Department of Water Affairs, Namibia HYMONTH V86 Output 29/07/2010 Site 0657699 Rietquelle Site 0657699.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 1935/36 [ ] [ ] [ ] 101.5 34.3 76.4 3.0 46.6 0.0 0.0 0.0 0.0 [29.1] [261.8] 92 1936/37 7.2 0.0 6.8 109.0 33.8 7.3 1.9 0.0 0.0 0.0 0.0 0.0 13.8 166.0 0 1937/38 4.7 17.0 36.1 182.2 18.5 17.2 49.3 11.6 0.4 0.0 0.0 0.0 28.1 337.0 0 1938/39 5.9 24.1 15.5 14.2 133.4 96.7 4.3 0.9 2.3 6.0 0.0 1.6 25.4 304.9 0 1939/40 14.7 19.7 29.9 94.4 23.9 46.9 61.7 0.0 0.8 0.0 0.0 23.4 26.3 315.4 0 1940/41 2.3 0.8 35.6 78.5 27.0 6.3 7.9 0.0 3.6 0.0 0.0 0.5 13.5 162.5 0 1941/42 4.5 3.3 3.6 18.3 41.2 53.8 67.1 0.8 0.0 0.0 5.6 3.0 16.8 201.2 0 1942/43 20.7 3.0 55.2 46.8 [ ] 56.8 62.0 1.0 0.0 0.0 6.9 0.0 [22.9] [252.4] 28 1943/44 8.9 55.6 73.4 124.9 41.2 36.7 0.0 [ ] [ ] [ ] [ ] [ ] [48.7] [340.7] 153 1944/45 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1945/46 [ ] [ ] [ ] [ ] 13.7 33.0 0.0 0.0 0.0 0.0 0.0 1.3 [6.0] [48.0] 123 1946/47 0.0 0.0 0.0 0.0 0.0 0.0 21.6 0.0 0.0 0.0 0.0 14.2 3.0 35.8 0 1947/48 0.0 4.3 6.1 8.9 50.6 26.7 9.9 14.0 0.0 9.2 0.0 0.0 10.8 129.7 0 1948/49 16.0 32.0 0.0 9.1 34.5 91.7 24.1 0.0 0.0 0.0 4.6 0.0 17.7 212.0 0 1949/50 21.6 14.5 18.3 19.1 91.7 85.3 133.7 108.7 0.0 0.0 0.0 0.0 41.1 492.9 0 1950/51 0.0 17.8 [ ] 0.0 22.9 2.8 77.8 0.0 0.0 0.0 0.0 0.0 [11.0] [121.3] 31 1951/52 7.7 22.7 0.0 0.0 24.2 0.0 0.0 0.0 18.5 0.0 0.0 0.0 6.1 73.1 0 1952/53 10.9 1.5 28.7 1.3 83.8 53.8 26.5 0.0 0.0 0.0 0.0 0.0 17.2 206.5 0 1953/54 23.2 3.3 34.1 30.3 46.1 265.9 32.4 0.0 0.0 0.0 0.0 0.0 36.3 435.3 0 1954/55 10.0 4.7 37.9 90.3 159.2 46.1 19.1 8.1 7.9 0.0 0.0 0.0 31.9 383.3 0 1955/56 12.7 10.9 15.6 27.4 90.4 131.2 11.1 5.5 0.0 0.0 0.0 9.4 26.2 314.2 0 1956/57 2.5 8.4 7.7 51.3 32.1 40.7 11.0 9.8 0.3 4.1 0.0 33.5 16.8 201.4 0 1957/58 45.0 37.9 16.0 58.7 25.6 22.0 9.0 0.0 0.0 0.0 0.0 0.0 17.9 214.2 0 1958/59 1.3 13.6 3.3 22.6 11.3 12.1 13.6 0.0 0.8 0.0 0.9 0.0 6.6 79.5 0 1959/60 0.5 8.8 19.8 8.9 98.3 67.6 12.9 6.4 0.0 0.0 0.0 0.9 18.7 224.1 0 1960/61 8.5 7.0 [ ] 11.7 19.2 8.0 0.3 5.7 31.6 0.0 0.0 1.5 [8.5] [93.5] 31 1961/62 0.0 4.5 0.0 4.5 25.4 21.9 9.0 0.0 0.0 0.0 0.4 0.0 5.5 65.7 0 1962/63 10.0 5.5 12.5 28.1 8.0 50.0 47.5 9.5 0.0 0.0 0.0 0.0 14.3 171.1 0 1963/64 15.5 40.0 0.0 0.0 10.0 2.5 0.0 1.5 0.0 0.0 0.0 0.0 5.8 69.5 0 1964/65 44.0 2.0 21.0 39.0 13.0 54.5 27.5 0.0 0.0 0.0 0.0 0.0 16.8 201.0 0 1965/66 9.0 11.0 0.0 3.0 52.0 45.0 0.0 0.0 0.0 0.0 0.0 44.5 13.7 164.5 0 1966/67 3.0 0.0 26.0 19.0 19.5 5.0 9.0 20.0 0.0 0.0 0.0 0.0 8.5 101.5 0 1967/68 0.0 25.5 [ ] 55.5 5.0 58.0 0.0 63.0 0.0 0.0 0.0 0.0 [18.8] [207.0] 31 1968/69 25.0 0.0 0.0 8.0 41.5 19.0 0.0 0.0 0.0 0.0 0.0 0.0 7.8 93.5 0 1969/70 0.0 8.0 [ ] 55.0 50.0 6.0 14.0 0.0 0.0 0.0 0.0 0.0 [12.1] [133.0] 31 1222 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 0657699 Rietquelle Site 0657699.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 1970/71 14.5 1.5 [ ] 0.0 12.0 18.5 0.0 13.5 0.0 0.0 0.0 0.0 [5.5] [60.0] 31 1971/72 1.5 21.5 [ ] 61.5 0.0 65.0 0.0 0.0 0.0 0.0 0.0 0.0 [13.6] [149.5] 31 1972/73 0.0 0.0 0.0 0.0 31.0 24.4 0.0 0.0 0.0 0.0 0.0 0.0 4.6 55.4 0 1973/74 0.0 0.0 0.0 129.0 139.3 34.0 80.0 0.0 0.0 0.0 0.0 7.5 32.5 389.8 0 1974/75 23.0 8.0 11.5 19.0 16.0 211.5 1.5 7.0 0.0 0.0 0.0 0.0 24.8 297.5 0 1975/76 10.0 0.0 0.0 193.0A 175.5 106.0 37.5 4.0 0.0 0.0 0.0 0.0 43.8A 526.0A 0 1976/77 3.0 31.5 0.0 21.0 73.1 86.0 69.7 10.5 [ ] [ ] [ ] [ ] [36.8] [294.8] 122 1977/78 [ ] [ ] [ ] [ ] 36.0 12.0 11.0 4.0 0.0 0.0 0.0 37.0 [12.5] [100.0] 123 1978/79 0.0 0.0 0.0 87.0 109.0 11.0 39.0 0.0 0.0 0.0 0.0 [ ] [22.4] [246.0] 30 1222 Tot Mean 9.7 11.7 15.1 44.7A 47.0 49.2 23.4 8.4 1.6 0.5 0.4 4.5 [18.6] [207.7] Mean Med. 7.5 7.5 9.6 22.6A 33.0 36.7 11.0 0.4 0.0 0.0 0.0 0.0 Med. Max 45.0 55.6 73.4 193.0A 175.5 265.9 133.7 108.7 31.6 9.2 6.9 44.5 [48.7] [526.0] Max Min 0.0 0.0 0.0 0.0A 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 [3.0] [35.8] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 40 40 34 41 42 43 43 42 41 41 41 40 43 43 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data [ ] Data Not Recorded