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USGS Surface-Water Daily Statistics for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.


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 12335500 Nevada Cr ab reservoir, nr Helmville, MT


Powell County, Montana
Hydrologic Unit Code 17010203
Latitude  46°46'40.00", Longitude 112°46'04.03" NAD83
Drainage area 119  square miles
Gage datum 4,640 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 1938-10-01 -> 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 11 13 19 74 71 128 41 20 10 11 16 14
2 11 13 21 87 72 130 39 20 10 12 16 15
3 11 13 20 72 75 131 37 19 9.7 12 16 15
4 14 16 21 60 83 128 38 18 9.5 12 16 15
5 17 15 21 62 86 123 36 18 9.5 12 16 14
6 12 14 19 71 87 122 32 18 9.4 12 16 13
7 11 19 21 81 94 119 31 17 9.3 12 16 13
8 11 18 21 70 95 116 29 17 9.6 13 16 13
9 11 19 20 72 95 111 28 17 9.7 13 16 14
10 11 16 21 73 98 109 30 16 9.4 13 15 13
11 11 15 23 74 100 104 29 16 9.4 13 15 13
12 11 13 25 70 100 98 29 16 10 14 15 13
13 11 13 26 66 102 99 29 15 9.6 14 16 13
14 12 13 26 64 106 91 28 15 9.5 14 16 13
15 17 14 27 63 114 87 26 14 10 14 15 12
16 15 15 34 66 118 85 27 14 9.8 14 15 12
17 13 14 37 63 125 85 26 14 9.9 14 15 12
18 12 14 38 61 131 79 25 13 10 14 15 12
19 13 14 41 59 132 80 25 13 10 15 15 12
20 13 16 40 64 134 79 24 13 10 15 15 14
21 12 18 43 66 136 75 23 13 10 15 14 13
22 12 17 47 64 145 68 22 13 11 15 15 12
23 12 15 54 66 140 62 22 13 11 15 14 13
24 12 16 53 68 138 58 22 13 10 15 15 12
25 12 24 48 67 145 55 21 12 10 15 15 12
26 12 24 54 65 140 53 21 11 10 16 14 14
27 12 20 54 66 134 50 21 11 11 15 14 12
28 12 17 49 67 130 47 21 11 11 15 14 11
29 12 17 45 68 129 46 21 11 11 15 13 11
30 13   46 71 132 43 20 11 11 15 13 11
31 15   55   130   20 11   16   13