Ewa Plantation 741 Threshold Days by Year
9 fixed thresholds counted per year at Ewa Plantation 741 (USC00510507): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Ewa Plantation 741 Thresholds
- Ewa Plantation 741: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 1940 with 219.
- Ewa Plantation 741: nights with a minimum temperature at or above 20 C (68 F) in 58 years, most in 1968 with 194.
- Ewa Plantation 741: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1918 with 28.
- Ewa Plantation 741: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1951 with 14.
- 9 fixed thresholds have at least one qualifying day at Ewa Plantation 741.
Days at or above 30 C (86 F)
58 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1912 | 128 | 108.4 |
| 1913 | 139 | 108.4 |
| 1914 | 126 | 108.4 |
| 1915 | 143 | 108.4 |
| 1916 | 10 | 108.4 |
| 1917 | 96 | 108.4 |
| 1918 | 104 | 108.4 |
| 1919 | 121 | 108.4 |
| 1920 | 117 | 129 |
| 1921 | 124 | 129 |
| 1922 | 111 | 129 |
| 1923 | 161 | 129 |
| 1924 | 133 | 129 |
| 1925 | 117 | 129 |
| 1926 | 139 | 129 |
| 1927 | 117 | 129 |
| 1928 | 123 | 129 |
| 1929 | 148 | 129 |
| 1930 | 157 | 130.9 |
| 1931 | 85 | 130.9 |
| 1932 | 83 | 130.9 |
| 1933 | 18 | 130.9 |
| 1934 | 173 | 130.9 |
| 1935 | 183 | 130.9 |
| 1936 | 156 | 130.9 |
| 1937 | 153 | 130.9 |
| 1938 | 170 | 130.9 |
| 1940 | 219 | 166.6 |
| 1941 | 188 | 166.6 |
| 1942 | 176 | 166.6 |
| 1943 | 193 | 166.6 |
| 1944 | 131 | 166.6 |
| 1945 | 203 | 166.6 |
| 1946 | 156 | 166.6 |
| 1947 | 140 | 166.6 |
| 1948 | 138 | 166.6 |
| 1949 | 122 | 166.6 |
| 1950 | 144 | 154.6 |
| 1951 | 171 | 154.6 |
| 1952 | 139 | 154.6 |
| 1953 | 174 | 154.6 |
| 1954 | 180 | 154.6 |
| 1955 | 103 | 154.6 |
| 1956 | 125 | 154.6 |
| 1957 | 176 | 154.6 |
| 1958 | 151 | 154.6 |
| 1959 | 183 | 154.6 |
| 1960 | 165 | 159.6 |
| 1961 | 197 | 159.6 |
| 1962 | 170 | 159.6 |
| 1963 | 190 | 159.6 |
| 1964 | 132 | 159.6 |
| 1965 | 157 | 159.6 |
| 1966 | 153 | 159.6 |
| 1967 | 164 | 159.6 |
| 1968 | 178 | 159.6 |
| 1969 | 90 | 159.6 |
| 1970 | 74 | 74 |
| Year | First date | Last date |
|---|---|---|
| 1912 | 1912-01-23 | 1912-10-23 |
| 1913 | 1913-05-18 | 1913-11-20 |
| 1914 | 1914-04-14 | 1914-11-03 |
| 1915 | 1915-04-05 | 1915-10-27 |
| 1916 | 1916-06-23 | 1916-10-13 |
| 1917 | 1917-06-17 | 1917-10-28 |
| 1918 | 1918-01-14 | 1918-11-20 |
| 1919 | 1919-05-09 | 1919-11-30 |
| 1920 | 1920-05-07 | 1920-11-05 |
| 1921 | 1921-03-11 | 1921-12-10 |
| 1922 | 1922-06-01 | 1922-12-19 |
| 1923 | 1923-05-13 | 1923-11-04 |
| 1924 | 1924-05-19 | 1924-12-09 |
| 1925 | 1925-01-30 | 1925-11-04 |
| 1926 | 1926-05-19 | 1926-11-13 |
| 1927 | 1927-05-05 | 1927-10-21 |
| 1928 | 1928-05-20 | 1928-10-15 |
| 1929 | 1929-04-23 | 1929-10-31 |
| 1930 | 1930-05-22 | 1930-11-23 |
| 1931 | 1931-06-05 | 1931-10-18 |
| 1932 | 1932-03-26 | 1932-10-18 |
| 1933 | 1933-07-18 | 1933-11-08 |
| 1934 | 1934-03-17 | 1934-12-14 |
| 1935 | 1935-03-21 | 1935-12-27 |
| 1936 | 1936-02-23 | 1936-11-16 |
| 1937 | 1937-02-19 | 1937-12-05 |
| 1938 | 1938-02-01 | 1938-12-06 |
| 1940 | 1940-03-03 | 1940-12-22 |
| 1941 | 1941-01-03 | 1941-12-22 |
| 1942 | 1942-01-17 | 1942-11-28 |
| 1943 | 1943-01-30 | 1943-11-10 |
| 1944 | 1944-01-24 | 1944-11-04 |
| 1945 | 1945-02-23 | 1945-12-02 |
| 1946 | 1946-05-05 | 1946-11-28 |
| 1947 | 1947-03-08 | 1947-11-20 |
| 1948 | 1948-02-23 | 1948-10-19 |
| 1949 | 1949-05-05 | 1949-12-27 |
| 1950 | 1950-04-27 | 1950-11-24 |
| 1951 | 1951-03-29 | 1951-11-26 |
| 1952 | 1952-05-21 | 1952-12-09 |
| 1953 | 1953-01-17 | 1953-11-22 |
| 1954 | 1954-01-24 | 1954-11-26 |
| 1955 | 1955-01-06 | 1955-12-29 |
| 1956 | 1956-01-28 | 1956-12-31 |
| 1957 | 1957-04-18 | 1957-11-30 |
| 1958 | 1958-04-11 | 1958-11-29 |
| 1959 | 1959-01-25 | 1959-12-05 |
| 1960 | 1960-03-17 | 1960-11-08 |
| 1961 | 1961-03-04 | 1961-12-16 |
| 1962 | 1962-04-06 | 1962-11-13 |
| 1963 | 1963-02-26 | 1963-12-18 |
| 1964 | 1964-01-28 | 1964-11-02 |
| 1965 | 1965-04-17 | 1965-11-17 |
| 1966 | 1966-04-29 | 1966-12-02 |
| 1967 | 1967-04-24 | 1967-11-19 |
| 1968 | 1968-03-06 | 1968-12-11 |
| 1969 | 1969-06-04 | 1969-11-12 |
| 1970 | 1970-05-06 | 1970-10-20 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 58 | 219 | 1940 | 74 |
| 90 F (32.2 C): Days | 42 | 80 | 1943 | 22 |
| 20 C (68 F): Tropical nights (min | 58 | 194 | 1968 | 148 |
| 25 C (77 F): Days with min | 2 | 1 | 1914 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 52 | 28 | 1918 | 17 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 52 | 14 | 1951 | 13 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 44 | 6 | 1965 | 4 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 18 | 3 | 1965 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 4 | 1 | 1917 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.
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).