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USGS Surface-Water 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 07257500 Illinois Bayou near Scottsville, AR


Pope County, Arkansas
Hydrologic Unit Code 11110202
Latitude  35°27'59", Longitude  93°02'28" NAD83
Drainage area 241  square miles
Gage datum 447.63 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 1947-10-01 -> 2024-09-30)

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
1 668 609 539 679 758 348 114 61 47 22 298 428
2 567 587 547 539 1,570 323 88 150 100 18 168 270
3 785 423 801 891 1,100 320 130 75 181 29 115 220
4 971 475 655 876 1,140 297 161 52 323 47 287 316
5 520 540 594 673 904 299 142 84 96 135 202 360
6 414 533 589 575 1,210 226 133 66 54 68 266 364
7 347 494 548 534 698 276 93 53 39 44 229 285
8 302 679 570 626 575 224 117 75 33 41 186 257
9 356 754 954 480 676 279 159 74 88 89 162 277
10 341 591 927 1,130 679 292 121 122 81 80 112 280
11 573 798 884 593 1,100 288 100 91 47 58 108 426
12 494 780 783 695 779 311 81 69 36 66 111 402
13 801 662 689 741 740 240 146 204 28 173 229 350
14 609 713 860 742 814 251 94 92 144 147 137 470
15 641 788 651 617 632 199 124 106 85 105 204 577
16 404 818 700 542 503 149 127 78 95 122 315 553
17 354 731 739 483 601 135 87 145 86 128 377 604
18 395 621 1,120 569 454 130 162 152 126 86 398 403
19 335 509 1,260 852 428 176 93 152 75 57 221 322
20 318 815 1,200 688 1,040 136 64 218 51 67 156 298
21 389 715 1,250 713 653 151 91 88 42 121 131 602
22 384 633 862 807 498 132 92 61 97 113 570 613
23 573 594 901 1,020 539 198 98 54 60 163 270 376
24 1,370 615 929 1,210 652 227 79 49 63 110 388 394
25 732 673 868 1,630 552 155 92 42 46 94 524 368
26 544 791 904 1,100 602 144 75 38 127 104 272 303
27 555 598 815 931 531 107 77 32 65 104 299 743
28 598 505 723 860 500 89 97 30 46 95 402 1,180
29 750 346 676 1,090 379 81 63 29 39 164 368 535
30 788   615 969 417 73 53 29 30 291 542 423
31 689   728   378   55 28   218   513