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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 09429500 COLORADO RIVER BELOW IMPERIAL DAM, AZ-CA


Imperial County, California
Hydrologic Unit Code 15030107
Latitude  32°52'03.3", Longitude 114°28'19.6" NAD83
Drainage area 188,500  square miles
Contributing drainage area 184,500  square miles
Gage datum 130 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 2018-10-01 -> 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
1 886 473 372 729 554 427 401 448 630 348 342 439
2 583 630 366 977 458 352 396 450 1,250 248 360 433
3 674 492 374 899 412 332 392 429 1,380 396 361 404
4 552 359 383 724 439 335 377 433 1,030 308 361 381
5 468 395 417 800 545 345 362 457 688 291 363 378
6 445 457 435 664 374 347 362 473 526 267 360 371
7 577 456 414 848 381 335 369 475 478 276 361 447
8 515 464 440 807 356 307 387 520 570 368 357 500
9 542 451 411 642 367 290 348 548 576 322 344 555
10 605 426 464 644 372 322 375 488 736 277 358 552
11 526 464 696 647 372 348 376 473 623 282 361 590
12 510 488 718 653 368 348 379 641 481 283 361 731
13 385 479 591 641 375 362 382 716 376 268 361 487
14 376 502 424 633 394 366 409 442 365 272 361 358
15 373 538 651 643 395 340 399 379 387 317 376 355
16 393 463 827 610 416 508 404 402 386 486 391 356
17 417 448 881 657 499 372 419 436 399 596 406 404
18 401 400 732 655 383 525 393 547 388 543 429 505
19 372 343 840 699 386 445 407 689 397 365 374 498
20 431 444 1,020 746 417 552 450 531 406 325 552 335
21 734 328 723 713 407 377 642 497 435 348 840 310
22 606 359 751 699 516 412 411 468 411 360 697 364
23 655 339 591 684 371 416 348 484 408 347 561 378
24 750 343 595 814 520 403 343 660 407 342 445 329
25 675 344 596 716 396 384 354 637 404 326 430 309
26 595 336 636 677 390 403 367 543 537 291 434 290
27 605 350 536 604 390 482 394 549 766 302 421 298
28 617 353 542 592 375 419 393 426 973 306 479 298
29 506 413 611 645 436 391 383 438 820 298 596 284
30 435   525 765 393 388 418 455 396 290 465 381
31 453   696   439   479 459   302   642