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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 15072000 FISH C NR KETCHIKAN AK


Ketchikan Gateway Borough, Alaska
Hydrologic Unit Code 19010102
Latitude  55°23'31", Longitude 131°11'38" NAD27
Drainage area 34.6  square miles
Gage datum 20.00 feet above NGVD29
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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 1914-10-01 -> 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
1 393 405 294 312 457 499 388 312 428 598 714 461
2 386 384 266 332 454 524 378 294 431 591 733 445
3 370 355 251 315 467 536 365 274 450 612 692 458
4 365 355 246 297 489 537 362 282 477 572 676 456
5 378 356 251 290 497 544 358 301 467 567 650 464
6 390 359 247 299 495 532 344 326 456 606 609 485
7 441 355 238 308 492 506 347 315 447 621 572 500
8 443 363 237 310 479 483 342 294 425 622 560 478
9 402 372 241 310 465 474 342 308 436 632 544 436
10 385 348 236 315 458 476 348 337 419 657 545 443
11 384 305 231 322 461 487 352 342 415 661 533 438
12 369 298 235 354 476 495 355 329 403 703 532 411
13 359 305 250 354 487 481 357 315 390 743 546 407
14 378 313 266 349 501 472 340 305 377 765 549 399
15 391 313 264 352 517 455 317 310 382 729 544 382
16 382 311 270 371 510 436 302 328 404 684 528 373
17 407 299 267 363 503 426 298 318 395 661 514 368
18 382 306 266 365 503 427 302 304 394 692 547 380
19 369 302 289 356 497 423 298 305 419 736 566 393
20 351 302 292 363 502 428 302 327 454 744 545 407
21 339 316 301 370 509 433 306 360 513 731 572 412
22 351 310 289 371 527 430 302 386 561 751 593 420
23 360 285 275 369 538 418 293 389 568 809 571 427
24 347 276 255 365 544 414 300 382 563 787 544 434
25 345 283 255 368 524 412 314 371 539 761 514 441
26 363 297 255 398 515 397 321 383 528 737 491 435
27 362 311 259 436 500 383 312 379 517 707 478 426
28 392 307 267 452 494 384 307 385 544 676 475 407
29 398 289 285 460 498 383 309 398 575 652 512 386
30 418   286 460 497 387 300 389 584 652 511 364
31 415   299   487   303 409   694   382