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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 12323600 Silver Bow Creek at Opportunity MT


Deer Lodge County, Montana
Hydrologic Unit Code 17010201
Latitude  46°06'27.93", Longitude 112°48'19.02" NAD83
Drainage area 343  square miles
Gage datum 4,912 feet above NGVD29
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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 1987-10-01 -> 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 37 35 38 57 86 133 73 29 27 35 40 36
2 37 36 39 58 84 130 68 30 27 36 40 36
3 37 35 40 59 85 128 67 27 27 36 40 36
4 36 35 41 62 87 132 63 27 27 37 40 35
5 35 35 41 65 87 133 60 28 29 37 40 35
6 34 36 43 70 92 137 61 28 30 36 40 35
7 34 39 45 68 96 141 57 28 29 37 40 35
8 34 41 47 71 97 139 54 28 31 37 41 34
9 34 53 49 75 98 136 52 28 31 38 40 34
10 34 63 59 74 98 134 52 27 30 37 40 35
11 33 72 61 72 100 131 52 29 31 38 39 35
12 34 60 60 69 102 128 49 27 31 39 39 35
13 34 42 65 68 104 131 49 27 31 39 39 35
14 34 36 63 69 105 126 47 26 31 39 40 35
15 33 37 56 69 107 121 45 25 31 39 40 34
16 34 37 57 67 110 127 43 25 32 39 40 34
17 34 37 58 68 122 128 43 25 32 40 40 33
18 35 38 55 68 127 129 41 25 33 39 40 34
19 35 40 57 69 128 125 39 25 33 40 40 34
20 34 47 61 71 123 118 38 25 33 40 40 34
21 34 45 62 74 122 109 36 26 32 40 39 34
22 33 39 61 78 121 105 35 28 33 40 39 33
23 33 37 64 82 126 99 34 30 33 40 37 33
24 32 37 62 84 133 94 33 28 33 40 37 33
25 33 37 56 83 140 88 33 27 34 40 37 32
26 34 36 59 83 136 84 33 28 33 40 37 32
27 37 36 58 82 135 82 33 28 34 40 37 32
28 34 38 57 82 134 80 33 29 33 40 36 32
29 33 39 55 82 134 80 32 28 33 40 35 33
30 33   54 85 132 75 32 27 35 39 35 33
31 33   56   130   32 28   40   33