Port Shepstone Weather Records (SF001827940)
Record envelope, standing records and threshold days for Port Shepstone (SF001827940), South Africa, with 76 years of record.
Key Facts for Port Shepstone
- Port Shepstone (SF001827940) is a weather station in South Africa at -30.73 latitude and 30.45 longitude, 17 m (56 ft) above sea level.
- The station reports from 1919 to 1994, 76 years of record.
- 620 records set at Port Shepstone still stand.
- Records are tracked for prcp: an element needs 30 years of data to be eligible.
- Port Shepstone set a daily record precipitation of 37.7 mm (1.5 in) on 4 December 1991.
About the Station
- Location: South Africa, -30.73 latitude, 30.45 longitude.
- Elevation: 17 m (56 ft).
- Period of record: 1919 to 1994, 76 years.
- Eligible elements: prcp.
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 | 32.0 C (89.6 F) | 17.8 C (64.0 F) | n/a | n/a |
| Feb | 31.9 C (89.4 F) | 17.4 C (63.3 F) | n/a | n/a |
| Mar | 28.2 C (82.8 F) | 16.8 C (62.2 F) | n/a | n/a |
| Apr | 29.5 C (85.1 F) | 13.0 C (55.4 F) | n/a | n/a |
| May | 25.8 C (78.4 F) | 13.2 C (55.8 F) | n/a | n/a |
| Jun | 26.5 C (79.7 F) | 10.0 C (50.0 F) | n/a | n/a |
| Jul | 29.4 C (84.9 F) | 9.7 C (49.5 F) | n/a | n/a |
| Aug | 32.1 C (89.8 F) | 10.0 C (50.0 F) | n/a | n/a |
| Sep | 26.0 C (78.8 F) | 11.0 C (51.8 F) | n/a | n/a |
| Oct | 27.0 C (80.6 F) | 13.0 C (55.4 F) | n/a | n/a |
| Nov | 28.3 C (82.9 F) | 13.8 C (56.8 F) | n/a | n/a |
| Dec | 29.4 C (84.9 F) | 16.0 C (60.8 F) | n/a | n/a |
Which Years Hold Standing Records
620 standing records| Year set | Standing records |
|---|---|
| 1975 | 44 |
| 1976 | 23 |
| 1979 | 3 |
| 1980 | 18 |
| 1981 | 46 |
| 1982 | 105 |
| 1983 | 65 |
| 1984 | 53 |
| 1985 | 36 |
| 1986 | 41 |
| 1987 | 30 |
| 1988 | 35 |
| 1989 | 37 |
| 1990 | 15 |
| 1991 | 7 |
| 1992 | 14 |
| 1993 | 23 |
| 1994 | 25 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1963-12-13 | Record daily precipitation | Record daily precipitation 196.0 mm (7.7 in) |
| 1964-06-19 | Record daily precipitation | Record daily precipitation 263.0 mm (10.4 in) |
Wettest Day of Each Month
Jun: 263.0 mm (10.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 158.0 mm (6.2 in) | 12 January 1953 |
| Feb | 130.8 mm (5.1 in) | 13 February 1923 |
| Mar | 176.0 mm (6.9 in) | 11 March 1963 |
| Apr | 129.5 mm (5.1 in) | 10 April 1961 |
| May | 160.0 mm (6.3 in) | 4 May 1940 |
| Jun | 263.0 mm (10.4 in) | 19 June 1964 |
| Jul | 147.8 mm (5.8 in) | 14 July 1931 |
| Aug | 183.0 mm (7.2 in) | 20 August 1971 |
| Sep | 142.5 mm (5.6 in) | 26 September 1975 |
| Oct | 203.0 mm (8.0 in) | 23 October 1964 |
| Nov | 176.8 mm (7.0 in) | 11 November 1942 |
| Dec | 196.0 mm (7.7 in) | 13 December 1963 |
Period of Record Coverage
1975 to 1994| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1975 | 27 | 7% | No |
| 1976 | 13 | 4% | No |
| 1982 | 32 | 9% | No |
| 1983 | 21 | 6% | No |
| 1984 | 18 | 5% | No |
| 1985 | 13 | 4% | No |
| 1986 | 13 | 4% | No |
| 1987 | 9 | 2% | No |
| 1988 | 11 | 3% | No |
| 1989 | 12 | 3% | No |
| 1990 | 5 | 1% | No |
| 1991 | 3 | 1% | No |
| 1992 | 4 | 1% | No |
| 1993 | 8 | 2% | No |
| 1994 | 8 | 2% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 4 December 1991 | Port Shepstone, ZA | daily rain | 37.7 mm (1.5 in) | 9.0 mm (0.35 in) | 52 years | 26 of 100 (Routine) |
| 14 November 1991 | Port Shepstone, ZA | daily rain | 74.0 mm (2.9 in) | 33.1 mm (1.3 in) | 48 years | 43 of 100 (Notable) |
| 19 September 1991 | Port Shepstone, ZA | daily rain | 32.0 mm (1.3 in) | 26.9 mm (1.1 in) | 53 years | 39 of 100 (Notable) |
| 10 June 1991 | Port Shepstone, ZA | daily rain | 22.0 mm (0.9 in) | 13.9 mm (0.5 in) | 62 years | 20 of 100 (Routine) |
| 18 October 1990 | Port Shepstone, ZA | daily rain | 56.0 mm (2.2 in) | 25.0 mm (1.0 in) | 24 years | 28 of 100 (Routine) |
| 17 October 1990 | Port Shepstone, ZA | daily rain | 47.4 mm (1.9 in) | 12.9 mm (0.5 in) | 25 years | 21 of 100 (Routine) |
| 29 August 1990 | Port Shepstone, ZA | daily rain | 45.5 mm (1.8 in) | 15.0 mm (0.6 in) | 8 years | 18 of 100 (Routine) |
| 25 March 1990 | Port Shepstone, ZA | daily rain | 168.0 mm (6.6 in) | 23.0 mm (0.9 in) | 28 years | 24 of 100 (Routine) |
| 16 February 1989 | Port Shepstone, ZA | daily rain | 68.1 mm (2.7 in) | 18.3 mm (0.7 in) | 41 years | 29 of 100 (Routine) |
| 9 September 1981 | Port Shepstone, ZA | daily rain | 18.5 mm (0.7 in) | 11.0 mm (0.4 in) | 8 years | 14 of 100 (Routine) |
| 29 August 1981 | Port Shepstone, ZA | daily rain | 30.5 mm (1.2 in) | 10.5 mm (0.4 in) | 8 years | 14 of 100 (Routine) |
| 28 August 1981 | Port Shepstone, ZA | daily rain | 28.0 mm (1.1 in) | 1.5 mm (0.06 in) | 4 years | 7 of 100 (Routine) |
| 22 August 1981 | Port Shepstone, ZA | daily rain | 71.0 mm (2.8 in) | 52.7 mm (2.1 in) | 46 years | 52 of 100 (Notable) |
| 29 July 1981 | Port Shepstone, ZA | daily rain | 12.0 mm (0.5 in) | 4.9 mm (0.19 in) | 34 years | 18 of 100 (Routine) |
| 24 January 1981 | Port Shepstone, ZA | daily rain | 70.5 mm (2.8 in) | 30.9 mm (1.2 in) | 31 years | 34 of 100 (Routine) |
| 18 January 1981 | Port Shepstone, ZA | daily rain | 62.0 mm (2.4 in) | 32.0 mm (1.3 in) | 53 years | 41 of 100 (Notable) |
| 27 November 1980 | Port Shepstone, ZA | daily rain | 28.1 mm (1.1 in) | 8.9 mm (0.35 in) | 17 years | 16 of 100 (Routine) |
| 7 September 1980 | Port Shepstone, ZA | daily rain | 130.0 mm (5.1 in) | 96.2 mm (3.8 in) | 48 years | 60 of 100 (Major) |
| 4 June 1980 | Port Shepstone, ZA | daily rain | 18.2 mm (0.7 in) | 15.2 mm (0.6 in) | 24 years | 18 of 100 (Routine) |
| 7 May 1980 | Port Shepstone, ZA | daily rain | 50.0 mm (2.0 in) | 13.5 mm (0.5 in) | 17 years | 16 of 100 (Routine) |
Extremes by Year
1919 to 1994| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 32.1 C (89.8 F) | 1988 | 28.0 C (82.4 F) | 15 |
| Coldest night (TNn) | 9.7 C (49.5 F) | 1986 | 11.6 C (52.9 F) | 16 |
| Wettest day (Rx1day) | 263.0 mm (10.4 in) | 1964 | 88.3 mm (3.5 in) | 76 |
| Wettest five days (Rx5day) | 386.0 mm (15.2 in) | 1963 | 150.6 mm (5.9 in) | 66 |
| Longest dry spell (CDD) | 97 days | 1962 | 33 days | 75 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1919 | n/a |
| 1920 | n/a |
| 1921 | n/a |
| 1922 | n/a |
| 1923 | n/a |
| 1924 | n/a |
| 1925 | n/a |
| 1926 | n/a |
| 1927 | n/a |
| 1928 | n/a |
| 1929 | n/a |
| 1930 | n/a |
| 1931 | n/a |
| 1932 | n/a |
| 1933 | n/a |
| 1934 | n/a |
| 1935 | n/a |
| 1936 | n/a |
| 1937 | n/a |
| 1938 | n/a |
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | n/a |
| 1945 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | n/a |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | n/a |
| 1973 | n/a |
| 1974 | n/a |
| 1975 | 26.0 C (78.8 F) |
| 1976 | 30.0 C (86.0 F) |
| 1977 | n/a |
| 1978 | n/a |
| 1979 | n/a |
| 1980 | n/a |
| 1981 | n/a |
| 1982 | 28.2 C (82.8 F) |
| 1983 | 32.0 C (89.6 F) |
| 1984 | 27.0 C (80.6 F) |
| 1985 | 31.9 C (89.4 F) |
| 1986 | 32.0 C (89.6 F) |
| 1987 | 29.5 C (85.1 F) |
| 1988 | 32.1 C (89.8 F) |
| 1989 | 26.5 C (79.7 F) |
| 1990 | 26.8 C (80.2 F) |
| 1991 | 24.5 C (76.1 F) |
| 1992 | 28.0 C (82.4 F) |
| 1993 | 26.8 C (80.2 F) |
| 1994 | 27.0 C (80.6 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1919 | n/a |
| 1920 | n/a |
| 1921 | n/a |
| 1922 | n/a |
| 1923 | n/a |
| 1924 | n/a |
| 1925 | n/a |
| 1926 | n/a |
| 1927 | n/a |
| 1928 | n/a |
| 1929 | n/a |
| 1930 | n/a |
| 1931 | n/a |
| 1932 | n/a |
| 1933 | n/a |
| 1934 | n/a |
| 1935 | n/a |
| 1936 | n/a |
| 1937 | n/a |
| 1938 | n/a |
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | n/a |
| 1945 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | n/a |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | n/a |
| 1973 | n/a |
| 1974 | n/a |
| 1975 | n/a |
| 1976 | n/a |
| 1977 | n/a |
| 1978 | n/a |
| 1979 | 20.0 C (68.0 F) |
| 1980 | 10.0 C (50.0 F) |
| 1981 | 10.0 C (50.0 F) |
| 1982 | 10.4 C (50.7 F) |
| 1983 | 9.9 C (49.8 F) |
| 1984 | 10.5 C (50.9 F) |
| 1985 | 11.7 C (53.1 F) |
| 1986 | 9.7 C (49.5 F) |
| 1987 | 13.0 C (55.4 F) |
| 1988 | 11.5 C (52.7 F) |
| 1989 | 12.4 C (54.3 F) |
| 1990 | 15.5 C (59.9 F) |
| 1991 | 11.0 C (51.8 F) |
| 1992 | 16.4 C (61.5 F) |
| 1993 | 16.3 C (61.3 F) |
| 1994 | 11.8 C (53.2 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1919 | 59.2 mm (2.3 in) |
| 1920 | 78.7 mm (3.1 in) |
| 1921 | 82.6 mm (3.3 in) |
| 1922 | 64.8 mm (2.6 in) |
| 1923 | 130.8 mm (5.1 in) |
| 1924 | 39.6 mm (1.6 in) |
| 1925 | 61.2 mm (2.4 in) |
| 1926 | 102.6 mm (4.0 in) |
| 1927 | 131.8 mm (5.2 in) |
| 1928 | 63.8 mm (2.5 in) |
| 1929 | 114.0 mm (4.5 in) |
| 1930 | 82.3 mm (3.2 in) |
| 1931 | 147.8 mm (5.8 in) |
| 1932 | 142.0 mm (5.6 in) |
| 1933 | 130.6 mm (5.1 in) |
| 1934 | 75.4 mm (3.0 in) |
| 1935 | 95.3 mm (3.8 in) |
| 1936 | 122.7 mm (4.8 in) |
| 1937 | 94.0 mm (3.7 in) |
| 1938 | 152.4 mm (6.0 in) |
| 1939 | 78.2 mm (3.1 in) |
| 1940 | 160.0 mm (6.3 in) |
| 1941 | 37.8 mm (1.5 in) |
| 1942 | 176.8 mm (7.0 in) |
| 1943 | 158.8 mm (6.3 in) |
| 1944 | 77.5 mm (3.1 in) |
| 1945 | 75.9 mm (3.0 in) |
| 1946 | 65.3 mm (2.6 in) |
| 1947 | 90.2 mm (3.6 in) |
| 1948 | 77.2 mm (3.0 in) |
| 1949 | 60.5 mm (2.4 in) |
| 1950 | 110.5 mm (4.4 in) |
| 1951 | 86.4 mm (3.4 in) |
| 1952 | 113.0 mm (4.4 in) |
| 1953 | 158.0 mm (6.2 in) |
| 1954 | 102.1 mm (4.0 in) |
| 1955 | 81.2 mm (3.2 in) |
| 1956 | 133.5 mm (5.3 in) |
| 1957 | 96.0 mm (3.8 in) |
| 1958 | 94.0 mm (3.7 in) |
| 1959 | 144.0 mm (5.7 in) |
| 1960 | 80.3 mm (3.2 in) |
| 1961 | 129.5 mm (5.1 in) |
| 1962 | 145.0 mm (5.7 in) |
| 1963 | 196.0 mm (7.7 in) |
| 1964 | 263.0 mm (10.4 in) |
| 1965 | 60.0 mm (2.4 in) |
| 1966 | 56.5 mm (2.2 in) |
| 1967 | 77.0 mm (3.0 in) |
| 1968 | 108.5 mm (4.3 in) |
| 1969 | 84.5 mm (3.3 in) |
| 1970 | 149.0 mm (5.9 in) |
| 1971 | 183.0 mm (7.2 in) |
| 1972 | 69.0 mm (2.7 in) |
| 1973 | 58.0 mm (2.3 in) |
| 1974 | 131.0 mm (5.2 in) |
| 1975 | 142.5 mm (5.6 in) |
| 1976 | 140.0 mm (5.5 in) |
| 1977 | 100.0 mm (3.9 in) |
| 1978 | 124.0 mm (4.9 in) |
| 1979 | 112.0 mm (4.4 in) |
| 1980 | 130.0 mm (5.1 in) |
| 1981 | 71.0 mm (2.8 in) |
| 1982 | 43.7 mm (1.7 in) |
| 1983 | 17.8 mm (0.7 in) |
| 1984 | 22.6 mm (0.9 in) |
| 1985 | 11.9 mm (0.5 in) |
| 1986 | 10.4 mm (0.4 in) |
| 1987 | 17.0 mm (0.7 in) |
| 1988 | 11.7 mm (0.5 in) |
| 1989 | 68.1 mm (2.7 in) |
| 1990 | 168.0 mm (6.6 in) |
| 1991 | 74.0 mm (2.9 in) |
| 1992 | 26.0 mm (1.0 in) |
| 1993 | 2.0 mm (0.08 in) |
| 1994 | 21.1 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1919 | 77.8 mm (3.1 in) |
| 1920 | 119.3 mm (4.7 in) |
| 1921 | 188.3 mm (7.4 in) |
| 1922 | 152.5 mm (6.0 in) |
| 1923 | 224.9 mm (8.9 in) |
| 1924 | 63.7 mm (2.5 in) |
| 1925 | 102.3 mm (4.0 in) |
| 1926 | 121.7 mm (4.8 in) |
| 1927 | 212.2 mm (8.4 in) |
| 1928 | 78.5 mm (3.1 in) |
| 1929 | 330.3 mm (13.0 in) |
| 1930 | 183.8 mm (7.2 in) |
| 1931 | 258.1 mm (10.2 in) |
| 1932 | 180.1 mm (7.1 in) |
| 1933 | 147.2 mm (5.8 in) |
| 1934 | 168.9 mm (6.6 in) |
| 1935 | 144.2 mm (5.7 in) |
| 1936 | 216.6 mm (8.5 in) |
| 1937 | 97.0 mm (3.8 in) |
| 1938 | 215.9 mm (8.5 in) |
| 1939 | 160.3 mm (6.3 in) |
| 1940 | 221.7 mm (8.7 in) |
| 1941 | 60.2 mm (2.4 in) |
| 1942 | 224.6 mm (8.8 in) |
| 1943 | 169.9 mm (6.7 in) |
| 1944 | 126.6 mm (5.0 in) |
| 1945 | 115.6 mm (4.6 in) |
| 1946 | 150.6 mm (5.9 in) |
| 1947 | 131.4 mm (5.2 in) |
| 1948 | 222.4 mm (8.8 in) |
| 1949 | 86.3 mm (3.4 in) |
| 1950 | 137.7 mm (5.4 in) |
| 1951 | 126.1 mm (5.0 in) |
| 1952 | 125.7 mm (4.9 in) |
| 1953 | 175.5 mm (6.9 in) |
| 1954 | 122.6 mm (4.8 in) |
| 1955 | 196.0 mm (7.7 in) |
| 1956 | 214.0 mm (8.4 in) |
| 1957 | 132.3 mm (5.2 in) |
| 1958 | 145.4 mm (5.7 in) |
| 1959 | 239.4 mm (9.4 in) |
| 1960 | 123.8 mm (4.9 in) |
| 1961 | 204.5 mm (8.1 in) |
| 1962 | 215.0 mm (8.5 in) |
| 1963 | 386.0 mm (15.2 in) |
| 1964 | 284.0 mm (11.2 in) |
| 1965 | 94.1 mm (3.7 in) |
| 1966 | 84.2 mm (3.3 in) |
| 1967 | 118.0 mm (4.6 in) |
| 1968 | 121.0 mm (4.8 in) |
| 1969 | 193.5 mm (7.6 in) |
| 1970 | 283.5 mm (11.2 in) |
| 1971 | 240.5 mm (9.5 in) |
| 1972 | 137.8 mm (5.4 in) |
| 1973 | 105.0 mm (4.1 in) |
| 1974 | 163.0 mm (6.4 in) |
| 1975 | 150.5 mm (5.9 in) |
| 1976 | 377.5 mm (14.9 in) |
| 1977 | 181.5 mm (7.1 in) |
| 1978 | 242.0 mm (9.5 in) |
| 1979 | 112.0 mm (4.4 in) |
| 1980 | 142.7 mm (5.6 in) |
| 1981 | 113.6 mm (4.5 in) |
| 1982 | n/a |
| 1983 | n/a |
| 1984 | n/a |
| 1985 | n/a |
| 1986 | n/a |
| 1987 | n/a |
| 1988 | n/a |
| 1989 | n/a |
| 1990 | 233.0 mm (9.2 in) |
| 1991 | 106.8 mm (4.2 in) |
| 1992 | 34.6 mm (1.4 in) |
| 1993 | n/a |
| 1994 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1919 | 57 days |
| 1920 | 36 days |
| 1921 | 42 days |
| 1922 | 22 days |
| 1923 | 34 days |
| 1924 | 30 days |
| 1925 | 26 days |
| 1926 | 27 days |
| 1927 | 54 days |
| 1928 | 30 days |
| 1929 | 20 days |
| 1930 | 26 days |
| 1931 | 20 days |
| 1932 | 32 days |
| 1933 | 34 days |
| 1934 | 44 days |
| 1935 | 21 days |
| 1936 | 29 days |
| 1937 | 31 days |
| 1938 | 19 days |
| 1939 | 32 days |
| 1940 | 47 days |
| 1941 | 30 days |
| 1942 | 49 days |
| 1943 | 45 days |
| 1944 | 28 days |
| 1945 | 38 days |
| 1946 | 61 days |
| 1947 | 24 days |
| 1948 | 84 days |
| 1949 | 45 days |
| 1950 | 18 days |
| 1951 | 49 days |
| 1952 | 27 days |
| 1953 | 57 days |
| 1954 | 33 days |
| 1955 | 33 days |
| 1956 | 32 days |
| 1957 | 45 days |
| 1958 | 22 days |
| 1959 | 46 days |
| 1960 | 33 days |
| 1961 | 45 days |
| 1962 | 97 days |
| 1963 | 27 days |
| 1964 | 33 days |
| 1965 | 26 days |
| 1966 | 52 days |
| 1967 | 20 days |
| 1968 | 37 days |
| 1969 | 42 days |
| 1970 | 36 days |
| 1971 | 33 days |
| 1972 | 34 days |
| 1973 | 40 days |
| 1974 | 40 days |
| 1975 | 50 days |
| 1976 | 64 days |
| 1977 | 40 days |
| 1978 | 84 days |
| 1979 | 75 days |
| 1980 | 38 days |
| 1981 | 29 days |
| 1982 | 1 day |
| 1983 | 1 day |
| 1984 | 1 day |
| 1985 | n/a |
| 1986 | 1 day |
| 1987 | 1 day |
| 1988 | 1 day |
| 1989 | 1 day |
| 1990 | 45 days |
| 1991 | 33 days |
| 1992 | 7 days |
| 1993 | 1 day |
| 1994 | 1 day |
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.
Rainfall Return Levels
62 years, 1920 to 1991A day with at least 102.7 mm (4.0 in) of rain is expected about once in 2 years. A day with at least 237.3 mm (9.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 102.7 mm (4.0 in) | |
| 5 years | 141.1 mm (5.6 in) | |
| 10 years | 165.6 mm (6.5 in) | |
| 25 years | 195.4 mm (7.7 in) | |
| 50 years | 216.8 mm (8.5 in) | |
| 100 years | 237.3 mm (9.3 in) | Longer than the 62 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, 62 years of values from 1920 to 1991.
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: 263.0 mm (10.4 in) in 1964; 196.0 mm (7.7 in) in 1963; 183.0 mm (7.2 in) in 1971.
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).