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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 07195430 Illinois River South of Siloam Springs, AR


Benton County, Arkansas
Hydrologic Unit Code 11110103
Latitude  36°06'31", Longitude  94°32'00" NAD83
Drainage area 575  square miles
Gage datum 913.14 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 1994-10-01 -> 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
1 568 637 612 1,190 1,380 680 867 292 201 245 527 883
2 495 501 548 754 1,300 727 570 255 229 236 399 566
3 521 473 673 755 1,290 626 1,080 267 269 272 377 456
4 1,040 524 819 892 1,420 576 677 311 455 244 336 429
5 1,780 527 711 723 1,340 627 544 243 289 276 314 446
6 1,030 512 616 697 1,150 553 483 254 250 1,200 338 410
7 710 706 551 656 921 868 493 251 225 776 812 452
8 784 568 672 1,140 815 579 630 407 221 362 706 399
9 642 501 764 813 940 497 730 442 349 1,050 678 382
10 537 474 808 1,460 1,440 520 842 356 333 808 413 375
11 561 609 746 1,020 1,450 496 582 326 261 885 375 359
12 598 634 644 807 1,050 490 449 275 232 530 335 361
13 990 634 853 883 1,040 512 949 282 226 598 305 537
14 916 584 951 735 939 469 572 522 472 607 308 686
15 697 768 782 661 928 533 423 378 441 415 300 648
16 542 668 815 615 837 510 667 301 288 357 331 738
17 479 892 932 565 923 792 514 400 282 325 482 1,030
18 596 659 1,090 801 794 859 367 416 372 297 568 630
19 571 530 1,740 938 659 1,050 319 364 294 281 387 535
20 478 606 1,570 633 1,080 664 291 344 261 289 333 481
21 488 1,350 1,200 654 1,150 1,220 291 294 238 306 301 557
22 481 791 1,060 1,450 1,030 1,040 368 286 368 305 386 579
23 462 667 922 1,640 995 826 335 331 485 313 336 470
24 448 1,720 804 2,930 2,190 962 305 327 488 404 605 497
25 470 1,280 1,030 2,920 1,510 699 352 257 389 529 844 459
26 505 785 1,020 2,800 1,260 557 308 257 615 397 513 444
27 439 739 1,020 1,470 1,020 592 307 265 845 390 482 2,570
28 502 745 1,130 1,130 942 745 291 254 344 366 662 2,340
29 491 337 1,050 1,680 784 1,070 286 226 296 353 565 739
30 591   947 3,380 938 883 328 217 262 615 1,030 609
31 583   1,010   775   370 213   389   644