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USGS Daily Statistics for Montana

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Questions or concerns about USGS streamflow data in Montana and Wyoming can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).

Updated June 11, 2020 - USGS water-resources monitoring activities will be restored at the following sites:
  • 12323600 Silver Bow Creek at Opportunity, Montana (POR: 31 years)
  • 12323750 Silver Bow Creek at Warm Springs, Montana (POR: 35 years)

Updated May 12, 2020 - USGS water-resources monitoring activities were suspended effective June 1, 2020 at the following site:
  • 06088500 Muddy Creek near Vaughn, Montana (POR: 82 years)
USGS monitoring activities at this site was funded by our partner and USGS Cooperative Matching Funds (06088500). Lack of partner funding for this site resulted in suspension of all USGS monitoring activities. Efforts are ongoing to secure funding for future monitoring. Historical data will continue to be available from USGS.

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 06033000 Boulder River near Boulder MT


Jefferson County, Montana
Hydrologic Unit Code 10020006
Latitude  46°12'39.71", Longitude 112°05'29.94" NAD83
Drainage area 381  square miles
Gage datum 4,810 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 1928-10-01 -> 2020-09-30)

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 28 31 32 84 261 608 185 45 27 33 40 34
2 28 31 33 90 262 601 177 43 27 34 39 35
3 28 30 33 91 277 606 172 45 26 34 40 34
4 28 30 34 97 309 605 164 41 25 34 40 33
5 27 31 34 109 329 584 153 41 26 36 40 31
6 27 30 35 113 342 581 147 40 26 37 39 31
7 28 30 35 116 366 566 140 38 25 37 40 30
8 28 31 36 118 374 552 131 36 25 37 41 30
9 28 33 37 122 384 536 121 34 28 37 40 30
10 28 32 39 123 400 515 115 33 29 37 39 30
11 28 32 41 131 409 496 114 33 28 37 38 30
12 27 32 42 138 420 483 109 33 29 38 37 30
13 27 32 43 148 438 479 104 34 29 38 38 30
14 27 32 45 159 451 454 99 33 28 37 38 29
15 28 32 48 166 453 423 90 32 29 38 37 29
16 28 32 53 167 482 431 82 32 30 39 37 29
17 29 31 53 172 526 443 79 31 30 39 35 29
18 28 31 55 185 546 406 81 29 31 39 36 28
19 28 31 56 193 565 384 74 29 31 39 35 28
20 28 31 56 209 583 361 69 29 32 40 34 28
21 27 31 57 216 600 334 65 28 32 40 34 28
22 27 31 59 233 609 318 62 31 34 40 32 28
23 27 31 61 250 608 295 59 31 32 40 33 28
24 27 32 62 251 622 277 56 33 33 40 34 29
25 28 34 63 245 629 267 53 30 33 40 35 28
26 28 35 67 239 628 259 53 29 34 41 35 28
27 28 33 73 240 625 241 55 29 34 40 34 28
28 28 32 72 245 636 230 53 28 33 41 34 28
29 27 33 71 255 635 214 53 28 33 40 34 28
30 28   73 262 628 200 51 28 34 40 34 28
31 29   76   616   48 27   41   28