Department of Water Affairs, Namibia HYMONTH V86 Output 29/07/2010 Site 0787131 Ongava Onuea Site 0787131.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 1951/52 [ ] [ ] 26.2 30.9 144.5 12.8 11.7 0.0 23.3 0.0 0.0 0.3 [25.0] [249.7] 61 1952/53 29.0 28.5 40.7 65.5 80.9 64.6 16.8 14.8 0.0 0.0 0.0 0.0 28.4 340.8 0 1953/54 47.2 44.7 68.0A 52.6 111.2 140.1 49.8 0.3 0.0 0.0 0.0 20.5 44.5A 534.4A 0 1954/55 6.5 42.8 97.9 107.7A 112.3 79.4 34.6 6.3 10.8 0.0 0.0 0.0 41.5A 498.3A 0 1955/56 33.5 81.4 24.3 63.0 101.8A 81.9 13.7 0.0 0.0 1.1 0.0 3.0 33.6A 403.7A 0 1956/57 4.4 33.1 32.2 63.3 63.7A 62.9 52.1 13.7 0.0 6.5 0.0 14.2 28.8A 346.1A 0 1957/58 39.1 86.0 100.9 85.6 34.5A 47.8 9.0 0.0 0.0 0.0 0.0 2.0 33.7A 404.9A 0 1958/59 1.0 19.2 80.1 34.5 89.5 35.3 8.4 1.0 0.0 0.0 0.0 0.0 22.4 269.0 0 1959/60 1.5 77.0 21.2 9.5 210.2 12.9 34.5 34.7 0.0 0.0 0.0 0.0 33.5 401.5 0 1960/61 1.0 57.8 3.9 38.4 27.8 70.8 68.1 38.3 15.3 0.0 0.0 0.0 26.8 321.4 0 1961/62 1.2 95.6 63.3 28.8 96.7 4.7 13.8 0.0 0.0 0.1 6.7 0.0 25.9 310.9 0 1962/63 40.7 12.4 34.5 216.2 22.0 66.0 111.2 5.5 0.0 0.0 0.0 0.0 42.4 508.5 0 1963/64 12.0 126.6A 10.6 42.4 23.1 34.9 17.8 1.1 0.0 0.0 0.0 0.0 22.4A 268.5A 0 1964/65 10.9 17.7 42.3 31.0 23.1 49.1 96.9 0.0 0.0 0.0 0.0 1.0 22.7 272.0 0 1965/66 18.0 73.9 5.1 172.8 94.8 13.5 40.8 0.0 0.7 0.0 0.0 62.5 40.2 482.1 0 1966/67 9.2 1.1 65.3 110.4 102.5A 50.0 21.6 19.0 0.0 0.0 0.0 1.0 31.7A 380.1A 0 1967/68 3.0 77.1 58.8 87.5 8.0 208.2 26.5A 22.0 10.0 0.0 0.0 0.0 41.8A 501.1A 0 1968/69 2.0 49.1 38.0 60.5A 97.5 69.5 42.6A 0.8 0.0 0.0 0.1 3.0 30.3A 363.1A 0 1969/70 0.0 64.0 23.6 115.0A 81.4 56.1 30.5 0.0 0.2 0.0 0.0 0.0 30.9A 370.8A 0 1970/71 40.5 21.0 66.1 47.0 145.6 69.6 39.5 20.0 1.0 0.0 0.0 0.0 37.5 450.3 0 1971/72 5.5 19.5 7.0 177.3 5.5 183.1A 38.1 0.0 0.0 0.0 0.0 0.0 36.3A 436.0A 0 1972/73 6.5 8.5 19.6 22.2 119.4 158.5 40.5A 0.0 0.5 1.0 0.0 0.0 31.4A 376.7A 0 1973/74 32.7 38.9 59.5 160.2 182.0 64.5 57.6 0.0 6.0 0.0 0.0 23.5 52.1 624.9 0 1974/75 14.5 63.0 65.1 70.6 103.0 155.1A 36.0 26.0 0.0 0.0 0.0 0.0 44.4A 533.3A 0 1975/76 2.6 36.8 18.9 271.4 143.6 94.2 54.7 1.5 0.0 0.0 0.0 3.2 52.2 626.9 0 1976/77 1.0 13.5 27.0 108.2A 166.5A 65.0A 187.0 4.5 0.0 0.0 0.0 0.1 47.7A 572.8A 0 1977/78 32.0 20.4 152.5 321.0 384.0A 35.2 29.5 0.0 0.0 0.0 5.0 7.0 82.2A 986.6A 0 1978/79 7.0 57.6 26.7 219.4 227.1A 7.1 19.2 10.5 2.5 2.0 11.0 6.0 49.7A 596.1A 0 1979/80 84.6 80.2 53.0 41.4 239.0 93.0 20.0 0.0 0.0 0.0 0.5 39.3 54.3 651.0 0 1980/81 16.0 37.0 54.5 27.5 16.0 70.0 15.5 0.0 0.0 0.0 1.5 0.0 19.8 238.0 0 1981/82 0.0 63.3 37.4 48.0 88.1 107.9 20.5 0.0 0.4 0.0 0.0 1.0 30.6 366.6 0 1982/83 5.3 6.6 57.0 74.8 6.8 52.7 42.2 18.4 7.0 0.0 0.0 0.0 22.6 270.8 0 1983/84 7.2 84.3 112.9 17.7 22.6 86.8 90.8 14.5 0.0 0.0 0.0 0.0 36.4 436.8 0 1984/85 6.1 47.0 19.0 58.7 60.4 42.4 35.5 0.0 0.0 0.0 0.0 0.0 22.4 269.1 0 1985/86 15.5 41.4 50.0 57.5 114.6 44.1 32.3 0.0 3.5 0.0 0.0 8.8 30.6 367.7 0 2589 Tot ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data [ ] Data Not Recorded Department of Water Affairs, Namibia HYMONTH V86 Output 29/07/2010 Site 0787131 Ongava Onuea Site 0787131.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 1986/87 29.3 37.6 26.2 14.2 139.0 16.6 43.0 1.5 0.0 0.0 0.0 0.0 25.6 307.4 0 1987/88 26.9 10.8 54.2 113.6 96.3 36.5 81.2 5.4 0.0 0.0 0.0 0.0 35.4 424.9 0 1988/89 11.2 7.1 75.2 98.6 201.5 1.8 7.6 5.5 0.0 0.0 0.0 0.0 34.0 408.5 0 1989/90 0.1 17.2 0.3 149.6 29.6 92.3 29.7 0.0 0.0 0.0 0.0 0.0 26.6 318.8 0 1990/91 21.2 45.8 31.5 129.3 214.3 80.4 0.0 0.0 0.0 0.0 0.0 57.5 48.3 580.0 0 1991/92 31.0 23.6 80.9 9.8 50.2 57.1 8.1 0.0 0.0 0.0 0.0 8.0 22.4 268.7 0 1992/93 11.8 1.6 71.8 94.0 209.6 60.4 33.0 [ ] [ ] [ ] [ ] [ ] [68.9] [482.2] 153 1993/94 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1994/95 [ ] [ ] [ ] 1.0A 103.0A 73.3A 7.0A 0.0 0.0 0.0 0.0 4.0A [20.9] [188.3] 92 1995/96 6.0A 5.5A 22.0A [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [11.2] [33.5] 274 1996/97 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1997/98 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1998/99 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1999/ 0 [ ] [ ] [ ] 50.5 337.5 [ ] 102.5 [ ] [ ] [ ] [ ] [ ] [163.5] [490.5] 276 2000/ 1 7.3 3.5 15.0 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [8.6] [25.8] 273 2589 Tot Mean 15.9A 41.4A 46.4A 86.3A 112.1A 67.6A 40.3A 6.3 1.9 0.3 0.6 6.3A [37.4] [403.5] Mean Med. 9.2A 37.6A 39.3A 63.1A 99.6A 64.5A 33.8A 0.6 0.0 0.0 0.0 0.0A Med. Max 84.6A 126.6A 152.5A 321.0A 384.0A 208.2A 187.0A 38.3 23.3 6.5 11.0 62.5A [163.5] [986.6] Max Min 0.0A 1.1A 0.3A 1.0A 5.5A 1.8A 0.0A 0.0 0.0 0.0 0.0 0.0A [8.6] [25.8] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 43 43 44 44 44 43 44 42 42 42 42 42 46 46 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data [ ] Data Not Recorded