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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 -> 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 58 59 82 127 221 570 273 95 63 67 79 74
2 58 59 82 129 228 565 260 94 62 68 79 72
3 59 59 99 132 229 553 261 95 60 69 80 72
4 59 60 98 132 232 547 251 94 60 70 79 71
5 60 60 93 133 253 555 241 92 59 71 80 69
6 61 61 100 132 264 564 229 91 58 71 79 67
7 60 61 102 137 274 565 212 87 58 71 78 67
8 60 63 99 144 284 579 204 86 59 71 78 66
9 58 65 99 147 295 584 187 83 59 71 78 66
10 58 65 100 152 309 574 179 85 60 71 78 65
11 57 63 99 157 336 576 174 81 61 71 77 65
12 58 66 100 166 353 561 164 79 63 71 77 66
13 58 64 104 178 358 545 162 76 64 73 77 67
14 57 63 104 181 367 525 154 75 64 73 78 68
15 57 63 104 184 379 512 150 75 64 74 78 69
16 58 63 105 171 402 515 142 73 64 76 78 68
17 59 63 110 169 425 531 145 71 64 76 77 66
18 62 64 117 171 450 529 136 69 65 76 75 65
19 61 66 120 170 469 536 126 68 65 76 76 64
20 59 68 119 174 485 568 124 67 65 76 75 65
21 58 71 118 183 498 529 129 69 66 75 74 65
22 58 70 121 188 507 484 118 70 67 76 73 65
23 58 67 125 194 515 445 109 71 65 76 73 65
24 58 67 131 200 530 439 106 69 65 76 75 65
25 59 72 134 201 575 394 104 68 67 77 75 64
26 60 74 129 209 618 380 104 66 66 77 75 63
27 61 72 122 211 630 365 114 64 65 76 76 63
28 59 72 122 209 609 344 105 63 67 77 77 61
29 58 79 120 219 599 316 99 63 67 77 76 60
30 58   119 219 595 295 100 63 66 76 74 59
31 59   115   580   97 63   78   59