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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 06026420 Big Hole R bl Hamilton Ditch nr Twin Bridges, MT


Madison County, Montana
Hydrologic Unit Code 10020004
Latitude  45°33'00.08", Longitude 112°21'38.43" NAD83
Drainage area 2,790.7  square miles
Gage datum 4,630 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 2006-10-01 -> 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       1,020 1,770 3,830 2,110 308 147 267 490  
2       1,400 1,750 3,890 1,940 296 145 279 499  
3       1,250 1,750 3,920 1,790 283 144 289 496  
4       1,070 1,750 3,950 1,690 272 149 293 511  
5       1,000 1,800 3,960 1,600 261 147 296 527  
6       995 1,900 4,070 1,490 256 152 314    
7       983 2,040 4,130 1,360 251 156 317    
8       933 2,210 4,270 1,280 252 156 316    
9       927 2,270 4,210 1,210 253 156 320    
10       1,050 2,300 4,080 1,120 244 165 320    
11       1,310 2,310 3,960 1,060 235 172 315    
12       1,500 2,290 3,750 1,000 223 168 317    
13       1,560 2,350 3,610 970 209 163 327    
14       1,410 2,470 3,540 947 201 161 339    
15       1,260 2,550 3,410 946 194 161 351    
16       1,160 2,710 3,350 896 187 164 355    
17       1,150 2,930 3,430 846 183 169 362    
18       1,320 3,140 3,470 777 174 175 368    
19       1,500 3,270 3,560 700 165 180 375    
20       1,480 3,410 3,480 627 160 184 380    
21       1,450 3,550 3,240 572 158 193 385    
22       1,530 3,520 3,030 530 161 203 384    
23       1,680 3,600 2,900 504 165 209 385    
24       1,750 3,670 2,810 478 174 218 390    
25       1,800 3,850 2,690 446 173 228 388    
26       1,950 3,920 2,540 418 169 235 390    
27       2,170 3,930 2,400 393 162 238 396    
28       2,260 3,950 2,280 377 157 239 403    
29       2,220 3,990 2,250 363 154 241 387    
30       2,150 3,970 2,230 344 149 256 386    
31         3,870   325 149   392