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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 07374525 Mississippi River at Belle Chasse, LA


Plaquemines Parish, Louisiana
Hydrologic Unit Code 08090100
Latitude  29°51'25", Longitude  89°58'40" NAD27
Drainage area 1,130,000  square miles
Contributing drainage area 1,110,000  square miles
Gage datum -6.58 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 2008-10-01 -> 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
1 545,000 606,000 668,000 821,000 768,000 790,000 565,000 476,000 341,000 318,000 321,000 379,000
2 549,000 618,000 679,000 840,000 759,000 785,000 561,000 470,000 337,000 316,000 324,000 376,000
3 558,000 591,000 686,000 830,000 757,000 775,000 551,000 467,000 329,000 307,000 321,000 368,000
4 576,000 623,000 691,000 835,000 774,000 770,000 550,000 463,000 322,000 286,000 328,000 371,000
5 569,000 627,000 703,000 837,000 776,000 764,000 550,000 458,000 329,000 303,000 332,000 373,000
6 579,000 625,000 709,000 824,000 770,000 759,000 550,000 451,000 322,000 301,000 342,000 386,000
7 599,000 628,000 708,000 816,000 768,000 753,000 551,000 446,000 313,000 307,000 348,000 394,000
8 602,000 633,000 703,000 819,000 773,000 745,000 554,000 441,000 308,000 306,000 348,000 393,000
9 614,000 636,000 708,000 814,000 780,000 742,000 554,000 433,000 304,000 300,000 355,000 402,000
10 616,000 634,000 710,000 808,000 789,000 709,000 558,000 428,000 303,000 306,000 365,000 412,000
11 624,000 634,000 727,000 806,000 791,000 731,000 560,000 426,000 302,000 304,000 365,000 407,000
12 635,000 645,000 749,000 805,000 802,000 728,000 556,000 426,000 308,000 308,000 377,000 421,000
13 638,000 647,000 761,000 796,000 775,000 721,000 559,000 424,000 303,000 308,000 377,000 422,000
14 637,000 645,000 770,000 816,000 812,000 712,000 557,000 416,000 298,000 308,000 377,000 432,000
15 636,000 659,000 781,000 813,000 816,000 700,000 559,000 409,000 302,000 311,000 373,000 442,000
16 631,000 667,000 787,000 808,000 816,000 691,000 550,000 401,000 301,000 317,000 372,000 452,000
17 633,000 668,000 793,000 797,000 818,000 681,000 545,000 396,000 297,000 319,000 380,000 466,000
18 623,000 661,000 797,000 799,000 822,000 673,000 549,000 386,000 297,000 323,000 375,000 472,000
19 587,000 659,000 810,000 823,000 819,000 663,000 540,000 384,000 295,000 340,000 371,000 469,000
20 622,000 646,000 829,000 809,000 818,000 650,000 539,000 377,000 293,000 327,000 372,000 481,000
21 621,000 646,000 841,000 796,000 823,000 642,000 534,000 379,000 298,000 326,000 364,000 482,000
22 627,000 648,000 830,000 795,000 827,000 636,000 532,000 376,000 303,000 328,000 365,000 486,000
23 629,000 656,000 826,000 800,000 831,000 624,000 528,000 361,000 303,000 329,000 359,000 495,000
24 621,000 662,000 836,000 797,000 827,000 617,000 528,000 365,000 306,000 322,000 359,000 498,000
25 619,000 652,000 845,000 799,000 822,000 603,000 522,000 363,000 305,000 326,000 357,000 502,000
26 624,000 661,000 828,000 798,000 813,000 592,000 517,000 358,000 304,000 328,000 367,000 500,000
27 631,000 657,000 816,000 790,000 804,000 584,000 508,000 356,000 301,000 327,000 369,000 503,000
28 630,000 659,000 827,000 789,000 805,000 582,000 504,000 344,000 300,000 335,000 362,000 510,000
29 628,000 715,000 831,000 778,000 801,000 573,000 504,000 341,000 306,000 333,000 359,000 516,000
30 626,000   817,000 771,000 801,000 569,000 495,000 359,000 305,000 321,000 368,000 519,000
31 614,000   818,000   796,000   487,000 349,000   323,000   527,000