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USGS 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 133.24 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 2018-10-01 -> 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
1 806 452 355 758 488 407 398 433 589 324 337 419
2 559 588 351 996 439 354 398 437 1,090 252 353 415
3 613 465 358 861 404 340 397 419 1,210 373 399 386
4 514 358 365 729 501 357 383 427 920 305 349 390
5 444 388 393 751 491 343 370 447 637 296 347 368
6 424 442 410 646 361 342 369 463 502 276 367 361
7 538 436 391 716 365 332 373 463 461 283 346 426
8 507 441 411 668 345 316 387 498 537 360 342 474
9 495 429 389 548 350 299 358 519 543 324 331 522
10 557 409 434 567 353 327 381 469 669 280 353 518
11 496 442 634 552 352 356 381 459 564 280 356 539
12 486 491 654 555 350 357 383 595 448 276 356 666
13 376 449 628 551 356 369 386 656 360 262 348 460
14 364 474 450 543 371 377 408 415 348 266 346 347
15 360 503 612 550 373 460 400 356 363 300 358 345
16 385 435 752 526 388 772 406 385 372 439 369 347
17 403 423 795 560 447 457 417 415 378 530 380 389
18 389 382 666 559 365 528 399 513 361 489 399 480
19 365 334 758 590 367 445 413 632 367 416 356 476
20 415 421 921 739 391 533 447 500 374 318 516 335
21 673 365 662 609 384 385 603 458 395 334 757 314
22 564 416 683 593 463 414 426 432 380 348 638 359
23 631 399 553 583 359 417 355 448 378 343 526 371
24 754 403 556 673 467 406 352 600 374 337 430 329
25 689 378 558 602 381 391 370 586 364 324 421 312
26 620 357 592 573 384 406 364 511 472 294 413 296
27 627 355 499 517 382 471 385 518 667 303 397 302
28 628 339 512 509 365 417 381 417 842 308 444 303
29 503 413 570 550 409 391 374 432 711 302 549 290
30 530   494 636 376 388 396 445 359 295 440 369
31 489   653   414   443 448   304   587