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USGS Surface-Water 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 06209500 Rock Creek near Red Lodge MT


Carbon County, Montana
Hydrologic Unit Code 10070006
Latitude  45°05'10.13", Longitude 109°19'45.08" NAD83
Drainage area 108  square miles
Gage datum 6,400 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 1999-10-01 -> 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 33 28 25 27 54 415 527 293 193 102 60 42
2 33 28 25 27 57 428 522 286 187 99 60 41
3 33 28 25 26 60 459 519 283 182 98 59 41
4 32 28 25 27 61 487 526 276 179 94 57 41
5 32 27 25 27 64 546 518 272 176 91 56 40
6 32 28 25 27 69 574 515 266 173 89 56 39
7 32 28 26 28 72 554 499 261 170 88 57 39
8 32 27 25 29 75 520 488 253 166 86 56 39
9 32 27 25 29 81 501 484 248 163 82 55 38
10 32 26 25 29 86 505 479 243 159 80 53 38
11 31 26 25 30 88 476 480 242 155 79 53 38
12 31 27 25 30 94 477 472 242 151 78 51 37
13 31 26 25 31 106 531 467 239 149 77 51 37
14 31 26 25 32 116 498 460 235 150 77 51 37
15 30 25 25 31 118 486 450 231 153 75 50 37
16 29 26 25 31 128 501 437 224 145 75 49 37
17 29 26 25 31 150 506 427 222 140 74 49 37
18 29 26 25 32 166 517 418 222 138 71 48 37
19 30 25 26 32 209 511 408 221 137 70 49 37
20 30 25 26 33 257 494 391 220 135 70 48 36
21 30 25 26 34 263 482 378 216 131 68 47 36
22 29 25 26 36 253 492 369 220 127 66 47 35
23 29 26 26 39 268 497 365 224 124 66 46 35
24 29 25 26 40 271 513 359 222 121 64 45 35
25 29 25 26 41 273 520 352 217 117 63 45 35
26 29 25 26 42 285 515 340 214 114 63 45 35
27 28 25 26 43 303 511 330 213 111 61 44 35
28 28 26 26 44 352 503 323 207 110 60 43 34
29 28 25 26 47 383 527 315 204 106 61 43 34
30 28   26 51 380 537 305 200 106 60 43 34
31 28   26   406   297 196   60   34