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USGS Daily Statistics for the Nation

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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 07346045 Black Cypress Bayou at Jefferson, TX


Marion County, Texas
Hydrologic Unit Code 11140306
Latitude  32°46'40", Longitude  94°21'26" NAD27
Drainage area 365  square miles
Contributing drainage area 365  square miles
Gage datum 171.49 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 1968-10-01 -> 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
1 619 476 672 625 641 294 156 67 27 46 135 354
2 546 484 696 616 604 293 188 63 28 41 144 348
3 503 509 733 606 558 280 188 63 35 37 174 361
4 478 556 722 571 532 288 163 81 37 36 196 387
5 452 580 700 550 592 299 147 102 37 47 199 383
6 448 562 680 553 683 314 141 97 39 57 190 371
7 463 535 676 582 678 332 140 84 40 71 172 368
8 463 512 701 587 646 350 132 69 39 95 168 365
9 463 496 783 555 606 373 122 56 38 97 193 357
10 465 489 893 522 566 401 116 44 38 97 193 353
11 465 508 946 521 575 419 108 38 36 87 181 362
12 452 546 963 519 555 400 116 35 34 87 179 391
13 432 610 902 502 489 351 115 35 38 96 185 400
14 433 616 781 489 451 321 107 37 44 125 187 426
15 446 640 707 478 437 303 100 36 51 215 196 455
16 469 676 689 491 432 274 103 32 53 260 203 492
17 487 719 684 525 426 248 97 30 64 222 206 556
18 492 742 669 516 453 234 96 26 75 174 210 616
19 480 692 639 509 491 213 88 26 77 135 202 614
20 468 610 646 481 502 205 76 27 75 116 193 552
21 487 569 671 444 477 197 67 27 79 108 191 484
22 496 586 671 428 481 188 65 28 82 115 199 434
23 494 614 644 437 457 180 62 29 78 126 216 403
24 509 653 602 477 399 173 58 26 74 135 230 402
25 519 717 565 590 351 166 56 25 71 155 249 427
26 522 734 530 584 325 162 51 25 66 158 259 457
27 508 734 506 597 300 176 44 23 62 150 275 525
28 484 709 580 595 274 180 47 21 60 135 306 651
29 482 453 662 623 249 152 74 19 57 124 346 665
30 484   630 651 237 144 73 20 52 121 358 673
31 481   644   266   73 24   128   684