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USGS 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 12323800 Clark Fork near Galen MT


Deer Lodge County, Montana
Hydrologic Unit Code 17010201
Latitude  46°12'29.67", Longitude 112°46'02.46" NAD83
Drainage area 656  square miles
Gage datum 4,749 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 -> 2021-09-30)

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 97 93 93 122 189 447 303 102 81 84 106 107
2 96 93 93 125 188 447 286 99 79 86 107 106
3 95 94 95 126 190 445 278 94 77 87 109 104
4 92 96 97 128 192 448 267 90 77 91 111 103
5 90 98 98 132 194 461 254 92 77 95 112 100
6 89 96 101 139 201 485 241 91 79 97 113 98
7 90 101 104 142 211 489 230 89 79 99 111 95
8 91 103 106 148 219 482 218 86 80 99 112 94
9 91 107 111 150 225 467 207 84 83 99 112 94
10 91 106 127 150 232 456 197 82 84 100 111 94
11 89 102 135 149 240 450 193 82 82 100 112 95
12 89 101 133 150 243 434 184 80 81 102 112 95
13 90 101 131 151 252 437 178 81 81 103 112 96
14 88 100 132 151 259 431 172 81 81 105 110 95
15 88 100 129 148 268 422 164 79 83 105 108 93
16 89 99 130 143 284 431 155 80 84 106 107 91
17 91 99 128 143 310 449 151 80 84 107 108 90
18 92 99 125 147 330 451 148 80 84 106 109 90
19 93 98 123 150 347 443 144 78 85 105 110 90
20 92 97 122 152 358 433 142 77 87 107 111 88
21 92 99 123 158 361 422 135 78 85 108 108 86
22 91 100 125 165 362 418 131 79 83 108 108 86
23 92 99 126 173 362 404 127 83 84 108 106 87
24 91 98 127 181 369 386 121 83 83 107 106 87
25 91 97 126 183 384 371 118 83 83 107 107 86
26 93 96 127 184 386 357 115 83 82 106 106 85
27 94 94 127 184 396 343 114 81 82 106 105 84
28 92 93 126 184 403 331 112 82 82 107 104 84
29 91 103 123 183 418 323 110 80 82 108 104 86
30 92   123 188 431 318 107 79 84 108 105 86
31 92   122   439   104 80   107   89