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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 06479438 BIG SIOUX RIVER NEAR WATERTOWN,SD


Codington County, South Dakota
Hydrologic Unit Code 10170201
Latitude  45°00'22", Longitude  97°09'53" NAD27
Drainage area 525  square miles
Contributing drainage area 230  square miles
Gage datum 1,726.66 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 1972-10-01 -> 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 5.4 3.8 22 184 103 71 56 20 14 14 31 12
2 5.2 3.9 18 211 99 73 55 29 13 15 30 11
3 5.1 4 17 202 91 69 44 80 15 15 27 11
4 4.8 4.3 20 236 84 61 44 51 16 17 25 11
5 4.6 4.4 19 251 82 56 65 42 14 18 23 10
6 4.5 4.3 19 181 92 48 88 41 15 20 21 9.9
7 4.4 4.1 20 233 91 43 76 33 18 18 20 9.6
8 4.4 3.9 21 255 96 42 68 28 15 17 19 9.6
9 4.4 3.8 19 207 112 44 70 25 15 18 18 9.4
10 4.5 3.7 21 167 122 50 64 23 16 19 17 8.8
11 4.5 3.7 35 157 111 59 54 25 16 17 16 8.5
12 4.5 3.7 62 218 97 74 51 24 20 17 16 8.3
13 4.4 3.8 96 257 101 71 42 21 32 18 15 7.9
14 4.4 3.9 109 204 95 69 35 20 24 17 15 7.7
15 4.3 4 124 177 87 73 36 22 18 18 15 7.5
16 4.2 4.2 127 176 82 88 35 22 18 21 15 7.3
17 4.1 4.8 144 167 82 69 42 20 19 31 15 7.2
18 3.9 6 140 161 71 71 64 18 18 35 15 6.9
19 3.7 8.8 138 194 68 67 48 17 16 26 15 6.4
20 3.7 9.2 144 176 65 86 38 16 15 21 15 6.3
21 3.7 12 136 156 60 102 34 15 14 20 15 6.2
22 3.8 10 142 148 57 71 30 15 13 26 15 6.1
23 3.9 13 152 135 60 81 42 14 13 32 15 6
24 3.9 19 166 123 63 75 47 13 14 27 14 5.8
25 3.8 22 170 111 59 61 47 12 18 25 14 5.7
26 3.8 29 160 103 57 50 59 12 18 23 13 5.6
27 3.8 32 173 106 55 42 40 15 16 23 13 5.5
28 3.8 27 233 110 58 39 29 15 14 34 13 5.4
29 3.7 29 241 107 63 35 24 20 12 34 13 5.4
30 3.7   279 102 59 36 22 23 12 33 12 5.5
31 3.8   235   81   20 17   35   5.5