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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 -> 2020-09-30)

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
1 401 345 320 335 1,550 3,670 1,880 1,400 1,410 1,390 721 497
2 400 345 320 337 1,740 3,600 1,870 1,400 1,410 1,380 710 493
3 397 344 320 340 2,070 3,610 1,870 1,350 1,400 1,350 697 492
4 396 342 321 344 2,510 3,490 1,810 1,300 1,390 1,310 689 489
5 394 340 320 345 2,830 3,240 1,770 1,250 1,370 1,300 674 485
6 390 338 320 352 2,830 3,020 1,740 1,220 1,390 1,320 663 475
7 388 337 320 355 2,860 2,890 1,720 1,270 1,410 1,320 654 474
8 386 336 320 362 2,970 2,830 1,700 1,390 1,410 1,290 638 469
9 384 336 319 365 3,110 2,880 1,650 1,400 1,410 1,240 631 466
10 382 335 319 372 3,160 2,870 1,570 1,370 1,490 1,200 628 460
11 377 333 319 381 3,240 2,740 1,510 1,340 1,630 1,180 618 456
12 375 332 319 393 3,310 2,730 1,490 1,320 1,670 1,140 609 452
13 374 331 320 402 3,300 2,760 1,480 1,360 1,600 1,110 605 449
14 372 331 320 414 3,380 2,700 1,480 1,390 1,520 1,070 595 447
15 370 330 320 428 3,510 2,560 1,430 1,350 1,450 1,050 587 446
16 369 329 320 442 3,630 2,480 1,400 1,320 1,410 1,030 575 443
17 368 328 321 462 3,670 2,380 1,420 1,320 1,390 1,010 567 440
18 367 327 321 477 3,630 2,310 1,450 1,350 1,390 988 559 439
19 366 327 321 497 3,570 2,290 1,430 1,370 1,380 983 556 434
20 366 326 322 517 3,520 2,250 1,390 1,360 1,370 979 547 433
21 366 326 323 546 3,410 2,250 1,380 1,440 1,360 950 538 427
22 365 325 323 577 3,390 2,210 1,370 1,590 1,370 929 534 424
23 362 324 324 619 3,440 2,250 1,390 1,610 1,390 896 532 423
24 361 325 324 654 3,500 2,240 1,420 1,550 1,400 869 530 420
25 360 324 326 718 3,590 2,290 1,450 1,510 1,420 841 527 415
26 356 323 328 790 3,730 2,290 1,460 1,460 1,450 815 521 413
27 355 323 329 886 3,840 2,260 1,440 1,430 1,430 798 518 411
28 353 322 329 1,010 3,850 2,180 1,410 1,440 1,380 773 513 410
29 352 295 331 1,160 3,860 2,040 1,430 1,420 1,360 768 506 409
30 350   332 1,330 3,840 1,950 1,430 1,390 1,410 745 502 405
31 348   335   3,780   1,400 1,410   729   405