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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 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
1 806 452 355 758 488 407 376 408 589 324 337 419
2 559 588 351 996 439 354 369 412 1,090 252 353 415
3 613 465 358 861 404 340 364 396 1,210 373 399 386
4 514 358 365 729 501 357 352 403 920 305 349 390
5 444 388 393 751 491 343 341 420 637 296 347 368
6 424 442 410 646 361 342 341 434 502 276 367 361
7 538 436 391 716 365 332 359 436 461 283 346 426
8 507 441 411 668 345 316 372 467 537 360 342 474
9 495 429 389 548 350 299 343 486 543 324 331 522
10 557 409 434 567 353 327 372 443 669 280 353 518
11 496 442 634 552 352 365 374 434 564 280 356 539
12 486 491 654 555 350 346 373 551 448 276 356 666
13 376 449 628 551 356 366 377 656 360 262 348 460
14 364 474 450 543 371 373 389 415 348 266 346 347
15 360 503 612 550 373 443 368 356 363 300 358 345
16 385 435 752 526 388 714 388 385 372 439 369 347
17 403 423 795 560 447 445 422 415 378 530 380 389
18 389 382 666 559 365 506 379 513 361 489 399 480
19 365 334 758 590 367 434 405 632 367 416 356 476
20 415 421 921 739 391 508 436 500 374 318 516 335
21 673 365 662 609 384 377 567 458 395 334 757 314
22 564 416 683 593 463 403 416 432 380 348 638 359
23 631 399 553 583 359 405 357 448 378 343 526 371
24 754 403 556 673 467 397 359 600 374 337 430 329
25 689 378 558 602 381 381 358 586 364 324 421 312
26 620 357 592 573 384 395 349 511 472 294 413 296
27 627 355 499 517 382 454 367 518 667 303 397 302
28 628 339 512 509 365 407 364 417 842 308 444 303
29 503 413 570 550 409 379 358 432 711 302 549 290
30 530   494 636 376 375 377 445 359 295 440 369
31 489   653   414   417 448   304   587