Department of Water Affairs, Namibia HYMONTH V86 Output 29/07/2010 Site 0785288 Okatumba Site 0785288.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 1959/60 0.0 18.1 9.4 31.5 182.5 17.6 0.0 30.4 0.0 0.0 0.0 0.0 24.1 289.5 0 1960/61 0.0 56.2 2.2 45.9 51.0 65.1 23.8 0.0 21.9 0.0 0.0 0.0 22.2 266.1 0 1961/62 0.0 31.6 5.3 18.4 118.4 0.0 0.0 0.0 0.0 0.0 20.0A 0.0 16.1A 193.7A 0 1962/63 44.6 0.3 3.4 300.9 10.3 127.5 91.0 9.0 0.0 0.0 0.0 0.0 48.9 587.0 0 1963/64 7.8 111.6 17.7 16.1 59.2 39.5 36.7 0.0 0.0 0.0 0.0 0.0 24.1 288.6 0 1964/65 0.0 6.8 47.5 37.9 69.6 44.9 109.8 0.0 0.0 0.0 0.0 0.0 26.4 316.5 0 1965/66 8.8 19.0 0.0 209.6 113.4 46.2 44.3 0.0 0.0 0.0 0.0 55.4 41.4 496.7 0 1966/67 5.0 9.0 108.6 53.8 159.1 23.6 43.4 25.4 0.0 0.0 0.0 0.0 35.7 427.9 0 1967/68 0.0 57.9 48.8 67.1 25.5 215.9 0.0 55.6 0.0 0.0 0.0 0.0 39.2 470.8 0 1968/69 7.8 56.7 13.8 24.5 79.0 55.4 16.9 1.4 0.0 0.0 0.0 0.0 21.3 255.5 0 1969/70 0.0 13.1 19.9 41.8 73.4 8.2 4.6 0.0 0.0 0.0 0.0 0.0 13.4 161.0 0 1970/71 53.9 0.0 120.3 63.0 134.2 78.9 39.0 55.6 3.4 0.0 0.0 0.0 45.7 548.3 0 1971/72 0.0 16.0 0.0 92.2 0.0 157.7 140.1 0.0 0.0 0.0 0.0 0.0 33.8 406.0 0 1972/73 12.0 7.3 0.0 33.7 18.9 143.2 56.3 0.0 0.0 0.0 0.0 0.0 22.6 271.4 0 1973/74 78.4 17.0 9.0 231.9 199.1 57.7 109.8 1.5 0.0 0.0 0.0 0.0 58.7 704.4 0 1974/75 25.2 47.2 11.3 59.4 73.1 200.1 21.0 16.7 0.0 0.0 0.0 0.0 37.8 454.0 0 1975/76 0.0 2.0 55.5 215.8 50.2 95.7 8.7 0.0 0.0 0.0 0.0 0.0 35.7 427.9 0 1976/77 0.0 0.0 7.2 75.3 163.1 55.2 89.5 0.0 0.0 0.0 0.0 0.0 32.5 390.3 0 1977/78 40.2 8.5 32.6 152.7 139.8 51.1 25.8 8.5 0.0 0.0 0.0 0.0 38.3 459.2 0 1978/79 0.0 0.0 7.9 36.9 168.3 24.9 36.0 26.5 0.0 0.0 0.0 5.6 25.5 306.1 0 1979/80 3.3 46.9 14.0 51.6 134.5 188.1 0.0 0.0 0.0 0.0 0.0 24.5 38.6 462.9 0 1980/81 0.0 0.0 0.0 5.1 26.5 36.0 39.0 0.0 0.0 0.0 0.0 0.0 8.9 106.6 0 1981/82 0.0 0.0 0.0 10.5 53.0 12.0 8.0 0.0 0.0 0.0 0.0 0.0 7.0 83.5 0 1982/83 11.0 20.0 72.5 115.0 0.0 21.0 65.5 8.0 17.5 0.0 0.0 0.0 27.5 330.5 0 1983/84 0.0 56.0 87.5 0.0 27.0 47.0 51.0 4.0 0.0 0.0 0.0 0.0 22.7 272.5 0 1984/85 8.0 7.0 10.0 25.0 94.0 29.0 77.0 0.0 0.0 0.0 0.0 0.0 20.8 250.0 0 1985/86 52.0 28.0 24.0 117.0 56.0 134.0 15.5 0.0 0.0 0.0 0.0 11.0 36.5 437.5 0 1986/87 32.0 3.0 15.0 24.0 159.0 26.5 62.0 2.0 0.0 0.0 0.0 0.0 27.0 323.5 0 1987/88 4.0A 0.0 42.0A 125.0 53.0 78.0 36.0 25.0 0.0 0.0 0.0 0.0 30.3A 363.0A 0 1988/89 2.0 28.0 147.0 67.5 105.0 0.0 14.0 0.0 0.0 0.0 0.0 0.0 30.3 363.5 0 1989/90 0.0 0.0 0.0 67.0 46.0 54.0 67.0 0.0 0.0 0.0 0.0 0.0 19.5 234.0 0 1990/91 0.0 38.0 15.5 104.5 147.0 48.0 0.0 0.0 0.0 0.0 0.0 28.0 31.8 381.0 0 1991/92 5.0 57.0 114.0 42.0 13.0 41.0 0.0 [ ] [ ] [ ] [ ] [ ] [38.9] [272.0] 153 153 Tot Mean 12.2A 23.1 32.2A 77.7 84.9 67.4 40.4 8.4 1.3 0.0 0.6A 3.9 [29.8] [351.6] Mean Med. 3.3A 16.0 14.0A 53.8 73.1 48.0 36.0 0.0 0.0 0.0 0.0A 0.0 Med. Max 78.4A 111.6 147.0A 300.9 199.1 215.9 140.1 55.6 21.9 0.0 20.0A 55.4 [58.7] [704.4] Max Min 0.0A 0.0 0.0A 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0A 0.0 [7.0] [83.5] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 33 33 33 33 33 33 33 32 32 32 32 32 33 33 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data [ ] Data Not Recorded