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USGS Daily Statistics for the Nation

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 12332000 Middle Fork Rock Cr nr Philipsburg MT


Granite County, Montana
Hydrologic Unit Code 17010202
Latitude  46°11'04.45", Longitude 113°30'05.65" NAD83
Drainage area 121  square miles
Gage datum 5,444.08 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 1937-10-01 -> 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 34 33 45 158 545 300 92 55 49 47 42
2 33 35 33 46 164 542 288 90 54 50 47 42
3 33 34 33 45 173 550 279 88 53 50 47 43
4 32 33 34 47 185 561 268 86 52 50 46 41
5 33 34 34 48 200 570 255 84 52 50 46 40
6 34 34 34 49 211 578 244 82 52 50 46 39
7 35 34 35 51 228 568 234 80 52 50 46 38
8 34 34 35 52 241 566 224 77 53 49 47 37
9 34 33 36 54 251 548 212 75 52 49 46 38
10 34 32 35 56 261 527 204 73 51 49 46 38
11 33 32 35 59 271 509 197 72 51 49 45 38
12 33 32 36 60 276 495 186 71 52 50 43 39
13 34 33 36 62 294 502 179 69 51 50 44 39
14 34 33 35 64 304 490 172 68 51 50 43 38
15 34 33 35 67 322 478 163 67 51 50 43 38
16 34 34 36 70 346 474 156 66 51 49 43 38
17 35 33 37 72 365 474 151 64 51 49 42 37
18 35 33 36 76 381 464 144 63 50 49 43 37
19 35 33 38 81 399 453 138 63 51 49 43 37
20 35 33 40 86 417 444 132 62 52 49 42 38
21 34 33 40 93 430 428 128 62 52 49 41 38
22 34 33 39 100 437 417 123 61 51 50 41 37
23 34 33 41 108 442 404 118 62 51 49 41 38
24 34 32 42 114 459 399 112 61 50 49 42 36
25 34 33 41 119 474 384 109 60 49 48 42 36
26 33 33 42 122 491 367 106 59 49 48 41 35
27 32 33 42 126 516 353 103 58 49 48 41 36
28 33 33 42 132 528 340 100 57 50 48 40 36
29 33 35 42 140 541 330 98 56 49 47 41 35
30 33   42 150 546 315 97 55 50 47 41 35
31 33   43   547   96 55   47   34