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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 -> 2020-09-30)

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
1 268 600 364 1,210 774 403 392 293 373 401 230 418
2 296 1,040 368 1,620 553 398 392 274 375 275 232 415
3 349 730 365 1,570 361 407 383 271 367 270 218 339
4 404 340 367 1,070 385 385 384 292 376 264 241 229
5 423 404 390 1,330 784 395 375 318 402 266 263 218
6 356 428 382 1,100 453 346 398 344 371 261 272 227
7 427 472 359 1,550 399 342 404 370 363 270 275 503
8 315 439 368 1,390 368 341 478 390 396 750 266 667
9 246 421 371 965 371 330 304 394 415 506 262 761
10 246 321 587 969 371 342 306 408 410 261 259 560
11 243 307 1,150 974 370 394 380 415 398 250 246 793
12 234 500 1,220 993 373 399 396 419 398 249 263 733
13 232 458 979 995 380 398 397 408 404 246 271 527
14 244 543 491 974 444 395 399 399 412 232 338 261
15 266 762 952 967 433 414 396 397 469 210 413 266
16 273 701 1,090 826 477 755 400 399 388 263 472 273
17 276 685 907 914 704 418 404 398 378 224 521 342
18 277 537 836 946 412 796 399 408 388 216 602 570
19 286 365 760 945 417 587 369 415 395 213 347 554
20 299 317 741 945 503 361 376 411 400 298 1,240 267
21 312 318 732 879 485 371 1,410 416 415 265 2,700 255
22 319 314 833 824 475 378 761 402 417 249 1,920 263
23 320 311 873 834 410 391 364 398 407 220 1,140 269
24 529 307 886 1,160 413 385 359 381 399 231 446 273
25 549 317 906 935 412 350 370 362 405 239 293 275
26 550 312 752 822 406 399 352 527 1,090 237 284 279
27 658 360 406 719 403 403 354 682 2,320 237 279 279
28 382 373 533 705 448 398 350 362 1,970 230 499 271
29 423 383 856 828 411 396 349 357 599 241 829 269
30 484   864 1,150 414 376 348 357 476 247 451 270
31 533   1,010   406   327 372   237   266