Hilton Head Threshold Days by Year (USC00384169)
14 fixed thresholds counted per year at Hilton Head (USC00384169): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Hilton Head Thresholds
- Hilton Head: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1975 with 51.
- Hilton Head: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1975 with 25.
- Hilton Head: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 1977 with 119.
- Hilton Head: days with a maximum temperature at or above 90 F (32.2 C) in 39 years, most in 1980 with 76.
- 14 fixed thresholds have at least one qualifying day at Hilton Head.
Days at or above 30 C (86 F)
39 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1954 | 113 | 98.3 |
| 1955 | 95 | 98.3 |
| 1956 | 101 | 98.3 |
| 1957 | 85 | 98.3 |
| 1958 | 95 | 98.3 |
| 1959 | 101 | 98.3 |
| 1960 | 104 | 92 |
| 1961 | 92 | 92 |
| 1962 | 108 | 92 |
| 1963 | 91 | 92 |
| 1964 | 85 | 92 |
| 1965 | 93 | 92 |
| 1967 | 84 | 92 |
| 1969 | 79 | 92 |
| 1970 | 102 | 90.2 |
| 1971 | 88 | 90.2 |
| 1972 | 76 | 90.2 |
| 1974 | 77 | 90.2 |
| 1975 | 97 | 90.2 |
| 1976 | 71 | 90.2 |
| 1977 | 119 | 90.2 |
| 1978 | 104 | 90.2 |
| 1979 | 78 | 90.2 |
| 1980 | 119 | 92.3 |
| 1981 | 103 | 92.3 |
| 1982 | 91 | 92.3 |
| 1983 | 89 | 92.3 |
| 1984 | 84 | 92.3 |
| 1985 | 103 | 92.3 |
| 1988 | 74 | 92.3 |
| 1989 | 75 | 92.3 |
| 1990 | 102 | 82.3 |
| 1991 | 86 | 82.3 |
| 1992 | 81 | 82.3 |
| 1993 | 97 | 82.3 |
| 1994 | 58 | 82.3 |
| 1995 | 65 | 82.3 |
| 1996 | 90 | 82.3 |
| 1997 | 79 | 82.3 |
| Year | First date | Last date |
|---|---|---|
| 1954 | 1954-03-31 | 1954-10-13 |
| 1955 | 1955-03-12 | 1955-10-01 |
| 1956 | 1956-05-01 | 1956-10-07 |
| 1957 | 1957-05-19 | 1957-09-23 |
| 1958 | 1958-04-24 | 1958-10-01 |
| 1959 | 1959-04-20 | 1959-10-11 |
| 1960 | 1960-05-17 | 1960-10-11 |
| 1961 | 1961-03-30 | 1961-11-01 |
| 1962 | 1962-04-23 | 1962-10-22 |
| 1963 | 1963-03-18 | 1963-10-28 |
| 1964 | 1964-04-19 | 1964-09-30 |
| 1965 | 1965-04-07 | 1965-09-24 |
| 1967 | 1967-03-11 | 1967-10-05 |
| 1969 | 1969-04-03 | 1969-09-18 |
| 1970 | 1970-04-21 | 1970-10-03 |
| 1971 | 1971-04-13 | 1971-10-04 |
| 1972 | 1972-04-13 | 1972-11-04 |
| 1974 | 1974-03-09 | 1974-09-29 |
| 1975 | 1975-04-28 | 1975-10-12 |
| 1976 | 1976-04-18 | 1976-09-28 |
| 1977 | 1977-03-15 | 1977-10-03 |
| 1978 | 1978-04-02 | 1978-10-06 |
| 1979 | 1979-05-19 | 1979-09-21 |
| 1980 | 1980-04-23 | 1980-10-12 |
| 1981 | 1981-04-13 | 1981-10-06 |
| 1982 | 1982-03-17 | 1982-10-10 |
| 1983 | 1983-05-31 | 1983-10-12 |
| 1984 | 1984-04-26 | 1984-10-19 |
| 1985 | 1985-03-09 | 1985-10-17 |
| 1988 | 1988-04-05 | 1988-09-25 |
| 1989 | 1989-04-23 | 1989-10-07 |
| 1990 | 1990-04-30 | 1990-10-15 |
| 1991 | 1991-04-28 | 1991-09-23 |
| 1992 | 1992-04-24 | 1992-09-27 |
| 1993 | 1993-05-17 | 1993-09-27 |
| 1994 | 1994-05-12 | 1994-09-29 |
| 1995 | 1995-04-19 | 1995-09-26 |
| 1996 | 1996-05-05 | 1996-09-27 |
| 1997 | 1997-03-23 | 1997-10-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 39 | 119 | 1977 | 79 |
| 35 C (95 F): Days | 35 | 27 | 1981 | 8 |
| 90 F (32.2 C): Days | 39 | 76 | 1980 | 19 |
| 100 F (37.8 C): Days | 6 | 5 | 1983 | 2 |
| 0 C (32 F): Ice days (max | 4 | 1 | 1970 | 1 |
| 0 C (32 F): Frost days (min | 39 | 47 | 1977 | 10 |
| -10 C (14 F): Days with min | 7 | 2 | 1983 | 1 |
| 20 C (68 F): Tropical nights (min | 39 | 130 | 1995 | 56 |
| 25 C (77 F): Days with min | 37 | 16 | 1983 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 40 | 51 | 1975 | 43 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 40 | 25 | 1975 | 23 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 38 | 11 | 1964 | 5 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 16 | 3 | 1978 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 2 | 1994 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.
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).