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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 4 - 8 years of record in, ft3/s   (Calculation Period 1910-10-01 -> 2018-09-30)

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 92 86 97 315 599 2,010 793 177 113 89 166 118
2 93 82 97 310 670 2,040 763 171 114 90 155 123
3 96 82 95 300 747 1,930 690 165 112 90 146 132
4 96 82 95 295 779 1,780 666 171 115 92 142 148
5 99 85 92 288 910 1,730 626 160 118 91 142 136
6 102 89 93 282 1,060 1,640 576 157 119 90 139 126
7 103 97 96 301 1,080 1,580 538 179 118 91 145 125
8 102 103 94 333 1,030 1,600 485 173 117 92 143 124
9 99 114 92 372 1,050 1,570 449 159 115 90 144 126
10 93 124 96 406 991 1,460 419 155 115 95 148 132
11 91 128 99 399 989 1,320 404 149 115 101 137 125
12 94 121 105 413 1,010 1,300 371 141 114 100 127 119
13 94 120 118 428 997 1,490 348 139 112 97 121 120
14 90 122 141 412 924 1,480 334 135 110 99 121 118
15 88 124 277 379 967 1,340 330 140 110 103 129 117
16 87 129 437 352 1,110 1,250 310 135 108 110 137 123
17 84 133 364 355 1,280 1,240 291 132 106 112 135 121
18 83 122 323 384 1,500 1,240 280 125 106 116 137 123
19 81 113 382 411 1,720 1,180 260 123 104 115 137 119
20 77 110 336 471 1,740 1,170 254 121 103 112 135 117
21 75 105 315 584 1,650 1,180 250 123 102 116 133 116
22 76 105 306 730 1,570 1,210 242 123 105 117 129 113
23 74 105 306 830 1,660 1,140 236 122 103 115 123 111
24 76 106 290 753 1,860 1,090 227 125 101 120 127 111
25 78 105 277 669 1,870 1,040 219 120 100 119 122 109
26 81 104 263 597 1,840 981 210 116 98 115 117 108
27 86 104 268 541 1,880 909 210 114 98 119 115 107
28 88 105 296 502 1,810 865 201 110 99 123 117 105
29 91 78 296 501 1,860 825 192 108 98 123 121 101
30 90   299 509 1,880 809 186 106 98 122 126 93
31 87   324   1,910   179 110   138   94