Department of Water Affairs, Namibia HYMONTH V86 Output 29/07/2010 Site 0654802 Bitterwasser Site 0654802.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 1934/35 [ ] [ ] [ ] 19.7 86.0 11.8 24.2 68.9 0.0 0.0 0.0 9.9 [24.5] [220.5] 92 1935/36 0.0 1.0 9.7 69.0 4.3 53.0 3.2 25.0 0.0 0.0 0.0 0.0 13.8 165.2 0 1936/37 0.9 0.0 43.1 94.4 102.8 17.5 10.9 0.0 0.0 0.0 0.0 0.0 22.5 269.6 0 1937/38 6.7 34.7 17.0 88.7 21.2 4.1 31.6 33.0 2.4 0.0 0.0 0.0 20.0 239.4 0 1938/39 0.0 57.4 36.3 5.4 69.4 140.3 49.3 0.0 3.3 0.0 1.7 7.0 30.8 370.1 0 1939/40 29.3 12.3 14.0 42.9 26.5 47.5 13.8 [ ] 7.7 0.0 0.0 8.3 [18.4] [202.3] 31 1940/41 0.0 14.3 35.2 6.3 12.7 7.4 0.0 0.0 0.0 0.0 0.0 0.0 6.3 75.9 0 1941/42 1.0 0.0 0.0 16.3 143.2 64.9 25.5 0.3 0.0 0.0 0.0 6.1 21.4 257.3 0 1942/43 7.1 2.3 73.6 24.6 20.8 3.4 67.8 0.0 0.0 0.0 7.8 0.0 17.3 207.4 0 1943/44 0.0 15.5 88.5 141.3 0.0 4.6 0.0 2.5 0.0 0.0 0.0 0.0 21.0 252.4 0 1944/45 6.6 1.0 4.6 33.6 1.3 31.7 2.8 0.0 0.0 0.0 0.0 0.0 6.8 81.6 0 1945/46 0.0 31.3 18.4 7.6 12.7 11.9 8.4 1.5 0.0 0.0 0.0 0.3 7.7 92.1 0 1946/47 0.0 0.0 26.2 45.9 12.4 49.5 10.1 2.8 14.7 0.0 0.0 0.0 13.5 161.6 0 1947/48 0.3 9.9 6.1 48.1 68.3 30.5 8.4 0.0 0.0 6.6 1.8 0.0 15.0 180.0 0 1948/49 4.8 24.0 9.1 41.6 5.4 165.8 14.6 0.0 3.3 0.0 0.0 0.0 22.4 268.6 0 1949/50 12.2 16.8 9.1 94.8 48.2 91.3 83.0 15.0 0.5 0.0 0.0 0.0 30.9 370.9 0 1950/51 0.0 7.6 32.1 15.8 30.2 49.0 11.9 4.9 0.0 0.0 0.0 4.4 13.0 155.9 0 1951/52 4.6 55.1 3.0 12.4 133.0 0.0 1.5 0.0 1.0 0.0 0.0 0.0 17.6 210.6 0 1952/53 6.1 11.8 0.0 6.1 47.0 58.6 60.8 0.0 0.0 0.0 0.0 0.0 15.9 190.4 0 1953/54 3.5 0.9 20.4 34.5 23.6 199.3 13.8 0.0 0.1 0.0 0.0 5.0 25.1 301.1 0 1954/55 0.0 9.0 22.0 94.9 65.2 36.0 25.4 0.8 14.5 0.0 0.0 0.0 22.3 267.8 0 1955/56 1.8 18.0 21.0 29.0 109.5 102.0 3.0 0.0 0.0 14.0 0.0 0.0 24.9 298.3 0 1956/57 3.2 12.4 10.5 33.8 59.4 91.1 16.5 1.0 0.0 1.8 0.6 4.0 19.5 234.3 0 1957/58 10.0 42.1 42.5 121.3 22.6 27.5 9.9 0.0 0.0 0.0 0.0 0.0 23.0 275.9 0 1958/59 0.4 0.0 21.0 16.5 46.3 51.5 4.0 0.0 0.0 0.0 2.5 0.0 11.8 142.2 0 1959/60 0.0 2.4 14.3 9.8 281.8 39.3 10.5 5.5 0.0 0.0 0.0 0.5 30.3 364.1 0 1960/61 0.0 6.5 4.0 22.7 40.0 120.5 52.5 5.3 19.0 0.0 0.0 11.5 23.5 282.0 0 1961/62 0.0 18.0 3.0 3.0 34.5 0.0 3.8 0.0 0.0 0.0 9.3 0.0 6.0 71.6 0 1962/63 33.0 3.5 1.0 253.0 0.4 87.5 71.0 17.0 0.0 0.0 0.0 0.0 38.9 466.4 0 1963/64 5.0 40.5 8.5 2.0 14.0 15.9 17.5 0.0 0.0 0.0 0.0 0.0 8.6 103.4 0 1964/65 3.8 0.8 15.5 37.5 11.2 33.6 67.0 0.0 0.5 0.0 0.0 22.5 16.0 192.4 0 1965/66 6.0 20.6 0.0 49.5 13.5 39.5 40.0 0.0 2.0 0.0 0.0 14.0 15.4 185.1 0 1966/67 10.3 0.0 66.5 80.5 101.8 63.5 24.0 3.8 0.0 0.0 0.0 0.0 29.2 350.4 0 1967/68 0.0 40.5 8.0 27.0 3.7 40.6 0.2 16.0 6.0 0.0 0.0 0.0 11.8 142.0 0 1968/69 6.0 31.5 14.0 25.0 59.6 64.7 18.8 0.0 0.0 0.0 0.0 0.2 18.3 219.8 0 2193 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 29/07/2010 Site 0654802 Bitterwasser Site 0654802.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 1969/70 5.0 1.0 3.0 15.0 74.8 0.5 6.5 0.0 0.5 0.0 0.0 0.0 8.9 106.3 0 1970/71 7.9 1.0 20.1 27.9 102.0 26.2 4.1 2.0 0.0 0.0 0.0 0.0 15.9 191.2 0 1971/72 3.0 36.1 1.0 90.3 9.2 151.5 42.1 0.0 0.0 0.0 0.0 0.0 27.8 333.2 0 1972/73 0.4 6.0 0.0 6.5 31.0 44.6 6.3 0.0 0.0 0.3 0.0 0.0 7.9 95.1 0 1973/74 48.7 1.8 30.0 346.5 123.2 45.6 74.7 1.1 2.0 0.0 0.1 0.0 56.1 673.7 0 1974/75 14.1 9.5 18.3 13.8 58.5 88.5 3.3 1.6 0.0 0.0 0.0 0.0 17.3 207.6 0 1975/76 0.0 25.3 38.5 150.3 64.5 183.4 31.2 4.0 0.3 0.0 0.6 0.0 41.5 498.1 0 1976/77 8.2 0.0 1.9 48.8 189.2 36.6 78.4 1.0 0.0 0.0 0.0 0.0 30.3 364.1 0 1977/78 0.0 3.0 6.3 43.8 148.0 40.0 7.0 0.0 0.0 0.0 0.0 6.0 21.2 254.1 0 1978/79 0.0 6.2 2.5 44.0 83.5 0.0 10.5 1.8 13.0 1.5 3.5 5.4 14.3 171.9 0 1979/80 4.5 18.3 14.0 14.0 31.3 116.6 3.5 0.0 0.0 0.0 0.6 3.0 17.2 205.8 0 1980/81 8.0 10.5 12.5 15.5 27.0 56.5 1.3 0.0 0.0 0.0 0.0 0.0 10.9 131.3 0 1981/82 0.0 0.0 0.0 15.0 127.5 0.1 4.9 0.4 0.1 0.0 0.0 0.6 12.4 148.6 0 1982/83 14.1 18.1 57.8 21.0 1.8 25.0 29.0 2.0 1.0 0.0 0.0 0.0 14.1 169.8 0 1983/84 4.3 30.8 68.1 0.0 48.8 47.6 21.0 19.5 0.0 0.0 0.0 0.0 20.0 240.1 0 1984/85 6.1 18.5 0.0 34.7 8.0 48.6 26.5 0.0 0.0 0.0 0.0 0.0 11.9 142.4 0 1985/86 7.6 12.3 14.8 47.4 18.0 26.0 8.0 1.7 0.0 0.1 0.0 0.8 11.4 136.7 0 1986/87 63.6 11.6 14.3 1.5 169.5 9.9 23.5 3.5 0.0 0.0 0.0 0.0 24.8 297.4 0 1987/88 10.8 [ ] 6.7 83.7 112.0 12.5 63.1 12.0 0.0 0.0 0.0 0.0 [27.3] [300.8] 30 1988/89 0.6 12.5 15.0 133.8 73.0 19.5 48.5 7.6 0.0 0.0 0.0 0.0 25.9 310.5 0 1989/90 0.0 0.4 0.0 25.2 34.2 37.1 39.5 0.0 1.1 0.0 0.0 0.0 11.5 137.5 0 1990/91 0.0 13.0 47.5 113.5 48.6 66.1 0.0 0.0 0.0 0.0 0.0 7.5 24.7 296.2 0 1991/92 2.1 4.0 76.3 8.5 11.0 69.1 0.3 0.0 0.0 0.0 0.0 0.0 14.3 171.3 0 1992/93 0.4 3.0 9.0 49.0 42.0 78.6 34.5 0.0 0.0 0.3 0.3 0.0 18.1 217.1 0 1993/94 2.6 33.2 2.0 44.5 36.0 1.5 [ ] [ ] [ ] [ ] [ ] [ ] [20.0] [119.8] 183 1994/95 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1995/96 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 366 1996/97 [ ] [ ] [ ] 0.0 60.3 45.0 18.3 5.7 0.0 0.0 [ ] [ ] [18.5] [129.3] 153 1997/98 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1998/99 [ ] [ ] [ ] 34.5 105.7 61.5 0.0 24.3 6.0 0.0 0.0 0.0 [25.8] [232.0] 92 1999/ 0 0.0 35.3 123.1 83.5 [ ] 100.4 42.2 0.0 [ ] [ ] [ ] [ ] [54.9] [384.5] 151 2000/ 1 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 2193 Tot Mean 6.2 14.5 21.3 50.3 57.6 52.3 23.1 4.8 1.6 0.4 0.5 2.0 [20.1] [230.7] Mean Med. 3.1 11.6 14.0 33.8 44.1 44.6 14.2 0.3 0.0 0.0 0.0 0.0 Med. Max 63.6 57.4 123.1 346.5 281.8 199.3 83.0 68.9 19.0 14.0 9.3 22.5 [56.1] [673.7] 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 [6.0] [71.6] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 60 59 60 63 62 63 62 61 61 61 60 60 63 63 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... [ ] Data Not Recorded