Department of Water Affairs, Namibia HYMONTH V86 Output 29/07/2010 Site 0784839A Windhoek Airport Site 0784839A.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 1965/66 [ ] [ ] [ ] [ ] 70.7 87.6 60.3 0.0 0.9 0.0 0.0 76.8 [37.0] [296.3] 123 1966/67 9.6 18.6 71.2 38.5 115.1 62.1 16.7 15.8 0.0 0.0 0.0 4.5 29.3 352.1 0 1967/68 0.2 67.3 59.4 58.5 30.9 112.2 8.3 39.0 10.1 0.0 0.0 0.0 32.2 385.9 0 1968/69 1.4 86.5 30.4 50.4 113.9 69.5 28.8 1.0 0.0 0.0 0.0 1.3 31.9 383.2 0 1969/70 0.0 9.5 25.5 46.7 19.9 8.8 7.1 0.0 0.0 0.0 0.0 0.0 9.8 117.5 0 1970/71 53.9 3.1 59.0 65.9 162.9 101.4 36.7 35.1 2.8 0.0 0.0 0.0 43.4 520.8 0 1971/72 0.4 26.1 15.5 149.3 1.5 173.1 133.6 0.0 0.0 0.0 0.0 0.0 41.6 499.5 0 1972/73 22.9 12.6 11.5 17.5 25.5 115.7 35.1 0.0 0.0 1.1 0.0 0.0 20.2 241.9 0 1973/74 57.9 19.0 37.2 218.8 212.6 101.6 86.4 0.0 7.5 0.0 0.0 0.0 61.7 741.0 0 1974/75 50.1 30.2 31.4 76.6 49.1 197.2 30.3 16.1 0.0 0.0 0.0 0.0 40.1 481.0 0 1975/76 0.5 25.3 26.2 167.4 104.6 176.5 12.8 3.3 0.0 0.0 0.2 0.0 43.1 516.8 0 1976/77 12.9 1.5 0.8 86.0 252.6 60.7 82.5 2.8 0.0 0.0 0.0 0.2 41.7 500.0 0 1977/78 19.0 1.2 66.0 179.7 105.6 45.0 38.9 9.9 0.0 0.0 4.0 0.1 39.1 469.4 0 1978/79 0.0 32.4 25.8 69.3 254.1 17.4 26.9 22.1 3.1 10.2 0.1 11.1 39.4 472.5 0 1979/80 7.0 70.4 23.6 44.7 103.7 140.0 0.1 0.0 0.0 0.0 2.6 27.0 34.9 419.1 0 1980/81 1.0 16.9 21.6 16.7 31.0 30.3 17.3 0.0 0.0 0.0 0.0 0.0 11.2 134.8 0 1981/82 0.0 0.4 0.3 28.5 87.4 28.3 21.3 0.0 0.0 0.0 0.0 2.5 14.1 168.7 0 1982/83 3.9 40.5 120.5 132.1 9.9 58.4 25.0 0.8 16.6 0.0 0.0 0.0 34.0 407.7 0 1983/84 23.5 42.0 54.0 14.8 54.3 40.2 79.0 6.7 0.0 0.0 0.0 0.0 26.2 314.5 0 1984/85 6.2 9.5 4.8 64.9 85.7 58.0 46.1 0.7 0.0 0.0 0.0 0.0 23.0 275.9 0 1985/86 19.2 18.3 15.6 119.3 34.7 88.8 26.1 0.0 1.1 0.0 0.0 10.4 27.8 333.5 0 1986/87 39.8 16.0 17.1 18.1 122.9 13.0 35.7 4.8 0.0 0.0 0.0 0.0 22.3 267.4 0 1987/88 7.2 10.2 25.7 119.7 32.2 183.2 76.6 16.4 0.0 0.0 0.0 0.0 39.3 471.2 0 1988/89 5.3 29.5 49.9 131.3 128.8 1.5 46.8 9.1 0.0 0.0 0.0 0.0 33.5 402.2 0 1989/90 0.0 0.0 6.5 87.2 71.4 54.8 47.3 0.0 0.2 0.0 0.0 0.0 22.3 267.4 0 1990/91 3.8 32.0 68.8 94.5 149.5 27.0 0.0 0.0 0.0 0.0 0.0 7.2 31.9 382.8 0 1991/92 12.2 33.0 85.8 24.9 41.3 40.9 4.3 0.0 0.0 0.0 0.0 0.0 20.2 242.4 0 1992/93 2.1 0.8 34.6 31.4 129.6 86.4 98.0 0.0 0.0 0.0 0.0 0.0 31.9 382.9 0 1993/94 24.9 26.5 46.7 145.6 109.4 2.9 50.1 0.0 0.0 0.0 0.0 0.0 33.8 406.1 0 1994/95 2.9 37.2 5.7 12.7 23.4 35.6 16.2 13.7 0.0 0.0 0.0 0.1 12.3 147.5 0 1995/96 1.0 6.6 1.9 51.3 44.5 13.2 2.8 0.0 0.0 6.5 0.0 0.0 10.7 127.8 0 1996/97 0.4 31.4 27.6 141.2 116.4 118.9 21.3 5.5 0.0 0.0 0.0 4.0 38.9 466.7 0 1997/98 16.2 4.3 145.4 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [55.3] [165.9] 273 1998/99 [ ] [ ] [ ] 37.2 95.6 94.3 1.3 20.8 0.0 0.0 0.0 0.0 [27.7] [249.2] 92 1999/ 0 3.0 27.9 142.0 32.5 163.1 194.4 29.7 2.3 0.0 0.0 0.0 0.0 49.6 594.9 0 761 Tot ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... [ ] Data Not Recorded Department of Water Affairs, Namibia HYMONTH V86 Output 29/07/2010 Site 0784839A Windhoek Airport Site 0784839A.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 2000/ 1 0.0 0.7 19.6 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [6.8] [20.3] 273 761 Tot Mean 12.0 23.2 40.5 78.0 92.8 77.6 36.7 6.6 1.2 0.5 0.2 4.3 [31.1] [350.7] Mean Med. 4.6 18.8 26.9 64.9 91.5 61.4 29.3 0.9 0.0 0.0 0.0 0.0 Med. Max 57.9 86.5 145.4 218.8 254.1 197.2 133.6 39.0 16.6 10.2 4.0 76.8 [61.7] [741.0] Max Min 0.0 0.0 0.3 12.7 1.5 1.5 0.0 0.0 0.0 0.0 0.0 0.0 [6.8] [20.3] Min OK 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% OK Cnt 34 34 34 33 34 34 34 34 34 34 34 34 36 36 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... [ ] Data Not Recorded