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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 01598500 NORTH BRANCH POTOMAC RIVER AT LUKE, MD


Allegany County, Maryland
Hydrologic Unit Code 02070002
Latitude  39°28'44.3", Longitude  79°03'49.6" NAD83
Drainage area 406  square miles
Gage datum 943.68 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 1898-10-01 -> 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
1 898 999 1,460 1,330 1,010 786 432 372 285 334 372 594
2 890 996 1,350 1,390 910 728 375 323 301 317 374 594
3 1,010 962 1,290 1,320 861 712 467 310 291 309 382 681
4 1,010 941 1,390 1,350 980 720 439 323 313 295 388 730
5 969 906 1,650 1,320 1,130 709 419 332 326 293 433 657
6 888 907 1,650 1,290 1,250 684 409 431 363 318 424 603
7 868 994 1,570 1,320 1,220 717 376 347 405 344 500 701
8 859 984 1,430 1,230 1,280 655 382 291 414 319 581 783
9 816 994 1,370 1,250 1,230 578 388 287 434 362 542 804
10 905 1,040 1,340 1,270 1,190 578 387 288 367 372 533 767
11 914 1,020 1,350 1,190 1,130 621 403 272 379 364 515 802
12 968 1,030 1,390 1,140 1,040 591 372 311 390 337 474 854
13 942 1,060 1,550 1,170 1,040 659 425 424 354 334 445 852
14 883 1,060 1,530 1,190 1,000 654 392 339 336 330 442 833
15 917 1,000 1,530 1,220 1,090 596 344 294 316 407 424 894
16 870 1,040 1,430 1,300 1,150 547 334 319 303 434 409 862
17 823 991 1,370 1,220 1,060 563 330 312 331 342 406 792
18 826 979 1,240 1,120 1,020 553 301 549 335 343 405 773
19 836 1,020 1,260 1,050 1,030 500 320 376 394 300 411 742
20 825 1,030 1,390 1,130 1,040 479 361 327 404 303 441 714
21 861 1,050 1,500 1,030 999 482 330 338 393 314 447 796
22 923 1,100 1,550 954 891 459 326 319 420 297 467 890
23 1,050 1,200 1,480 946 851 523 329 321 376 295 459 865
24 980 1,270 1,450 1,070 846 485 309 331 344 349 480 836
25 992 1,310 1,440 1,090 806 440 295 321 322 327 480 891
26 1,050 1,360 1,380 1,090 716 410 292 313 306 354 580 858
27 1,030 1,260 1,380 1,030 762 414 349 297 322 331 484 874
28 979 1,470 1,440 1,060 905 458 344 287 382 350 514 806
29 1,010 1,340 1,440 1,090 875 472 394 284 364 385 609 847
30 1,050   1,440 1,040 817 418 412 290 342 366 616 867
31 982   1,410   726   386 282   365   862