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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 06048650 E Gallatin R ab Water Reclamation Fa nr Bozeman MT


Gallatin County, Montana
Hydrologic Unit Code 10020008
Latitude  45°43'32.4", Longitude 111°03'58.3" NAD83
Drainage area 226  square miles
Gage datum 4,625 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 2014-10-01 -> 2025-09-30)

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 46 49 59 133 509 384 149 47 41 58 62 54
2 46 50 59 134 497 366 135 48 39 60 65 54
3 46 49 58 138 489 362 132 51 39 60 68 54
4 46 47 56 148 487 350 134 52 44 63 65 52
5 47 48 55 159 507 332 125 52 46 62 66 50
6 46 48 56 160 530 325 115 55 42 59 66 49
7 46 50 62 161 574 313 111 57 42 58 61 51
8 46 52 67 199 591 298 109 53 43 56 61 51
9 46 49 62 225 570 276 103 53 47 55 58 50
10 46 48 59 223 560 260 98 54 46 53 60 48
11 47 47 61 223 556 242 99 50 45 54 57 48
12 47 46 69 229 535 225 91 46 47 59 57 48
13 47 48 72 220 517 242 85 47 48 59 59 47
14 45 50 74 218 485 244 83 48 49 57 58 46
15 43 49 82 220 473 227 80 48 50 56 57 46
16 43 50 94 219 482 219 81 46 56 56 59 44
17 44 50 98 232 515 218 78 43 56 59 57 44
18 46 50 97 227 512 227 73 43 69 60 57 45
19 45 51 103 238 483 220 68 47 67 58 57 46
20 45 50 114 264 454 208 63 57 65 63 57 45
21 44 49 102 336 432 207 60 57 72 60 56 45
22 46 49 101 350 409 200 58 52 71 61 55 46
23 46 50 111 395 414 186 60 50 69 62 59 45
24 46 52 118 392 406 195 60 46 62 59 64 44
25 44 55 120 393 388 178 56 46 59 56 58 42
26 44 56 118 403 381 166 54 48 57 61 58 42
27 46 54 120 429 387 158 56 52 55 61 57 39
28 46 56 129 449 380 155 61 49 55 59 56 39
29 47 63 135 484 385 171 56 44 55 58 54 39
30 49   132 503 411 156 53 43 56 59 52 41
31 48   135   397   50 43   61   44