Results
| Country: | Brasil
| | Station: | Envira | | River: | Tarauaca | | Area: | 48317 km2 | | Lat: | -7.43 | | Lon: | -70.05 | | Source: | ANEEL | | PointID: | 7 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1978 | | Ending Year: | 1993 | | Total Years: | 16 | | Total Usable Years: | 15 | |
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| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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| 1978 | 1357 | 1906 | 2229 | 2578 | 1133 | -9999 | -9999 | 175 | 166 | 665 | 1273 | 2623 | -9999 |
| 1979 | 1817 | 1413 | 3170 | -9999 | -9999 | 667 | 176 | 141 | 196 | 241 | 900 | 1648 | -9999 |
| 1980 | 1906 | 2434 | 2585 | 1470 | 1127 | 574 | 294 | 195 | 186 | 318 | 560 | 950 | 1049.92 |
| 1981 | 1390 | 3107 | 2688 | 1818 | 859 | 477 | 243 | 170 | 148 | 237 | 989 | 1885 | 1167.58 |
| 1982 | 3231 | 3434 | 3244 | 2773 | 960 | 515 | 253 | 218 | 301 | 663 | 1208 | 2879 | 1639.92 |
| 1983 | 2589 | 2048 | 3070 | 1510 | 1071 | 373 | 175 | 128 | 118 | 123 | 786 | 1022 | 1084.42 |
| 1984 | 2278 | 3583 | 3182 | 2458 | 1034 | 362 | 223 | 142 | 157 | 534 | 1700 | 2436 | 1507.42 |
| 1985 | 2286 | 1829 | 2352 | 2315 | 1231 | 429 | 237 | 203 | 261 | 657 | 1512 | 1264 | 1214.67 |
| 1986 | 2065 | 3265 | 3438 | 2752 | 1084 | 531 | 241 | 195 | 283 | 544 | 916 | 2714 | 1502.33 |
| 1987 | 3168 | 2211 | 1769 | 1859 | 982 | 284 | 189 | 147 | 139 | 260 | 1052 | 2478 | 1211.5 |
| 1988 | 1556 | 3082 | 1947 | 2054 | 1276 | 583 | 230 | 140 | 117 | 228 | 766 | 1872 | 1154.25 |
| 1989 | 1918 | 3288 | 3366 | 2961 | 1151 | 549 | 271 | 165 | 137 | 392 | 721 | 815 | 1311.17 |
| 1990 | 2069 | 3010 | 2365 | 1911 | 1057 | 780 | 537 | 347 | 382 | 581 | 1036 | 2898 | 1414.42 |
| 1991 | 2320 | 2465 | 2983 | 2192 | 1215 | 665 | 271 | 208 | 188 | 245 | 971 | 1534 | 1271.42 |
| 1992 | 1517 | 2180 | 3676 | 1755 | 694 | 400 | 210 | 125 | 174 | 324 | 723 | 1572 | 1112.5 |
| 1993 | 2740 | 2993 | 3387 | 2993 | 1578 | 426 | 222 | 181 | 148 | 403 | 1886 | 2072 | 1585.75 |
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| Avg | 2137.94 | 2640.5 | 2840.69 | 2226.6 | 1096.8 | 507.67 | 251.47 | 180 | 193.81 | 400.94 | 1062.44 | 1916.38 | 1301.95 |
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| Std Dev | 559.31 |
638.67 |
557.03 |
491.74 |
192.85 |
129.48 |
83.19 |
51.74 |
72.49 |
175.22 |
359.1 |
677.66 |
187.69 |
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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