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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 12330000 Boulder Creek at Maxville MT


Granite County, Montana
Hydrologic Unit Code 17010202
Latitude  46°28'17.95", Longitude 113°14'08.77" NAD83
Drainage area 70.5  square miles
Gage datum 4,750 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 1939-10-01 -> 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 19 19 18 21 46 195 108 27 17 21 25 23
2 19 18 18 21 48 194 103 26 17 22 25 23
3 19 18 18 21 52 204 100 26 16 22 25 23
4 19 18 18 21 57 209 96 25 16 22 25 22
5 19 19 18 21 61 211 91 25 16 22 25 22
6 19 19 18 22 65 209 86 25 16 22 25 22
7 19 19 18 22 72 209 82 24 16 22 25 22
8 20 20 18 23 75 205 77 23 16 22 25 21
9 19 19 18 23 78 197 72 22 17 22 25 21
10 19 19 19 23 81 196 71 22 17 22 25 21
11 19 20 18 23 83 194 68 21 17 22 24 21
12 19 19 18 24 86 188 65 21 17 23 24 21
13 19 19 18 25 90 202 62 21 17 23 24 21
14 19 19 18 25 95 190 59 21 17 23 24 21
15 20 18 19 25 101 182 55 20 18 24 24 20
16 19 18 19 26 110 182 52 20 18 24 24 20
17 19 19 19 27 119 188 49 20 18 24 24 20
18 19 18 19 28 126 182 47 19 19 24 24 20
19 19 18 19 28 133 181 46 19 19 24 24 21
20 19 18 19 30 143 172 44 19 19 24 23 21
21 19 18 19 32 151 169 41 19 20 24 23 21
22 18 18 19 35 160 161 39 19 20 24 23 21
23 19 18 19 36 156 151 38 20 19 25 23 21
24 18 18 19 38 164 145 36 19 19 25 24 21
25 18 18 19 38 170 140 34 19 20 25 23 20
26 18 19 19 38 175 132 33 18 20 25 23 20
27 18 18 20 39 180 126 32 18 20 25 23 20
28 18 18 20 41 187 122 31 17 21 25 23 20
29 18 18 20 42 192 121 30 17 21 25 23 20
30 18   20 44 195 115 29 17 21 25 22 20
31 18   20   196   28 17   25   19