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USGS Daily Statistics for Wyoming

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Questions or concerns about USGS data and data products in Wyoming and Montana 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 13010065 SNAKE RIVER AB JACKSON LAKE AT FLAGG RANCH WY


Teton County, Wyoming
Hydrologic Unit Code 17040101
Latitude  44°05'56", Longitude 110°40'03" NAD83
Drainage area 486  square miles
Contributing drainage area 474  square miles
Gage datum 6,801.61 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 1983-10-01 -> 2025-09-30)

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
1 341 334 337 392 1,360 4,190 1,560 486 336 334 354 347
2 348 332 337 400 1,420 4,210 1,460 474 336 332 348 350
3 349 333 337 405 1,530 4,300 1,420 464 331 342 350 349
4 350 332 340 417 1,670 4,280 1,350 459 330 343 347 350
5 348 332 339 428 1,800 4,460 1,290 456 330 341 349 347
6 343 330 339 436 1,980 4,360 1,210 450 329 341 350 347
7 344 330 338 444 2,130 4,130 1,140 439 333 343 356 348
8 347 330 340 454 2,200 3,840 1,080 430 330 341 360 347
9 348 333 341 460 2,290 3,580 1,020 423 327 335 358 346
10 350 336 344 467 2,340 3,420 967 413 322 333 352 349
11 350 334 346 483 2,390 3,230 936 408 322 338 348 349
12 346 334 344 506 2,490 3,150 896 402 324 339 348 350
13 345 334 341 538 2,680 3,160 855 397 324 334 349 351
14 345 335 342 585 2,870 3,120 807 392 321 338 349 352
15 345 335 343 609 3,070 3,050 772 384 322 342 341 351
16 345 333 346 619 3,360 3,010 741 382 323 351 341 347
17 344 333 348 664 3,560 2,880 721 380 322 347 345 345
18 344 336 347 685 3,640 2,760 692 382 328 341 345 343
19 346 338 351 703 3,690 2,620 665 379 331 342 360 340
20 345 338 355 740 3,810 2,500 643 371 331 355 360 341
21 340 340 361 820 3,910 2,410 619 368 332 339 349 338
22 339 338 365 917 3,830 2,330 603 371 339 340 346 337
23 339 338 368 1,010 3,830 2,210 595 366 332 339 349 335
24 338 339 367 1,020 3,790 2,150 573 361 326 342 352 333
25 339 338 367 1,030 3,710 2,080 559 360 322 348 349 331
26 337 336 368 1,060 3,770 2,000 552 357 317 349 345 329
27 335 337 369 1,130 3,820 1,900 536 350 316 344 346 328
28 334 337 369 1,190 4,010 1,810 523 348 315 345 345 334
29 333 335 368 1,240 4,190 1,730 516 340 314 370 342 337
30 331   370 1,290 4,180 1,650 506 335 321 361 341 339
31 331   379   4,200   491 337   371   340