James Island Threshold Days by Year (CA001013720)
13 fixed thresholds counted per year at James Island (CA001013720): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for James Island Thresholds
- James Island: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1934 with 32.
- James Island: nights with a minimum temperature at or below 0 C (32 F) in 63 years, most in 1927 with 67.
- James Island: days with 25 mm (0.98 in) or more of precipitation in 61 years, most in 1975 with 9.
- James Island: days with a maximum temperature at or below 0 C (32 F) in 48 years, most in 1950 with 22.
- 13 fixed thresholds have at least one qualifying day at James Island.
Days at or above 30 C (86 F)
39 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1915 | 4 | 2.5 |
| 1916 | 1 | 2.5 |
| 1920 | 6 | 3.9 |
| 1922 | 1 | 3.9 |
| 1923 | 1 | 3.9 |
| 1924 | 1 | 3.9 |
| 1925 | 6 | 3.9 |
| 1926 | 5 | 3.9 |
| 1927 | 8 | 3.9 |
| 1928 | 5 | 3.9 |
| 1929 | 2 | 3.9 |
| 1930 | 4 | 3 |
| 1931 | 5 | 3 |
| 1932 | 2 | 3 |
| 1933 | 3 | 3 |
| 1934 | 3 | 3 |
| 1935 | 3 | 3 |
| 1938 | 2 | 3 |
| 1939 | 2 | 3 |
| 1940 | 1 | 3.4 |
| 1941 | 4 | 3.4 |
| 1942 | 8 | 3.4 |
| 1944 | 3 | 3.4 |
| 1945 | 1 | 3.4 |
| 1951 | 3 | 3.2 |
| 1952 | 3 | 3.2 |
| 1956 | 1 | 3.2 |
| 1958 | 8 | 3.2 |
| 1959 | 1 | 3.2 |
| 1960 | 5 | 2.8 |
| 1961 | 3 | 2.8 |
| 1965 | 4 | 2.8 |
| 1968 | 1 | 2.8 |
| 1969 | 1 | 2.8 |
| 1971 | 4 | 2.4 |
| 1972 | 1 | 2.4 |
| 1973 | 1 | 2.4 |
| 1974 | 2 | 2.4 |
| 1977 | 4 | 2.4 |
| Year | First date | Last date |
|---|---|---|
| 1915 | 1915-07-01 | 1915-08-21 |
| 1916 | 1916-08-24 | 1916-08-24 |
| 1920 | 1920-07-07 | 1920-08-14 |
| 1922 | 1922-07-02 | 1922-07-02 |
| 1923 | 1923-08-16 | 1923-08-16 |
| 1924 | 1924-07-24 | 1924-07-24 |
| 1925 | 1925-05-16 | 1925-08-20 |
| 1926 | 1926-06-24 | 1926-07-13 |
| 1927 | 1927-07-17 | 1927-08-18 |
| 1928 | 1928-07-12 | 1928-08-11 |
| 1929 | 1929-08-02 | 1929-08-11 |
| 1930 | 1930-08-11 | 1930-09-03 |
| 1931 | 1931-06-06 | 1931-08-09 |
| 1932 | 1932-06-11 | 1932-06-12 |
| 1933 | 1933-08-15 | 1933-08-26 |
| 1934 | 1934-07-24 | 1934-08-25 |
| 1935 | 1935-07-13 | 1935-08-28 |
| 1938 | 1938-07-14 | 1938-07-24 |
| 1939 | 1939-08-08 | 1939-08-09 |
| 1940 | 1940-08-18 | 1940-08-18 |
| 1941 | 1941-07-14 | 1941-07-17 |
| 1942 | 1942-06-30 | 1942-08-15 |
| 1944 | 1944-06-09 | 1944-08-30 |
| 1945 | 1945-08-06 | 1945-08-06 |
| 1951 | 1951-06-29 | 1951-07-12 |
| 1952 | 1952-07-08 | 1952-08-03 |
| 1956 | 1956-07-19 | 1956-07-19 |
| 1958 | 1958-07-06 | 1958-08-11 |
| 1959 | 1959-07-31 | 1959-07-31 |
| 1960 | 1960-07-06 | 1960-08-09 |
| 1961 | 1961-07-11 | 1961-08-03 |
| 1965 | 1965-07-29 | 1965-08-01 |
| 1968 | 1968-07-02 | 1968-07-02 |
| 1969 | 1969-06-17 | 1969-06-17 |
| 1971 | 1971-07-26 | 1971-08-10 |
| 1972 | 1972-08-07 | 1972-08-07 |
| 1973 | 1973-07-17 | 1973-07-17 |
| 1974 | 1974-08-28 | 1974-08-29 |
| 1977 | 1977-08-10 | 1977-08-17 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 39 | 8 | 1927 | 4 |
| 35 C (95 F): Days | 2 | 1 | 1941 | 1 |
| 90 F (32.2 C): Days | 17 | 4 | 1941 | 2 |
| 0 C (32 F): Ice days (max | 48 | 22 | 1950 | 1 |
| 0 C (32 F): Frost days (min | 63 | 67 | 1927 | 17 |
| -10 C (14 F): Days with min | 12 | 5 | 1950 | 1 |
| 20 C (68 F): Tropical nights (min | 3 | 2 | 1941 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 64 | 32 | 1934 | 24 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 61 | 9 | 1975 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 10 | 2 | 1935 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1935 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 32 | 6 | 1916 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 4 | 3 | 1916 | 1 |
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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-17).