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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 -> 2023-09-30)

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
1 181 272 360 838 1,320 1,160 448 160 111 113 173 265
2 187 266 364 842 1,310 1,120 434 157 111 115 173 255
3 190 253 376 852 1,320 1,100 414 155 111 114 183 261
4 194 244 386 857 1,350 1,060 399 152 110 115 193 277
5 191 245 383 872 1,370 1,030 380 148 108 115 204 307
6 188 243 390 930 1,410 1,000 363 146 108 114 196 272
7 192 248 402 994 1,430 969 350 143 108 114 219 242
8 207 278 411 1,030 1,420 936 337 141 107 114 209 224
9 217 388 413 1,050 1,400 911 322 138 107 115 209 233
10 236 382 448 1,080 1,390 864 315 135 107 115 208 239
11 230 326 459 1,100 1,380 831 305 132 106 118 217 236
12 215 302 487 1,120 1,360 815 293 130 106 125 248 239
13 212 287 529 1,130 1,370 813 286 129 106 123 233 236
14 219 281 533 1,180 1,370 817 283 128 105 124 219 239
15 252 279 553 1,200 1,410 821 271 127 105 126 213 236
16 364 293 622 1,160 1,450 813 260 127 106 130 210 226
17 376 305 640 1,150 1,470 794 249 125 109 133 206 221
18 337 303 637 1,170 1,460 762 241 124 114 129 202 216
19 300 312 673 1,170 1,410 721 235 121 120 127 197 206
20 282 350 677 1,190 1,350 687 227 119 116 127 193 195
21 270 387 682 1,270 1,300 672 220 119 116 130 206 191
22 256 371 662 1,300 1,300 656 212 119 114 131 202 192
23 244 380 661 1,320 1,300 636 206 119 112 134 210 194
24 234 357 671 1,410 1,290 607 199 118 111 133 242 191
25 231 360 683 1,460 1,300 578 195 118 111 143 300 189
26 224 357 699 1,410 1,300 549 189 118 111 149 285 204
27 219 347 719 1,380 1,290 525 184 116 110 150 244 236
28 216 351 725 1,390 1,260 502 178 114 110 152 224 216
29 213 484 740 1,370 1,210 482 173 112 110 157 250 198
30 220   758 1,330 1,200 471 169 112 111 158 291 191
31 259   807   1,190   164 111   162   188