Department of Water Affairs, Namibia HYMONTH V86 Output 29/07/2010 Site 0830557 Waaihoek Site 0830557.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 [ ] [ ] [ ] 85.3A 30.0 140.8 11.9 0.0 0.0 0.0 0.0 0.0 [29.8] [268.0] 92 1940/41 9.9 6.9 122.4 19.7 31.5 50.7 42.2 0.0 0.0 0.0 0.0 0.0 23.6 283.3 0 1941/42 63.3 0.0 19.9 21.9 175.9 67.6 84.4 1.0 0.0 0.0 0.0 3.6 36.5 437.6 0 1942/43 32.0 26.9 142.3 15.6 84.7 91.9 76.3 0.5 0.0 0.0 2.5 0.0 39.4 472.7 0 1943/44 0.0 53.6 172.2 173.7 51.6 41.2 0.0 0.0 0.0 0.0 0.0 4.3 41.4 496.6 0 1944/45 4.1 39.8 [ ] 47.8 31.5 47.8 17.8 0.0 0.0 0.0 0.0 0.0 [17.2] [188.8] 31 1945/46 0.0 83.4 69.5 15.2 9.6 49.0 10.2 0.0 0.0 0.0 0.0 0.5 19.8 237.4 0 1946/47 7.4 17.5 76.2 98.5 212.3 103.8 23.2 0.0 1.3 0.0 0.0 1.0 45.1 541.2 0 1947/48 0.0 6.6 61.0 64.4 116.5 16.5 5.1 15.5 0.0 2.0 0.0 0.0 24.0 287.6 0 1948/49 7.8 34.3 7.4 116.8 59.0 179.4 81.8 0.0 0.0 0.0 0.0 0.0 40.5 486.5 0 1949/50 4.6 19.3 5.1 72.7 152.1 128.1 46.5 48.3 0.0 0.0 0.8 0.0 39.8 477.5 0 1950/51 0.0 24.6 80.9 49.5 79.3 127.4 29.5 8.7 0.0 0.0 0.0 10.2 34.2 410.1 0 1951/52 34.5 43.5 45.2 67.3 109.2 14.9 7.7 0.0 9.5 0.0 0.0 0.0 27.6 331.8 0 1952/53 35.1 16.2 69.1 46.6 200.1 63.4 43.2 17.8 0.0 0.0 0.0 14.5 42.2 506.0 0 1953/54 29.9 53.3 104.9 225.5A 117.7 226.2A 79.5 0.0 0.0 0.0 0.0 12.8 70.8A 849.8A 0 1954/55 1.4 37.5 149.2 49.3 146.0 46.9 69.4 0.0 8.5 0.0 0.0 0.0 42.3 508.2 0 1955/56 88.7 98.7 62.8 68.6 139.9 82.5 48.2 7.1 0.0 1.1 0.0 3.3 50.1 600.9 0 1956/57 5.1 33.6 24.7 84.4 113.7 81.2 5.7 20.9 0.0 2.0 0.0 8.8 31.7 380.1 0 1957/58 6.8 174.3 82.1 185.1 29.0 147.2 66.3 0.0 0.0 0.0 0.0 1.4 57.7 692.2 0 1958/59 4.0 28.5 62.1 99.8 59.2 8.8 6.1 1.2 0.0 0.0 0.0 0.0 22.5 269.7 0 1959/60 [ ] 34.6 13.5 46.2 146.8 21.6 12.3 51.6 0.0 0.0 0.0 0.0 [29.7] [326.6] 31 1960/61 7.0 22.4 32.5 8.4 80.6 91.5 44.2 24.2 13.5 0.0 0.0 0.4 27.1 324.7 0 1961/62 0.0 84.3 13.9 15.4 117.4 5.9 12.0 0.0 0.0 0.0 12.6 0.0 21.8 261.5 0 1962/63 21.9 21.2 5.5 341.4 25.3 146.0 78.5 8.5 0.0 0.0 0.0 0.6 54.1 648.9 0 1963/64 15.6 77.7 22.4 13.3 22.1 28.0 30.4 0.0 0.0 0.0 0.0 0.0 17.5 209.5 0 1964/65 0.0 18.9 57.6 40.0 36.4 59.5 148.1 0.0 0.0 0.0 0.0 1.4 30.2 361.9 0 1965/66 10.0 14.2 7.4 109.3 90.2 35.1 59.5 0.0 0.0 0.0 0.0 53.6 31.6 379.3 0 1966/67 5.7 5.4 103.2 87.4 170.0 54.2 20.7 24.4 0.0 0.0 4.6 1.2 39.7 476.8 0 1967/68 0.0 148.2 116.5 87.5 48.2 198.5 6.6 47.3 0.0 0.0 0.0 0.0 54.4 652.8 0 1968/69 4.0 75.5 24.7 64.5 120.2 86.7 56.8 3.0 0.0 0.0 0.0 0.0 36.3 435.4 0 1969/70 0.0 29.0 28.2 46.1 145.6 15.2 6.7 0.0 0.0 0.0 0.0 0.0 22.6 270.8 0 1970/71 57.0 1.5 68.1 66.2 224.0 21.8 24.8 17.9 3.3 0.0 0.0 0.0 40.4 484.6 0 1971/72 0.0 11.1 6.0 78.7 1.4 88.4 57.4 0.0 0.0 0.0 0.0 0.0 20.2 243.0 0 1972/73 0.0 30.9 51.5 59.7 28.0 53.7 34.6 0.0 0.0 0.0 0.0 0.0 21.5 258.4 0 1973/74 27.2 13.4 65.4 185.8 121.2 30.5 139.1 0.0 0.0 0.0 0.0 0.0 48.6 582.6 0 427 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 0830557 Waaihoek Site 0830557.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 17.8 38.3 24.5 65.3 53.7 161.5 45.1 10.6 0.0 0.0 0.0 0.0 34.7 416.8 0 1975/76 0.0 40.2 26.4 251.1A 123.2 150.9A 13.4 0.0 0.0 0.0 0.0 0.0 50.4A 605.2A 0 1976/77 3.6 13.1 4.5 115.4A 209.0 135.3 176.0A 0.5 0.0 0.0 0.0 6.5 55.3A 663.9A 0 1977/78 28.8 8.0 97.1A 224.0A 269.5 35.5 41.5 7.3 0.0 0.0 7.6 0.0 59.9A 719.3A 0 1978/79 0.0 44.3 39.7 61.0A 168.9 69.8 8.5 11.5 4.0 0.0 0.0 0.8 34.0A 408.5A 0 1979/80 8.0 53.6 84.8 47.5 107.8 73.5 9.0 0.0 0.0 0.5 0.0 39.3 35.3 424.0 0 1980/81 0.0 9.0 61.4 38.9A 12.3 42.9 53.3 0.0 0.0 0.0 0.0 0.0 18.1A 217.8A 0 1981/82 0.0 13.1 58.6 59.4 128.2A 63.1 51.1 0.0 0.0 0.0 0.0 4.0 31.5A 377.5A 0 1982/83 6.0 26.4 74.4 130.8A 58.7 32.6 17.7 14.0 4.5 0.0 0.0 0.0 30.4A 365.1A 0 1983/84 13.3 37.0 74.7 18.4 23.0A 43.5 104.3 7.0 0.0 0.0 0.0 0.0 26.8A 321.2A 0 1984/85 4.3 19.8 3.5 75.5 87.1 49.8 19.0 0.0 0.0 0.0 0.0 0.0 21.6 259.0 0 1985/86 9.4 35.0 0.0 147.5 47.9 180.2 21.1 0.0 1.0 0.0 0.0 18.1 38.4 460.2 0 1986/87 31.2 14.5 15.2 68.2 136.9 74.7 26.1 0.2 0.0 0.0 0.0 0.0 30.6 367.0 0 1987/88 19.7 0.9 17.3 163.2 45.0 21.1 130.2 6.9 0.0 0.0 0.0 0.0 33.7 404.3 0 1988/89 5.0 13.7 49.4 252.7 163.5 9.8 25.1 11.3 0.0 0.0 0.0 0.0 44.2 530.5 0 1989/90 1.5 0.0 0.0 121.9 55.0 130.3 74.5 0.0 0.0 0.0 0.0 0.0 31.9 383.2 0 1990/91 0.0 30.0 93.0 154.0 286.1 13.3 0.0 0.0 0.0 0.0 0.0 47.0 51.9 623.4 0 1991/92 43.7 53.0 182.9 28.8 67.2 105.9 26.2 0.0 0.0 0.0 0.0 9.0 43.1 516.7 0 1992/93 7.4 0.7 51.3 88.3 133.9 55.5 43.9 0.0 0.0 0.0 0.0 0.0 31.8 381.0 0 1993/94 57.5 38.6 54.0 189.6 128.7 45.8 30.5 0.0 0.0 0.0 0.0 0.0 45.4 544.7 0 1994/95 0.0 62.5 25.0 1.5 35.0 53.5 17.0 12.0 0.0 0.0 0.0 0.0 17.2 206.5 0 1995/96 0.0 5.5 19.0 136.4 77.0 0.0 8.5 0.0 0.0 4.5 0.0 0.0 20.9 250.9 0 1996/97 0.0 29.2 77.0 182.8 123.0 126.7 11.5 16.5 0.0 0.0 0.0 33.4 50.0 600.1 0 1997/98 35.5 21.6 105.2 43.5 20.5 84.2 50.7 0.0 0.0 0.0 0.0 3.5 30.4 364.7 0 1998/99 32.0 3.6 53.1 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [29.6] [88.7] 273 427 Tot Mean 13.9 33.9 56.3A 93.6A 99.8A 74.8A 42.2A 6.7 0.8 0.2 0.5 4.7 [35.5] [419.1] Mean Med. 5.9 26.9 53.5A 68.6A 90.2A 59.5A 30.4A 0.0 0.0 0.0 0.0 0.0 Med. Max 88.7 174.3 182.9A 341.4A 286.1A 226.2A 176.0A 51.6 13.5 4.5 12.6 53.6 [70.8] [849.8] Max Min 0.0 0.0 0.0A 1.5A 1.4A 0.0A 0.0A 0.0 0.0 0.0 0.0 0.0 [17.2] [88.7] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 58 59 58 59 59 59 59 59 59 59 59 59 60 60 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... A ... Accumulated Data [ ] Data Not Recorded