Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Daily Statistics for Montana

Click to hide state-specific text
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 12355000 Flathead River at Flathead British Columbia


000, British Columbia
Hydrologic Unit Code --
Latitude  49°00'04.47", Longitude 114°28'32.39" NAD83
Drainage area 429  square miles
Gage datum 3,968.16 feet above NGVD29
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 1928-10-01 -> 2021-09-30)

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
1 199 180 177 302 1,950 4,090 1,710 507 298 329 362 267
2 194 182 174 310 2,020 4,090 1,620 494 300 317 356 267
3 194 180 173 323 2,090 4,160 1,550 483 296 303 351 270
4 197 179 175 341 2,220 4,130 1,480 466 290 296 366 274
5 197 181 179 362 2,360 4,050 1,410 452 287 294 377 265
6 197 182 181 393 2,510 3,970 1,350 440 290 288 389 252
7 197 187 183 417 2,610 3,900 1,290 427 288 286 441 245
8 197 190 185 449 2,690 3,740 1,240 418 285 286 447 239
9 195 186 187 485 2,810 3,570 1,170 419 284 287 390 248
10 197 180 189 529 2,900 3,380 1,120 409 279 290 391 256
11 192 177 191 556 3,000 3,260 1,070 401 277 287 442 255
12 191 175 195 587 3,130 3,190 1,030 393 274 287 401 256
13 190 173 200 616 3,330 3,200 1,010 383 273 288 450 252
14 188 172 200 663 3,400 3,190 999 375 273 293 424 247
15 186 172 213 702 3,420 3,080 948 367 273 311 387 245
16 190 173 231 757 3,560 3,050 893 359 274 326 360 239
17 197 172 225 810 3,680 3,090 854 354 276 332 344 236
18 196 171 225 918 3,830 3,000 823 344 284 330 330 233
19 196 171 230 975 3,890 2,820 792 336 287 341 322 228
20 201 172 230 1,050 3,990 2,760 758 332 288 361 323 227
21 202 173 230 1,140 4,080 2,660 726 331 289 351 321 223
22 197 174 230 1,260 4,180 2,500 696 324 290 342 310 221
23 197 176 231 1,350 4,240 2,390 669 324 286 338 309 214
24 196 174 234 1,450 4,290 2,290 647 326 284 331 318 212
25 196 176 248 1,530 4,310 2,190 627 323 285 347 310 218
26 191 189 256 1,570 4,380 2,100 611 320 293 366 303 223
27 186 185 257 1,580 4,360 2,020 590 315 289 364 304 231
28 181 181 268 1,680 4,230 1,900 572 307 284 391 303 232
29 179 173 281 1,800 4,160 1,810 557 302 283 386 291 220
30 179   286 1,880 4,160 1,780 544 300 297 362 283 210
31 181   297   4,160   528 300   360   205