Department of Water Affairs, Namibia HYMONTH V86 Output 28/07/2010 Site 0611823 Twilight Site 0611823.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 1937/38 [ ] [ ] [ ] 63.6 12.4 6.4 46.0 30.0 11.0 0.0 [ ] [ ] [24.2] [169.4] 153 1938/39 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 10.8 1.5 0.0 [4.1] [12.3] 273 1939/40 23.5 13.0 8.4 34.1 31.7 13.7 3.6 0.0 4.1 0.0 0.0 9.5 11.8 141.6 0 1940/41 0.8 15.2 45.4 31.2 33.5 1.5 1.0 [ ] [ ] [ ] [ ] [ ] [18.4] [128.6] 153 1941/42 9.4 2.3 14.0 8.6 145.8 48.6 27.4 [ ] [ ] [ ] [ ] [ ] [36.6] [256.1] 153 1942/43 [ ] 0.0 51.7 30.3 10.4 30.2 59.2 0.0 [ ] 0.0 4.8 0.0 [18.7] [186.6] 61 1943/44 0.0 8.4 60.1 108.7 9.1 37.0 0.0 0.0 0.0 0.0 0.0 2.0 18.8 225.3 0 1944/45 0.0 4.1 1.0 15.0 3.3 5.4 3.0 [ ] [ ] [ ] [ ] [ ] [4.5] [31.8] 153 1945/46 0.0 8.3 23.8 8.9 13.4 5.6 5.3 9.4 0.0 0.0 0.0 0.0 6.2 74.7 0 1946/47 1.8 0.0 9.9 34.6 16.2 55.4 9.9 2.0 3.0 0.0 0.0 0.0 11.1 132.8 0 1947/48 0.0 0.5 48.9 29.0 112.7 39.4 3.5 0.0 0.0 19.1 1.0 0.0 21.2 254.1 0 1948/49 4.6 18.5 18.5 6.6 25.1 54.9 26.2 0.0 0.0 0.0 0.0 0.0 12.9 154.4 0 1949/50 11.0 1.3 13.0 23.7 41.2 150.4 14.7 5.1 0.0 0.0 0.0 0.0 21.7 260.4 0 1950/51 0.0 12.0 66.1 24.9 22.1 0.0 16.7 1.8 0.0 0.0 0.0 2.3 12.2 145.9 0 1951/52 1.8 57.2 15.7 4.1 142.1 0.0 0.0 0.0 5.6 0.0 0.0 0.3 18.9 226.8 0 1952/53 6.9 9.2 0.0 0.5 52.9 44.3 19.1 0.0 0.0 0.0 0.0 0.0 11.1 132.9 0 1953/54 6.0 0.0 74.7 7.3 20.3 148.0 15.5 3.0 0.0 0.0 0.0 1.5 23.0 276.3 0 1954/55 0.9 11.5 0.0 42.1 57.2 13.5 19.0 1.5 13.5 0.0 0.0 0.0 13.3 159.2 0 1955/56 0.3 25.5 10.1 21.7 121.0 50.2 1.0 0.9 0.1 10.0 0.0 0.0 20.1 240.8 0 1956/57 2.0 19.0 2.1 68.7 15.4 34.2 0.6 1.4 0.0 0.3 0.5 6.0 12.5 150.2 0 1957/58 4.6 43.5 32.1 37.4 14.9 10.6 1.6 0.1 0.0 0.0 0.0 38.0 15.2 182.8 0 1958/59 0.5 0.0 13.8 5.6 45.6 6.9 5.8 1.0 2.1 0.0 0.1 0.0 6.8 81.4 0 1959/60 1.0 1.3 2.3 8.0 125.8 59.9 0.6 2.0 0.7 0.0 0.0 0.6 16.9 202.2 0 1960/61 0.0 10.5 0.0 15.4 18.0 19.3 20.6 0.5 7.2 0.0 0.0 0.0 7.6 91.5 0 1961/62 0.0 57.6 21.7 0.0 64.0 0.5 1.6 0.0 0.0 0.0 3.5 0.0 12.4 148.9 0 1962/63 8.0 4.0 9.0 129.7 0.6 18.5 77.6 10.0 1.0 0.0 0.0 0.0 21.5 258.4 0 1963/64 7.8 20.5 12.7 0.0 8.9 27.0 0.0 1.5 0.0 0.0 0.2 0.0 6.5 78.6 0 1964/65 3.7 6.4 36.1 18.3 17.2 54.0 19.5 0.0 0.0 0.0 0.0 0.5 13.0 155.7 0 1965/66 0.8 6.5 0.0 54.3 3.9 24.2 12.1 0.0 3.5 0.0 0.0 6.0 9.3 111.3 0 1966/67 6.2 0.0 45.6 48.3 40.6 42.0 8.8 1.6 0.0 0.0 0.0 0.0 16.1 193.1 0 1967/68 0.0 35.8 6.6 11.2 12.8 61.2 0.0 9.4 6.0 0.0 0.0 0.0 11.9 143.0 0 1968/69 1.0 51.4 4.0 29.9 68.3 7.1 4.2 4.2 0.0 0.0 0.0 0.0 14.2 170.1 0 1969/70 0.0 5.2 0.1 21.5 77.5 0.2 12.2 0.0 0.2 0.0 0.0 0.0 9.7 116.9 0 1970/71 7.5 0.3 6.8 18.9 71.2 17.8 3.5 4.2 0.0 0.0 0.0 0.0 10.8 130.2 0 1971/72 6.0 23.5 1.0 74.2 12.2 110.0 51.7 0.0 0.0 0.0 0.0 0.0 23.2 278.6 0 1038 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 0611823 Twilight Site 0611823.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 1972/73 10.7 11.2 5.0 26.5 77.5 49.0 8.0 0.0 0.0 0.5 0.0 0.0 15.7 188.4 0 1973/74 37.6 4.0 20.7 158.1 105.0 25.5 62.8 0.0 1.0 0.0 0.0 8.0 35.2 422.7 0 1974/75 10.6 19.5 56.2 6.7 52.1 40.1 4.1 4.8 0.0 0.0 0.0 0.1 16.2 194.2 0 1975/76 0.0 13.6 12.2 193.3 69.9 113.3 12.0 9.5 0.8 0.0 0.9 0.0 35.5 425.5 0 1976/77 0.4 0.0 3.5 84.3 173.5A 27.1 23.3 2.0 0.0 0.0 0.0 0.1 26.2A 314.2A 0 1977/78 0.1 0.0 12.4 70.6 169.9 4.4 5.1 0.0 0.0 0.0 13.5 12.5 24.0 288.5 0 1978/79 0.0 1.1A 0.0 35.6 74.2 0.0 17.5 0.5 16.0 1.5 4.6 2.8 12.8A 153.8A 0 1979/80 7.1 26.4 28.4 11.8 31.6 78.0 1.5 0.0 0.0 0.0 1.8 0.0 15.6 186.6 0 1980/81 2.0 14.5 2.5 5.9 41.4 63.9 13.3 0.0 0.0 0.0 0.3 0.0 12.0 143.8 0 1981/82 0.2 0.0 8.5 2.0 30.4 11.0 3.5 1.1 0.5 0.7 0.0 2.7 5.1 60.6 0 1982/83 17.5 27.2 73.5 28.0 16.0 26.8 53.4 0.0 0.0 0.0 0.0 0.0 20.2 242.4 0 1983/84 0.5 2.5 42.4 0.0 0.0 41.1 6.6 11.2 0.0 0.0 0.0 0.0 8.7 104.3 0 1984/85 6.4 0.0 0.0 22.8 10.7 49.4 22.2 0.0 0.0 0.0 0.0 0.0 9.3 111.5 0 1985/86 14.5 1.7 34.1 12.3 35.1 24.7 17.2 0.0 2.0 0.0 0.0 0.0 11.8 141.6 0 1986/87 27.9 11.1 0.0 0.0 102.6 0.0 14.3 0.0 0.0 0.2 0.0 0.0 13.0 156.1 0 1987/88 5.7 8.0 0.0 40.9 34.2 39.0 5.8 3.4 0.0 0.0 0.0 0.0 11.4 137.0 0 1988/89 0.1 0.0 61.9 94.7 25.5 0.4 33.0 4.0 0.0 0.0 0.0 0.0 18.3 219.6 0 1989/90 0.0 0.0 0.0 49.2 11.0 37.1 8.5 0.0 0.0 0.0 0.0 0.0 8.8 105.8 0 1990/91 0.3 0.1 40.8 99.5 57.9 65.1 0.0 0.0 0.0 0.0 0.0 0.0 22.0 263.7 0 1991/92 6.4 3.4 34.4 0.1 29.6 26.4 0.0 0.0 0.0 0.0 0.0 0.0 8.4 100.3 0 1992/93 0.2 0.0 23.1 87.2 21.6 36.8 64.9 0.7 0.0 0.0 0.0 0.0 19.5 234.5 0 1993/94 0.0 0.0 0.0 21.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 36.0 0 1994/95 0.0 0.0 0.0 0.0 9.9 11.6 0.0 9.6 0.0 [ ] [ ] [ ] [3.5] [31.1] 92 1038 Tot Mean 4.8 11.0A 19.9 36.6 46.7A 34.5 15.2 2.5 1.5 0.8 0.6 1.8 [15.0] [171.8] Mean Med. 1.0 5.8A 12.3 23.7 31.6A 27.0 8.5 0.5 0.0 0.0 0.0 0.0 Med. Max 37.6 57.6A 74.7 193.3 173.5A 150.4 77.6 30.0 16.0 19.1 13.5 38.0 [36.6] [425.5] Max Min 0.0 0.0A 0.0 0.0 0.0A 0.0 0.0 0.0 0.0 0.0 0.0 0.0 [3.0] [12.3] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 55 56 56 57 57 57 57 54 53 54 53 53 58 58 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data [ ] Data Not Recorded