Department of Water Affairs, Namibia HYMONTH V86 Output 28/07/2010 Site 0495534 Grabstein Site 0495534.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 1936/37 [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.0 0.0 0.0 0.0 0.0 [0.0] [0.0] 212 1937/38 0.3 3.9 40.6 11.7 34.0 3.5 13.4 0.0 2.5 3.0 0.0 0.0 9.4 112.9 0 1938/39 0.0 20.9 25.5 58.6 53.2 25.6 26.3 2.1 19.0 19.1 7.5 1.7 21.6 259.5 0 1939/40 1.5 55.9 0.0 15.5 43.5 29.4 2.8 0.0 2.3 0.0 0.0 17.7 14.0 168.6 0 1940/41 1.0 23.6 5.6 28.3 83.0 7.6 1.5 0.0 1.0 0.0 0.0 3.6 12.9 155.2 0 1941/42 10.2 0.0 0.0 7.1 76.4 69.3 34.2 17.0 0.0 0.0 0.0 0.0 17.9 214.2 0 1942/43 26.9 0.0 15.2 17.0 7.9 0.0 82.0 0.0 0.0 0.0 14.9 0.0 13.7 163.9 0 1943/44 0.0 0.0 39.6 44.2 0.0 13.2 0.0 0.0 0.0 0.0 0.0 0.0 8.1 97.0 0 1944/45 0.0 0.0 0.0 27.0 4.1 19.1 0.0 0.0 0.0 0.0 0.0 0.0 4.2 50.2 0 1945/46 0.0 4.1 11.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 15.8 0 1946/47 0.0 0.0 5.5 0.0 0.0 28.7 18.8 6.6 0.0 0.0 0.0 0.0 5.0 59.6 0 1947/48 0.0 31.0 24.9 3.5 24.2 16.5 4.6 0.0 0.0 0.0 0.0 0.0 8.7 104.7 0 1948/49 0.0 18.8 15.3 26.4 14.1 80.4 38.9 0.0 17.5 0.0 32.8 0.0 20.4 244.2 0 1949/50 1.0 0.0 6.6 0.0 136.1 91.8 52.1 22.3 0.0 0.0 0.0 1.8 26.0 311.7 0 1950/51 [ ] [ ] [ ] 0.0 55.6 0.0 19.2 0.0 0.0 0.0 0.0 0.0 [8.3] [74.8] 92 1951/52 2.0 0.0 2.0 4.6 101.1 0.0 5.9 0.0 1.3 0.0 0.0 0.3 9.8 117.2 0 1952/53 0.3 0.6 1.8 2.5 56.4 10.0 25.0 0.0 0.0 0.0 0.0 0.1 8.1 96.7 0 1953/54 12.0 0.0 97.1 17.0 0.9 113.6 18.5 6.0 0.0 0.0 0.0 0.0 22.1 265.1 0 1954/55 2.0 10.0 6.0 26.0 34.0 57.5 8.5 0.0 11.1 0.0 0.0 0.0 12.9 155.1 0 1955/56 6.0 15.0 28.0 42.5 152.0 100.5 0.0 0.0 0.0 0.0 0.0 0.0 28.7 344.0 0 1956/57 0.0 22.5 10.0 74.3 27.5 25.5 18.0 5.4 0.0 0.0 0.0 6.5 15.8 189.7 0 1957/58 10.5 27.0 30.3 29.8 23.4 5.5 21.5 0.0 0.0 0.0 0.0 0.0 12.3 148.0 0 1958/59 0.0 [ ] 9.5 19.0 27.5 34.5 8.0 0.0 5.0 0.0 0.0 0.0 [9.4] [103.5] 30 1959/60 0.0 21.2 17.0 0.0 13.0 48.7 6.0 0.0 0.0 0.0 0.0 0.0 8.8 105.9 0 1960/61 0.0 35.0 13.5 45.5 28.5 8.5 58.5 12.7 19.0 1.8 0.0 0.0 18.6 223.0 0 1961/62 0.0 7.0 18.0 9.0 159.2 3.5 3.5 0.0 0.0 0.0 4.0 0.0 17.0 204.2 0 1962/63 0.0 10.7 12.7 61.0 5.5 51.0 3.5 22.0 4.0 2.8 0.0 0.0 14.4 173.2 0 1963/64 7.0 50.3 0.0 0.0 0.0 7.1 0.0 0.0 0.0 0.0 3.0 0.0 5.6 67.4 0 1964/65 9.0 9.0 [ ] 13.5 0.5 42.0 49.4 0.0 0.0 0.0 0.0 7.5 [11.9] [130.9] 31 1965/66 11.5 6.5 0.0 43.5 31.5 0.0 5.0 0.0 6.0 0.0 0.0 0.0 8.7 104.0 0 1966/67 24.5 0.0 0.0 28.5 24.0 18.5 25.0 49.0 0.0 0.0 0.0 0.0 14.1 169.5 0 1967/68 0.0 55.0 0.0 0.0 3.0 101.5 1.5 35.0 13.0 0.0 0.0 0.0 17.4 209.0 0 1968/69 23.5 15.5 49.5 0.0 66.0 23.5 0.0 7.0 0.0 0.0 0.0 0.0 15.4 185.0 0 1969/70 0.0 6.0 0.0 0.0 31.0 11.5 17.0 0.0 0.0 0.0 0.0 0.0 5.5 65.5 0 1970/71 12.5 5.5 4.0 33.0 26.5 34.5 7.0 11.5 0.0 0.0 0.0 0.0 11.2 134.5 0 638 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 0495534 Grabstein Site 0495534.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 1971/72 13.0 0.0 0.0 51.5 0.0 83.5 37.0 0.0 0.0 0.0 0.0 0.0 15.4 185.0 0 1972/73 0.0 17.0 0.0 9.5 40.5 55.5 13.0 0.0 0.0 0.0 0.0 0.0 11.3 135.5 0 1973/74 23.0 0.0 21.5 168.0 323.0 0.0 46.0 0.0 0.0 0.0 0.0 0.0 48.5 581.5 0 1974/75 0.0 41.0 38.5 7.0 6.5 88.5 18.0 0.0 0.0 0.0 0.0 0.0 16.6 199.5 0 1975/76 0.0 17.0 68.0 153.5 103.0 91.0A 21.0 9.5 0.0 0.0 0.0 0.0 38.6A 463.0A 0 1976/77 0.0 0.0 0.0 0.0 51.5 60.3 42.5 0.0 0.0 0.0 0.0 0.0 12.9 154.3 0 1977/78 0.0 0.0 0.0 20.0 43.0A 15.0A 0.0 0.0 0.0 0.0 3.5 0.0 6.8A 81.5A 0 1978/79 0.0 0.0 0.0 60.0 21.0 0.0 11.0 0.0 0.0 6.5 0.0 0.0 8.2 98.5 0 1979/80 0.0 7.0 27.0 0.0 25.5 24.5 0.0 0.0 0.0 0.0 0.0 0.0 7.0 84.0 0 1980/81 0.0 0.0 10.5 0.0 53.5 41.0 0.0 0.0 0.0 0.0 6.5 0.0 9.3 111.5 0 1981/82 0.0 0.0 1.5 30.0 43.0 6.5 12.5 0.0 0.0 0.0 0.0 0.0 7.8 93.5 0 1982/83 12.5 0.0 18.0 11.5 0.0 13.5 0.0 0.0 0.0 0.0 0.0 0.0 4.6 55.5 0 1983/84 10.0 3.5 37.0 0.0 4.5 39.0 21.0 10.0A 0.0 0.0 0.0 0.0 10.4A 125.0A 0 1984/85 23.0 0.0 0.0 47.5 1.0 36.5 0.0 0.0 0.0 0.0 0.0 0.0 9.0 108.0 0 1985/86 23.5 33.0 6.2 35.0 23.0 10.5 31.5 0.0 0.0 0.0 0.0 19.0 15.1 181.7 0 1986/87 0.0 35.0 6.0 0.0 113.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12.8 154.0 0 1987/88 0.0 33.0 6.0 108.0 76.0 46.5 53.5 0.0 0.0 0.0 0.0 0.0 26.9 323.0 0 1988/89 0.0 33.0 17.0 64.5 86.0 12.0 21.5 0.0 0.0 0.0 0.0 0.0 19.5 234.0 0 1989/90 0.0 0.0 0.0 6.0 0.0 62.5 32.0 0.0 0.0 0.0 0.0 0.0 8.4 100.5 0 1990/91 0.0 2.0 49.0 51.0 44.0 25.5 0.0 0.0 0.0 0.0 0.0 7.1 14.9 178.6 0 1991/92 19.8 16.3 26.8 0.0 0.0 4.0 0.0 0.0 0.0 0.0 0.0 2.0 5.7 68.9 0 1992/93 0.0 0.0 0.0 45.0 34.0A 0.0 45.4 8.5 0.0 0.0 0.0 0.0 11.1A 132.9A 0 1993/94 42.0 20.0 21.0 25.0 51.0 9.0 0.0 0.0 0.0 0.0 0.0 0.0 14.0 168.0 0 1994/95 0.0 12.0 12.0 4.5 4.0 20.0 4.0 0.0 0.0 0.0 0.0 0.0 4.7 56.5 0 1995/96 0.0 0.0 5.5 159.0 3.0 10.5 3.5 3.5 0.0 18.0 0.0 0.0 16.9 203.0 0 1996/97 0.0 26.5 26.0 5.0 0.0 30.0 0.0 10.0 8.5 0.0 0.0 0.0 8.8 106.0 0 1997/98 0.0 0.0 0.0 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0.0] [0.0] 273 638 Tot Mean 5.5 12.7 15.0 29.2 41.6A 31.1A 16.5 3.9A 1.8 0.8 1.2 1.1 [13.0] [155.0] Mean Med. 0.0 6.5 9.5 17.0 27.5A 21.7A 9.8 0.0A 0.0 0.0 0.0 0.0 Med. Max 42.0 55.9 97.1 168.0 323.0A 113.6A 82.0 49.0A 19.0 19.1 32.8 19.0 [48.5] [581.5] Max Min 0.0 0.0 0.0 0.0 0.0A 0.0A 0.0 0.0A 0.0 0.0 0.0 0.0 [0.0] [0.0] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 60 59 59 60 60 60 60 61 61 61 61 61 62 62 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data [ ] Data Not Recorded