Zwartmodder Threshold Days by Year
4 fixed thresholds counted per year at Zwartmodder (SF003160610): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Zwartmodder Thresholds
- Zwartmodder: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1955 with 12.
- Zwartmodder: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1921 with 4.
- Zwartmodder: days with 50 mm (1.97 in) or more of precipitation in 10 years, most in 1921 with 1.
- Zwartmodder: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1938 with 1.
- 4 fixed thresholds have at least one qualifying day at Zwartmodder.
Days with 10 mm (0.39 in) or more of precipitation
52 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1921 | 7 | 5 |
| 1922 | 3 | 5 |
| 1923 | 3 | 5 |
| 1924 | 6 | 5 |
| 1925 | 10 | 5 |
| 1926 | 2 | 5 |
| 1927 | 4 | 5 |
| 1928 | 7 | 5 |
| 1929 | 3 | 5 |
| 1930 | 3 | 4.9 |
| 1931 | 5 | 4.9 |
| 1932 | 5 | 4.9 |
| 1933 | 3 | 4.9 |
| 1934 | 9 | 4.9 |
| 1935 | 4 | 4.9 |
| 1936 | 3 | 4.9 |
| 1937 | 5 | 4.9 |
| 1938 | 6 | 4.9 |
| 1939 | 6 | 4.9 |
| 1940 | 7 | 4.8 |
| 1941 | 3 | 4.8 |
| 1942 | 8 | 4.8 |
| 1943 | 4 | 4.8 |
| 1944 | 4 | 4.8 |
| 1945 | 2 | 4.8 |
| 1946 | 4 | 4.8 |
| 1947 | 7 | 4.8 |
| 1948 | 4 | 4.8 |
| 1949 | 5 | 4.8 |
| 1951 | 3 | 5.2 |
| 1952 | 4 | 5.2 |
| 1953 | 2 | 5.2 |
| 1954 | 5 | 5.2 |
| 1955 | 12 | 5.2 |
| 1956 | 6 | 5.2 |
| 1957 | 3 | 5.2 |
| 1958 | 9 | 5.2 |
| 1959 | 3 | 5.2 |
| 1960 | 4 | 4.8 |
| 1961 | 5 | 4.8 |
| 1962 | 2 | 4.8 |
| 1963 | 7 | 4.8 |
| 1964 | 1 | 4.8 |
| 1965 | 5 | 4.8 |
| 1966 | 3 | 4.8 |
| 1967 | 6 | 4.8 |
| 1968 | 6 | 4.8 |
| 1969 | 9 | 4.8 |
| 1970 | 2 | 3.8 |
| 1971 | 5 | 3.8 |
| 1972 | 5 | 3.8 |
| 1973 | 3 | 3.8 |
| Year | First date | Last date |
|---|---|---|
| 1921 | 1921-02-02 | 1921-05-05 |
| 1922 | 1922-03-02 | 1922-11-22 |
| 1923 | 1923-02-16 | 1923-11-20 |
| 1924 | 1924-03-16 | 1924-12-05 |
| 1925 | 1925-01-18 | 1925-07-18 |
| 1926 | 1926-03-05 | 1926-04-10 |
| 1927 | 1927-02-26 | 1927-12-25 |
| 1928 | 1928-01-03 | 1928-05-04 |
| 1929 | 1929-03-09 | 1929-12-18 |
| 1930 | 1930-01-22 | 1930-02-24 |
| 1931 | 1931-01-28 | 1931-11-18 |
| 1932 | 1932-02-07 | 1932-10-23 |
| 1933 | 1933-12-13 | 1933-12-22 |
| 1934 | 1934-01-13 | 1934-12-04 |
| 1935 | 1935-03-13 | 1935-05-11 |
| 1936 | 1936-03-14 | 1936-12-02 |
| 1937 | 1937-01-18 | 1937-03-02 |
| 1938 | 1938-01-27 | 1938-11-03 |
| 1939 | 1939-02-13 | 1939-10-12 |
| 1940 | 1940-02-02 | 1940-12-02 |
| 1941 | 1941-01-29 | 1941-10-26 |
| 1942 | 1942-02-12 | 1942-10-17 |
| 1943 | 1943-01-07 | 1943-11-29 |
| 1944 | 1944-01-13 | 1944-12-17 |
| 1945 | 1945-01-31 | 1945-03-11 |
| 1946 | 1946-01-17 | 1946-04-02 |
| 1947 | 1947-03-20 | 1947-12-15 |
| 1948 | 1948-02-17 | 1948-12-16 |
| 1949 | 1949-02-04 | 1949-12-10 |
| 1951 | 1951-01-01 | 1951-10-31 |
| 1952 | 1952-02-04 | 1952-02-19 |
| 1953 | 1953-02-08 | 1953-12-11 |
| 1954 | 1954-03-13 | 1954-04-30 |
| 1955 | 1955-01-25 | 1955-12-04 |
| 1956 | 1956-01-09 | 1956-03-19 |
| 1957 | 1957-03-28 | 1957-12-30 |
| 1958 | 1958-01-02 | 1958-05-22 |
| 1959 | 1959-03-15 | 1959-06-18 |
| 1960 | 1960-02-20 | 1960-04-20 |
| 1961 | 1961-03-12 | 1961-11-27 |
| 1962 | 1962-09-11 | 1962-11-03 |
| 1963 | 1963-01-13 | 1963-10-27 |
| 1964 | 1964-12-03 | 1964-12-03 |
| 1965 | 1965-03-21 | 1965-07-18 |
| 1966 | 1966-10-14 | 1966-12-20 |
| 1967 | 1967-02-06 | 1967-04-18 |
| 1968 | 1968-03-15 | 1968-11-30 |
| 1969 | 1969-02-19 | 1969-05-29 |
| 1970 | 1970-02-04 | 1970-12-23 |
| 1971 | 1971-01-25 | 1971-10-14 |
| 1972 | 1972-01-05 | 1972-04-12 |
| 1973 | 1973-02-20 | 1973-12-01 |
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 | 52 | 12 | 1955 | 3 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 34 | 4 | 1921 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 10 | 1 | 1921 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1938 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.
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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).