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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 06078500 North Fork Sun River near Augusta MT


Teton County, Montana
Hydrologic Unit Code 10030104
Latitude  47°38'23.5", Longitude 112°51'33.6" NAD83
Drainage area 259  square miles
Gage datum 4,783.84 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 1910-10-01 -> 2025-09-30)

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 71 65 66 138 627 1,620 812 205 131 104 119 95
2 69 66 66 150 645 1,620 770 201 130 106 113 98
3 68 67 66 163 679 1,670 741 194 127 107 112 100
4 68 69 65 171 759 1,670 713 189 126 107 113 97
5 69 72 64 168 832 1,630 694 184 129 109 119 92
6 71 69 65 171 924 1,580 659 181 126 109 122 88
7 71 67 65 179 986 1,550 615 178 123 106 118 89
8 71 67 65 188 967 1,850 576 174 120 106 112 86
9 69 69 64 193 989 1,730 547 170 121 106 106 87
10 69 71 64 191 1,010 1,590 523 170 119 106 107 87
11 68 71 66 188 1,070 1,520 496 165 118 107 102 86
12 67 69 66 194 1,120 1,490 471 159 117 108 98 86
13 66 70 67 202 1,140 1,490 462 156 115 110 100 83
14 65 69 69 213 1,130 1,440 442 152 114 110 99 80
15 66 68 82 224 1,160 1,340 416 152 116 117 100 79
16 66 67 99 234 1,230 1,310 400 156 116 116 96 78
17 65 67 90 245 1,300 1,300 377 153 114 115 91 77
18 65 67 87 268 1,370 1,250 356 149 116 112 92 77
19 64 66 89 295 1,450 1,230 336 146 115 116 93 77
20 63 66 93 341 1,490 1,210 320 145 113 116 93 76
21 62 65 94 372 1,540 1,200 307 149 114 115 91 76
22 62 64 94 397 1,510 1,160 290 143 115 116 93 76
23 62 64 93 419 1,480 1,100 279 142 113 116 99 77
24 62 64 94 435 1,470 1,080 266 143 111 115 105 77
25 62 66 95 442 1,520 1,020 258 143 113 122 97 78
26 63 67 99 455 1,550 953 250 139 118 125 95 76
27 63 66 107 480 1,560 908 241 135 115 121 94 75
28 64 67 118 517 1,550 864 233 135 114 119 96 76
29 64 66 119 553 1,630 841 223 136 112 118 96 76
30 64   119 596 1,670 842 216 137 105 119 95 75
31 65   124   1,620   210 134   120   74