James Island Weather Records (CA001013720)
Record envelope, standing records and threshold days for James Island (CA001013720), British Columbia, Canada, with 65 years of record.
Key Facts for James Island
- James Island (CA001013720) is a weather station in British Columbia, Canada at 48.60 latitude and -123.35 longitude, 54 m (177 ft) above sea level.
- The station reports from 1914 to 1978, 65 years of record.
- 1,464 records set at James Island still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- James Island tied a daily record high minimum temperature of 12.2 C (54.0 F) on 30 September 1978.
About the Station
- Location: British Columbia, Canada, 48.60 latitude, -123.35 longitude.
- Elevation: 54 m (177 ft).
- Period of record: 1914 to 1978, 65 years.
- Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 13.9 C (57.0 F) | -13.9 C (7.0 F) | n/a | n/a |
| Feb | 15.6 C (60.1 F) | -13.3 C (8.1 F) | n/a | n/a |
| Mar | 18.9 C (66.0 F) | -7.8 C (18.0 F) | n/a | n/a |
| Apr | 25.6 C (78.1 F) | -2.2 C (28.0 F) | n/a | n/a |
| May | 30.0 C (86.0 F) | 0.6 C (33.1 F) | n/a | n/a |
| Jun | 33.9 C (93.0 F) | 3.3 C (37.9 F) | n/a | n/a |
| Jul | 35.0 C (95.0 F) | 4.4 C (39.9 F) | n/a | n/a |
| Aug | 34.4 C (93.9 F) | 4.4 C (39.9 F) | n/a | n/a |
| Sep | 31.1 C (88.0 F) | 2.2 C (36.0 F) | n/a | n/a |
| Oct | 25.6 C (78.1 F) | -1.7 C (28.9 F) | n/a | n/a |
| Nov | 17.2 C (63.0 F) | -10.0 C (14.0 F) | n/a | n/a |
| Dec | 13.9 C (57.0 F) | -13.9 C (7.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1914 | 35 |
| 1915 | 23 |
| 1916 | 25 |
| 1917 | 31 |
| 1918 | 26 |
| 1919 | 27 |
| 1920 | 15 |
| 1921 | 26 |
| 1922 | 18 |
| 1923 | 16 |
| 1924 | 26 |
| 1925 | 21 |
| 1926 | 39 |
| 1927 | 42 |
| 1928 | 47 |
| 1929 | 23 |
| 1930 | 24 |
| 1931 | 27 |
| 1932 | 33 |
| 1933 | 23 |
| 1934 | 36 |
| 1935 | 52 |
| 1936 | 36 |
| 1937 | 16 |
| 1938 | 14 |
| 1939 | 15 |
| 1940 | 27 |
| 1941 | 31 |
| 1942 | 21 |
| 1943 | 21 |
| 1944 | 20 |
| 1945 | 23 |
| 1946 | 15 |
| 1947 | 15 |
| 1948 | 14 |
| 1949 | 27 |
| 1950 | 51 |
| 1951 | 23 |
| 1952 | 23 |
| 1953 | 11 |
| 1954 | 16 |
| 1955 | 33 |
| 1956 | 24 |
| 1957 | 8 |
| 1958 | 35 |
| 1959 | 10 |
| 1960 | 17 |
| 1961 | 17 |
| 1962 | 14 |
| 1963 | 25 |
| 1964 | 10 |
| 1965 | 19 |
| 1966 | 11 |
| 1967 | 4 |
| 1968 | 23 |
| 1969 | 16 |
| 1970 | 10 |
| 1971 | 16 |
| 1972 | 31 |
| 1973 | 15 |
| 1974 | 15 |
| 1975 | 12 |
| 1976 | 17 |
| 1977 | 17 |
| 1978 | 11 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1950-01-13 | Record low maximum temperature | Record low maximum temperature -10.6 C (12.9 F) |
| 1968-12-29 | Record low maximum temperature | Record low maximum temperature -11.1 C (12.0 F) |
Wettest Day of Each Month
Jan: 101.9 mm (4.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 101.9 mm (4.0 in) | 21 January 1935 |
| Feb | 51.8 mm (2.0 in) | 11 February 1924 |
| Mar | 45.5 mm (1.8 in) | 21 March 1948 |
| Apr | 33.3 mm (1.3 in) | 8 April 1970 |
| May | 41.1 mm (1.6 in) | 27 May 1948 |
| Jun | 33.8 mm (1.3 in) | 13 June 1946 |
| Jul | 29.5 mm (1.2 in) | 9 July 1932 |
| Aug | 49.0 mm (1.9 in) | 22 August 1975 |
| Sep | 30.5 mm (1.2 in) | 26 September 1940 |
| Oct | 48.5 mm (1.9 in) | 16 October 1975 |
| Nov | 76.5 mm (3.0 in) | 2 November 1955 |
| Dec | 66.0 mm (2.6 in) | 27 December 1937 |
Period of Record Coverage
1914 to 1978| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1914 | 303 | 83% | No |
| 1915 | 365 | 100% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 363 | 99% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 361 | 99% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 362 | 99% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 364 | 99% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 273 | 75% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 30 September 1978 | James Island, CA | daily high min (Tie) | 12.2 C (54.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 18 September 1978 | James Island, CA | daily low min (Tie) | 6.7 C (44.1 F) | tie | 52 years | 5 of 100 (Routine) |
| 14 August 1978 | James Island, CA | daily low max (Tie) | 14.4 C (57.9 F) | tie | 28 years | 3 of 100 (Routine) |
| 11 August 1978 | James Island, CA | daily low max | 15.0 C (59.0 F) | 1.1 C (2.0 F) | 32 years | 18 of 100 (Routine) |
| 11 August 1978 | James Island, CA | daily rain | 7.1 mm (0.28 in) | 0.2 mm (0.01 in) | 12 years | 9 of 100 (Routine) |
| 7 August 1978 | James Island, CA | daily high max (Tie) | 30.6 C (87.1 F) | tie | 17 years | 2 of 100 (Routine) |
| 22 July 1978 | James Island, CA | daily high min | 16.7 C (62.1 F) | 1.7 C (3.1 F) | 43 years | 27 of 100 (Routine) |
| 22 July 1978 | James Island, CA | daily high max | 31.1 C (88.0 F) | 2.2 C (4.0 F) | 52 years | 26 of 100 (Routine) |
| 21 July 1978 | James Island, CA | daily high max | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 40 years | 19 of 100 (Routine) |
| 28 June 1978 | James Island, CA | daily high min (Tie) | 14.4 C (57.9 F) | tie | 28 years | 3 of 100 (Routine) |
| 4 June 1978 | James Island, CA | daily high max | 27.8 C (82.0 F) | 1.7 C (3.1 F) | 52 years | 25 of 100 (Routine) |
| 3 June 1978 | James Island, CA | daily high max | 28.9 C (84.0 F) | 2.8 C (5.0 F) | 8 years | 15 of 100 (Routine) |
| 3 June 1978 | James Island, CA | daily high min | 15.6 C (60.1 F) | 0.6 C (1.1 F) | 8 years | 10 of 100 (Routine) |
| 2 June 1978 | James Island, CA | daily high min | 13.9 C (57.0 F) | 1.1 C (2.0 F) | 11 years | 14 of 100 (Routine) |
| 26 April 1978 | James Island, CA | daily high min (Tie) | 11.7 C (53.1 F) | tie | 45 years | 4 of 100 (Routine) |
| 25 April 1978 | James Island, CA | daily high min (Tie) | 10.6 C (51.1 F) | tie | 45 years | 4 of 100 (Routine) |
| 15 April 1978 | James Island, CA | daily rain | 12.7 mm (0.5 in) | 2.0 mm (0.08 in) | 12 years | 14 of 100 (Routine) |
| 23 March 1978 | James Island, CA | daily high min (Tie) | 8.3 C (46.9 F) | tie | 44 years | 4 of 100 (Routine) |
| 22 March 1978 | James Island, CA | daily high min | 7.8 C (46.0 F) | 0.6 C (1.1 F) | 5 years | 9 of 100 (Routine) |
| 18 March 1978 | James Island, CA | daily high min (Tie) | 7.8 C (46.0 F) | tie | 45 years | 4 of 100 (Routine) |
Climate Trend
62 complete years, 1915 to 1977| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1915 | 11.0 C | +1.05 C |
| 1916 | 9.1 C | -0.92 C |
| 1917 | 9.7 C | -0.28 C |
| 1919 | 9.6 C | -0.33 C |
| 1920 | 10.0 C | -0.02 C |
| 1921 | 9.7 C | -0.32 C |
| 1922 | 9.6 C | -0.34 C |
| 1923 | 10.4 C | +0.39 C |
| 1924 | 10.2 C | +0.21 C |
| 1925 | 10.7 C | +0.76 C |
| 1926 | 10.7 C | +0.73 C |
| 1927 | 9.1 C | -0.88 C |
| 1928 | 9.6 C | -0.41 C |
| 1929 | 10.5 C | +0.51 C |
| 1930 | 9.8 C | -0.17 C |
| 1931 | 10.5 C | +0.48 C |
| 1932 | 10.1 C | +0.15 C |
| 1933 | 9.7 C | -0.24 C |
| 1934 | 11.0 C | +1.04 C |
| 1935 | 10.1 C | +0.11 C |
| 1936 | 9.9 C | -0.06 C |
| 1937 | 9.7 C | -0.25 C |
| 1938 | 10.1 C | +0.16 C |
| 1939 | 10.5 C | +0.48 C |
| 1940 | 11.0 C | +1.04 C |
| 1941 | 11.1 C | +1.14 C |
| 1942 | 10.4 C | +0.42 C |
| 1943 | 9.7 C | -0.31 C |
| 1944 | 10.1 C | +0.17 C |
| 1945 | 9.7 C | -0.27 C |
| 1946 | 9.6 C | -0.37 C |
| 1947 | 10.2 C | +0.19 C |
| 1948 | 9.1 C | -0.88 C |
| 1949 | 9.3 C | -0.63 C |
| 1950 | 8.9 C | -1.03 C |
| 1951 | 9.7 C | -0.25 C |
| 1952 | 10.0 C | -0.02 C |
| 1953 | 10.5 C | +0.49 C |
| 1954 | 9.5 C | -0.49 C |
| 1955 | 8.7 C | -1.26 C |
| 1956 | 9.8 C | -0.19 C |
| 1957 | 10.0 C | +0.03 C |
| 1958 | 11.6 C | +1.65 C |
| 1959 | 10.1 C | +0.10 C |
| 1960 | 10.1 C | +0.09 C |
| 1961 | 10.4 C | +0.46 C |
| 1962 | 10.0 C | +0.03 C |
| 1963 | 10.4 C | +0.44 C |
| 1964 | 9.4 C | -0.59 C |
| 1965 | 10.0 C | +0.03 C |
| 1966 | 10.1 C | +0.17 C |
| 1967 | 10.6 C | +0.59 C |
| 1968 | 9.9 C | -0.04 C |
| 1969 | 9.8 C | -0.19 C |
| 1970 | 9.9 C | -0.08 C |
| 1971 | 9.5 C | -0.52 C |
| 1972 | 9.4 C | -0.55 C |
| 1973 | 9.7 C | -0.23 C |
| 1974 | 10.2 C | +0.19 C |
| 1975 | 9.5 C | -0.49 C |
| 1976 | 9.7 C | -0.27 C |
| 1977 | 9.8 C | -0.14 C |
The fitted trend in annual mean temperature here over 1915 to 1977 is -0.04 C (-0.11 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.2 to 0.1) per decade. The slope is a straight line fitted to 62 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.04 C (-0.11 to 0.04) per decade | -0.1 F (-0.2 to 0.1) per decade | 1915 to 1977 | 62 | Not clearly different from zero |
| Mean daily maximum | -0.2 C (-0.3 to -0.1) per decade | -0.3 F (-0.5 to -0.2) per decade | 1915 to 1977 | 62 | Fall |
| Mean daily minimum | 0.11 C (0.03 to 0.19) per decade | 0.2 F (0.1 to 0.3) per decade | 1915 to 1977 | 62 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1914 to 1978| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 35.0 C (95.0 F) | 1941 | 30.6 C (87.1 F) | 65 |
| Coldest night (TNn) | -13.9 C (7.0 F) | 1943 | -6.1 C (21.0 F) | 65 |
| Wettest day (Rx1day) | 101.9 mm (4.0 in) | 1935 | 40.4 mm (1.6 in) | 65 |
| Wettest five days (Rx5day) | 270.8 mm (10.7 in) | 1935 | 72.1 mm (2.8 in) | 65 |
| Longest dry spell (CDD) | 78 days | 1930 | 36 days | 65 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1914 | 29.4 C (84.9 F) |
| 1915 | 32.8 C (91.0 F) |
| 1916 | 30.0 C (86.0 F) |
| 1917 | 27.8 C (82.0 F) |
| 1918 | 28.9 C (84.0 F) |
| 1919 | 28.9 C (84.0 F) |
| 1920 | 31.7 C (89.1 F) |
| 1921 | 26.7 C (80.1 F) |
| 1922 | 32.2 C (90.0 F) |
| 1923 | 30.0 C (86.0 F) |
| 1924 | 32.2 C (90.0 F) |
| 1925 | 33.9 C (93.0 F) |
| 1926 | 32.2 C (90.0 F) |
| 1927 | 32.2 C (90.0 F) |
| 1928 | 31.1 C (88.0 F) |
| 1929 | 30.0 C (86.0 F) |
| 1930 | 32.2 C (90.0 F) |
| 1931 | 32.2 C (90.0 F) |
| 1932 | 30.6 C (87.1 F) |
| 1933 | 30.6 C (87.1 F) |
| 1934 | 30.6 C (87.1 F) |
| 1935 | 34.4 C (93.9 F) |
| 1936 | 28.9 C (84.0 F) |
| 1937 | 27.8 C (82.0 F) |
| 1938 | 31.1 C (88.0 F) |
| 1939 | 31.7 C (89.1 F) |
| 1940 | 30.6 C (87.1 F) |
| 1941 | 35.0 C (95.0 F) |
| 1942 | 33.9 C (93.0 F) |
| 1943 | 27.8 C (82.0 F) |
| 1944 | 32.2 C (90.0 F) |
| 1945 | 30.6 C (87.1 F) |
| 1946 | 29.4 C (84.9 F) |
| 1947 | 27.8 C (82.0 F) |
| 1948 | 28.3 C (82.9 F) |
| 1949 | 27.2 C (81.0 F) |
| 1950 | 27.8 C (82.0 F) |
| 1951 | 32.2 C (90.0 F) |
| 1952 | 31.1 C (88.0 F) |
| 1953 | 28.9 C (84.0 F) |
| 1954 | 23.9 C (75.0 F) |
| 1955 | 29.4 C (84.9 F) |
| 1956 | 31.7 C (89.1 F) |
| 1957 | 27.8 C (82.0 F) |
| 1958 | 33.9 C (93.0 F) |
| 1959 | 30.6 C (87.1 F) |
| 1960 | 34.4 C (93.9 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 28.3 C (82.9 F) |
| 1963 | 29.4 C (84.9 F) |
| 1964 | 27.2 C (81.0 F) |
| 1965 | 32.8 C (91.0 F) |
| 1966 | 28.9 C (84.0 F) |
| 1967 | 29.4 C (84.9 F) |
| 1968 | 31.1 C (88.0 F) |
| 1969 | 30.6 C (87.1 F) |
| 1970 | 29.4 C (84.9 F) |
| 1971 | 31.1 C (88.0 F) |
| 1972 | 30.0 C (86.0 F) |
| 1973 | 30.0 C (86.0 F) |
| 1974 | 31.1 C (88.0 F) |
| 1975 | 28.9 C (84.0 F) |
| 1976 | 25.6 C (78.1 F) |
| 1977 | 31.7 C (89.1 F) |
| 1978 | 31.7 C (89.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1914 | -3.9 C (25.0 F) |
| 1915 | -1.7 C (28.9 F) |
| 1916 | -7.2 C (19.0 F) |
| 1917 | -8.3 C (17.1 F) |
| 1918 | -4.4 C (24.1 F) |
| 1919 | -7.8 C (18.0 F) |
| 1920 | -2.8 C (27.0 F) |
| 1921 | -8.9 C (16.0 F) |
| 1922 | -5.0 C (23.0 F) |
| 1923 | -11.7 C (10.9 F) |
| 1924 | -12.2 C (10.0 F) |
| 1925 | 0.0 C (32.0 F) |
| 1926 | -6.7 C (19.9 F) |
| 1927 | -8.3 C (17.1 F) |
| 1928 | -7.2 C (19.0 F) |
| 1929 | -9.4 C (15.1 F) |
| 1930 | -8.9 C (16.0 F) |
| 1931 | -1.7 C (28.9 F) |
| 1932 | -8.3 C (17.1 F) |
| 1933 | -9.4 C (15.1 F) |
| 1934 | -1.7 C (28.9 F) |
| 1935 | -11.7 C (10.9 F) |
| 1936 | -13.3 C (8.1 F) |
| 1937 | -10.0 C (14.0 F) |
| 1938 | -3.3 C (26.1 F) |
| 1939 | -4.4 C (24.1 F) |
| 1940 | -3.3 C (26.1 F) |
| 1941 | -3.9 C (25.0 F) |
| 1942 | -3.9 C (25.0 F) |
| 1943 | -13.9 C (7.0 F) |
| 1944 | -2.8 C (27.0 F) |
| 1945 | -2.8 C (27.0 F) |
| 1946 | -3.9 C (25.0 F) |
| 1947 | -8.3 C (17.1 F) |
| 1948 | -3.9 C (25.0 F) |
| 1949 | -6.7 C (19.9 F) |
| 1950 | -13.3 C (8.1 F) |
| 1951 | -7.8 C (18.0 F) |
| 1952 | -6.1 C (21.0 F) |
| 1953 | -1.7 C (28.9 F) |
| 1954 | -8.3 C (17.1 F) |
| 1955 | -10.0 C (14.0 F) |
| 1956 | -10.0 C (14.0 F) |
| 1957 | -6.7 C (19.9 F) |
| 1958 | -1.1 C (30.0 F) |
| 1959 | -7.8 C (18.0 F) |
| 1960 | -3.9 C (25.0 F) |
| 1961 | -2.2 C (28.0 F) |
| 1962 | -6.1 C (21.0 F) |
| 1963 | -8.3 C (17.1 F) |
| 1964 | -13.9 C (7.0 F) |
| 1965 | -2.8 C (27.0 F) |
| 1966 | -2.2 C (28.0 F) |
| 1967 | -3.9 C (25.0 F) |
| 1968 | -13.9 C (7.0 F) |
| 1969 | -10.0 C (14.0 F) |
| 1970 | -3.3 C (26.1 F) |
| 1971 | -6.7 C (19.9 F) |
| 1972 | -7.8 C (18.0 F) |
| 1973 | -4.4 C (24.1 F) |
| 1974 | -3.9 C (25.0 F) |
| 1975 | -3.9 C (25.0 F) |
| 1976 | -4.4 C (24.1 F) |
| 1977 | -2.2 C (28.0 F) |
| 1978 | -1.7 C (28.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1914 | 25.7 mm (1.0 in) |
| 1915 | 25.9 mm (1.0 in) |
| 1916 | 43.2 mm (1.7 in) |
| 1917 | 40.9 mm (1.6 in) |
| 1918 | 49.0 mm (1.9 in) |
| 1919 | 33.0 mm (1.3 in) |
| 1920 | 35.1 mm (1.4 in) |
| 1921 | 40.6 mm (1.6 in) |
| 1922 | 25.4 mm (1.0 in) |
| 1923 | 30.5 mm (1.2 in) |
| 1924 | 51.8 mm (2.0 in) |
| 1925 | 27.9 mm (1.1 in) |
| 1926 | 46.0 mm (1.8 in) |
| 1927 | 45.2 mm (1.8 in) |
| 1928 | 26.4 mm (1.0 in) |
| 1929 | 31.8 mm (1.3 in) |
| 1930 | 41.7 mm (1.6 in) |
| 1931 | 41.1 mm (1.6 in) |
| 1932 | 31.8 mm (1.3 in) |
| 1933 | 40.4 mm (1.6 in) |
| 1934 | 56.9 mm (2.2 in) |
| 1935 | 101.9 mm (4.0 in) |
| 1936 | 40.4 mm (1.6 in) |
| 1937 | 66.0 mm (2.6 in) |
| 1938 | 46.5 mm (1.8 in) |
| 1939 | 47.5 mm (1.9 in) |
| 1940 | 30.5 mm (1.2 in) |
| 1941 | 43.9 mm (1.7 in) |
| 1942 | 24.6 mm (1.0 in) |
| 1943 | 27.7 mm (1.1 in) |
| 1944 | 32.8 mm (1.3 in) |
| 1945 | 40.4 mm (1.6 in) |
| 1946 | 43.7 mm (1.7 in) |
| 1947 | 46.2 mm (1.8 in) |
| 1948 | 48.8 mm (1.9 in) |
| 1949 | 61.7 mm (2.4 in) |
| 1950 | 30.5 mm (1.2 in) |
| 1951 | 36.1 mm (1.4 in) |
| 1952 | 37.6 mm (1.5 in) |
| 1953 | 27.2 mm (1.1 in) |
| 1954 | 42.2 mm (1.7 in) |
| 1955 | 76.5 mm (3.0 in) |
| 1956 | 47.0 mm (1.9 in) |
| 1957 | 29.2 mm (1.1 in) |
| 1958 | 30.5 mm (1.2 in) |
| 1959 | 36.8 mm (1.4 in) |
| 1960 | 50.0 mm (2.0 in) |
| 1961 | 57.9 mm (2.3 in) |
| 1962 | 33.3 mm (1.3 in) |
| 1963 | 43.4 mm (1.7 in) |
| 1964 | 31.8 mm (1.3 in) |
| 1965 | 35.1 mm (1.4 in) |
| 1966 | 31.0 mm (1.2 in) |
| 1967 | 48.8 mm (1.9 in) |
| 1968 | 50.8 mm (2.0 in) |
| 1969 | 22.9 mm (0.9 in) |
| 1970 | 33.3 mm (1.3 in) |
| 1971 | 26.9 mm (1.1 in) |
| 1972 | 65.0 mm (2.6 in) |
| 1973 | 35.3 mm (1.4 in) |
| 1974 | 41.9 mm (1.6 in) |
| 1975 | 49.0 mm (1.9 in) |
| 1976 | 37.6 mm (1.5 in) |
| 1977 | 24.9 mm (1.0 in) |
| 1978 | 26.2 mm (1.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1914 | 65.2 mm (2.6 in) |
| 1915 | 60.5 mm (2.4 in) |
| 1916 | 73.9 mm (2.9 in) |
| 1917 | 103.4 mm (4.1 in) |
| 1918 | 104.6 mm (4.1 in) |
| 1919 | 85.1 mm (3.4 in) |
| 1920 | 70.9 mm (2.8 in) |
| 1921 | 69.8 mm (2.7 in) |
| 1922 | 51.5 mm (2.0 in) |
| 1923 | 65.3 mm (2.6 in) |
| 1924 | 69.1 mm (2.7 in) |
| 1925 | 54.3 mm (2.1 in) |
| 1926 | 68.4 mm (2.7 in) |
| 1927 | 80.8 mm (3.2 in) |
| 1928 | 56.9 mm (2.2 in) |
| 1929 | 48.6 mm (1.9 in) |
| 1930 | 74.2 mm (2.9 in) |
| 1931 | 68.5 mm (2.7 in) |
| 1932 | 70.7 mm (2.8 in) |
| 1933 | 109.5 mm (4.3 in) |
| 1934 | 97.5 mm (3.8 in) |
| 1935 | 270.8 mm (10.7 in) |
| 1936 | 71.4 mm (2.8 in) |
| 1937 | 144.0 mm (5.7 in) |
| 1938 | 92.8 mm (3.7 in) |
| 1939 | 113.1 mm (4.5 in) |
| 1940 | 44.5 mm (1.8 in) |
| 1941 | 63.1 mm (2.5 in) |
| 1942 | 48.8 mm (1.9 in) |
| 1943 | 58.8 mm (2.3 in) |
| 1944 | 57.2 mm (2.3 in) |
| 1945 | 72.1 mm (2.8 in) |
| 1946 | 59.2 mm (2.3 in) |
| 1947 | 79.5 mm (3.1 in) |
| 1948 | 102.1 mm (4.0 in) |
| 1949 | 112.8 mm (4.4 in) |
| 1950 | 60.8 mm (2.4 in) |
| 1951 | 93.0 mm (3.7 in) |
| 1952 | 46.7 mm (1.8 in) |
| 1953 | 90.8 mm (3.6 in) |
| 1954 | 105.2 mm (4.1 in) |
| 1955 | 114.6 mm (4.5 in) |
| 1956 | 104.1 mm (4.1 in) |
| 1957 | 59.9 mm (2.4 in) |
| 1958 | 60.4 mm (2.4 in) |
| 1959 | 88.1 mm (3.5 in) |
| 1960 | 76.4 mm (3.0 in) |
| 1961 | 97.6 mm (3.8 in) |
| 1962 | 60.7 mm (2.4 in) |
| 1963 | 93.1 mm (3.7 in) |
| 1964 | 58.2 mm (2.3 in) |
| 1965 | 63.0 mm (2.5 in) |
| 1966 | 78.8 mm (3.1 in) |
| 1967 | 108.6 mm (4.3 in) |
| 1968 | 79.4 mm (3.1 in) |
| 1969 | 62.2 mm (2.4 in) |
| 1970 | 50.8 mm (2.0 in) |
| 1971 | 76.2 mm (3.0 in) |
| 1972 | 152.1 mm (6.0 in) |
| 1973 | 62.4 mm (2.5 in) |
| 1974 | 122.9 mm (4.8 in) |
| 1975 | 90.0 mm (3.5 in) |
| 1976 | 72.1 mm (2.8 in) |
| 1977 | 58.1 mm (2.3 in) |
| 1978 | 53.8 mm (2.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1914 | 40 days |
| 1915 | 34 days |
| 1916 | 47 days |
| 1917 | 46 days |
| 1918 | 38 days |
| 1919 | 45 days |
| 1920 | 38 days |
| 1921 | 33 days |
| 1922 | 47 days |
| 1923 | 44 days |
| 1924 | 38 days |
| 1925 | 37 days |
| 1926 | 33 days |
| 1927 | 20 days |
| 1928 | 38 days |
| 1929 | 29 days |
| 1930 | 78 days |
| 1931 | 44 days |
| 1932 | 30 days |
| 1933 | 31 days |
| 1934 | 31 days |
| 1935 | 36 days |
| 1936 | 49 days |
| 1937 | 42 days |
| 1938 | 46 days |
| 1939 | 39 days |
| 1940 | 32 days |
| 1941 | 24 days |
| 1942 | 38 days |
| 1943 | 25 days |
| 1944 | 52 days |
| 1945 | 41 days |
| 1946 | 22 days |
| 1947 | 17 days |
| 1948 | 17 days |
| 1949 | 20 days |
| 1950 | 30 days |
| 1951 | 52 days |
| 1952 | 44 days |
| 1953 | 26 days |
| 1954 | 34 days |
| 1955 | 43 days |
| 1956 | 39 days |
| 1957 | 19 days |
| 1958 | 36 days |
| 1959 | 21 days |
| 1960 | 36 days |
| 1961 | 40 days |
| 1962 | 27 days |
| 1963 | 27 days |
| 1964 | 16 days |
| 1965 | 29 days |
| 1966 | 18 days |
| 1967 | 42 days |
| 1968 | 25 days |
| 1969 | 31 days |
| 1970 | 34 days |
| 1971 | 40 days |
| 1972 | 32 days |
| 1973 | 39 days |
| 1974 | 36 days |
| 1975 | 30 days |
| 1976 | 17 days |
| 1977 | 36 days |
| 1978 | 42 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
57 years with a frostAcross 57 years with a frost, the median last spring frost at James Island falls on 25 March and the median first autumn frost on 25 November, which leaves a median of 249 days between them.
Fitted over all years, the growing season changes by +2.1 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1945 to 1977) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 25 March | n/a | 25 March | n/a | -1.0 days per decade |
| First autumn frost | 25 November | n/a | 25 November | n/a | +1.1 days per decade |
| Growing days | 249 days | n/a | 250 days | n/a | +2.1 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
64 years, 1914 to 1977A day with at least 37.9 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 87.1 mm (3.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 37.9 mm (1.5 in) | |
| 5 years | 49.4 mm (1.9 in) | |
| 10 years | 57.7 mm (2.3 in) | |
| 25 years | 68.8 mm (2.7 in) | |
| 50 years | 77.7 mm (3.1 in) | |
| 100 years | 87.1 mm (3.4 in) | Longer than the 64 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 64 years of values from 1914 to 1977.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 101.9 mm (4.0 in) in 1935; 76.5 mm (3.0 in) in 1955; 66.0 mm (2.6 in) in 1937.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of James Island, at 1949. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1949 ran 0.3 C (0.5 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1949 | +0.3 | +0.5 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
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). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-17).