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USGS Daily Statistics for the Nation

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 01033000 Sebec River at Sebec, Maine


Piscataquis County, Maine
Hydrologic Unit Code 01020004
Latitude  45°16'12", Longitude  69°06'44" NAD83
Drainage area 325  square miles
Contributing drainage area 325  square miles
Gage datum 295.72 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 1924-10-01 -> 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
1 525 485 462 1,120 1,990 678 482 273 272 401 477 670
2 519 466 472 1,230 1,930 620 493 273 258 403 480 656
3 510 455 469 1,260 1,880 584 452 266 228 405 497 637
4 486 457 470 1,320 1,880 586 390 258 233 401 602 641
5 447 450 470 1,350 1,830 575 389 297 250 415 628 637
6 431 473 474 1,340 1,770 571 385 321 247 406 614 653
7 429 467 491 1,320 1,700 566 380 308 246 406 619 673
8 430 463 500 1,360 1,600 544 391 317 256 414 643 674
9 444 461 504 1,400 1,490 571 382 330 273 399 681 677
10 473 454 503 1,460 1,410 592 373 345 294 396 693 680
11 479 454 513 1,510 1,330 599 362 363 305 385 691 688
12 466 484 518 1,570 1,280 563 359 368 332 382 681 706
13 439 499 549 1,680 1,240 529 372 360 343 379 655 705
14 424 489 594 1,750 1,170 513 362 337 373 374 615 697
15 419 480 621 1,780 1,110 504 338 320 386 367 590 671
16 414 486 629 1,820 1,050 486 319 285 408 357 596 630
17 401 476 620 1,840 1,000 484 331 289 448 364 577 593
18 397 460 624 1,900 949 492 311 285 448 369 545 608
19 399 451 628 1,930 919 510 295 271 424 376 554 623
20 411 462 682 1,960 897 513 290 252 441 392 590 610
21 405 468 673 2,000 879 493 286 243 447 389 587 619
22 400 476 671 2,060 861 483 298 250 464 377 572 683
23 401 479 679 2,110 867 482 280 244 475 378 567 656
24 398 471 680 2,140 847 455 275 239 458 420 561 595
25 420 470 680 2,120 820 441 280 234 475 457 550 571
26 463 462 708 2,130 785 440 272 231 468 490 556 562
27 472 460 777 2,130 757 422 276 230 445 491 625 569
28 492 466 841 2,130 769 414 257 230 439 507 654 595
29 507 415 889 2,110 740 439 248 236 429 514 661 594
30 502   951 2,050 718 448 251 259 409 514 679 568
31 492   1,000   708   260 277   504   546