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USGS Daily Statistics for South Dakota

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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 06357800 GRAND RIVER AT LITTLE EAGLE,SD


Corson County, South Dakota
Hydrologic Unit Code 10130303
Latitude  45°39'28", Longitude 100°49'04" NAD27
Drainage area 5,316  square miles
Contributing drainage area 5,316  square miles
Gage datum 1,625.89 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 1958-10-01 -> 2025-09-30)

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 36 51 304 940 526 445 331 118 84 79 105 62
2 37 54 291 944 497 368 328 116 86 91 94 62
3 36 77 249 835 428 375 260 104 95 96 92 59
4 36 72 244 744 375 291 248 118 105 86 90 56
5 36 60 231 677 346 245 234 172 91 92 84 53
6 35 57 295 628 329 255 241 144 85 119 83 50
7 35 63 344 599 369 348 263 134 82 160 80 49
8 35 84 361 588 432 415 233 127 92 150 81 46
9 34 111 428 616 628 466 263 114 128 147 78 45
10 34 177 408 651 755 534 244 100 130 134 78 45
11 34 166 559 631 671 370 202 108 94 141 78 44
12 34 179 639 667 643 337 190 139 92 140 76 43
13 33 148 755 724 570 369 196 176 99 180 78 42
14 34 131 793 684 483 426 238 171 103 201 76 41
15 36 133 769 674 418 323 216 135 91 192 77 41
16 37 134 836 654 433 296 187 118 82 189 80 41
17 37 124 878 592 402 340 284 110 76 159 79 41
18 37 134 955 583 381 320 262 154 74 160 78 41
19 50 137 903 585 347 386 203 125 73 175 75 40
20 96 154 910 627 365 532 239 112 86 148 70 40
21 89 193 1,170 597 373 399 211 106 106 142 69 39
22 65 199 1,520 652 425 399 188 103 132 225 66 39
23 50 190 1,870 656 496 368 173 113 136 176 69 38
24 49 194 1,570 602 606 331 144 213 109 127 68 38
25 51 204 1,330 552 477 323 146 304 121 110 68 38
26 66 240 1,170 487 436 329 133 141 110 102 69 37
27 82 241 1,260 495 434 295 149 116 97 98 69 37
28 76 249 1,350 497 413 266 198 102 85 109 64 37
29 70 284 1,190 592 396 254 177 128 80 102 65 37
30 63   1,000 609 395 293 145 109 80 96 62 36
31 54   956   448   129 96   108   36