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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 06120500 Musselshell River at Harlowton MT


Wheatland County, Montana
Hydrologic Unit Code 10040201
Latitude  46°25'43.68", Longitude 109°50'28.30" NAD83
Drainage area 1,108  square miles
Gage datum 4,171.46 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 1906-10-01 -> 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 58 58 82 126 220 562 275 94 62 68 79 74
2 58 59 82 128 227 558 261 93 62 69 80 72
3 58 59 98 131 229 553 261 94 60 71 81 73
4 59 59 97 131 234 554 252 93 60 71 80 71
5 59 60 92 132 254 566 243 91 59 71 81 69
6 61 60 99 131 269 573 230 91 58 72 79 67
7 60 61 101 136 278 570 213 88 58 71 79 67
8 59 62 98 142 286 582 204 86 59 71 79 67
9 58 64 98 147 295 586 188 84 59 71 79 66
10 57 64 99 155 308 577 179 85 60 71 78 65
11 57 63 97 162 334 578 175 80 61 71 77 65
12 58 66 99 173 350 563 165 78 63 72 77 66
13 58 64 103 184 356 544 163 76 64 73 78 67
14 57 63 103 182 365 523 154 75 64 73 78 67
15 57 62 103 183 380 509 150 75 63 75 78 69
16 58 63 104 170 403 511 142 72 63 76 78 68
17 59 63 109 168 426 526 145 71 63 76 77 66
18 62 64 116 170 448 524 135 69 64 76 76 65
19 61 65 119 169 465 531 125 67 64 76 76 64
20 59 67 118 173 481 562 123 66 64 76 75 65
21 58 71 117 182 493 522 128 69 66 75 74 64
22 58 69 120 186 502 479 117 70 67 76 73 65
23 58 67 124 192 509 440 107 71 66 76 73 65
24 58 67 130 198 525 441 105 69 67 77 75 64
25 59 71 133 199 567 398 102 68 67 77 75 64
26 60 74 128 206 615 383 102 66 66 77 75 63
27 61 72 121 209 627 372 112 64 66 77 76 63
28 59 71 120 207 605 347 104 63 67 77 77 61
29 58 79 119 216 594 319 99 63 67 77 76 60
30 58   118 218 590 297 99 63 67 77 74 60
31 58   114   574   96 62   78   59