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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 06119200 South Fork Musselshell River at Martinsdale, MT


Meagher County, Montana
Hydrologic Unit Code 10040201
Latitude  46°27'44.35", Longitude 110°19'06.61" NAD83
Drainage area 274  square miles
Gage datum 4,783 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 2018-10-01 -> 2022-09-30)

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 15 15 17 27 136 296 109 11 7.9 23 31 14
2 15 16 16 25 94 279 98 11 6.9 23 26 14
3 15 16 16 29 49 257 83 14 6.3 23 27 14
4 15 18 15 32 47 235 75 16 5.9 22 27 14
5 15 19 15 25 27 214 70 13 5.6 22 28 13
6 15 20 15 8.8 20 205 62 12 5 22 25 13
7 15 19 17 6.5 20 237 57 10 6.2 21 19 12
8 15 19 18 2.3 39 210 55 8.7 9.5 22 19 13
9 15 18 19 1.7 21 192 48 8.8 8.6 23 18 12
10 16 19 21 7.9 13 158 47 8.8 6.8 21 18 12
11 18 20 19 16 8.9 130 43 7.2 5.9 22 15 11
12 19 22 15 4.8 33 107 39 6.3 5.1 26 19 11
13 20 22 13 6.5 113 98 36 6.3 5.1 29 19 11
14 20 22 13 16 124 88 34 7.2 5.6 29 18 11
15 19 22 14 19 152 82 33 7.7 5.3 28 18 12
16 19 22 14 11 183 83 29 7.1 5.4 27 18 14
17 18 22 15 11 197 86 27 6.9 5.7 27 18 15
18 17 22 16 13 223 97 29 8.4 5.3 27 22 16
19 15 24 17 19 277 91 26 9.7 5.1 26 23 16
20 12 25 17 23 340 87 23 13 5.6 29 21 16
21 11 26 11 28 386 93 21 11 22 29 16 14
22 10 24 11 30 337 81 19 8 22 29 13 13
23 9.9 23 11 24 287 70 15 11 18 29 10 12
24 9.9 22 12 12 270 66 16 8.4 17 29 10 11
25 9.9 21 13 7.8 234 68 16 8.5 18 26 10 11
26 9.9 20 14 9.8 226 61 16 8.5 19 30 10 10
27 9.8 19 14 4.2 244 53 15 8.6 20 31 11 10
28 9.8 19 14 6.3 249 58 12 12 25 30 11 11
29 9.9 35 18 11 261 122 9.8 10 26 33 13 12
30 10   24 55 265 123 12 9 24 33 13 14
31 15   30   293   13 8.6   32   14