Department of Water Affairs, Namibia HYMONTH V86 Output 28/07/2010 Site 0384408 Rishon Site 0384408.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 1955/56 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 1.2 0.8 0.0 0.0 [0.5] [2.0] 244 1956/57 5.5 5.7 5.5 51.9 20.0 57.5 1.2 2.2 0.0 1.4 0.1 7.0 13.2 158.0 0 1957/58 0.0 0.7 29.8 15.4 48.5 1.0 26.1 4.0 0.0 0.0 0.0 7.5 11.1 133.0 0 1958/59 0.0 0.0 35.6 12.7 21.0 3.0 18.5 5.5 15.0 1.0 3.2 0.0 9.6 115.5 0 1959/60 0.6 8.7 0.0 3.0 61.5 76.4 0.0 0.0 4.2 0.0 4.2 7.0 13.8 165.6 0 1960/61 0.0 6.0 11.5 15.1 10.8 36.9 108.5 0.0 42.0 11.9 0.0 3.8 20.5 246.5 0 1961/62 0.0 14.2 0.0 0.0 79.7 6.0 9.5 0.0 0.0 0.0 26.2 0.0 11.3 135.6 0 1962/63 2.0 4.5 0.0 140.5 20.0 62.7 31.0 7.8 0.0 0.0 0.0 14.0 23.5 282.5 0 1963/64 18.5 31.2 11.0 0.0 3.5 9.0 0.0 0.0 4.8 0.0 6.6 3.5 7.3 88.1 0 1964/65 0.0 0.0 14.0 44.0 7.1 67.0 47.0 0.0 0.0 0.0 0.0 6.0 15.4 185.1 0 1965/66 1.5 0.0 0.0 50.9 18.2 16.4 15.3 2.7 0.0 0.0 0.0 0.0 8.7 105.0 0 1966/67 26.4 0.0 7.2 42.9 32.8 98.3 29.2 28.2 3.2 0.0 0.0 0.5 22.4 268.7 0 1967/68 0.0 36.3 5.0 0.0 16.0 118.1 0.0 100.8 0.0 0.0 0.0 5.2 23.5 281.4 0 1968/69 0.0 18.5 16.5 4.6 59.0 31.0 13.5 0.0 0.0 0.0 0.0 3.5 12.2 146.6 0 1969/70 0.0 0.0 0.0 0.0 55.2 0.0 6.5 0.0 0.0 0.0 9.9 0.0 6.0 71.6 0 1970/71 21.0 0.0 14.0 3.0 92.3 31.9 0.0 0.0 0.0 0.0 1.2 0.0 13.6 163.4 0 1971/72 2.4 6.0 15.2 147.5 0.0 11.0 27.0 0.0 0.0 0.0 0.0 0.0 17.4 209.1 0 1972/73 0.0 19.4 0.0 0.0 61.5 65.9 2.3 0.0 1.0 20.5 0.0 0.0 14.2 170.6 0 1973/74 30.0 0.0 1.0 196.9 126.0 37.5 0.0 1.5 0.0 0.0 0.0 0.0 32.7 392.9 0 1974/75 0.0 46.0 7.5 20.0 7.5 59.0 0.0 [ ] [ ] [ ] [ ] [ ] [20.0] [140.0] 153 1975/76 [ ] 8.4 11.5 141.3 164.8 159.0 20.3 4.5 0.4 0.0 0.0 0.0 [46.4] [510.2] 31 1976/77 8.6 0.0 0.0 0.0 82.5 62.0 40.0 0.0 0.0 0.0 0.0 7.0 16.7 200.1 0 1977/78 0.0 0.0 0.0 59.4 38.0 55.0 25.0 0.0 0.0 0.0 0.4 15.5 16.1 193.3 0 1978/79 0.0 13.0 7.0 50.0 24.0 0.0 26.0 7.0 23.0 15.5 0.0 5.0 14.2 170.5 0 1979/80 14.0 6.0 7.5 15.5A 47.0 91.5 2.0 0.0 3.0 0.0 6.0 15.0 17.3A 207.5A 0 1980/81 0.0 0.0 35.0 0.0 38.0 57.5 0.0 0.0 1.0 0.0 8.0 0.0 11.6 139.5 0 1981/82 4.0 0.0 5.0 0.0 37.5 10.5 39.0 0.0 4.5 8.5 0.0 2.0 9.3 111.0 0 1982/83 17.0 0.0 9.5 15.5 0.0 23.5 24.5 7.5 7.5 0.0 0.0 5.0 9.2 110.0 0 1983/84 0.0 48.5 24.5 0.0 0.0 55.0 22.5 0.0 0.0 2.0 0.0 0.0 12.7 152.5 0 1984/85 22.0 3.0 0.0 30.0 26.0 10.5 5.0 0.0 0.0 0.0 0.0 9.0 8.8 105.5 0 1985/86 15.0 84.5 76.0 17.0 16.0 80.5 34.0 0.0 27.0 0.0 0.0 8.0 29.8 358.0 0 1986/87 17.0 0.0 0.0 0.0 18.5 10.0 6.0 0.0 0.0 11.0 0.0 30.0 7.7 92.5 0 1987/88 10.5 11.5 0.0 25.0 93.5 199.5 10.5 8.0 0.0 0.0 0.0 0.0 29.9 358.5 0 1988/89 0.0 13.0 44.0 145.0 42.0 35.0 76.5 7.0 0.0 0.0 0.0 0.0 30.2 362.5 0 1989/90 0.0 0.0 5.0 8.5 24.5 38.0 34.0 0.0 0.0 0.0 0.0 0.0 9.2 110.0 0 916 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 28/07/2010 Site 0384408 Rishon Site 0384408.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 1990/91 0.0 0.0 45.0 30.0 25.0 48.0 0.0 0.0 0.0 0.0 0.0 69.5 18.1 217.5 0 1991/92 4.0 15.0 25.5 3.0 0.0 12.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 59.5 0 1992/93 11.0 21.5 0.0 19.0 14.0 21.0 100.5 15.0 0.0 1.0 0.0 0.0 16.9 203.0 0 1993/94 9.0 21.0 0.0 5.0 54.5 18.0 31.0 0.0 0.0 0.0 0.0 0.0 11.5 138.5 0 1994/95 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1995/96 [ ] [ ] [ ] 15.0 64.0 6.0 6.5 4.0 0.0 5.1 0.0 7.0 [12.0] [107.6] 92 1996/97 9.0 68.0 35.0 36.0 12.5 38.0 0.0 27.0 1.0 1.7 0.0 0.5 19.1 228.7 0 1997/98 0.0 2.0 36.5 26.5 16.0 34.0 0.0 0.0 0.0 0.0 3.0 3.5 10.1 121.5 0 1998/99 17.0 12.0 2.5 24.0 9.5 16.0 12.5 9.8 0.0 0.0 [ ] 2.0 [9.6] [105.3] 31 1999/ 0 0.0 22.0 69.5 132.0 48.0 134.0 3.9 0.0 0.0 0.0 0.0 0.5 34.2 409.9 0 916 Tot Mean 6.5 13.0 14.6 36.0A 38.1 46.6 19.9 5.8 3.2 1.9 1.6 5.5 [16.0] [187.1] Mean Med. 1.5 6.0 7.3 15.5A 25.0 36.9 12.5 0.0 0.0 0.0 0.0 2.0 Med. Max 30.0 84.5 76.0 196.9A 164.8 199.5 108.5 100.8 42.0 20.5 26.2 69.5 [46.4] [510.2] Max Min 0.0 0.0 0.0 0.0A 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 [0.5] [2.0] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 41 42 42 43 43 43 43 42 43 43 42 43 44 44 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data [ ] Data Not Recorded