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USGS Daily Statistics for Arkansas

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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
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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 -> 2018-09-30)

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
1 498 635 615 1,200 1,080 664 900 289 185 229 533 845
2 453 495 549 752 1,170 728 576 253 218 222 391 533
3 490 466 681 758 1,110 624 1,130 260 264 264 373 441
4 872 521 835 898 1,050 570 700 310 467 236 317 421
5 1,710 524 723 717 1,230 637 559 243 288 272 289 443
6 984 510 624 697 1,010 546 489 257 245 481 327 408
7 670 674 557 658 808 483 441 254 218 294 825 453
8 760 519 682 1,170 728 442 631 422 215 251 718 399
9 620 472 729 825 859 430 752 415 355 1,040 691 383
10 517 451 758 1,500 1,450 486 881 345 338 783 416 376
11 543 588 730 1,040 1,470 474 600 326 260 533 377 359
12 496 550 626 823 1,020 473 459 274 231 386 336 362
13 921 582 815 902 1,050 501 1,010 284 223 533 304 545
14 879 545 923 683 945 463 596 539 488 568 308 698
15 664 749 758 620 942 537 436 349 457 372 300 654
16 510 651 802 592 849 511 699 289 292 318 333 746
17 449 890 935 550 911 811 521 370 286 291 490 1,060
18 573 652 1,110 797 799 889 366 354 384 265 580 638
19 484 521 1,790 941 640 1,080 315 344 300 252 392 541
20 405 591 1,610 631 1,110 660 292 318 264 258 336 485
21 439 1,360 1,230 657 1,170 1,290 293 274 238 248 302 565
22 440 788 1,090 1,480 1,020 1,100 372 270 366 258 391 588
23 422 658 941 1,730 1,010 557 338 286 486 281 339 475
24 412 1,760 799 3,150 2,300 535 309 290 409 254 620 505
25 442 1,300 1,040 3,130 1,570 597 362 232 312 236 869 465
26 483 789 1,030 2,980 1,320 493 315 238 507 228 525 450
27 418 745 1,030 1,550 1,060 562 315 232 816 240 493 2,540
28 486 753 1,160 1,180 982 744 298 227 306 281 679 2,330
29 479 337 1,070 1,790 793 1,110 290 208 268 285 578 708
30 586   923 3,640 786 912 331 200 241 631 1,060 586
31 579   984   735   352 192   395   600