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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 06079000 South Fork Sun River near Augusta MT


Lewis And Clark County, Montana
Hydrologic Unit Code 10030104
Latitude  47°37'42.99", Longitude 112°51'56.74" NAD83
Drainage area 251  square miles
Gage datum 4,730 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 5 - 9 years of record in, ft3/s   (Calculation Period 1910-10-01 -> 2019-09-30)

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 85 83 103 272 678 2,090 795 179 112 88 148 124
2 87 80 102 269 723 2,060 763 173 112 89 138 127
3 90 79 100 261 813 1,940 690 167 110 94 130 133
4 90 79 101 256 899 1,830 662 172 113 93 127 144
5 93 82 98 251 1,070 1,800 623 162 115 91 126 132
6 95 84 97 245 1,230 1,690 580 159 116 90 123 119
7 96 91 98 260 1,360 1,610 545 178 115 90 128 118
8 95 100 97 288 1,330 1,640 494 171 113 90 126 116
9 93 116 94 320 1,370 1,610 457 159 112 89 126 117
10 88 131 94 348 1,340 1,530 428 154 112 94 129 123
11 86 140 93 345 1,300 1,350 413 149 112 98 120 116
12 88 140 98 359 1,200 1,290 379 142 110 97 112 111
13 89 141 104 371 1,160 1,440 355 139 109 96 108 111
14 85 142 123 358 1,120 1,440 341 136 107 97 107 109
15 84 145 233 333 1,230 1,310 335 140 107 100 114 108
16 83 148 361 314 1,420 1,270 315 135 106 110 120 113
17 81 150 302 319 1,530 1,390 296 132 104 112 118 112
18 80 141 270 344 1,680 1,410 285 126 103 110 120 114
19 79 133 317 369 1,820 1,660 266 124 102 108 120 110
20 76 129 279 426 1,800 1,420 259 123 101 105 119 108
21 74 123 263 534 1,750 1,320 253 124 100 109 116 107
22 74 120 256 667 1,720 1,310 245 123 102 114 118 105
23 73 119 257 751 1,840 1,220 238 122 101 113 146 103
24 75 118 245 684 2,050 1,150 229 125 99 115 199 102
25 76 116 234 625 2,110 1,090 221 120 97 113 163 101
26 78 111 223 586 2,140 1,020 213 116 96 111 143 100
27 83 109 227 600 2,130 938 213 115 96 114 137 99
28 85 108 250 662 2,020 884 205 111 96 117 134 97
29 87 78 250 734 2,060 838 197 108 96 117 133 93
30 86   252 694 2,030 815 189 106 96 116 133 87
31 83   271   2,010   182 109   129   87