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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 07021000 Castor River at Zalma, MO


Bollinger County, Missouri
Hydrologic Unit Code 07140107
Latitude  37°08'47.9", Longitude  90°04'31.8" NAD83
Drainage area 423  square miles
Gage datum 350.49 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 1919-10-01 -> 2020-09-30)

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
1 995 814 705 1,420 1,330 407 367 118 112 120 343 514
2 960 718 609 1,100 1,340 480 246 119 137 122 365 448
3 739 692 612 951 1,320 467 207 119 176 110 362 796
4 776 615 907 1,280 1,230 470 336 116 143 104 300 822
5 795 568 969 1,100 1,050 404 263 112 124 104 282 558
6 618 588 955 972 900 385 205 122 105 128 272 503
7 528 603 910 877 979 332 210 132 99 143 249 435
8 547 614 791 726 1,100 360 175 148 95 123 312 428
9 505 557 980 832 975 520 162 135 108 138 280 405
10 494 575 1,180 908 808 519 168 146 119 125 223 375
11 511 592 1,410 1,010 1,130 477 183 166 133 117 230 395
12 476 632 1,420 973 1,150 480 156 122 126 152 236 459
13 590 711 1,130 925 1,060 507 143 133 133 188 269 516
14 989 875 1,050 1,140 1,080 594 137 168 149 175 357 653
15 958 772 951 1,330 917 466 131 199 129 167 372 637
16 655 760 904 1,200 938 421 149 310 118 148 468 618
17 556 725 879 1,060 1,060 445 158 235 118 197 435 569
18 515 743 989 903 1,100 524 187 174 114 198 640 656
19 550 731 1,870 876 879 476 187 141 109 169 747 599
20 596 673 1,230 980 799 373 163 123 105 165 689 545
21 696 707 1,190 1,070 709 467 152 114 104 219 558 604
22 890 784 1,030 1,030 582 382 180 107 120 278 459 908
23 950 846 926 1,150 684 302 152 112 166 242 459 718
24 997 874 913 1,280 542 321 141 115 171 202 505 718
25 958 887 885 1,370 500 311 131 116 129 175 577 1,020
26 663 958 947 1,240 552 242 126 107 123 181 467 791
27 566 959 1,010 1,130 605 232 113 107 149 172 501 645
28 497 778 1,210 1,060 588 288 110 137 147 188 688 834
29 476 552 1,170 1,010 447 276 129 126 121 178 595 889
30 709   1,240 1,630 386 305 130 169 114 193 511 692
31 970   1,780   356   127 138   297   816