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USGS Daily Statistics for Maryland

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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 01603000 NORTH BRANCH POTOMAC RIVER NEAR CUMBERLAND, MD


Allegany County, Maryland
Hydrologic Unit Code 02070002
Latitude  39°37'18.5", Longitude  78°46'24.3" NAD83
Drainage area 877  square miles
Gage datum 584.57 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 1928-10-01 -> 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 1,620 1,580 2,550 2,640 1,850 1,270 682 525 512 524 597 1,150
2 1,800 1,590 2,410 2,730 1,690 1,200 623 458 461 510 623 1,180
3 1,700 1,640 2,300 2,700 1,720 1,260 582 485 424 477 655 1,060
4 1,650 1,680 2,550 2,600 1,850 1,340 740 485 426 455 701 1,090
5 1,620 1,680 3,210 2,720 2,070 1,300 680 448 510 435 855 1,060
6 1,590 1,640 3,160 2,450 2,270 1,160 625 554 568 470 719 991
7 1,630 1,700 2,980 2,480 2,440 1,110 611 521 793 477 750 1,100
8 1,620 1,680 2,620 2,330 2,560 1,050 618 444 581 478 923 1,300
9 1,500 1,620 2,490 2,360 2,390 955 603 432 779 565 870 1,320
10 1,610 1,790 2,450 2,480 2,220 885 585 400 681 571 835 1,240
11 1,590 1,760 2,570 2,310 2,090 1,010 591 398 519 519 792 1,290
12 1,600 1,780 2,620 2,260 2,080 1,000 552 429 486 494 797 1,280
13 1,550 1,840 2,940 2,500 2,100 1,070 667 567 483 449 743 1,310
14 1,430 1,990 3,120 2,430 1,940 1,040 595 536 433 498 723 1,330
15 1,460 1,900 3,110 2,320 1,880 888 519 428 436 858 714 1,380
16 1,470 1,920 2,840 2,490 2,080 783 480 411 414 1,030 709 1,500
17 1,400 1,950 2,900 2,650 2,030 769 466 444 527 623 738 1,410
18 1,420 1,900 2,900 2,220 1,950 931 458 636 722 626 693 1,350
19 1,690 2,020 2,620 2,060 1,890 891 434 617 677 528 780 1,300
20 1,490 2,040 2,890 2,370 1,820 919 521 482 589 495 885 1,170
21 1,440 2,040 2,970 2,130 1,820 943 492 469 526 583 822 1,220
22 1,560 2,070 3,080 1,920 1,710 842 476 456 552 530 856 1,290
23 1,570 2,300 2,840 1,820 1,630 921 511 447 545 576 851 1,310
24 1,640 2,380 3,000 1,850 1,500 908 491 511 527 636 817 1,360
25 1,780 2,480 3,000 2,040 1,450 726 447 475 561 565 837 1,410
26 1,840 2,680 2,720 2,400 1,310 662 398 456 575 557 819 1,500
27 1,840 2,640 2,560 2,070 1,280 649 466 478 516 528 846 1,500
28 1,810 2,520 2,680 2,120 1,530 762 493 459 640 895 1,000 1,420
29 1,660 2,500 2,870 2,110 1,490 769 521 425 558 839 1,100 1,480
30 1,640   2,660 1,960 1,390 694 576 414 522 786 1,140 1,610
31 1,620   2,730   1,350   518 410   632   1,560