Department of Water Affairs, Namibia HYMONTH V86 Output 29/07/2010 Site 0740063 Windhoek Waterwerke Site 0740063.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 1939/40 [ ] [ ] [ ] 95.4 91.3 78.2 13.7 [ ] [ ] [ ] [ ] [ ] [69.7] [278.6] 245 1940/41 15.2 15.2 58.5 66.2 47.0 53.4 [ ] [ ] [ ] [ ] [ ] [ ] [42.6] [255.5] 183 1941/42 37.8 [ ] [ ] 8.9 215.8 86.1 101.1 [ ] [ ] [ ] [ ] [ ] [89.9] [449.7] 214 1942/43 5.8 24.6 77.7 16.9 18.4 20.1 196.4 [ ] [ ] [ ] [ ] 0.0 [45.0] [359.9] 123 1943/44 0.0 12.8 117.6 123.2 19.2 35.5 [ ] [ ] [ ] [ ] [ ] [ ] [51.4] [308.3] 183 1944/45 [ ] 9.1 25.7 37.3 18.0 18.1 0.0 0.0 0.0 0.0 0.0 0.0 [9.8] [108.2] 31 1945/46 0.0 36.3 97.2 0.6 16.0 23.6 18.8 0.0 0.0 0.0 0.0 0.0 16.0 192.5 0 1946/47 2.0 6.8 41.4 70.8 63.6 124.7 44.3 0.0 0.0 0.0 0.0 0.0 29.5 353.6 0 1947/48 0.5 0.0 41.8 104.3 117.2 17.3 4.6 1.5 0.0 6.1 0.0 0.0 24.4 293.3 0 1948/49 1.3 53.4 43.4 61.6 43.2 139.3 71.3 0.0 0.0 0.0 0.0 0.0 34.5 413.5 0 1949/50 9.4 30.5 4.1 150.4 137.1 229.2 145.0 5.3 2.3 0.0 0.0 1.3 59.6 714.6 0 1950/51 0.0 22.0 74.2 58.2 62.5 18.6 46.6 15.5 0.0 0.0 0.0 0.0 24.8 297.6 0 1951/52 17.8 34.5 31.1 58.2 122.4 12.8 14.3 0.0 0.0 0.0 0.0 0.3 24.3 291.4 0 1952/53 20.3 50.4 20.2 31.2 151.7 57.3 44.7 29.9 0.0 0.0 0.0 2.0 34.0 407.7 0 1953/54 37.0 30.4 88.4 151.3 22.3 301.4 74.2 0.2 0.0 0.0 0.0 10.6 59.7 715.8 0 1954/55 43.5 13.7 36.0 66.0 21.2 53.0 72.2 0.0 20.0 0.0 0.0 0.0 27.1 325.6 0 1955/56 18.9 45.0 35.1 42.5 144.5 140.5 31.7 0.9 0.0 10.0 0.0 2.7 39.3 471.8 0 1956/57 3.7 12.0 28.3 123.4 83.4 93.0 5.2 0.4 0.0 0.6 0.0 0.0 29.2 350.0 0 1957/58 16.0 148.5 66.9 114.2 60.5 104.1 1.6 1.4 0.0 0.0 0.0 1.0 42.8 514.2 0 1958/59 0.5 3.9 29.0 53.7 82.5 12.7 16.0 0.0 0.0 0.0 0.0 0.0 16.5 198.3 0 1959/60 3.0 17.0 6.1 21.7 132.9 17.6 15.3 10.0 0.0 0.0 0.0 2.5 18.8 226.1 0 1960/61 12.5 2.5 7.0 15.9 20.9 62.5 45.8 6.7 16.4 0.0 0.0 0.5 15.9 190.7 0 1961/62 0.5 84.0 13.8 26.0 127.2 0.0 6.7 0.0 0.0 0.0 20.0 0.0 23.2 278.2 0 1962/63 33.0 16.5 12.0 265.1 16.7 95.1 114.0 11.0 0.0 0.0 0.8 4.2 47.4 568.4 0 1963/64 28.3 150.0 10.5 67.6 29.5 82.8 19.0 0.0 0.0 0.0 0.6 0.0 32.4 388.3 0 1964/65 5.5 10.2 10.0 63.6 61.4 92.8 75.5 0.0 0.0 0.0 0.0 4.5 27.0 323.5 0 1965/66 4.0 23.6 5.5 69.9 85.1 38.7 81.1 0.0 0.0 0.0 0.0 49.5 29.8 357.4 0 1966/67 12.0 1.4 81.3 34.6 122.7 64.5 9.0 25.0 0.0 0.0 0.0 1.0 29.3 351.5 0 1967/68 0.0 69.3 44.5 43.5 19.5 98.5 4.1 19.3 0.2 0.0 0.0 0.0 24.9 298.9 0 1968/69 0.2 88.9 14.8 9.4 138.1 61.4 14.9 0.0 0.0 0.0 0.1 1.6 27.5 329.4 0 1969/70 0.0 14.7 13.5 139.5 56.5 16.5 2.5 0.0 0.0 0.0 0.0 0.0 20.3 243.2 0 1970/71 42.2 0.3 47.7 47.7 138.5 59.8 27.6 11.5 0.0 0.0 0.0 0.0 31.3 375.3 0 1971/72 0.1 8.9 2.0 55.0 6.5 162.7 103.9 0.0 0.0 0.0 0.0 0.0 28.3 339.1 0 1972/73 13.5 6.6 17.8 10.7 69.5 86.0 27.5 0.0 0.0 0.2 0.0 0.0 19.3 231.8 0 1973/74 47.9 29.5 32.0 236.0 100.5 76.0 66.5 0.0 0.0 0.0 0.0 0.1 49.0 588.5 0 1709 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 29/07/2010 Site 0740063 Windhoek Waterwerke Site 0740063.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 1974/75 12.5 40.8 6.5 58.6 69.3 119.9 24.3 12.0 0.0 0.0 0.0 0.1 28.7 344.0 0 1975/76 7.0 18.0 4.9 95.9 93.1A 136.2 0.5 10.0 0.0 0.0 0.0 0.0 30.5A 365.6A 0 1976/77 11.3 0.5 0.9 56.6 102.4 48.7 23.9 0.1 0.0 0.0 0.0 0.0 20.4 244.4 0 1977/78 11.3 1.7 21.3 59.0 58.4 51.5 3.4 1.2 0.0 0.0 0.3 0.1 17.3 208.2 0 1978/79 0.0 2.7 20.7 39.1 132.3 8.1 3.0 11.2 4.2 0.6 4.5 13.8 20.0 240.2 0 1979/80 1.4 15.5 12.0 16.1 85.1 66.3 6.6 0.0 0.0 0.0 2.4 11.0 18.0 216.4 0 1980/81 0.1 8.3 29.3 1.4 26.4 51.1 7.0 0.0 0.0 0.0 0.0 0.0 10.3 123.6 0 1981/82 0.0 0.0 0.0 1.8 39.5 17.5 3.2 0.0 0.0 0.0 0.0 1.8 5.3 63.8 0 1982/83 0.4 4.9 24.6 38.9 21.6 24.0 9.5 3.4 9.0 0.0 0.0 0.0 11.4 136.3 0 1983/84 3.8 6.0 47.4 17.6 31.6 17.5 54.1 5.2 0.0 0.0 0.0 0.0 15.3 183.2 0 1984/85 3.1 7.6 1.3 30.4 70.4 22.0 14.8 0.0 0.0 0.0 0.0 0.0 12.5 149.6 0 1985/86 43.8 40.1 2.6 62.9 106.6 65.0 20.6 0.0 2.2 0.0 0.0 1.0 28.7 344.8 0 1986/87 18.9 3.2 22.5 0.8 138.1 17.1 35.7 1.8 0.0 0.2 0.0 0.0 19.9 238.3 0 1987/88 17.2 5.9 3.5 171.5 51.9 4.6 26.5 6.6 0.0 0.0 0.0 0.0 24.0 287.7 0 1988/89 1.1 25.6 30.5 52.2 59.6 10.1 31.3 6.3 0.0 0.0 0.0 0.0 18.1 216.7 0 1989/90 0.0 0.0 0.5 78.7 65.6 94.3 41.1 0.0 0.0 0.0 0.0 0.0 23.3 280.2 0 1990/91 0.0 17.6 21.8 94.9 38.6 53.9 0.0 0.0 0.0 0.0 0.0 4.8 19.3 231.6 0 1991/92 5.1 53.3 113.6 40.6 62.1 54.0 37.1 0.0 0.0 0.0 0.0 8.2 31.2 374.0 0 1992/93 0.0 2.0 8.2 60.1 46.3 51.2 21.2 0.0 0.0 0.0 0.0 1.5 15.9 190.5 0 1993/94 51.4 12.2 12.7 102.7 142.3 0.1 12.1 0.0 0.4 0.0 0.0 0.0 27.8 333.9 0 1994/95 0.2 12.9 9.4 3.1 30.7 75.5 17.9 9.0 0.0 0.0 0.0 2.4 13.4 161.1 0 1995/96 1.1 17.6 3.0 82.2 64.9 12.4 10.6 0.0 0.0 0.0 0.0 0.0 16.0 191.8 0 1996/97 0.0 15.4 36.6 118.3 98.0 157.6 17.0 2.9 0.0 0.0 0.0 5.7 37.6 451.5 0 1997/98 6.7 0.0 80.0 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [28.9] [86.7] 273 1998/99 [ ] [ ] [ ] 62.3 88.1 150.8 4.5 25.0 5.0 0.0 0.0 0.0 [37.3] [335.7] 92 1999/ 0 3.6 79.7 118.5 73.1 290.9 [ ] [ ] 5.0 0.0 0.0 0.0 0.0 [57.1] [570.8] 61 2000/ 1 0.0 20.0 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [10.0] [20.0] 304 1709 Tot Mean 10.7 25.2 32.2 66.0 78.0A 66.8 34.1 4.3 1.1 0.3 0.5 2.4 [28.9] [306.1] Mean Med. 3.8 15.2 22.2 58.4 65.3A 54.0 19.0 0.1 0.0 0.0 0.0 0.0 Med. Max 51.4 150.0 118.5 265.1 290.9A 301.4 196.4 29.9 20.0 10.0 20.0 49.5 [89.9] [715.8] Max Min 0.0 0.0 0.0 0.6 6.5A 0.0 0.0 0.0 0.0 0.0 0.0 0.0 [5.3] [20.0] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 59 59 58 60 60 59 57 55 55 55 55 56 62 62 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data [ ] Data Not Recorded