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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 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 -> 2021-09-30)

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
1 259 645 327 887 620 353 339 321 390 513 424 542
2 334 910 328 1,190 479 345 338 301 397 273 490 539
3 433 677 326 1,150 437 350 333 350 398 247 487 485
4 460 423 329 822 508 339 331 318 404 258 492 411
5 452 491 345 992 683 346 333 335 417 273 496 397
6 454 504 339 815 398 314 352 352 403 276 490 403
7 484 559 323 1,120 363 311 356 370 401 284 494 590
8 376 556 328 1,040 351 310 375 388 418 524 477 701
9 334 543 330 757 356 301 319 384 425 402 482 767
10 344 477 472 761 355 305 320 368 420 279 491 636
11 374 486 839 768 345 338 347 389 413 270 474 774
12 402 629 891 781 343 341 347 754 407 268 478 728
13 401 600 730 783 344 347 347 580 409 263 481 588
14 404 654 409 768 380 346 388 394 411 257 513 414
15 411 732 712 766 380 359 372 362 429 278 552 419
16 417 577 801 673 410 586 354 396 388 315 583 422
17 419 544 698 728 557 365 423 415 388 263 615 470
18 419 445 659 754 367 618 386 623 392 271 646 619
19 424 330 589 872 369 480 415 629 385 291 507 608
20 511 294 579 957 425 638 339 473 395 412 963 379
21 1,110 295 569 916 412 328 679 396 456 460 1,680 312
22 866 296 636 896 406 333 570 408 430 487 1,330 259
23 522 294 662 866 400 347 372 521 438 449 978 262
24 628 292 671 1,080 375 342 371 716 435 433 627 261
25 589 298 684 921 361 321 374 731 432 399 545 259
26 582 295 586 861 357 351 364 509 729 310 565 263
27 733 326 354 765 354 488 406 638 1,320 342 566 264
28 788 333 435 750 383 383 370 369 1,260 350 712 260
29 639 375 647 828 360 345 369 368 870 323 865 258
30 553   654 949 363 340 369 372 568 302 602 259
31 597   751   358   350 383   331   254