Hana AP 355 Threshold Days by Year (USC00511125)
9 fixed thresholds counted per year at Hana AP 355 (USC00511125): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Hana AP 355 Thresholds
- Hana AP 355: nights with a minimum temperature at or above 20 C (68 F) in 54 years, most in 2020 with 295.
- Hana AP 355: days with a maximum temperature at or above 30 C (86 F) in 49 years, most in 1968 with 128.
- Hana AP 355: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1982 with 77.
- Hana AP 355: days with 25 mm (0.98 in) or more of precipitation in 49 years, most in 1965 with 28.
- 9 fixed thresholds have at least one qualifying day at Hana AP 355.
Days at or above 30 C (86 F)
49 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1951 | 3 | 14.1 |
| 1952 | 1 | 14.1 |
| 1953 | 5 | 14.1 |
| 1954 | 2 | 14.1 |
| 1956 | 10 | 14.1 |
| 1957 | 52 | 14.1 |
| 1958 | 11 | 14.1 |
| 1959 | 29 | 14.1 |
| 1960 | 10 | 38.6 |
| 1961 | 10 | 38.6 |
| 1962 | 41 | 38.6 |
| 1963 | 35 | 38.6 |
| 1964 | 16 | 38.6 |
| 1965 | 18 | 38.6 |
| 1966 | 40 | 38.6 |
| 1967 | 78 | 38.6 |
| 1968 | 128 | 38.6 |
| 1969 | 10 | 38.6 |
| 1970 | 20 | 18.3 |
| 1971 | 38 | 18.3 |
| 1972 | 25 | 18.3 |
| 1975 | 1 | 18.3 |
| 1977 | 5 | 18.3 |
| 1978 | 8 | 18.3 |
| 1979 | 31 | 18.3 |
| 1980 | 6 | 12.3 |
| 1981 | 32 | 12.3 |
| 1982 | 18 | 12.3 |
| 1983 | 3 | 12.3 |
| 1984 | 33 | 12.3 |
| 1985 | 5 | 12.3 |
| 1986 | 11 | 12.3 |
| 1987 | 13 | 12.3 |
| 1988 | 1 | 12.3 |
| 1989 | 1 | 12.3 |
| 1990 | 2 | 2.3 |
| 1991 | 1 | 2.3 |
| 1992 | 4 | 2.3 |
| 1993 | 1 | 2.3 |
| 1994 | 1 | 2.3 |
| 1995 | 2 | 2.3 |
| 1996 | 5 | 2.3 |
| 1997 | 4 | 2.3 |
| 1998 | 1 | 2.3 |
| 2000 | 21 | 12 |
| 2002 | 3 | 12 |
| 2018 | 3 | 4.5 |
| 2019 | 6 | 4.5 |
| 2020 | 1 | 1 |
| Year | First date | Last date |
|---|---|---|
| 1951 | 1951-07-02 | 1951-09-23 |
| 1952 | 1952-10-17 | 1952-10-17 |
| 1953 | 1953-09-16 | 1953-09-27 |
| 1954 | 1954-09-29 | 1954-10-01 |
| 1956 | 1956-01-14 | 1956-09-26 |
| 1957 | 1957-06-03 | 1957-12-03 |
| 1958 | 1958-06-21 | 1958-10-06 |
| 1959 | 1959-05-22 | 1959-08-24 |
| 1960 | 1960-07-20 | 1960-10-02 |
| 1961 | 1961-01-18 | 1961-10-20 |
| 1962 | 1962-06-03 | 1962-09-15 |
| 1963 | 1963-01-17 | 1963-11-05 |
| 1964 | 1964-06-04 | 1964-10-04 |
| 1965 | 1965-05-10 | 1965-10-21 |
| 1966 | 1966-05-05 | 1966-09-26 |
| 1967 | 1967-05-18 | 1967-12-25 |
| 1968 | 1968-02-16 | 1968-11-21 |
| 1969 | 1969-06-15 | 1969-06-26 |
| 1970 | 1970-08-04 | 1970-10-04 |
| 1971 | 1971-06-15 | 1971-10-10 |
| 1972 | 1972-03-24 | 1972-10-31 |
| 1975 | 1975-04-14 | 1975-04-14 |
| 1977 | 1977-02-01 | 1977-12-17 |
| 1978 | 1978-01-29 | 1978-10-02 |
| 1979 | 1979-04-13 | 1979-11-25 |
| 1980 | 1980-02-25 | 1980-12-26 |
| 1981 | 1981-01-18 | 1981-11-16 |
| 1982 | 1982-07-18 | 1982-12-04 |
| 1983 | 1983-01-25 | 1983-12-16 |
| 1984 | 1984-06-20 | 1984-11-01 |
| 1985 | 1985-06-16 | 1985-12-17 |
| 1986 | 1986-01-20 | 1986-10-01 |
| 1987 | 1987-08-24 | 1987-10-18 |
| 1988 | 1988-09-05 | 1988-09-05 |
| 1989 | 1989-10-14 | 1989-10-14 |
| 1990 | 1990-04-23 | 1990-08-22 |
| 1991 | 1991-06-11 | 1991-06-11 |
| 1992 | 1992-05-18 | 1992-09-13 |
| 1993 | 1993-08-06 | 1993-08-06 |
| 1994 | 1994-08-13 | 1994-08-13 |
| 1995 | 1995-12-10 | 1995-12-23 |
| 1996 | 1996-07-07 | 1996-09-13 |
| 1997 | 1997-08-15 | 1997-09-27 |
| 1998 | 1998-08-01 | 1998-08-01 |
| 2000 | 2000-06-04 | 2000-12-28 |
| 2002 | 2002-11-09 | 2002-11-12 |
| 2018 | 2018-09-25 | 2018-09-27 |
| 2019 | 2019-06-27 | 2019-09-23 |
| 2020 | 2020-10-23 | 2020-10-23 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 49 | 128 | 1968 | 1 |
| 90 F (32.2 C): Days | 6 | 2 | 1963 | 2 |
| 20 C (68 F): Tropical nights (min | 54 | 295 | 2020 | 59 |
| 25 C (77 F): Days with min | 25 | 10 | 1967 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 49 | 77 | 1982 | 22 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 49 | 28 | 1965 | 12 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 49 | 13 | 1965 | 9 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 33 | 5 | 1965 | 5 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 9 | 2 | 1989 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.
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 (2026-10-15).