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USGS Daily Statistics for Montana

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Questions or concerns about USGS streamflow data in Montana and Wyoming can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).


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 -> 2019-09-30)

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 38 35 38 56 82 135 71 30 28 34 38 36
2 37 37 39 58 80 131 66 30 27 34 37 35
3 36 36 40 56 80 128 66 28 27 35 38 34
4 36 35 41 57 83 132 62 28 27 36 38 34
5 34 35 41 59 83 134 59 28 29 36 38 34
6 34 36 41 65 88 141 60 28 30 36 38 34
7 34 40 44 66 93 143 56 28 29 37 38 34
8 33 43 46 66 94 142 53 28 30 36 39 33
9 33 58 50 68 95 138 51 28 30 37 39 33
10 32 71 62 67 97 137 51 27 30 36 38 34
11 32 82 64 66 100 134 51 28 30 37 38 34
12 33 68 63 65 102 130 49 26 30 38 38 34
13 33 44 68 66 104 133 49 27 31 38 38 34
14 34 36 67 68 105 129 47 26 32 38 38 34
15 33 37 58 67 106 124 45 26 31 39 38 33
16 34 37 59 65 109 131 43 26 32 38 38 33
17 34 38 59 66 121 131 43 26 32 39 38 33
18 34 38 55 67 125 129 42 26 34 38 39 33
19 35 42 57 68 127 126 39 26 33 38 38 33
20 33 50 61 69 121 119 38 25 33 39 38 33
21 33 46 62 71 121 110 36 26 32 39 38 33
22 33 40 62 75 120 106 35 27 32 39 38 33
23 33 37 67 80 125 101 35 30 32 39 36 33
24 32 37 64 82 134 94 33 28 32 39 36 33
25 33 37 56 80 143 89 33 27 33 39 36 32
26 35 36 57 80 138 85 33 28 33 39 37 32
27 38 36 56 79 134 83 34 28 33 39 37 32
28 35 38 56 79 134 80 33 29 33 39 36 32
29 34 39 53 79 134 77 32 28 33 39 35 32
30 33   54 82 132 72 33 28 34 38 35 33
31 34   55   131   32 28   39   33