Roy Hill Threshold Days by Year
4 fixed thresholds counted per year at Roy Hill (ASN00005023): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Roy Hill Thresholds
- Roy Hill: days with 10 mm (0.39 in) or more of precipitation in 74 years, most in 1942 with 17.
- Roy Hill: days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 1925 with 8.
- Roy Hill: days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 1947 with 5.
- Roy Hill: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1945 with 1.
- 4 fixed thresholds have at least one qualifying day at Roy Hill.
Days with 10 mm (0.39 in) or more of precipitation
74 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1907 | 9 | 8 |
| 1908 | 9 | 8 |
| 1909 | 6 | 8 |
| 1910 | 5 | 8.1 |
| 1911 | 4 | 8.1 |
| 1912 | 6 | 8.1 |
| 1913 | 5 | 8.1 |
| 1914 | 12 | 8.1 |
| 1915 | 16 | 8.1 |
| 1916 | 6 | 8.1 |
| 1917 | 15 | 8.1 |
| 1918 | 6 | 8.1 |
| 1919 | 6 | 8.1 |
| 1920 | 9 | 7.5 |
| 1921 | 8 | 7.5 |
| 1922 | 6 | 7.5 |
| 1923 | 10 | 7.5 |
| 1924 | 1 | 7.5 |
| 1925 | 14 | 7.5 |
| 1926 | 6 | 7.5 |
| 1927 | 9 | 7.5 |
| 1928 | 4 | 7.5 |
| 1929 | 8 | 7.5 |
| 1931 | 13 | 7.4 |
| 1932 | 4 | 7.4 |
| 1933 | 10 | 7.4 |
| 1934 | 10 | 7.4 |
| 1935 | 4 | 7.4 |
| 1936 | 6 | 7.4 |
| 1937 | 6 | 7.4 |
| 1938 | 8 | 7.4 |
| 1939 | 6 | 7.4 |
| 1940 | 6 | 7.6 |
| 1941 | 6 | 7.6 |
| 1942 | 17 | 7.6 |
| 1943 | 9 | 7.6 |
| 1944 | 1 | 7.6 |
| 1945 | 3 | 7.6 |
| 1946 | 9 | 7.6 |
| 1947 | 10 | 7.6 |
| 1948 | 8 | 7.6 |
| 1949 | 7 | 7.6 |
| 1950 | 4 | 3.5 |
| 1951 | 3 | 3.5 |
| 1963 | 9 | 7.7 |
| 1964 | 5 | 7.7 |
| 1965 | 6 | 7.7 |
| 1966 | 9 | 7.7 |
| 1967 | 6 | 7.7 |
| 1968 | 12 | 7.7 |
| 1969 | 7 | 7.7 |
| 1970 | 6 | 8.3 |
| 1971 | 8 | 8.3 |
| 1972 | 3 | 8.3 |
| 1973 | 12 | 8.3 |
| 1974 | 10 | 8.3 |
| 1975 | 12 | 8.3 |
| 1976 | 8 | 8.3 |
| 1977 | 4 | 8.3 |
| 1978 | 12 | 8.3 |
| 1980 | 13 | 8.2 |
| 1981 | 6 | 8.2 |
| 1982 | 9 | 8.2 |
| 1983 | 8 | 8.2 |
| 1984 | 8 | 8.2 |
| 1985 | 6 | 8.2 |
| 1986 | 7 | 8.2 |
| 1987 | 7 | 8.2 |
| 1988 | 11 | 8.2 |
| 1989 | 7 | 8.2 |
| 2022 | 9 | 10.3 |
| 2023 | 9 | 10.3 |
| 2024 | 16 | 10.3 |
| 2025 | 7 | 10.3 |
| Year | First date | Last date |
|---|---|---|
| 1907 | 1907-01-17 | 1907-12-26 |
| 1908 | 1908-02-12 | 1908-11-12 |
| 1909 | 1909-02-17 | 1909-06-15 |
| 1910 | 1910-02-15 | 1910-06-06 |
| 1911 | 1911-01-23 | 1911-08-14 |
| 1912 | 1912-02-01 | 1912-03-23 |
| 1913 | 1913-01-04 | 1913-12-31 |
| 1914 | 1914-01-01 | 1914-12-31 |
| 1915 | 1915-01-05 | 1915-12-19 |
| 1916 | 1916-03-06 | 1916-12-29 |
| 1917 | 1917-01-11 | 1917-12-06 |
| 1918 | 1918-01-01 | 1918-12-06 |
| 1919 | 1919-01-31 | 1919-12-09 |
| 1920 | 1920-04-06 | 1920-12-01 |
| 1921 | 1921-01-15 | 1921-12-08 |
| 1922 | 1922-02-24 | 1922-05-29 |
| 1923 | 1923-01-04 | 1923-12-22 |
| 1924 | 1924-06-09 | 1924-06-09 |
| 1925 | 1925-01-17 | 1925-12-27 |
| 1926 | 1926-01-02 | 1926-11-30 |
| 1927 | 1927-01-01 | 1927-12-20 |
| 1928 | 1928-02-12 | 1928-12-29 |
| 1929 | 1929-02-12 | 1929-06-01 |
| 1931 | 1931-01-13 | 1931-11-05 |
| 1932 | 1932-01-15 | 1932-12-13 |
| 1933 | 1933-02-09 | 1933-12-08 |
| 1934 | 1934-01-30 | 1934-11-16 |
| 1935 | 1935-01-17 | 1935-03-15 |
| 1936 | 1936-01-09 | 1936-12-29 |
| 1937 | 1937-01-06 | 1937-11-17 |
| 1938 | 1938-01-11 | 1938-12-21 |
| 1939 | 1939-01-12 | 1939-06-28 |
| 1940 | 1940-01-03 | 1940-12-31 |
| 1941 | 1941-02-27 | 1941-12-15 |
| 1942 | 1942-01-05 | 1942-11-26 |
| 1943 | 1943-01-13 | 1943-04-21 |
| 1944 | 1944-04-06 | 1944-04-06 |
| 1945 | 1945-01-02 | 1945-03-08 |
| 1946 | 1946-01-05 | 1946-07-13 |
| 1947 | 1947-02-23 | 1947-12-31 |
| 1948 | 1948-02-19 | 1948-04-23 |
| 1949 | 1949-02-13 | 1949-12-07 |
| 1950 | 1950-01-20 | 1950-06-04 |
| 1951 | 1951-01-18 | 1951-06-08 |
| 1963 | 1963-01-11 | 1963-12-17 |
| 1964 | 1964-02-16 | 1964-11-07 |
| 1965 | 1965-03-12 | 1965-11-25 |
| 1966 | 1966-01-02 | 1966-04-30 |
| 1967 | 1967-01-16 | 1967-12-20 |
| 1968 | 1968-02-01 | 1968-07-09 |
| 1969 | 1969-01-27 | 1969-10-22 |
| 1970 | 1970-05-01 | 1970-12-25 |
| 1971 | 1971-01-17 | 1971-08-01 |
| 1972 | 1972-01-03 | 1972-12-23 |
| 1973 | 1973-01-23 | 1973-12-26 |
| 1974 | 1974-01-14 | 1974-07-29 |
| 1975 | 1975-03-21 | 1975-12-17 |
| 1976 | 1976-01-05 | 1976-04-20 |
| 1977 | 1977-01-12 | 1977-03-26 |
| 1978 | 1978-01-21 | 1978-11-15 |
| 1980 | 1980-01-31 | 1980-11-20 |
| 1981 | 1981-01-16 | 1981-02-25 |
| 1982 | 1982-02-01 | 1982-12-16 |
| 1983 | 1983-01-10 | 1983-12-01 |
| 1984 | 1984-03-01 | 1984-12-04 |
| 1985 | 1985-02-01 | 1985-04-27 |
| 1986 | 1986-02-01 | 1986-12-22 |
| 1987 | 1987-01-15 | 1987-12-21 |
| 1988 | 1988-01-26 | 1988-12-19 |
| 1989 | 1989-02-25 | 1989-12-29 |
| 2022 | 2022-01-18 | 2022-09-04 |
| 2023 | 2023-01-15 | 2023-06-19 |
| 2024 | 2024-01-24 | 2024-12-15 |
| 2025 | 2025-01-06 | 2025-12-13 |
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 | 74 | 17 | 1942 | 7 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 66 | 8 | 1925 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 33 | 5 | 1947 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 1 | 1945 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.
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).