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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 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 water year of record in, ft3/s   (Calculation Period 1910-10-01 -> 2020-09-30)

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 83 77 89 227 770 2,170 788 175 107 90 140 113
2 82 75 88 222 773 2,090 745 169 108 91 135 118
3 84 69 87 217 840 1,990 677 164 105 96 134 123
4 83 72 87 217 892 1,890 647 167 107 95 130 131
5 85 79 83 215 1,020 1,810 606 157 109 94 128 120
6 87 81 85 213 1,160 1,710 565 155 110 93 125 110
7 87 83 86 229 1,260 1,670 533 170 110 93 126 108
8 87 88 86 253 1,230 1,630 485 164 109 97 124 107
9 85 99 83 281 1,260 1,560 450 153 112 99 124 109
10 81 109 83 305 1,250 1,470 421 150 111 100 126 110
11 81 117 83 304 1,210 1,320 404 145 109 104 115 106
12 80 117 86 311 1,160 1,290 373 138 107 103 114 102
13 80 118 90 319 1,180 1,440 351 136 105 102 109 101
14 76 119 103 309 1,170 1,430 337 132 104 102 106 99
15 80 120 183 290 1,270 1,280 329 135 103 105 110 98
16 82 123 275 273 1,460 1,220 309 131 102 110 114 103
17 79 123 235 277 1,540 1,320 291 130 100 113 112 103
18 82 117 212 297 1,660 1,320 281 124 100 111 116 104
19 80 109 245 335 1,800 1,530 262 122 100 109 116 106
20 75 108 217 460 1,870 1,320 255 120 99 107 115 101
21 72 104 207 543 1,820 1,240 248 121 98 109 111 98
22 72 103 205 638 1,700 1,220 240 120 99 113 113 96
23 71 102 209 724 1,740 1,140 233 120 98 113 133 94
24 71 100 202 705 1,890 1,080 225 121 96 114 170 94
25 72 98 195 662 1,950 1,030 217 116 95 112 144 94
26 73 94 188 640 2,120 962 208 113 96 114 129 94
27 76 93 190 649 2,190 887 206 111 96 119 125 91
28 77 92 205 686 2,070 835 199 108 97 121 118 91
29 78 75 205 741 2,100 814 191 105 96 119 116 88
30 78   206 786 2,110 825 184 103 97 117 119 85
31 76   220   2,170   178 106   127   86