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USGS Daily Statistics for Maine

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The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 01054300 Ellis River at South Andover, Maine


Oxford County, Maine
Hydrologic Unit Code 01040002
Latitude  44°35'36", Longitude  70°43'59" NAD83
Drainage area 131  square miles
Contributing drainage area 131  square miles
Gage datum 619.16 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1962-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 227 134 136 480 912 250 294 95 80 135 251 382
2 213 126 131 574 877 239 314 88 75 172 232 342
3 200 135 131 596 854 321 246 94 70 150 275 295
4 178 156 132 601 853 297 219 112 71 139 307 268
5 170 158 138 519 756 270 200 111 70 127 258 223
6 163 154 168 483 633 257 168 120 72 114 267 208
7 162 138 223 479 580 239 137 124 72 105 264 205
8 151 127 214 509 541 224 129 112 61 133 295 215
9 163 119 197 496 545 219 131 139 63 176 310 245
10 198 114 196 540 552 232 135 169 74 176 255 256
11 220 130 218 592 511 242 189 169 69 138 238 288
12 200 174 206 675 488 262 172 125 64 126 224 382
13 214 144 222 724 527 260 134 106 80 120 234 404
14 203 126 248 843 480 255 128 114 77 161 246 328
15 192 119 261 907 486 237 128 95 71 242 258 340
16 168 115 242 945 487 215 120 107 67 258 283 276
17 155 117 265 931 538 243 137 121 61 239 307 243
18 149 117 318 992 484 261 111 108 56 220 273 567
19 200 117 302 964 461 222 113 84 94 188 228 437
20 166 119 284 999 486 208 99 72 92 197 245 294
21 152 153 317 1,020 464 206 116 74 70 295 277 267
22 145 155 281 1,010 419 208 103 73 71 243 237 339
23 139 131 290 1,030 357 193 88 74 89 220 235 297
24 141 126 329 1,060 349 191 102 69 134 267 213 376
25 145 150 326 1,080 344 169 131 62 100 259 206 405
26 176 149 357 956 356 219 102 74 86 300 263 404
27 175 151 337 963 346 242 84 64 111 295 302 317
28 161 141 351 979 341 199 85 92 111 290 279 351
29 148 146 390 927 300 268 100 138 111 340 315 340
30 136   424 835 291 281 163 83 122 385 338 271
31 130   457   260   119 78   312   243