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USGS 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
1 404 347 320 330 1,590 3,730 1,860 1,420 1,430 1,410 726 501
2 402 347 320 332 1,780 3,660 1,860 1,400 1,430 1,390 715 498
3 399 346 320 335 2,080 3,670 1,870 1,350 1,420 1,360 702 497
4 399 343 320 338 2,470 3,540 1,820 1,300 1,410 1,320 696 494
5 397 342 320 340 2,780 3,280 1,780 1,240 1,390 1,320 685 490
6 392 340 319 347 2,780 3,050 1,750 1,220 1,410 1,330 674 479
7 390 338 319 351 2,800 2,920 1,730 1,270 1,430 1,340 665 479
8 389 337 319 357 2,900 2,860 1,710 1,410 1,440 1,300 649 474
9 386 337 318 360 3,010 2,900 1,670 1,420 1,440 1,260 642 470
10 384 336 318 368 3,060 2,860 1,590 1,390 1,520 1,220 638 464
11 379 334 317 377 3,150 2,720 1,510 1,360 1,680 1,180 628 460
12 377 333 318 390 3,230 2,710 1,500 1,330 1,720 1,150 619 456
13 377 332 318 400 3,240 2,720 1,490 1,370 1,650 1,110 614 453
14 375 332 318 412 3,320 2,670 1,480 1,390 1,560 1,080 604 451
15 372 331 318 427 3,460 2,540 1,430 1,350 1,490 1,060 595 450
16 371 329 318 441 3,610 2,460 1,400 1,330 1,440 1,040 583 447
17 370 328 318 463 3,660 2,360 1,430 1,340 1,430 1,020 575 444
18 370 327 318 479 3,630 2,290 1,460 1,370 1,420 999 566 443
19 369 327 317 500 3,580 2,270 1,440 1,400 1,410 994 563 438
20 369 327 318 521 3,540 2,230 1,400 1,390 1,400 990 554 437
21 368 326 319 552 3,430 2,220 1,370 1,470 1,380 960 544 431
22 368 325 319 585 3,420 2,180 1,360 1,630 1,370 937 540 428
23 365 324 319 629 3,470 2,140 1,380 1,660 1,390 905 538 427
24 363 325 320 666 3,540 2,100 1,420 1,600 1,410 878 535 423
25 362 324 321 733 3,630 2,160 1,450 1,550 1,430 848 533 418
26 358 323 323 810 3,760 2,200 1,460 1,490 1,460 820 526 416
27 357 323 323 910 3,850 2,200 1,440 1,450 1,450 807 524 414
28 355 322 324 1,040 3,890 2,140 1,410 1,450 1,400 782 518 413
29 354 306 325 1,190 3,910 2,010 1,440 1,440 1,380 776 511 413
30 352   327 1,370 3,900 1,920 1,440 1,410 1,430 753 507 408
31 350   329   3,850   1,410 1,430   737   408