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USGS Daily Statistics for Texas

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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 08067650 W Fk San Jacinto Rv bl Lk Conroe nr Conroe, TX


Montgomery County, Texas
Hydrologic Unit Code 12040101
Latitude  30°20'31", Longitude  95°32'34" NAD27
Drainage area 451  square miles
Contributing drainage area 451  square miles
Gage datum 116.06 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 1973-10-01 -> 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
1 492 513 611 588 678 651 207 85 236 175 411 187
2 493 461 551 507 758 709 184 132 246 156 327 133
3 447 536 402 459 785 669 157 79 154 127 350 111
4 433 573 375 407 715 696 175 48 113 177 341 139
5 461 572 398 429 603 598 122 34 121 218 271 156
6 468 553 340 509 486 572 105 33 113 207 236 211
7 503 541 339 651 470 586 135 34 108 178 239 264
8 481 573 353 746 520 501 141 36 106 140 297 509
9 378 575 410 705 572 505 94 37 101 126 330 561
10 305 529 597 503 478 546 78 40 88 125 339 638
11 310 619 688 406 518 552 85 43 87 110 340 627
12 338 630 704 290 720 485 65 43 91 77 401 568
13 382 585 638 224 740 439 91 38 138 77 980 583
14 406 570 602 274 767 403 102 38 188 83 1,480 528
15 539 502 511 348 982 389 139 49 187 116 1,030 543
16 550 524 485 346 1,080 347 219 50 203 159 593 716
17 590 525 418 375 971 325 190 100 192 1,450 434 799
18 762 464 512 691 895 266 144 172 204 2,230 382 640
19 880 372 422 827 986 339 120 100 304 1,430 325 625
20 851 365 419 904 919 428 110 64 372 819 280 635
21 795 477 421 927 858 376 94 62 330 559 266 569
22 778 540 352 868 858 329 86 78 331 520 269 575
23 868 571 443 641 836 249 85 70 329 549 228 634
24 1,130 624 579 572 710 189 61 88 342 455 313 585
25 666 641 534 489 833 205 51 100 224 331 375 500
26 607 532 405 472 933 236 32 122 221 267 349 423
27 623 536 413 486 1,220 247 61 679 190 212 345 577
28 600 539 477 442 1,790 273 90 3,520 230 253 365 770
29 556 473 714 413 1,290 260 86 2,130 202 326 328 659
30 570   805 475 875 240 84 632 243 459 253 509
31 536   705   741   58 335   404   503