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USGS Surface-Water Daily Statistics for Alaska

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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 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 -> 2019-09-30)

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
1 407 350 324 336 1,560 3,730 1,860 1,420 1,430 1,410 729 505
2 406 350 324 338 1,750 3,660 1,860 1,400 1,430 1,390 717 502
3 403 349 324 341 2,060 3,670 1,870 1,350 1,420 1,360 704 501
4 402 346 324 344 2,490 3,540 1,820 1,300 1,410 1,320 698 498
5 400 345 324 346 2,800 3,280 1,780 1,240 1,390 1,320 686 493
6 396 343 323 353 2,790 3,050 1,750 1,220 1,410 1,330 675 483
7 394 341 323 356 2,810 2,920 1,730 1,270 1,430 1,340 666 483
8 392 340 323 363 2,920 2,860 1,710 1,410 1,440 1,300 650 477
9 389 340 322 366 3,060 2,900 1,670 1,420 1,440 1,260 643 474
10 387 339 322 374 3,100 2,860 1,590 1,390 1,520 1,220 640 468
11 382 337 322 383 3,170 2,720 1,510 1,360 1,680 1,180 630 464
12 380 336 322 395 3,240 2,710 1,500 1,330 1,720 1,150 621 460
13 380 335 322 405 3,230 2,720 1,490 1,370 1,650 1,110 616 457
14 378 335 322 416 3,300 2,670 1,480 1,390 1,560 1,080 607 454
15 376 334 323 431 3,440 2,540 1,430 1,350 1,490 1,060 598 454
16 374 333 323 445 3,570 2,460 1,400 1,330 1,440 1,040 586 450
17 373 332 323 466 3,630 2,360 1,430 1,340 1,430 1,020 578 448
18 372 331 323 482 3,590 2,290 1,460 1,370 1,420 999 569 446
19 371 330 323 502 3,540 2,270 1,440 1,400 1,410 994 566 441
20 371 330 323 523 3,500 2,230 1,400 1,390 1,400 990 557 440
21 371 329 325 552 3,390 2,220 1,370 1,470 1,380 960 548 434
22 370 329 325 585 3,380 2,180 1,360 1,630 1,370 937 544 431
23 367 328 325 628 3,430 2,140 1,380 1,660 1,390 905 542 430
24 366 328 326 664 3,500 2,100 1,420 1,600 1,410 878 539 426
25 365 327 327 729 3,590 2,160 1,450 1,550 1,430 848 537 421
26 361 327 329 803 3,710 2,200 1,460 1,490 1,460 820 530 419
27 360 327 329 900 3,800 2,200 1,440 1,450 1,450 807 528 417
28 358 325 330 1,020 3,830 2,140 1,410 1,450 1,400 782 522 416
29 357 306 331 1,180 3,850 2,010 1,440 1,440 1,380 776 515 416
30 355   333 1,350 3,900 1,920 1,440 1,410 1,430 753 511 411
31 353   335   3,850   1,410 1,430   737   411