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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 15200280 GULKANA R AT SOURDOUGH AK


Valdez-Cordova Census Area County, Alaska
Hydrologic Unit Code 19020102
Latitude  62°31'15", Longitude 145°31'51" NAD27
Drainage area 1,760  square miles
Gage datum 1,852.1 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 1972-10-01 -> 2024-09-30)

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
1 420 363 333 346 1,480 4,140 1,920 1,390 1,460 1,480 741 515
2 418 362 333 348 1,660 4,070 1,890 1,380 1,470 1,440 730 511
3 416 361 333 351 1,960 4,010 1,880 1,330 1,470 1,410 718 510
4 414 359 334 354 2,380 3,830 1,820 1,290 1,460 1,380 709 507
5 412 357 333 355 2,670 3,550 1,770 1,230 1,460 1,370 695 503
6 408 355 333 361 2,680 3,300 1,740 1,220 1,490 1,380 683 494
7 407 353 333 365 2,740 3,140 1,710 1,270 1,510 1,380 674 493
8 405 352 332 370 2,870 3,050 1,690 1,390 1,510 1,360 659 488
9 402 352 331 373 3,000 3,060 1,640 1,410 1,520 1,340 651 485
10 401 351 332 380 3,040 3,020 1,580 1,420 1,630 1,300 648 479
11 396 349 332 388 3,120 2,880 1,510 1,410 1,780 1,270 638 475
12 394 348 332 398 3,180 2,840 1,500 1,380 1,820 1,230 629 471
13 394 346 332 407 3,170 2,840 1,490 1,410 1,750 1,190 624 468
14 392 346 333 418 3,260 2,770 1,480 1,420 1,660 1,140 615 465
15 390 345 333 431 3,460 2,620 1,430 1,380 1,590 1,120 606 465
16 388 343 333 444 3,670 2,530 1,410 1,350 1,530 1,100 595 461
17 387 342 333 462 3,840 2,430 1,460 1,350 1,510 1,080 588 459
18 387 341 334 477 3,850 2,360 1,500 1,370 1,490 1,050 579 457
19 386 341 333 495 3,870 2,340 1,470 1,390 1,470 1,050 576 452
20 385 340 334 514 3,890 2,300 1,440 1,380 1,460 1,040 567 451
21 385 339 335 541 3,840 2,290 1,420 1,460 1,460 1,010 558 446
22 384 339 335 570 3,830 2,260 1,410 1,600 1,520 986 553 443
23 381 338 336 610 3,850 2,310 1,420 1,610 1,560 949 551 442
24 380 338 336 642 3,900 2,310 1,450 1,550 1,570 914 548 438
25 378 337 338 702 3,960 2,340 1,470 1,520 1,580 868 545 434
26 374 336 340 769 4,080 2,320 1,470 1,490 1,590 836 539 431
27 373 336 340 858 4,160 2,280 1,440 1,470 1,550 818 536 430
28 371 335 341 969 4,180 2,190 1,410 1,500 1,500 794 530 428
29 370 295 342 1,110 4,190 2,060 1,430 1,500 1,460 787 524 428
30 368   344 1,270 4,210 1,990 1,420 1,460 1,510 765 520 424
31 366   345   4,220   1,390 1,460   749   423