Wilo (Bos) Weather Records (SF001278330)
Record envelope, standing records and threshold days for Wilo (Bos) (SF001278330), South Africa, with 75 years of record.
Key Facts for Wilo (Bos)
- Wilo (Bos) (SF001278330) is a weather station in South Africa at -31.88 latitude and 28.97 longitude, 564 m (1,850 ft) above sea level.
- The station reports from 1923 to 1997, 75 years of record.
- 0 records set at Wilo (Bos) still stand.
- Records are tracked for prcp: an element needs 30 years of data to be eligible.
- Wilo (Bos) set a daily record precipitation of 53.0 mm (2.1 in) on 16 September 1997.
About the Station
- Location: South Africa, -31.88 latitude, 28.97 longitude.
- Elevation: 564 m (1,850 ft).
- Period of record: 1923 to 1997, 75 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 | n/a | n/a | n/a | n/a |
| Feb | n/a | n/a | n/a | n/a |
| Mar | n/a | n/a | n/a | n/a |
| Apr | n/a | n/a | n/a | n/a |
| May | n/a | n/a | n/a | n/a |
| Jun | n/a | n/a | n/a | n/a |
| Jul | n/a | n/a | n/a | n/a |
| Aug | n/a | n/a | n/a | n/a |
| Sep | n/a | n/a | n/a | n/a |
| Oct | n/a | n/a | n/a | n/a |
| Nov | n/a | n/a | n/a | n/a |
| Dec | n/a | n/a | n/a | n/a |
Which Years Hold Standing Records
0 standing records| Year set | Standing records |
|---|
Wettest Day of Each Month
Nov: 271.8 mm (10.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 89.0 mm (3.5 in) | 5 January 1965 |
| Feb | 226.0 mm (8.9 in) | 10 February 1985 |
| Mar | 159.0 mm (6.3 in) | 25 March 1962 |
| Apr | 141.5 mm (5.6 in) | 11 April 1961 |
| May | 190.0 mm (7.5 in) | 15 May 1959 |
| Jun | 120.0 mm (4.7 in) | 18 June 1964 |
| Jul | 164.6 mm (6.5 in) | 20 July 1923 |
| Aug | 174.0 mm (6.9 in) | 26 August 1970 |
| Sep | 223.3 mm (8.8 in) | 28 September 1987 |
| Oct | 135.0 mm (5.3 in) | 11 October 1970 |
| Nov | 271.8 mm (10.7 in) | 12 November 1947 |
| Dec | 100.0 mm (3.9 in) | 31 December 1977 |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 16 September 1997 | Wilo (Bos), ZA | daily rain | 53.0 mm (2.1 in) | 32.4 mm (1.3 in) | 64 years | 44 of 100 (Notable) |
| 29 June 1997 | Wilo (Bos), ZA | daily rain | 13.7 mm (0.5 in) | 10.7 mm (0.4 in) | 50 years | 20 of 100 (Routine) |
| 16 June 1997 | Wilo (Bos), ZA | daily rain | 79.2 mm (3.1 in) | 54.2 mm (2.1 in) | 2 years | 46 of 100 (Notable) |
| 12 June 1997 | Wilo (Bos), ZA | daily rain | 118.9 mm (4.7 in) | 32.5 mm (1.3 in) | 62 years | 48 of 100 (Notable) |
| 11 June 1997 | Wilo (Bos), ZA | daily rain | 113.8 mm (4.5 in) | 69.1 mm (2.7 in) | 62 years | 65 of 100 (Major) |
| 7 April 1997 | Wilo (Bos), ZA | daily rain | 32.0 mm (1.3 in) | 23.4 mm (0.9 in) | 54 years | 38 of 100 (Notable) |
| 6 April 1997 | Wilo (Bos), ZA | daily rain | 23.0 mm (0.9 in) | 4.5 mm (0.18 in) | 36 years | 19 of 100 (Routine) |
| 8 July 1996 | Wilo (Bos), ZA | daily rain | 41.5 mm (1.6 in) | 11.5 mm (0.5 in) | 52 years | 27 of 100 (Routine) |
| 7 July 1996 | Wilo (Bos), ZA | daily rain | 9.0 mm (0.35 in) | 2.4 mm (0.09 in) | 58 years | 20 of 100 (Routine) |
| 31 March 1996 | Wilo (Bos), ZA | daily rain | 14.0 mm (0.6 in) | 1.3 mm (0.05 in) | 58 years | 20 of 100 (Routine) |
| 25 January 1996 | Wilo (Bos), ZA | daily rain | 46.0 mm (1.8 in) | 16.8 mm (0.7 in) | 54 years | 37 of 100 (Notable) |
| 15 December 1995 | Wilo (Bos), ZA | daily rain | 74.0 mm (2.9 in) | 25.5 mm (1.0 in) | 48 years | 39 of 100 (Notable) |
| 7 December 1995 | Wilo (Bos), ZA | daily rain | 87.0 mm (3.4 in) | 42.3 mm (1.7 in) | 38 years | 48 of 100 (Notable) |
| 13 September 1995 | Wilo (Bos), ZA | daily rain | 20.0 mm (0.8 in) | 3.0 mm (0.12 in) | 20 years | 14 of 100 (Routine) |
| 26 July 1995 | Wilo (Bos), ZA | daily rain | 4.5 mm (0.18 in) | 1.5 mm (0.06 in) | 70 years | 20 of 100 (Routine) |
| 16 June 1995 | Wilo (Bos), ZA | daily rain | 25.0 mm (1.0 in) | 4.0 mm (0.16 in) | 29 years | 17 of 100 (Routine) |
| 20 April 1995 | Wilo (Bos), ZA | daily rain | 18.0 mm (0.7 in) | 8.5 mm (0.33 in) | 33 years | 20 of 100 (Routine) |
| 9 April 1995 | Wilo (Bos), ZA | daily rain | 47.0 mm (1.9 in) | 12.7 mm (0.5 in) | 68 years | 35 of 100 (Notable) |
| 26 December 1994 | Wilo (Bos), ZA | daily rain | 40.0 mm (1.6 in) | 25.0 mm (1.0 in) | 52 years | 40 of 100 (Notable) |
| 23 December 1994 | Wilo (Bos), ZA | daily rain | 43.0 mm (1.7 in) | 6.5 mm (0.26 in) | 19 years | 16 of 100 (Routine) |
Extremes by Year
1923 to 1997| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Wettest day (Rx1day) | 271.8 mm (10.7 in) | 1947 | 80.5 mm (3.2 in) | 75 |
| Wettest five days (Rx5day) | 376.0 mm (14.8 in) | 1985 | 130.3 mm (5.1 in) | 75 |
| Longest dry spell (CDD) | 107 days | 1962 | 40 days | 75 |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1923 | 164.6 mm (6.5 in) |
| 1924 | 48.3 mm (1.9 in) |
| 1925 | 77.5 mm (3.1 in) |
| 1926 | 48.3 mm (1.9 in) |
| 1927 | 103.1 mm (4.1 in) |
| 1928 | 88.4 mm (3.5 in) |
| 1929 | 38.6 mm (1.5 in) |
| 1930 | 59.7 mm (2.4 in) |
| 1931 | 133.1 mm (5.2 in) |
| 1932 | 143.5 mm (5.6 in) |
| 1933 | 72.1 mm (2.8 in) |
| 1934 | 75.7 mm (3.0 in) |
| 1935 | 86.4 mm (3.4 in) |
| 1936 | 72.4 mm (2.9 in) |
| 1937 | 54.4 mm (2.1 in) |
| 1938 | 46.2 mm (1.8 in) |
| 1939 | 54.6 mm (2.1 in) |
| 1940 | 72.4 mm (2.9 in) |
| 1941 | 67.8 mm (2.7 in) |
| 1942 | 104.1 mm (4.1 in) |
| 1943 | 54.1 mm (2.1 in) |
| 1944 | 73.4 mm (2.9 in) |
| 1945 | 92.5 mm (3.6 in) |
| 1946 | 63.2 mm (2.5 in) |
| 1947 | 271.8 mm (10.7 in) |
| 1948 | 53.3 mm (2.1 in) |
| 1949 | 78.2 mm (3.1 in) |
| 1950 | 56.9 mm (2.2 in) |
| 1951 | 95.3 mm (3.8 in) |
| 1952 | 54.4 mm (2.1 in) |
| 1953 | 89.0 mm (3.5 in) |
| 1954 | 120.0 mm (4.7 in) |
| 1955 | 65.7 mm (2.6 in) |
| 1956 | 237.3 mm (9.3 in) |
| 1957 | 94.5 mm (3.7 in) |
| 1958 | 85.4 mm (3.4 in) |
| 1959 | 190.0 mm (7.5 in) |
| 1960 | 84.0 mm (3.3 in) |
| 1961 | 141.5 mm (5.6 in) |
| 1962 | 159.0 mm (6.3 in) |
| 1963 | 125.5 mm (4.9 in) |
| 1964 | 120.0 mm (4.7 in) |
| 1965 | 89.0 mm (3.5 in) |
| 1966 | 124.0 mm (4.9 in) |
| 1967 | 46.0 mm (1.8 in) |
| 1968 | 35.5 mm (1.4 in) |
| 1969 | 50.0 mm (2.0 in) |
| 1970 | 174.0 mm (6.9 in) |
| 1971 | 105.0 mm (4.1 in) |
| 1972 | 56.0 mm (2.2 in) |
| 1973 | 150.0 mm (5.9 in) |
| 1974 | 52.0 mm (2.0 in) |
| 1975 | 115.0 mm (4.5 in) |
| 1976 | 100.5 mm (4.0 in) |
| 1977 | 104.0 mm (4.1 in) |
| 1978 | 100.0 mm (3.9 in) |
| 1979 | 70.0 mm (2.8 in) |
| 1980 | 40.0 mm (1.6 in) |
| 1981 | 45.0 mm (1.8 in) |
| 1982 | 40.5 mm (1.6 in) |
| 1983 | 52.5 mm (2.1 in) |
| 1984 | 80.5 mm (3.2 in) |
| 1985 | 226.0 mm (8.9 in) |
| 1986 | 72.0 mm (2.8 in) |
| 1987 | 223.3 mm (8.8 in) |
| 1988 | 67.0 mm (2.6 in) |
| 1989 | 91.6 mm (3.6 in) |
| 1990 | 80.0 mm (3.1 in) |
| 1991 | 48.5 mm (1.9 in) |
| 1992 | 43.0 mm (1.7 in) |
| 1993 | 87.5 mm (3.4 in) |
| 1994 | 96.0 mm (3.8 in) |
| 1995 | 87.0 mm (3.4 in) |
| 1996 | 46.0 mm (1.8 in) |
| 1997 | 118.9 mm (4.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1923 | 218.7 mm (8.6 in) |
| 1924 | 93.9 mm (3.7 in) |
| 1925 | 124.7 mm (4.9 in) |
| 1926 | 97.0 mm (3.8 in) |
| 1927 | 271.7 mm (10.7 in) |
| 1928 | 171.0 mm (6.7 in) |
| 1929 | 93.6 mm (3.7 in) |
| 1930 | 108.4 mm (4.3 in) |
| 1931 | 227.1 mm (8.9 in) |
| 1932 | 223.2 mm (8.8 in) |
| 1933 | 97.8 mm (3.9 in) |
| 1934 | 144.0 mm (5.7 in) |
| 1935 | 137.2 mm (5.4 in) |
| 1936 | 206.7 mm (8.1 in) |
| 1937 | 83.0 mm (3.3 in) |
| 1938 | 77.2 mm (3.0 in) |
| 1939 | 99.1 mm (3.9 in) |
| 1940 | 81.6 mm (3.2 in) |
| 1941 | 86.5 mm (3.4 in) |
| 1942 | 182.3 mm (7.2 in) |
| 1943 | 131.6 mm (5.2 in) |
| 1944 | 197.8 mm (7.8 in) |
| 1945 | 170.2 mm (6.7 in) |
| 1946 | 108.4 mm (4.3 in) |
| 1947 | 314.0 mm (12.4 in) |
| 1948 | 107.4 mm (4.2 in) |
| 1949 | 175.3 mm (6.9 in) |
| 1950 | 130.3 mm (5.1 in) |
| 1951 | 197.6 mm (7.8 in) |
| 1952 | 83.6 mm (3.3 in) |
| 1953 | 119.4 mm (4.7 in) |
| 1954 | 126.0 mm (5.0 in) |
| 1955 | 118.9 mm (4.7 in) |
| 1956 | 355.8 mm (14.0 in) |
| 1957 | 119.3 mm (4.7 in) |
| 1958 | 168.6 mm (6.6 in) |
| 1959 | 287.8 mm (11.3 in) |
| 1960 | 109.8 mm (4.3 in) |
| 1961 | 283.1 mm (11.1 in) |
| 1962 | 188.0 mm (7.4 in) |
| 1963 | 358.7 mm (14.1 in) |
| 1964 | 134.0 mm (5.3 in) |
| 1965 | 121.0 mm (4.8 in) |
| 1966 | 197.0 mm (7.8 in) |
| 1967 | 101.5 mm (4.0 in) |
| 1968 | 54.0 mm (2.1 in) |
| 1969 | 114.0 mm (4.5 in) |
| 1970 | 346.0 mm (13.6 in) |
| 1971 | 149.0 mm (5.9 in) |
| 1972 | 112.0 mm (4.4 in) |
| 1973 | 172.0 mm (6.8 in) |
| 1974 | 84.0 mm (3.3 in) |
| 1975 | 177.0 mm (7.0 in) |
| 1976 | 296.5 mm (11.7 in) |
| 1977 | 200.0 mm (7.9 in) |
| 1978 | 200.0 mm (7.9 in) |
| 1979 | 110.0 mm (4.3 in) |
| 1980 | 117.5 mm (4.6 in) |
| 1981 | 101.5 mm (4.0 in) |
| 1982 | 71.5 mm (2.8 in) |
| 1983 | 64.5 mm (2.5 in) |
| 1984 | 87.5 mm (3.4 in) |
| 1985 | 376.0 mm (14.8 in) |
| 1986 | 103.0 mm (4.1 in) |
| 1987 | 349.5 mm (13.8 in) |
| 1988 | 96.8 mm (3.8 in) |
| 1989 | 139.5 mm (5.5 in) |
| 1990 | 121.5 mm (4.8 in) |
| 1991 | 128.8 mm (5.1 in) |
| 1992 | 51.0 mm (2.0 in) |
| 1993 | 172.5 mm (6.8 in) |
| 1994 | 152.0 mm (6.0 in) |
| 1995 | 184.0 mm (7.2 in) |
| 1996 | 85.5 mm (3.4 in) |
| 1997 | 238.2 mm (9.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1923 | 33 days |
| 1924 | 40 days |
| 1925 | 52 days |
| 1926 | 28 days |
| 1927 | 67 days |
| 1928 | 71 days |
| 1929 | 23 days |
| 1930 | 27 days |
| 1931 | 46 days |
| 1932 | 32 days |
| 1933 | 30 days |
| 1934 | 17 days |
| 1935 | 22 days |
| 1936 | 52 days |
| 1937 | 30 days |
| 1938 | 15 days |
| 1939 | 24 days |
| 1940 | 86 days |
| 1941 | 42 days |
| 1942 | 73 days |
| 1943 | 47 days |
| 1944 | 31 days |
| 1945 | 34 days |
| 1946 | 37 days |
| 1947 | 14 days |
| 1948 | 80 days |
| 1949 | 55 days |
| 1950 | 23 days |
| 1951 | 43 days |
| 1952 | 34 days |
| 1953 | 52 days |
| 1954 | 29 days |
| 1955 | 70 days |
| 1956 | 31 days |
| 1957 | 45 days |
| 1958 | 45 days |
| 1959 | 49 days |
| 1960 | 33 days |
| 1961 | 45 days |
| 1962 | 107 days |
| 1963 | 54 days |
| 1964 | 34 days |
| 1965 | 34 days |
| 1966 | 43 days |
| 1967 | 32 days |
| 1968 | 40 days |
| 1969 | 23 days |
| 1970 | 46 days |
| 1971 | 21 days |
| 1972 | 42 days |
| 1973 | 35 days |
| 1974 | 61 days |
| 1975 | 75 days |
| 1976 | 47 days |
| 1977 | 64 days |
| 1978 | 51 days |
| 1979 | 42 days |
| 1980 | 38 days |
| 1981 | 54 days |
| 1982 | 59 days |
| 1983 | 43 days |
| 1984 | 38 days |
| 1985 | 56 days |
| 1986 | 30 days |
| 1987 | 39 days |
| 1988 | 23 days |
| 1989 | 22 days |
| 1990 | 104 days |
| 1991 | 50 days |
| 1992 | 69 days |
| 1993 | 103 days |
| 1994 | 27 days |
| 1995 | 30 days |
| 1996 | 29 days |
| 1997 | 29 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.
Rainfall Return Levels
70 years, 1924 to 1996A day with at least 78.2 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 264.6 mm (10.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 78.2 mm (3.1 in) | |
| 5 years | 115.5 mm (4.5 in) | |
| 10 years | 144.6 mm (5.7 in) | |
| 25 years | 187.2 mm (7.4 in) | |
| 50 years | 223.7 mm (8.8 in) | |
| 100 years | 264.6 mm (10.4 in) | Longer than the 70 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, 70 years of values from 1924 to 1996.
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: 237.3 mm (9.3 in) in 1956; 226.0 mm (8.9 in) in 1985; 223.3 mm (8.8 in) in 1987.
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).