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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 06185110 Big Muddy Creek nr mouth nr Culbertson MT


Roosevelt County, Montana
Hydrologic Unit Code 10060006
Latitude  48°09'52.13", Longitude 104°37'46.27" NAD83
Drainage area 2,717  square miles
Gage datum 1,896.5 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 1981-10-01 -> 2021-09-30)

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 6 3.5 44 136 165 83 60 24 14 19 14 13
2 6.2 4.5 48 134 155 86 56 20 12 21 14 13
3 6.1 4.4 73 140 144 90 52 20 12 22 14 13
4 6.1 4.4 68 136 136 102 49 20 12 23 13 13
5 6.1 4.2 60 135 129 110 50 20 18 24 13 13
6 6 4 57 140 117 113 50 21 21 23 14 13
7 5.7 3.9 61 134 97 110 49 30 21 24 13 13
8 5.7 3.8 67 132 86 110 48 27 22 25 13 14
9 5.4 3.7 76 127 78 107 47 23 22 27 14 14
10 5 4 85 125 75 96 48 21 22 27 14 13
11 4.9 4.2 83 125 73 84 50 19 22 26 14 13
12 4.7 4.3 81 129 69 76 52 19 24 23 13 13
13 4.4 4.3 80 140 66 70 48 19 27 21 13 13
14 3.9 4 83 175 65 64 45 19 28 19 13 12
15 3.4 3.8 85 199 64 61 46 21 29 18 13 12
16 3.2 3.9 78 219 63 56 49 23 30 18 13 12
17 3.2 4.3 94 220 63 53 49 23 30 18 13 11
18 3.2 4.7 111 207 64 51 50 22 29 18 13 10
19 3.1 4.9 134 201 67 49 49 21 28 17 13 9.6
20 3.2 4.8 154 195 70 47 43 21 26 17 13 9
21 3.2 5.7 189 189 70 47 40 19 26 17 13 9
22 3.2 7.6 187 179 66 53 39 17 22 17 14 8.8
23 3.2 10 162 168 65 66 35 15 18 17 14 8.7
24 3.2 14 161 172 63 71 34 15 16 17 14 8.5
25 3.2 19 158 174 62 69 31 14 15 16 14 7.9
26 3.1 27 158 168 59 67 28 14 15 14 13 7.6
27 3.2 32 153 162 57 62 27 15 15 12 13 6.4
28 3.2 32 147 160 58 58 25 16 15 11 13 6.5
29 3.2 31 142 163 56 56 23 18 15 10 13 6.5
30 3.2   142 167 58 61 22 18 18 15 13 6.2
31 3.3   139   71   22 15   14   5.9