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USGS Surface-Water Daily Statistics for Arizona

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Welcome to the NWIS-Web for the Arizona Water Science Center


The majority of USGS Gaging Stations are funded though a cooperative program between the USGS other interested agencies.
Follow this link for information on the Cooperative Water Program with the USGS.

Arizona Water Science Center Home Page
Colorado Basin River Forecast Center (CBRFC) - provided by the National Weather Service, AHPS. CBRFC on an interactive map.
Threatened and Endangered USGS Gaging Stations in Arizona

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 09474000 GILA RIVER AT KELVIN, AZ.


Pinal County, Arizona
Hydrologic Unit Code 15050100
Latitude  33°06'10", Longitude 110°58'33" NAD27
Drainage area 18,011  square miles
Gage datum 1,747.09 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 1910-10-01 -> 2025-09-30)

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
1 393 579 553 620 424 379 486 878 589 254 115 158
2 309 450 629 604 427 381 485 1,000 589 657 110 164
3 268 424 645 596 421 389 505 896 577 345 107 189
4 270 427 600 581 414 394 500 864 558 274 102 186
5 316 421 584 570 414 397 520 835 509 276 102 264
6 357 369 620 580 412 402 541 819 481 303 100 257
7 344 424 601 612 406 404 534 867 467 279 106 251
8 365 420 581 603 409 409 551 916 494 266 104 245
9 514 365 629 594 408 412 536 866 482 246 101 231
10 294 417 658 571 406 415 511 930 452 259 105 277
11 390 466 751 546 403 420 525 792 489 295 107 278
12 395 541 893 528 404 424 519 743 504 218 121 248
13 324 485 680 519 405 423 540 751 479 209 155 245
14 511 458 710 519 403 424 562 822 446 242 131 251
15 468 530 700 517 398 424 619 849 431 508 114 258
16 486 572 633 514 396 430 654 763 352 329 110 259
17 581 435 643 506 393 434 653 749 330 259 114 265
18 705 408 661 500 383 438 643 695 349 225 118 332
19 1,120 409 652 491 385 441 643 740 382 228 137 600
20 1,590 513 632 489 383 446 649 783 333 241 116 883
21 946 591 611 483 378 450 680 776 328 185 109 734
22 880 558 637 482 376 448 646 800 293 186 118 568
23 702 595 696 474 375 456 727 699 288 170 116 830
24 639 565 691 459 372 456 728 680 321 171 128 770
25 452 575 656 440 371 461 782 666 270 175 177 529
26 445 539 622 432 372 474 905 647 300 152 150 451
27 472 525 616 426 373 470 847 638 299 126 139 426
28 529 514 606 422 376 468 835 627 572 119 146 445
29 697 510 630 422 374 472 839 643 305 126 147 495
30 832   659 419 373 484 966 642 240 167 152 465
31 801   639   374   891 656   138   551