03-12 | 1917-10-01 |
| 1918 | 1918-01-01 | 1918-10-29 |
| 1919 | 1919-03-14 | 1919-03-14 |
| 1920 | 1920-02-16 | 1920-12-17 |
| 1922 | 1922-01-11 | 1922-06-25 |
| 1923 | 1923-04-06 | 1923-11-14 |
| 1924 | 1924-01-11 | 1924-12-18 |
| 1925 | 1925-02-23 | 1925-05-30 |
| 1928 | 1928-03-12 | 1928-03-29 |
| 1929 | 1929-04-24 | 1929-12-17 |
| 1930 | 1930-01-03 | 1930-05-30 |
| 1931 | 1931-03-06 | 1931-07-12 |
| 1932 | 1932-10-24 | 1932-11-26 |
| 1933 | 1933-03-07 | 1933-12-21 |
| 1934 | 1934-01-12 | 1934-11-11 |
| 1935 | 1935-06-11 | 1935-11-02 |
| 1936 | 1936-07-12 | 1936-12-04 |
| 1937 | 1937-01-26 | 1937-12-20 |
| 1938 | 1938-03-25 | 1938-03-25 |
| 1939 | 1939-01-21 | 1939-08-22 |
| 1940 | 1940-02-03 | 1940-11-09 |
| 1942 | 1942-10-10 | 1942-12-03 |
| 1943 | 1943-01-21 | 1943-01-21 |
| 1944 | 1944-09-12 | 1944-09-12 |
| 1945 | 1945-03-06 | 1945-03-10 |
| 1946 | 1946-03-21 | 1946-04-12 |
| 1947 | 1947-03-20 | 1947-12-03 |
| 1948 | 1948-01-22 | 1948-12-18 |
| 1949 | 1949-11-15 | 1949-11-15 |
| 1950 | 1950-01-05 | 1950-11-10 |
| 1951 | 1951-01-11 | 1951-01-11 |
| 1952 | 1952-02-19 | 1952-12-14 |
| 1954 | 1954-03-14 | 1954-05-20 |
| 1955 | 1955-02-19 | 1955-12-17 |
| 1956 | 1956-01-16 | 1956-12-19 |
| 1957 | 1957-01-30 | 1957-12-29 |
| 1958 | 1958-04-18 | 1958-05-28 |
| 1960 | 1960-12-19 | 1960-12-19 |
| 1961 | 1961-03-09 | 1961-07-30 |
| 1962 | 1962-01-18 | 1962-11-21 |
| 1963 | 1963-01-16 | 1963-12-09 |
| 1964 | 1964-02-01 | 1964-09-16 |
| 1965 | 1965-03-23 | 1965-11-03 |
| 1966 | 1966-03-20 | 1966-03-20 |
| 1967 | 1967-03-24 | 1967-06-09 |
| 1968 | 1968-03-30 | 1968-10-22 |
| 1969 | 1969-02-24 | 1969-04-09 |
| 1970 | 1970-08-25 | 1970-12-06 |
| 1971 | 1971-01-17 | 1971-12-11 |
| 1972 | 1972-01-07 | 1972-11-03 |
| 1973 | 1973-02-18 | 1973-12-24 |
| 1974 | 1974-01-14 | 1974-04-17 |
| 1975 | 1975-01-31 | 1975-12-22 |
| 1976 | 1976-01-21 | 1976-11-06 |
| 1977 | 1977-02-11 | 1977-04-23 |
| 1978 | 1978-04-06 | 1978-12-09 |
| 1979 | 1979-02-23 | 1979-07-20 |
| 1980 | 1980-09-24 | 1980-12-16 |
| 1981 | 1981-01-24 | 1981-12-06 |
| 1982 | 1982-04-04 | 1982-11-15 |
| 1983 | 1983-07-24 | 1983-07-25 |
| 1984 | 1984-03-10 | 1984-10-09 |
| 1985 | 1985-01-13 | 1985-12-19 |
| 1986 | 1986-04-25 | 1986-11-26 |
| 1987 | 1987-04-14 | 1987-09-29 |
| 1988 | 1988-02-20 | 1988-09-15 |
| 1989 | 1989-04-14 | 1989-11-15 |
| 1990 | 1990-04-19 | 1990-04-21 |
| 1991 | 1991-01-26 | 1991-06-17 |
| 1992 | 1992-02-12 | 1992-11-11 |
| 1993 | 1993-02-20 | 1993-12-14 |
| 1994 | 1994-01-19 | 1994-10-21 |
| 1995 | 1995-02-28 | 1995-12-23 |
| 1996 | 1996-01-24 | 1996-12-28 |
| 1997 | 1997-05-25 | 1997-07-19 |
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 | 81 | 15 | 1985 | 3 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 51 | 6 | 1996 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 11 | 2 | 1981 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.
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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).