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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 06479215 BIG SIOUX RIVER NEAR FLORENCE,SD


Grant County, South Dakota
Hydrologic Unit Code 10170201
Latitude  45°10'51", Longitude  97°11'09" NAD27
Drainage area 68.3  square miles
Contributing drainage area 68.3  square miles
Gage datum 1,792 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 1984-10-01 -> 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 1.5 0.83 7.4 48 34 19 15 6.3 2.7 4.9 12 3.8
2 1.5 0.84 6.2 58 31 17 11 12 3.9 4.9 11 3.7
3 1.5 0.84 5.4 68 28 15 9.7 11 5.3 5.9 9.6 3.6
4 1.4 0.84 5 82 26 14 13 9.7 4 6.1 8.6 3.5
5 1.3 0.85 5.2 89 29 13 21 11 4.1 6.6 7.9 3.4
6 1.3 0.88 6 62 29 12 29 9.1 4.6 6.5 7.4 3.2
7 1.3 0.87 6.2 82 29 12 31 9.2 3.8 6.6 7.1 3.2
8 1.3 0.89 5.4 77 29 13 32 9 3.2 6.7 6.9 3.2
9 1.3 0.91 5 67 37 15 28 7.2 3.5 6.6 6.3 3.2
10 1.3 1 7 59 39 17 22 8 3.9 6.5 5.8 3.2
11 1.2 0.99 33 51 36 29 16 7.7 4 7.2 5.6 3.2
12 1.2 0.97 36 71 36 36 14 7.3 4.7 7.1 5.4 3
13 1.2 1 27 94 34 30 12 7.1 4.7 7.2 5.1 2.9
14 1.2 1.1 27 76 32 26 11 9.2 4.3 7.5 5.2 2.7
15 1.1 1.1 34 74 30 21 11 8.1 4.6 7.7 5.3 2.6
16 1.1 1.2 49 65 33 19 11 7 4.5 7.9 5.3 2.5
17 1.1 1.7 50 52 26 18 18 6.7 4.4 10 5.1 2.3
18 1.1 2.5 43 56 24 18 19 5.7 4.3 9.9 5 2.2
19 1 2.9 50 62 22 20 19 5 4.3 8.6 5.1 2.1
20 1 4 59 58 20 21 18 4.9 4.1 7.9 5 2.1
21 0.98 3.8 49 53 18 20 16 4.8 3.9 8.4 4.7 2
22 0.96 4.2 45 49 17 19 12 4.5 4.7 11 4.4 2
23 0.94 3.8 53 44 18 20 11 4.1 4.8 10 4.6 1.9
24 0.92 4.4 50 40 17 20 10 3.7 5.9 9.8 4.3 1.9
25 0.89 7.3 50 36 16 17 27 3.7 6.4 9.7 4.2 1.8
26 0.87 15 56 35 15 15 20 3.5 5.4 9.2 4.3 1.8
27 0.87 16 76 35 15 13 13 3.3 4.7 10 4.2 1.7
28 0.87 9.3 96 35 16 11 9.7 3.2 4.3 16 4 1.7
29 0.84 8 87 34 15 10 8.3 3.6 3.9 13 3.9 1.7
30 0.83   77 34 16 14 7.3 3.7 4.2 13 3.9 1.7
31 0.84   55   18   6.9 3   13   1.6