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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
1 996 811 704 1,420 1,320 407 367 118 112 120 343 514
2 959 716 610 1,090 1,330 480 246 119 137 122 365 448
3 739 690 620 948 1,310 467 207 119 176 110 362 802
4 774 618 915 1,270 1,230 470 336 116 143 104 300 824
5 792 578 971 1,090 1,040 404 263 112 124 104 282 560
6 617 607 954 968 896 385 205 122 105 128 272 504
7 527 619 908 873 974 332 210 132 99 143 249 436
8 546 623 790 724 1,090 360 175 148 95 123 312 429
9 504 563 976 834 973 520 162 135 108 138 280 405
10 513 592 1,170 905 806 519 168 146 119 125 223 375
11 627 616 1,400 1,000 1,120 477 183 166 133 117 230 395
12 673 649 1,420 968 1,150 480 156 122 126 152 236 458
13 670 744 1,130 920 1,060 507 143 133 133 188 269 514
14 1,010 896 1,050 1,130 1,080 594 137 168 149 175 357 649
15 969 783 971 1,320 918 466 131 199 129 167 372 633
16 664 767 917 1,200 939 421 149 310 118 148 468 614
17 562 729 887 1,050 1,060 445 158 235 118 197 435 566
18 523 745 994 897 1,110 524 187 174 114 198 640 652
19 565 732 1,870 870 879 476 187 141 109 169 747 595
20 606 674 1,260 973 799 373 163 123 105 165 689 542
21 701 706 1,230 1,060 709 467 152 114 104 219 558 600
22 890 782 1,040 1,020 582 382 180 107 120 278 459 902
23 949 843 933 1,140 684 302 152 112 166 242 459 713
24 997 872 919 1,270 542 321 141 115 171 202 505 713
25 960 889 896 1,360 500 311 131 116 129 175 577 1,010
26 667 958 953 1,240 552 242 126 107 123 181 467 785
27 570 957 1,010 1,120 605 232 113 107 149 172 501 641
28 500 777 1,200 1,060 588 288 110 137 147 188 688 828
29 479 557 1,170 1,010 447 276 129 126 121 178 595 887
30 709   1,240 1,630 386 305 130 169 114 193 511 702
31 966   1,780   356   127 138   297   823