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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 12302055 Fisher River near Libby MT


Lincoln County, Montana
Hydrologic Unit Code 17010102
Latitude  48°21'20.17", Longitude 115°18'52.74" NAD83
Drainage area 842  square miles
Gage datum 2,134.1 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 1967-10-01 -> 2024-09-30)

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
1 180 273 360 831 1,310 1,130 438 157 110 113 171 262
2 186 267 364 834 1,300 1,090 424 154 109 115 171 252
3 188 255 375 844 1,320 1,070 406 152 109 113 181 258
4 192 246 385 851 1,340 1,040 391 149 108 114 191 274
5 189 246 381 867 1,360 1,010 372 146 107 114 203 303
6 186 244 388 925 1,400 983 356 144 106 114 195 273
7 190 249 399 988 1,420 949 342 141 107 113 218 246
8 205 278 408 1,020 1,410 917 330 139 106 113 208 226
9 215 386 410 1,040 1,380 893 315 136 105 115 208 233
10 234 380 444 1,070 1,370 847 308 133 105 114 207 238
11 228 324 455 1,080 1,360 815 299 130 104 117 215 235
12 212 301 483 1,100 1,340 799 287 128 106 124 245 238
13 209 286 524 1,120 1,350 795 280 127 105 122 231 234
14 217 280 528 1,160 1,360 799 277 126 104 123 217 238
15 250 277 547 1,190 1,390 803 266 125 104 125 211 235
16 360 290 615 1,140 1,430 794 254 125 105 129 209 225
17 372 302 634 1,140 1,460 775 244 123 107 132 205 219
18 334 301 631 1,150 1,440 744 236 122 112 128 201 214
19 298 310 666 1,150 1,390 705 230 119 118 126 196 204
20 281 347 673 1,170 1,330 671 223 117 114 126 191 194
21 269 383 680 1,240 1,280 657 216 117 115 129 204 190
22 255 368 662 1,270 1,280 640 208 117 112 130 201 191
23 243 377 661 1,290 1,280 621 201 117 111 133 208 193
24 234 354 672 1,380 1,270 593 195 116 110 132 239 190
25 231 357 682 1,430 1,270 564 191 116 110 142 297 188
26 224 355 696 1,380 1,270 536 186 117 110 148 282 203
27 219 346 715 1,350 1,260 513 180 114 109 148 241 234
28 216 350 721 1,370 1,230 491 175 112 109 151 222 214
29 213 470 735 1,350 1,180 472 169 111 109 155 247 197
30 221   752 1,320 1,170 461 165 110 110 156 288 190
31 260   800   1,160   161 110   161   187