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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 06356500 SOUTH FORK GRAND RIVER NEAR CASH,SD


Perkins County, South Dakota
Hydrologic Unit Code 10130302
Latitude  45°38'55.3", Longitude 102°38'34.4" NAD27
Drainage area 1,306  square miles
Contributing drainage area 1,306  square miles
Gage datum 2,424.17 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 1946-10-01 -> 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 6.3 8.4 61 152 66 84 58 26 21 14 21 11
2 6.2 8.9 62 187 70 69 62 23 20 26 18 11
3 6.1 9.3 68 206 75 67 69 25 16 46 16 11
4 6 9.4 63 179 69 58 62 31 14 31 15 11
5 6 10 80 185 65 51 51 31 13 22 15 11
6 5.8 14 108 276 64 98 47 36 19 21 15 10
7 5.7 13 134 331 74 77 51 25 21 26 15 9.7
8 5.6 13 176 253 97 68 57 25 35 37 15 9.5
9 5.6 12 171 153 135 63 53 28 24 35 14 9.2
10 5.6 11 149 110 154 84 37 27 25 36 14 9.2
11 5.7 11 131 116 121 69 28 22 21 38 14 9.1
12 5.6 11 178 161 100 63 26 20 24 37 14 9
13 5.6 11 168 194 96 58 29 18 17 33 14 8.8
14 5.9 13 183 188 96 80 37 22 15 30 14 8.4
15 7.9 16 177 327 82 85 36 19 15 30 14 8.3
16 9.1 25 169 325 86 125 50 17 15 28 14 8.1
17 11 27 258 185 81 80 49 16 15 25 16 8.1
18 11 33 274 133 60 110 47 28 17 23 17 7.9
19 10 25 249 112 53 152 43 30 14 22 16 7.7
20 8.7 24 216 105 63 107 35 26 15 21 14 7.6
21 7.6 21 254 105 103 81 40 19 17 19 13 7.7
22 7 26 319 108 95 66 47 16 17 19 13 7.7
23 7.6 33 390 110 93 85 40 18 18 19 13 7.3
24 8.4 27 367 104 73 83 39 22 16 17 12 7.2
25 8.5 29 254 78 86 61 36 29 17 17 12 7.1
26 8.6 36 202 68 102 56 34 19 21 16 11 7.2
27 9.8 51 188 66 78 88 51 15 20 15 11 7.1
28 11 69 179 73 75 79 54 14 17 15 11 7.1
29 10 211 148 71 76 78 36 15 14 16 11 7.1
30 8.9   130 67 94 62 34 13 13 22 11 6.6
31 8.6   122   91   26 16   24   6.4