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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 06090500 Belt Creek near Monarch MT


Cascade County, Montana
Hydrologic Unit Code 10030105
Latitude  47°12'30.94", Longitude 110°55'54.29" NAD83
Drainage area 355  square miles
Gage datum 0,003,980 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 1950-10-01 -> 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 27 26 27 56 297 877 374 106 70 67 54 37
2 26 26 27 54 328 862 351 104 70 68 53 37
3 26 27 26 52 347 1,010 336 102 68 69 53 37
4 26 28 26 53 373 1,160 320 99 68 69 52 37
5 27 29 27 58 413 1,060 301 97 67 68 52 36
6 27 28 28 70 469 988 286 95 65 68 51 35
7 27 28 28 76 476 960 278 93 63 68 51 35
8 27 28 29 75 476 927 265 91 63 67 51 34
9 26 28 29 77 481 905 250 89 64 66 51 34
10 26 28 28 83 503 832 245 87 63 66 50 34
11 25 28 28 89 532 777 231 86 64 65 48 35
12 25 28 28 98 547 755 222 84 70 65 47 34
13 25 28 29 98 582 758 210 82 67 64 47 33
14 26 27 29 100 605 757 200 83 67 63 46 32
15 27 27 30 102 633 732 191 82 67 63 47 32
16 29 28 32 108 694 705 183 80 67 63 46 31
17 28 28 35 112 784 699 175 78 66 62 44 31
18 28 28 35 118 839 667 169 77 70 61 44 30
19 27 28 34 123 830 663 162 76 74 61 44 30
20 27 28 34 137 844 639 155 80 71 60 44 30
21 26 28 34 140 879 598 149 81 70 60 43 31
22 26 27 34 137 983 568 143 77 75 60 42 31
23 26 27 36 151 943 535 137 80 72 59 42 31
24 26 27 38 172 884 506 131 90 71 59 42 30
25 25 28 39 188 860 485 130 87 70 58 42 30
26 25 28 41 203 874 506 129 81 71 57 40 30
27 25 28 44 211 904 496 124 79 71 56 38 29
28 25 27 46 215 875 458 120 76 70 56 38 28
29 25 29 48 227 860 427 116 75 68 55 37 28
30 25   52 258 899 401 113 73 67 54 37 27
31 26   60   901   110 71   54   27