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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 21 - 22 years of record in, ft3/s   (Calculation Period 1994-10-01 -> 2017-09-30)

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
1 529 674 533 1,180 783 646 912 292 178 231 566 903
2 481 521 498 716 1,020 713 577 254 214 224 410 564
3 521 491 662 732 1,000 605 1,130 261 263 268 390 465
4 939 552 841 886 966 526 695 306 476 237 330 443
5 1,850 556 727 689 1,180 499 535 240 290 271 299 467
6 1,060 540 626 676 954 482 476 249 245 490 342 429
7 718 720 555 645 765 438 433 231 217 297 888 480
8 816 550 692 1,210 696 406 631 422 214 253 771 421
9 660 499 749 842 840 401 758 418 360 1,080 740 404
10 547 476 775 1,580 1,460 465 901 346 343 810 439 397
11 577 626 748 1,090 1,480 457 609 325 262 548 396 378
12 526 585 630 853 959 461 463 266 232 395 352 382
13 992 620 841 941 983 492 1,040 261 224 548 318 582
14 944 579 966 695 917 455 608 509 501 585 321 750
15 692 794 789 635 925 535 441 318 468 380 312 702
16 524 685 840 607 834 509 717 259 296 319 347 803
17 456 949 987 541 904 824 531 256 289 294 519 1,150
18 600 684 1,180 811 790 894 370 278 381 268 619 684
19 505 544 1,930 983 615 1,070 317 272 300 255 414 578
20 421 615 1,730 648 751 658 293 273 264 261 353 515
21 459 1,210 1,310 544 977 1,320 294 241 238 250 316 598
22 446 726 1,160 903 934 1,120 378 246 372 236 413 626
23 398 602 1,000 1,610 960 561 343 267 499 254 356 490
24 409 1,090 848 3,180 2,330 540 313 277 418 246 663 519
25 450 955 996 3,200 1,580 606 368 219 317 232 937 483
26 498 670 1,050 2,750 1,320 498 319 227 522 226 561 469
27 430 671 790 1,210 1,060 571 319 223 844 241 525 2,760
28 507 627 744 1,080 944 763 293 219 311 287 729 2,530
29 501 337 807 800 766 1,150 284 200 271 293 616 755
30 620   733 775 770 936 334 192 244 673 1,130 622
31 612   908   722   358 185   415   639