Naalehu 14 Threshold Days by Year
10 fixed thresholds counted per year at Naalehu 14 (USC00516588): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Naalehu 14 Thresholds
- Naalehu 14: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1935 with 49.
- Naalehu 14: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1937 with 21.
- Naalehu 14: days with 50 mm (1.97 in) or more of precipitation in 51 years, most in 1927 with 11.
- Naalehu 14: nights with a minimum temperature at or above 20 C (68 F) in 36 years, most in 1921 with 283.
- 10 fixed thresholds have at least one qualifying day at Naalehu 14.
Days at or above 30 C (86 F)
29 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1915 | 1 | 1 |
| 1921 | 3 | 64.5 |
| 1922 | 126 | 64.5 |
| 1957 | 2 | 4.7 |
| 1958 | 4 | 4.7 |
| 1959 | 8 | 4.7 |
| 1960 | 3 | 6.4 |
| 1961 | 9 | 6.4 |
| 1962 | 5 | 6.4 |
| 1963 | 4 | 6.4 |
| 1964 | 9 | 6.4 |
| 1965 | 5 | 6.4 |
| 1966 | 6 | 6.4 |
| 1968 | 10 | 6.4 |
| 1978 | 3 | 5 |
| 1979 | 7 | 5 |
| 1980 | 10 | 7.7 |
| 1981 | 3 | 7.7 |
| 1982 | 5 | 7.7 |
| 1983 | 10 | 7.7 |
| 1984 | 4 | 7.7 |
| 1985 | 10 | 7.7 |
| 1986 | 17 | 7.7 |
| 1987 | 5 | 7.7 |
| 1988 | 5 | 7.7 |
| 1991 | 11 | 8.8 |
| 1992 | 18 | 8.8 |
| 1993 | 5 | 8.8 |
| 1994 | 1 | 8.8 |
| Year | First date | Last date |
|---|---|---|
| 1915 | 1915-05-05 | 1915-05-05 |
| 1921 | 1921-08-15 | 1921-10-05 |
| 1922 | 1922-03-25 | 1922-10-13 |
| 1957 | 1957-07-26 | 1957-09-21 |
| 1958 | 1958-08-02 | 1958-10-23 |
| 1959 | 1959-02-14 | 1959-08-05 |
| 1960 | 1960-07-21 | 1960-10-03 |
| 1961 | 1961-08-05 | 1961-10-18 |
| 1962 | 1962-07-28 | 1962-12-11 |
| 1963 | 1963-01-30 | 1963-11-19 |
| 1964 | 1964-07-15 | 1964-10-19 |
| 1965 | 1965-09-07 | 1965-10-22 |
| 1966 | 1966-05-18 | 1966-09-12 |
| 1968 | 1968-05-12 | 1968-10-02 |
| 1978 | 1978-01-08 | 1978-04-22 |
| 1979 | 1979-03-29 | 1979-12-17 |
| 1980 | 1980-02-18 | 1980-12-22 |
| 1981 | 1981-02-13 | 1981-09-20 |
| 1982 | 1982-02-13 | 1982-11-29 |
| 1983 | 1983-03-12 | 1983-12-17 |
| 1984 | 1984-03-04 | 1984-07-26 |
| 1985 | 1985-06-25 | 1985-11-20 |
| 1986 | 1986-02-13 | 1986-09-22 |
| 1987 | 1987-04-27 | 1987-09-28 |
| 1988 | 1988-08-03 | 1988-10-27 |
| 1991 | 1991-01-29 | 1991-09-16 |
| 1992 | 1992-02-15 | 1992-11-03 |
| 1993 | 1993-03-15 | 1993-11-15 |
| 1994 | 1994-08-31 | 1994-08-31 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 29 | 126 | 1922 | 1 |
| 35 C (95 F): Days | 2 | 1 | 1922 | 1 |
| 90 F (32.2 C): Days | 11 | 54 | 1922 | 3 |
| 20 C (68 F): Tropical nights (min | 36 | 283 | 1921 | 123 |
| 25 C (77 F): Days with min | 3 | 4 | 1919 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 56 | 49 | 1935 | 39 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 56 | 21 | 1937 | 16 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 51 | 11 | 1927 | 8 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 31 | 4 | 1937 | 4 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 9 | 3 | 1946 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.
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 (2026-10-16).