Department of Water Affairs, Namibia HYMONTH V86 Output 28/07/2010 Site 0314577 Ariamsvlei Site 0314577.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 1926/27 [ ] [ ] [ ] [ ] 30.0 15.0 31.0 0.0 0.0 0.0 0.0 0.0 [9.5] [76.0] 123 1927/28 46.0 24.0 0.0 42.0 7.0 123.0 8.0 9.0 0.0 0.0 0.0 13.0 22.7 272.0 0 1928/29 0.0 9.0 3.0 65.0 0.0 28.0 5.0 0.0 0.0 0.0 0.2 0.6 9.2 110.8 0 1929/30 5.1 0.0 13.0 3.3 1.5 13.0 0.0 0.0 1.6 0.0 1.0 0.0 3.2 38.5 0 1930/31 0.0 12.1 0.0 16.4 0.7 51.9 7.4 0.0 0.0 0.0 0.0 0.0 7.4 88.5 0 1931/32 0.0 11.8 6.9 18.6 29.6 21.2 2.0 7.7 0.0 0.0 0.0 0.0 8.1 97.8 0 1932/33 2.4 0.0 2.1 10.2 8.0 0.7 0.0 0.0 2.7 0.0 0.2 0.0 2.2 26.3 0 1933/34 0.0 0.0 85.1 82.4 28.2 106.0 7.9 2.5 0.0 0.0 0.0 0.0 26.0 312.1 0 1934/35 3.0 29.3 41.4 0.0 13.3 7.5 40.8 24.5 0.0 0.0 0.0 0.0 13.3 159.8 0 1935/36 0.0 10.0 0.0 0.0 10.5 24.5 0.2 0.0 0.0 0.0 0.0 8.3 4.5 53.5 0 1936/37 0.0 0.0 14.0 32.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.8 46.1 0 1937/38 4.0 22.2 37.0 50.5 23.0 2.2 4.0 12.3 6.5 30.2 0.0 [ ] [17.4] [191.9] 30 1938/39 0.0 32.2 2.9 0.0 62.5 25.3 10.0 8.0 8.5 25.0 20.3 0.0 16.2 194.7 0 1939/40 20.0 0.0 0.0 17.0 48.0 21.2 0.3 0.0 0.0 0.0 0.0 20.1 10.5 126.6 0 1940/41 0.0 3.0 0.0 50.0 15.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.7 68.0 0 1941/42 6.1 1.5 0.0 0.0 16.2 68.1 8.9 4.1 0.0 0.0 0.0 0.0 8.7 104.9 0 1942/43 37.1 2.0 0.0 42.1 1.3 13.9 23.6 15.0 0.0 0.0 0.0 0.0 11.2 135.0 0 1943/44 0.0 56.1 16.3 9.6 5.1 96.5 0.0 0.0 8.9 0.0 0.0 0.0 16.0 192.5 0 1944/45 0.0 0.0 0.0 47.8 8.9 17.3 0.0 0.0 0.0 6.1 0.0 0.0 6.7 80.1 0 1945/46 0.0 0.0 0.0 16.3 3.3 0.0 44.2 0.0 0.0 0.0 0.0 6.1 5.8 69.9 0 1946/47 0.0 0.0 21.1 0.0 0.0 34.6 36.1 0.0 0.0 0.0 0.0 11.9 8.6 103.7 0 1947/48 0.0 0.0 7.4 0.0 52.3 53.3 15.5 0.0 0.0 0.0 0.0 0.0 10.7 128.5 0 1948/49 0.0 0.0 0.0 3.9 17.2 7.1 1.3 0.0 2.8 0.0 8.2 0.0 3.4 40.5 0 1949/50 2.0 0.5 31.5 3.8 43.2 44.1 44.9 38.4 18.0 0.8 3.8 2.8 19.5 233.8 0 1950/51 28.2 12.4 0.0 3.6 42.7 14.2 0.0 4.6 0.0 0.0 0.0 0.0 8.8 105.7 0 1951/52 6.9 20.1 0.0 0.0 77.2 0.0 0.0 4.8 0.0 4.1 0.0 0.0 9.4 113.1 0 1952/53 8.7 12.0 4.3 0.0 26.7 6.1 17.4 0.0 0.0 0.0 6.5 0.0 6.8 81.7 0 1953/54 1.3 31.0 27.5 0.0 1.0 106.5 19.0 7.0 0.0 0.0 0.0 2.7 16.3 196.0 0 1954/55 0.0 32.8 0.0 52.8 7.0 15.4 20.5 6.8 8.3 0.2 0.4 0.0 12.0 144.2 0 1955/56 57.4 35.5 6.0 19.3 28.6 81.5A 1.7 7.3 0.0 0.1 0.0 0.0 19.8A 237.4A 0 1956/57 15.5 2.2 11.5 6.0 1.0 45.0 0.0 16.2 0.0 0.0 0.0 7.3 8.7 104.7 0 1957/58 0.3 0.4 7.5 32.0 16.5 2.3 17.0 10.0 0.0 0.0 0.0 5.3 7.6 91.3 0 1958/59 0.0 0.0 24.5 6.5 20.2 2.0 16.9 2.0 10.0 0.0 0.0 0.0 6.8 82.1 0 1959/60 2.5 8.8 39.5 6.5 9.5 40.4 12.2 0.4 0.0 0.0 0.0 4.5 10.4 124.3 0 1960/61 0.0 4.0 9.0 23.0 23.5 24.7 27.0 0.0 14.4 0.0 0.0 0.0 10.5 125.6 0 730 Tot ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data D ... Doubtful Estimate [ ] Data Not Recorded Department of Water Affairs, Namibia HYMONTH V86 Output 28/07/2010 Site 0314577 Ariamsvlei Site 0314577.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 1961/62 0.0 19.5 0.0 0.0 45.5 0.7 21.2 0.0 0.0 0.0 16.0 14.5 9.8 117.4 0 1962/63 0.0 33.5 0.0 51.8 16.5 43.4 11.5 6.0 0.0 0.0 0.0 1.5 13.7 164.2 0 1963/64 18.2 7.5 1.0 0.0 3.2 7.5 0.0 0.5 2.5 0.0 2.0 6.0 4.0 48.4 0 1964/65 13.0 0.0 0.0 4.5 1.5 52.5 3.0 0.0 0.0 5.0 0.0 0.3 6.7 79.8 0 1965/66 0.0 16.5 0.0 0.3 8.5 9.5 12.0 0.0 0.0 0.0 0.0 3.0 4.2 49.8 0 1966/67 8.5 0.0 0.0 15.0 35.0 2.0 21.0 14.0 0.0 0.0 0.0 0.0 8.0 95.5 0 1967/68 0.0 25.0 0.0 0.0 0.0 91.5 0.0 59.7 0.0 0.0 0.0 0.0 14.7 176.2 0 1968/69 4.0 3.5 8.5 0.0 38.0 [ ] 0.0 0.0 0.0 0.0 0.0 0.0 [4.9] [54.0] 31 1969/70 0.0 0.0 5.0 35.5 34.5 0.0 8.0 0.0 0.0 0.0 16.0 0.0 8.3 99.0 0 1970/71 11.5 8.5 0.0 6.0 30.0 18.0 7.0 0.0 0.0 6.5 0.0 0.0 7.3 87.5 0 1971/72 10.0 0.0 0.0 57.5 0.0 21.5 18.0 0.0 0.0 0.0 0.0 0.0 8.9 107.0 0 1972/73 0.0 0.0 0.0 0.0 59.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 59.5 0 1973/74 9.5 0.0 21.0 115.0 67.5 23.5 28.5 0.0 0.0 0.0 0.0 0.0 22.1 265.0 0 1974/75 0.0 10.5 10.0 15.5 6.0 64.0 0.0 0.0 0.0 0.0 0.0 0.0 8.8 106.0 0 1975/76 6.0 8.5 117.5 57.5 87.5 76.0 22.0 17.5 0.0 0.0 0.0 0.0 32.7 392.5 0 1976/77 15.0 0.0 0.2 5.0 69.0 60.5D 58.0D 3.5 0.0 0.0 0.0 14.0 18.8D 225.2D 0 1977/78 3.0 0.0 4.0 12.0 45.0 13.0 58.0D 0.0 0.0 0.0 0.0 10.0 12.1D 145.0D 0 1978/79 0.0 5.0 0.0 31.0 6.5 0.0 10.5 3.5 0.0 24.0 0.0 0.0 6.7 80.5 0 1979/80 2.5 27.5 5.5 0.0 11.0 131.0 0.0 0.0 0.0 0.0 5.5 4.5 15.6 187.5 0 1980/81 0.0 17.0 25.0 0.0 20.0 13.0 1.5 0.0 0.0 0.0 26.0 0.0 8.5 102.5 0 1981/82 0.0 0.0 0.0 0.0 0.0 0.0 31.5 0.0 0.0 [ ] 0.0 1.5 [3.0] [33.0] 31 1982/83 10.6 3.0 0.0 17.0 0.0 9.0 5.0 5.0 14.5 0.0 0.0 1.5 5.5 65.6 0 1983/84 7.0 62.5 15.5 0.0 5.0 0.0 5.0 0.0 4.0 0.0 0.0 0.0 8.3 99.0 0 1984/85 0.0 3.0 0.0 9.5 25.0 27.0 0.0 0.0 0.0 0.0 0.0 9.0 6.1 73.5 0 1985/86 15.0 47.0 27.5 21.8 0.0 10.0 16.0 10.5 0.0 0.0 0.0 0.0 12.3 147.8 0 1986/87 8.0 0.0 0.0 0.0 33.0 44.0 15.0 0.0 0.0 5.0 0.0 13.0 9.8 118.0 0 1987/88 16.0 28.0 0.0 0.0 81.0 45.8 29.5 3.0 0.0 0.0 1.0 5.0 17.4 209.3 0 1988/89 5.0 33.0 18.0 22.0 59.8 0.0 17.2 1.1 0.0 0.0 0.0 1.5 13.1 157.6 0 1989/90 0.0 0.0 0.0 4.6 34.0 36.0 32.0 0.0 0.0 0.0 0.0 0.0 8.9 106.6 0 1990/91 0.0 3.0 10.7 9.5 13.5 79.5 0.0 0.0 0.0 0.0 0.0 0.0 9.7 116.2 0 1991/92 0.0 0.0 0.0 0.0 0.0 20.5 0.0 0.0 0.0 0.0 0.0 0.0 1.7 20.5 0 1992/93 0.0 0.0 0.0 5.0 17.0 12.0 6.8 0.0 4.5 0.0 0.0 15.5 5.1 60.8 0 1993/94 14.0 2.0 0.0 29.0 10.5 54.0 [ ] 0.0 0.0 [ ] [ ] [ ] [13.7] [109.5] 122 1994/95 [ ] [ ] [ ] 0.0 0.0 45.5 2.5 0.0 0.0 0.0 0.0 0.0 [5.3] [48.0] 92 1995/96 0.0 12.5 9.5 0.0 26.5 0.0 17.0 8.5 0.0 27.0 0.0 0.0 8.4 101.0 0 730 Tot ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data D ... Doubtful Estimate [ ] Data Not Recorded Department of Water Affairs, Namibia HYMONTH V86 Output 28/07/2010 Site 0314577 Ariamsvlei Site 0314577.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 1996/97 15.0 67.0 6.5 12.0 15.0 25.0 0.0 0.0 0.0 1.5 0.0 0.0 11.8 142.0 0 1997/98 0.0 0.0 0.0 19.0 31.3 13.0 0.0 0.0 0.0 0.0 0.0 4.5 5.6 67.8 0 1998/99 4.0 0.0 11.0 21.5 [ ] 49.6 8.5 64.0 0.0 0.0 0.0 0.0 [14.4] [158.6] 28 1999/ 0 19.5 26.0 31.2 38.0 85.0 63.5 32.7 0.0 0.0 0.0 6.0 16.5 26.5 318.4 0 2000/ 1 15.0 0.0 1.6 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [5.5] [16.6] 273 730 Tot Mean 6.5 11.5 10.1 17.5 23.3 31.2D 12.6D 5.1 1.4 1.9 1.5 2.8 [10.4] [122.3] Mean Med. 2.0 3.0 2.1 9.5 16.5 21.2D 8.0D 0.0 0.0 0.0 0.0 0.0 Med. Max 57.4 67.0 117.5 115.0 87.5 131.0D 58.0D 64.0 18.0 30.2 26.0 20.1 [32.7] [392.5] Max Min 0.0 0.0 0.0 0.0 0.0 0.0D 0.0D 0.0 0.0 0.0 0.0 0.0 [1.7] [16.6] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 73 73 73 73 73 73 73 74 74 72 73 72 75 75 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data D ... Doubtful Estimate [ ] Data Not Recorded