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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 06114700 Judith River nr mouth, nr Winifred MT


Fergus County, Montana
Hydrologic Unit Code 10040103
Latitude  47°39'54.57", Longitude 109°39'07.25" NAD83
Drainage area 2,747  square miles
Gage datum 2,502 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 2000-10-01 -> 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
1 243 252 466 571 632 1,270 636 270 316 354 356 257
2 242 258 464 572 633 1,170 617 266 313 351 335 240
3 247 254 475 557 635 1,310 579 272 306 358 284 254
4 250 254 511 537 646 1,530 556 281 302 436 282 252
5 248 253 561 534 665 1,380 541 286 304 411 281 241
6 253 253 602 545 655 1,250 520 280 308 385 259 240
7 252 244 664 569 652 1,270 502 282 312 383 256 236
8 253 249 788 580 700 1,360 500 287 317 387 260 247
9 255 251 752 571 802 1,260 478 292 321 384 261 241
10 257 253 683 589 872 1,400 456 297 323 379 258 235
11 253 253 605 624 980 1,310 438 282 325 376 259 229
12 253 253 566 649 901 1,210 425 282 324 378 259 227
13 253 256 638 635 834 1,180 410 281 326 380 262 228
14 250 253 839 616 774 1,130 396 284 329 382 265 231
15 253 259 775 640 742 1,030 382 287 329 385 264 229
16 248 264 678 631 716 967 371 287 333 386 263 234
17 248 264 632 632 731 936 365 291 338 385 265 234
18 257 276 602 620 771 926 358 290 336 383 265 238
19 256 278 583 606 799 937 342 292 335 383 265 242
20 253 278 552 605 801 918 324 291 338 388 266 238
21 249 272 550 595 895 924 321 294 343 387 268 234
22 252 273 627 604 1,040 913 306 295 355 386 266 234
23 253 320 958 621 1,030 894 304 333 353 386 268 228
24 253 307 1,250 636 1,100 850 303 409 349 385 267 235
25 246 299 977 647 1,190 831 290 394 343 387 270 239
26 243 329 874 648 1,370 789 284 373 338 386 272 242
27 238 379 722 635 1,220 734 287 336 344 385 268 242
28 240 403 648 643 1,240 709 290 318 352 386 260 244
29 242 571 590 657 1,230 669 289 311 351 386 251 242
30 248   568 653 1,210 655 283 312 353 382 257 243
31 250   567   1,210   277 316   370   243