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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 06480000 BIG SIOUX RIVER NEAR BROOKINGS,SD


Moody County, South Dakota
Hydrologic Unit Code 10170203
Latitude  44°10'49", Longitude  96°44'57" NAD27
Drainage area 3,338  square miles
Contributing drainage area 2,469  square miles
Gage datum 1,552.80 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 1953-10-01 -> 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 77 65 176 1,180 841 660 528 355 188 221 208 136
2 76 65 192 1,160 840 642 507 340 187 218 205 136
3 76 64 192 1,140 824 614 498 317 188 221 201 133
4 75 63 190 1,090 802 588 565 297 191 227 198 130
5 74 63 208 1,080 772 567 578 279 204 238 193 127
6 74 63 251 1,130 754 562 530 268 208 248 193 124
7 72 64 270 1,140 748 561 517 263 202 252 190 121
8 71 63 279 1,390 765 561 490 256 192 249 189 119
9 70 64 276 1,490 813 559 463 248 185 243 186 115
10 70 67 274 1,290 844 565 455 248 182 239 179 112
11 69 71 284 1,150 863 566 455 254 188 233 170 111
12 69 71 338 1,090 862 571 457 256 234 228 161 109
13 68 72 409 1,120 831 570 454 257 369 225 160 109
14 67 72 504 1,120 788 562 443 254 308 218 159 109
15 66 71 581 1,070 753 566 435 250 261 213 162 108
16 66 72 598 1,040 719 590 417 242 241 212 161 105
17 65 74 645 1,010 691 654 400 240 236 213 162 102
18 64 77 711 1,010 681 727 383 243 243 215 162 100
19 63 83 729 1,010 677 788 379 256 267 219 162 98
20 63 94 724 1,010 659 883 405 264 298 223 164 96
21 63 106 817 990 637 938 416 262 296 225 162 94
22 63 120 887 974 620 946 416 248 286 223 159 92
23 64 138 937 989 614 875 404 234 296 216 151 90
24 64 151 1,000 1,020 623 819 384 226 349 211 147 88
25 64 150 980 989 631 817 360 217 479 206 147 86
26 63 158 950 937 619 800 345 212 375 203 147 85
27 64 165 949 897 610 728 345 212 311 202 145 84
28 65 166 1,070 875 611 666 349 210 278 201 141 82
29 65 220 1,260 861 621 614 360 204 251 200 139 81
30 65   1,300 846 637 564 369 197 230 201 138 80
31 65   1,270   654   365 193   205   78