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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 12344000 Bitterroot River near Darby MT


Ravalli County, Montana
Hydrologic Unit Code 17010205
Latitude  45°58'19.38", Longitude 114°08'28.44" NAD83
Drainage area 1,050  square miles
Gage datum 3,942.14 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 1936-10-01 -> 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
1 243 266 283 554 1,640 3,840 1,760 512 388 329 334 298
2 242 266 283 578 1,680 3,790 1,680 502 384 332 336 309
3 245 261 289 585 1,770 3,860 1,620 490 379 333 333 311
4 242 259 290 598 1,880 3,860 1,560 480 373 331 333 299
5 248 258 291 624 1,970 3,850 1,490 471 369 327 331 280
6 253 254 300 658 2,060 3,860 1,410 463 376 326 327 276
7 257 262 300 693 2,160 3,800 1,350 457 379 327 358 273
8 261 274 303 726 2,270 3,680 1,280 446 381 325 364 268
9 257 282 307 751 2,360 3,540 1,210 437 378 329 333 266
10 253 281 324 770 2,450 3,410 1,170 433 368 331 327 275
11 251 277 327 787 2,550 3,280 1,120 431 362 332 320 280
12 247 274 328 813 2,600 3,200 1,060 432 357 343 313 281
13 251 271 338 843 2,680 3,240 1,010 431 361 346 321 287
14 254 269 343 891 2,790 3,150 962 430 355 346 310 287
15 255 266 349 939 2,900 3,100 906 423 361 344 302 286
16 256 269 362 957 3,050 3,050 860 420 360 350 303 282
17 260 270 371 988 3,210 3,000 820 413 358 349 302 273
18 256 269 375 1,040 3,330 2,900 786 409 359 340 305 267
19 254 270 383 1,100 3,450 2,810 750 407 357 332 303 264
20 250 277 386 1,170 3,570 2,750 721 410 355 329 302 263
21 245 280 395 1,230 3,580 2,670 688 407 353 328 298 267
22 247 283 411 1,290 3,550 2,590 660 405 348 339 291 268
23 249 277 432 1,330 3,590 2,480 633 415 344 357 297 274
24 250 278 439 1,390 3,690 2,400 606 415 338 347 318 268
25 247 279 444 1,410 3,730 2,300 590 406 332 349 314 259
26 241 285 460 1,410 3,820 2,190 568 402 330 352 308 260
27 243 285 467 1,440 3,910 2,100 552 396 325 343 300 261
28 241 284 472 1,470 3,950 1,990 546 390 324 343 293 257
29 241 311 483 1,530 4,000 1,920 535 388 322 342 287 256
30 243   501 1,600 4,020 1,860 527 385 323 332 295 256
31 255   526   3,930   526 385   334   252