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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 06040800 Madison River ab powerplant nr McAllister MT


Madison County, Montana
Hydrologic Unit Code 10020007
Latitude  45°29'11.74", Longitude 111°38'01.89" NAD83
Drainage area 2,150.2  square miles
Gage datum 4,690 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 2001-10-01 -> 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
1 290 291 307 347 645 2,040 1,160 448 424 321 384 347
2 286 298 327 381 693 2,100 1,030 454 440 308 402 343
3 282 292 310 408 651 2,080 958 397 401 310 415 342
4 283 284 333 405 659 2,080 1,030 389 370 311 443 360
5 299 291 322 393 656 2,190 1,040 373 373 330 481 363
6 315 311 304 390 629 2,260 922 350 366 343 509 354
7 308 319 310 382 699 2,340 848 355 357 324 476 355
8 309 318 302 375 793 2,250 807 334 363 323 450 361
9 307 317 303 403 783 2,070 760 299 376 323 443 370
10 321 317 316 410 738 1,990 759 305 388 314 448 350
11 330 304 317 394 771 1,920 732 314 379 304 491 342
12 303 282 316 391 829 1,810 697 307 371 317 496 352
13 284 270 312 407 875 1,820 682 329 371 345 480 352
14 293 279 321 399 889 1,750 643 327 382 343 475 353
15 292 292 348 417 946 1,630 693 298 403 312 451 370
16 325 309 364 462 1,050 1,590 665 269 390 303 394 377
17 301 313 349 502 1,110 1,650 655 279 405 297 394 364
18 316 297 331 509 1,150 1,630 639 283 404 299 397 360
19 333 270 321 487 1,250 1,670 568 282 399 299 388 372
20 378 260 317 477 1,390 1,590 614 294 408 334 363 390
21 402 276 308 519 1,500 1,480 643 281 429 396 368 378
22 410 276 308 555 1,490 1,480 647 281 436 427 359 353
23 351 305 307 575 1,460 1,450 607 281 364 413 360 346
24 320 311 316 590 1,490 1,460 566 270 360 466 369 332
25 291 309 300 598 1,540 1,410 547 267 348 506 367 309
26 298 278 313 627 1,530 1,330 494 270 337 479 366 297
27 327 277 328 623 1,550 1,300 531 262 337 439 362 314
28 339 299 327 593 1,590 1,190 540 285 350 429 368 315
29 353 408 321 573 1,650 1,210 501 277 348 378 372 317
30 343   311 603 1,830 1,180 481 286 326 369 356 305
31 313   310   1,880   468 351   368   300