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USGS Daily Statistics for Missouri

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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 07018500 Big River at Byrnesville, MO


Jefferson County, Missouri
Hydrologic Unit Code 07140104
Latitude  38°23'30.2", Longitude  90°38'16.1" NAD83
Drainage area 917  square miles
Gage datum 433.70 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 1921-10-01 -> 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 1,070 1,370 1,050 2,230 2,430 1,060 949 301 290 362 719 817
2 963 1,100 957 1,680 2,550 1,030 915 290 304 374 626 873
3 882 1,080 1,070 1,340 2,020 859 568 280 313 323 693 786
4 901 883 1,180 1,580 1,780 708 413 359 252 266 655 859
5 1,140 769 1,290 1,900 1,660 731 356 393 270 268 405 1,010
6 1,080 786 1,270 1,720 1,630 721 351 381 258 301 452 799
7 770 921 1,370 1,510 1,790 721 453 276 214 298 492 643
8 664 928 1,460 1,300 1,760 830 588 236 233 274 590 535
9 686 876 1,260 1,480 1,630 894 533 243 309 270 525 496
10 666 837 1,290 1,630 1,600 985 417 330 279 329 466 517
11 723 943 1,520 1,700 1,350 1,150 445 393 268 297 546 624
12 859 884 1,920 2,050 1,340 1,010 423 374 253 281 514 794
13 1,040 844 1,940 2,050 1,440 841 467 443 270 277 490 683
14 1,120 949 1,570 1,810 1,460 790 570 431 371 292 634 741
15 1,240 1,100 1,430 1,840 1,650 834 536 430 426 296 804 835
16 1,040 1,090 1,440 1,860 1,610 744 374 465 293 263 949 870
17 719 1,120 1,390 1,750 1,660 739 376 546 295 276 829 916
18 806 1,250 1,410 1,510 1,940 815 400 393 317 310 779 927
19 913 1,370 1,840 1,490 1,920 894 458 262 277 338 752 950
20 998 1,250 2,190 1,650 1,440 812 461 243 258 339 918 755
21 896 1,130 2,060 1,650 1,270 957 395 279 264 349 992 789
22 880 1,250 1,640 1,680 1,080 856 356 256 332 391 616 842
23 872 1,370 1,290 1,820 1,100 826 456 249 475 459 586 898
24 873 1,410 1,280 1,710 1,160 570 481 262 729 373 613 847
25 906 1,450 1,470 1,770 1,220 553 402 257 833 295 711 992
26 980 1,430 1,710 1,760 1,220 704 393 236 605 271 726 912
27 879 1,280 1,570 1,630 1,410 747 327 255 493 271 868 932
28 827 1,260 1,380 1,590 1,370 672 320 255 315 274 873 1,210
29 835 656 1,490 1,940 1,080 629 413 249 287 317 911 1,450
30 1,010   1,870 2,200 885 664 462 266 275 447 692 1,320
31 1,410   2,030   834   391 281   599   1,220