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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 06183450 Big Muddy Creek near Antelope MT


Sheridan County, Montana
Hydrologic Unit Code 10060006
Latitude  48°40'22.43", Longitude 104°30'43.51" NAD83
Drainage area 955  square miles
Gage datum 2,000 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 1978-10-01 -> 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 3.4 3 47 151 56 43 23 23 14 6.6 7.8 6.3
2 3.3 3.1 44 139 46 60 31 32 9.7 7.2 8.2 6.2
3 3.3 3.2 40 134 40 64 30 18 5.7 7.5 8.5 6.2
4 3.2 3.9 35 147 35 61 33 9.4 4.6 7.1 8.6 6
5 3.1 4.2 31 120 31 43 38 7 4.2 7.2 8.3 5.9
6 3.1 4.3 28 100 29 34 33 12 4 7.3 7.9 5.7
7 3.1 4.7 28 97 29 30 26 11 4 8.1 7.8 5.5
8 3.1 5.2 33 102 30 29 24 9 3.9 8.1 7.6 5.4
9 3 11 38 107 31 28 25 7.9 4.5 7.8 7.5 5.4
10 3 17 46 119 33 31 29 7.2 4.4 7.6 7.1 5.4
11 3 22 56 128 36 35 37 6.6 7.5 8 7 5.3
12 2.9 26 73 146 37 32 40 6.3 7.7 7.7 7.2 5.2
13 2.9 22 125 182 35 25 34 5.9 6.6 7.4 7.2 5.1
14 2.8 21 148 198 35 25 25 5.9 6.6 7.4 7.2 5
15 2.8 18 160 173 36 30 19 6.2 6.2 7.1 7.3 4.9
16 2.7 17 170 152 34 30 16 5.6 5.3 7.1 7.2 4.8
17 2.7 21 183 147 32 29 14 5.3 4.8 7.2 7.2 4.7
18 2.7 25 211 174 29 35 13 5.7 5.2 7.1 7.1 4.5
19 2.8 25 212 168 27 35 12 4.8 4.7 7.2 7 4.3
20 2.8 32 212 146 26 44 15 4.9 4.7 7.1 6.8 4.2
21 2.8 32 207 131 25 50 12 5.1 4.9 7 6.8 4.1
22 2.7 30 211 102 24 39 43 4.8 5.2 7 6.7 4
23 2.8 29 232 76 26 46 47 4.7 5.2 6.9 6.7 3.9
24 2.9 28 233 66 32 44 23 4.6 5 7.4 6.8 3.9
25 2.9 26 225 62 32 30 17 4.3 5.4 7.5 6.6 3.8
26 2.8 25 216 59 27 23 15 4.1 5.6 7.6 6.6 3.7
27 2.8 30 210 55 26 20 13 4.5 5.8 7.7 6.6 3.6
28 2.8 40 188 53 26 18 13 4.3 6.3 7.7 6.6 3.6
29 2.9 24 175 61 31 20 15 4 5.7 7.9 6.5 3.6
30 2.9   185 61 33 20 17 4.1 6 7.8 6.4 3.5
31 2.9   162   35   14 5.8   7.6   3.5