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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 07018100 Big River near Richwoods, MO


Jefferson County, Missouri
Hydrologic Unit Code 07140104
Latitude  38°09'34.6", Longitude  90°42'21.8" NAD83
Drainage area 735  square miles
Gage datum 522.53 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 1948-10-01 -> 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
1 893 993 830 1,450 2,330 887 651 274 257 239 414 805
2 741 934 767 958 1,600 693 492 263 298 271 745 739
3 626 786 889 1,110 1,280 559 372 370 225 203 559 779
4 1,040 664 1,230 1,750 1,570 504 330 412 220 189 382 993
5 1,060 615 1,120 1,740 1,400 586 294 343 267 189 889 697
6 767 698 1,080 1,600 1,280 609 279 279 204 281 699 616
7 552 923 1,130 961 1,390 684 464 206 191 202 363 506
8 509 848 1,110 970 1,440 560 468 198 271 179 342 452
9 490 649 1,170 1,100 1,810 589 336 316 254 303 288 464
10 624 839 1,260 1,110 1,170 552 462 410 265 287 313 561
11 805 822 1,440 1,690 995 616 409 342 247 215 373 794
12 767 705 1,740 1,880 1,140 609 372 346 220 271 423 645
13 860 751 1,340 1,280 1,110 502 591 441 273 232 522 514
14 975 784 1,250 1,340 1,310 530 527 394 339 300 746 578
15 862 668 1,200 1,250 1,220 661 365 502 317 249 923 846
16 644 843 1,100 1,220 1,090 536 357 641 216 219 749 844
17 539 1,050 1,020 927 1,350 687 353 328 295 263 726 807
18 709 1,170 1,550 954 1,790 749 406 222 272 249 708 931
19 790 954 1,980 1,320 1,230 649 366 207 271 216 1,010 653
20 777 934 1,920 1,350 957 709 296 223 219 275 1,100 703
21 738 992 1,590 1,330 771 537 336 223 326 391 609 812
22 718 1,190 1,110 1,710 918 646 450 193 297 359 522 1,070
23 666 1,450 1,010 1,460 907 520 326 199 720 373 551 635
24 664 1,370 1,260 1,460 752 423 311 245 771 300 621 845
25 652 1,260 1,660 1,420 832 470 292 212 447 242 702 1,110
26 724 1,000 1,320 1,480 1,280 539 249 193 417 242 772 810
27 693 1,180 1,110 1,390 1,200 449 259 217 266 233 895 816
28 636 936 1,380 1,570 950 390 360 258 227 272 1,150 1,210
29 699 440 1,490 2,000 691 372 440 244 209 319 651 1,270
30 1,070   1,590 2,360 590 852 398 238 191 582 593 1,170
31 1,220   1,810   829   275 224   627   887