Department of Water Affairs, Namibia HYMONTH V86 Output 28/07/2010 Site 0529452 Gibeon Reservaat Site 0529452.RN Variable 10.00 Total Rainfall in Millimetres Figures are for period starting 800 hours. Mean Annual Missing Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Monthly Total Days 1935/36 [ ] [ ] [ ] 0.1 1.0 72.3 4.1 10.0 0.0 0.0 0.0 0.0 [9.7] [87.5] 92 1936/37 0.1 0.0 14.0 14.0 68.0 30.5 0.0 0.0 0.0 0.0 0.0 0.0 10.5 126.6 0 1937/38 2.2 18.5 25.3 114.5 0.0 10.2 53.5 34.5 0.0 0.0 0.0 0.1 21.6 258.8 0 1938/39 0.0 59.9 0.0 26.0 184.1 120.0 41.5 0.0 6.0 [ ] [ ] [ ] [48.6] [437.5] 92 1939/40 26.0 11.5 7.1 12.2 65.5 30.7 0.0 [ ] 0.0 [ ] [ ] [ ] [19.1] [153.0] 123 1940/41 [ ] [ ] 11.9 11.1 28.8 5.6 0.0 0.0 0.0 0.0 0.0 0.0 [5.7] [57.4] 61 1941/42 18.0 2.8 [ ] 1.8 204.3 13.9 19.0 9.4 0.0 0.0 0.0 3.3 [24.8] [272.5] 31 1942/43 30.0 3.6 67.7 4.6 24.6 47.5 120.3 0.0 0.0 0.0 17.6 1.5 26.5 317.4 0 1943/44 0.0 27.4 46.1 137.9 1.0 12.1 0.0 1.5 [ ] 0.0 2.0 0.0 [20.7] [228.0] 30 1944/45 0.0 1.8 1.5 8.1 27.1 8.7 19.0 0.0 0.0 0.0 0.0 0.0 5.5 66.2 0 1945/46 0.0 7.6 16.2 5.8 21.1 16.8 0.0 0.0 0.0 0.0 0.0 0.0 5.6 67.5 0 1946/47 0.0 1.8 9.4 22.9 13.5 19.5 8.8 2.5 1.0 0.0 0.0 0.0 6.6 79.4 0 1947/48 0.5 0.0 3.8 14.0 53.8 20.8 29.2 0.0 0.0 0.0 0.0 0.0 10.2 122.1 0 1948/49 19.1 15.5 11.4 7.6 25.3 89.4 6.4 0.0 13.5 0.0 0.0 0.0 15.7 188.2 0 1949/50 0.8 1.0 0.0 12.7 78.6 142.4 16.7 0.0 0.0 0.0 0.0 1.6 21.2 253.8 0 1950/51 0.0 0.0 35.8 0.0 34.5 0.0 27.9 6.3 0.0 0.0 0.0 0.0 8.7 104.5 0 1951/52 0.0 16.5 0.0 2.6 135.1 2.5 24.4 5.1 7.6 0.0 0.0 0.0 16.2 193.8 0 1952/53 3.8 30.4 3.1 0.0 146.0 50.5 33.5 0.0 0.0 0.0 0.0 0.0 22.3 267.3 0 1953/54 19.3 0.0 48.5 20.5 36.5 78.0 2.5 2.5 0.0 0.0 0.0 0.0 17.3 207.8 0 1954/55 5.0 0.0 0.0 16.0 0.0 0.0 [ ] [ ] [ ] [ ] [ ] [ ] [3.5] [21.0] 183 1955/56 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.0 0.0 [0.0] [0.0] 305 1956/57 4.0 6.0 3.5 57.0 4.0 68.0 13.5 4.0 0.0 0.0 0.0 0.0 13.3 160.0 0 1957/58 0.0 61.5 117.0 4.5 27.0 18.0 0.0 0.0 0.0 0.0 0.0 0.0 19.0 228.0 0 1958/59 0.0 0.0 11.0 16.5 18.7 25.0 16.5 0.0 2.0 0.0 3.5 0.0 7.8 93.2 0 1959/60 0.0 5.5 0.0 24.0 33.5 29.0 9.0 4.5 0.0 0.0 0.0 0.0 8.8 105.5 0 1960/61 0.0 6.0 19.0 11.0 11.0 53.0 24.5 0.0 17.5 0.0 0.0 0.0 11.8 142.0 0 1961/62 0.0 37.5 6.5 0.0 37.2 0.0 0.0 0.0 0.0 0.0 3.0 0.0 7.0 84.2 0 1962/63 6.0 7.0 1.5 147.5 0.0 59.5 58.5 14.0 0.0 0.0 0.0 7.5 25.1 301.5 0 1963/64 6.5 21.0 4.0 0.0 6.5 8.5 3.5 0.0 0.0 0.0 0.0 0.0 4.2 50.0 0 1964/65 4.0 5.5 5.0 9.0 6.0 37.0 14.0 0.0 0.0 0.0 0.0 0.0 6.7 80.5 0 1965/66 0.0 0.0 7.0 7.0 59.0 38.0 7.5 0.0 8.0 0.0 0.0 0.0 10.5 126.5 0 1966/67 6.5 0.0 2.0 8.0 67.0 48.0 0.0 12.0 0.0 0.0 0.0 0.0 12.0 143.5 0 1967/68 0.0 23.0 0.0 0.0 0.0 133.5 0.0 10.5 3.5 0.0 0.0 0.0 14.2 170.5 0 1968/69 0.0 22.6 14.5 0.0 91.5 0.0 10.0 20.0 0.0 0.0 0.0 0.0 13.2 158.6 0 1969/70 0.0 5.0 0.0 9.0 31.0 4.0 12.0 0.0 0.0 0.0 0.0 0.0 5.1 61.0 0 2469 Tot ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... [ ] Data Not Recorded Department of Water Affairs, Namibia HYMONTH V86 Output 28/07/2010 Site 0529452 Gibeon Reservaat Site 0529452.RN Variable 10.00 Total Rainfall in Millimetres Figures are for period starting 800 hours. Mean Annual Missing Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Monthly Total Days 1970/71 11.0 0.0 10.0 28.0 35.0 40.0 0.0 0.0 0.0 0.0 0.0 0.0 10.3 124.0 0 1971/72 0.0 15.0 20.0 97.5 1.5 119.0 65.5 0.0 0.0 0.0 0.0 0.0 26.5 318.5 0 1972/73 0.0 0.0 0.0 0.0 42.0 85.0 14.5 0.0 0.0 2.6 0.0 0.0 12.0 144.1 0 1973/74 20.0 0.0 12.9 316.7 273.5 40.0 40.0 0.0 0.0 0.0 0.0 0.0 58.6 703.1 0 1974/75 0.0 11.0 13.5 28.5 4.0 118.0 0.0 0.0 0.0 0.0 0.0 0.0 14.6 175.0 0 1975/76 0.0 0.0 26.0 174.0 107.0 71.5 2.5 0.0 0.0 0.0 0.0 0.0 31.8 381.0 0 1976/77 7.0 0.0 9.0 0.0 98.0 34.0 0.0 0.0 0.0 0.0 0.0 0.0 12.3 148.0 0 1977/78 0.0 0.0 0.0 22.0 37.0 52.3 11.5 0.0 0.0 0.0 0.0 0.0 10.2 122.8 0 1978/79 0.0 18.0 0.0 44.5 68.0 0.0 10.5 0.0 3.4 0.0 0.0 0.0 12.0 144.4 0 1979/80 8.0 0.0 2.5 0.0 3.5 101.0 0.1 0.0 0.0 0.0 0.0 0.0 9.6 115.1 0 1980/81 0.0 4.5 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [2.3] [4.5] 304 1981/82 [ ] [ ] [ ] 0.0 45.8 1.5 12.6 0.0 0.0 0.0 0.0 0.0 [6.7] [59.9] 92 1982/83 8.5 0.0 42.7 7.1 4.0 13.0 24.5 0.0 0.0 0.0 0.0 0.0 8.3 99.8 0 1983/84 2.6 57.0 96.1 0.0 25.0 22.2 45.1 3.5 0.0 0.0 0.0 0.0 21.0 251.5 0 1984/85 0.0 33.2 2.3 13.8 17.0 40.5 21.0 0.0 0.0 0.0 0.0 0.0 10.6 127.8 0 1985/86 1.5 4.5 17.9 15.5 23.0 39.5 1.2 0.0 4.5 0.0 0.0 0.0 9.0 107.6 0 1986/87 25.5 0.0 4.0 0.0 82.5 0.0 24.0 2.5 0.0 0.0 0.0 0.0 11.5 138.5 0 1987/88 9.0 5.0 0.0 6.2 38.0 93.5 27.0 0.0 0.0 0.0 0.0 0.0 14.9 178.7 0 1988/89 0.0 17.5 14.5 67.0 99.5 17.5 15.7 18.2 0.0 0.0 0.0 0.0 20.8 249.9 0 1989/90 0.0 0.0 0.9 23.0 7.0 49.5 8.1 0.0 0.0 0.0 0.0 0.0 7.4 88.5 0 1990/91 0.0 0.0 5.5 15.5 16.5 8.0 3.0 0.0 0.0 0.0 0.0 27.0 6.3 75.5 0 1991/92 0.0 39.0 22.5 5.0 1.5 52.5 15.0 0.0 0.0 0.0 0.0 0.0 11.3 135.5 0 1992/93 0.0 15.0 0.0 38.5 13.0 47.5 25.0 0.0 0.0 6.5 0.0 0.0 12.1 145.5 0 1993/94 0.0 22.0 18.0 98.5 124.5 10.0 0.0 0.0 1.0 0.0 0.0 0.0 22.8 274.0 0 1994/95 0.0 25.0 5.5 0.0 69.5 20.0 0.0 0.0 0.0 0.0 0.0 0.0 10.0 120.0 0 1995/96 0.0 4.0 17.5 68.5 22.0 9.5 10.5 0.0 0.0 21.5 0.0 0.0 12.8 153.5 0 1996/97 6.0 29.1 39.0 73.0 17.5 167.0 0.0 0.0 0.0 0.0 0.0 7.5 28.3 339.1 0 1997/98 0.0 0.0 0.0 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0.0] [0.0] 273 1998/99 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1999/ 0 [ ] [ ] [ ] 53.5 325.5 144.0 42.5 0.0 0.0 0.0 [ ] [ ] [80.8] [565.5] 153 2000/ 1 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 2469 Tot Mean 4.3 11.8 15.1 31.5 51.5 44.1 16.6 2.7 1.2 0.5 0.5 0.8 [15.2] [170.4] Mean Med. 0.0 5.0 7.1 12.2 28.8 34.0 11.0 0.0 0.0 0.0 0.0 0.0 Med. Max 30.0 61.5 117.0 316.7 325.5 167.0 120.3 34.5 17.5 21.5 17.6 27.0 [80.8] [703.1] Max Min 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 [0.0] [0.0] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 59 59 58 61 61 61 60 59 59 58 58 58 64 64 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... [ ] Data Not Recorded