Country= Burkina_Faso Station= Dapola River= BlackVolta Area= 66540 km2 Lat= 10.57 Lon= -2.92 Source= RivDIS PointID= 1543 Area Units= km2 Discharge Units= m3/sec Starting Year= 1951 Ending Year= 1989 Total Years= 39 Total Usable Years= 37 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1951 -9999 -9999 11.4 10.9 24.4 62.2 103 222 521 840 486 148 -9999 1952 90.3 51.2 33.5 20.9 21.3 31.5 87.1 220 625 836 270 116 200.23 1953 56.8 32.9 30.5 14.5 21.1 52.6 101 226 539 234 82.02 44.2 119.55 1954 22 12 6.85 4.52 6.34 36.4 42.3 174 678 463 163 102 142.53 1955 70.1 38.4 21.4 15.2 16.3 25.4 70.5 252 561 591 166 106 161.11 1956 72 41.5 19.1 14.3 10.6 30.6 62.8 107 452 311 107 72.7 108.38 1957 42.2 20.9 10.3 21.6 30.3 55.4 92.6 211 404 372 120 67 120.61 1958 36.4 19.8 12.4 9.1 7.1 27.3 57.6 144 308 234 104 90.6 87.53 1959 57.5 34.8 17.8 8.78 31.5 26.5 37 146 362 151 68.8 42.7 82.03 1960 20.4 12 9.5 10.4 30.7 64.6 135 293 460 223 80.6 53.6 116.07 1961 23.8 13.2 9.26 6.77 16 46.1 54.6 156 412 217 104 75 94.48 1962 42.4 23.1 11.6 16.4 24.4 32.6 49.4 208 576 418 122 59.8 131.98 1963 23.8 12.9 4.95 6.66 33.3 15.4 108 755 782 375 130 77.8 193.73 1964 44.4 19.7 9.14 9.38 16.5 31.1 53.7 173 616 548 138 84.6 145.29 1965 51.3 32.5 15 12.5 14.5 31.9 94.6 395 488 350 124 73.6 140.24 1966 37.6 17.2 12.6 11.3 30.2 18.3 25.3 174 297 305 112 44.9 90.45 1967 18.4 9.84 7.61 8.01 8.83 14.4 35.8 129 0.34 274 103 53 55.19 1968 21.6 12.7 8.41 10.6 24.4 70.7 99.7 152 363 313 133 70.4 106.63 1969 32.9 15.3 8.94 15 16.3 37 142 355 622 384 149 71 154.04 1970 31.9 15.7 8.69 8.13 12.3 19.9 56.1 380 674 362 113 80.4 146.84 1971 45.5 24.1 12.1 11 18.5 32.2 75.1 278 591 289 80.5 35.3 124.36 1972 15.2 7.82 6.13 10.7 25.6 69.8 44.5 132 205 80 26.4 10.3 52.79 1973 6.71 5 4.3 6.29 22.5 24.1 63.1 213 155 48.4 9.21 5.07 46.89 1974 3.5 2.4 1.56 4.43 13.1 24.6 134 272 568 287 85.3 35.9 119.32 1975 13.2 5.29 3.33 11.9 12.1 22.5 69.2 143 376 156 60.6 29 75.18 1976 10.7 5.57 3.38 3.72 11.4 49.8 55.3 86.3 143 184 168 34.7 62.99 1977 10.6 5.69 3.33 2.18 18.9 29.9 57.4 164 427 137 39.6 9.89 75.46 1978 5.23 3.57 2.92 7.17 29.2 23.4 102 151 183 127 55.9 26.9 59.77 1979 7.54 3.47 1.88 1.62 20.1 22.7 114 222 384 219 83.3 38.3 93.16 1980 11.5 6.5 2.61 1.79 16.5 44 46.2 226 435 117 50 15 81.01 1981 7.42 3.05 1.14 1.02 12.1 41.1 109 212 257 98.3 35.8 9.39 65.61 1982 4.41 2.69 5.98 11.2 32.6 37 28.3 122 186 79.7 40.1 12.3 46.86 1983 6.15 3.38 0.9 0.44 13.9 41.9 61.8 136 93.5 30.6 1.27 0 32.49 1984 0 0 0 0 37 54.2 50 50.1 64 83.1 35.7 2.44 31.38 1985 0 0 0 0.86 11.6 63.7 197 370 340 140 52.2 23.6 99.91 1986 1.56 0 0.2 0.93 11.7 50.7 68 160 421 6140 43.1 16.3 576.12 1987 3.87 2.77 0.1 2.23 1.56 56.9 59.2 31.8 270 84 18.1 -9999 -9999 1988 1.63 0.2 -9999 -9999 -9999 -9999 28.7 62.3 286 111 9.52 3.75 -9999 1989 2.56 1.88 1.47 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 25.08 13.66 8.43 8.44 19.05 38.34 75.55 207.99 398.02 426.63 99.21 49.77 115.43 Std Dev 22.86 12.94 7.8 5.6 8.58 15.73 36.55 124.27 186.17 958.21 83.73 35.8 89.48