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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 -> 2021-09-30)

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
1 996 825 750 1,410 1,330 407 363 127 116 120 351 514
2 970 723 640 1,090 1,330 479 245 128 140 121 369 448
3 749 693 633 945 1,310 466 207 125 178 110 364 798
4 779 621 919 1,270 1,230 474 333 121 145 104 302 819
5 793 581 971 1,090 1,060 406 260 116 125 104 284 558
6 618 609 952 963 911 386 203 125 107 127 273 502
7 528 620 906 869 980 334 209 134 101 143 250 434
8 546 623 788 725 1,090 360 174 149 97 123 312 427
9 504 563 971 835 973 519 161 137 109 138 280 404
10 513 591 1,170 909 807 518 168 147 119 124 224 374
11 625 614 1,390 1,000 1,120 476 184 167 134 117 231 393
12 670 647 1,420 967 1,140 478 157 123 126 152 237 457
13 667 740 1,180 918 1,050 504 144 134 133 187 269 517
14 1,000 890 1,130 1,120 1,070 588 137 169 149 174 356 650
15 962 779 1,020 1,310 913 462 131 199 129 166 371 633
16 660 763 947 1,190 933 417 149 309 118 148 469 613
17 559 726 910 1,050 1,060 441 157 234 118 196 436 565
18 521 741 1,070 892 1,100 518 188 174 115 197 638 650
19 562 728 1,920 865 882 470 198 141 109 169 743 593
20 602 670 1,280 966 798 370 170 123 106 166 685 540
21 696 701 1,240 1,050 707 461 156 114 104 219 556 597
22 883 777 1,040 1,010 581 378 182 107 120 277 458 895
23 941 839 936 1,140 680 299 154 112 165 241 464 709
24 989 873 919 1,260 540 318 143 115 170 202 507 709
25 955 894 895 1,350 499 307 132 116 129 175 581 1,010
26 673 959 953 1,230 551 240 128 107 123 180 484 780
27 577 957 1,010 1,120 603 230 115 107 149 173 510 637
28 504 792 1,210 1,060 590 284 111 137 147 190 691 821
29 482 557 1,180 1,020 450 273 130 127 121 203 597 880
30 708   1,240 1,650 390 301 132 169 114 229 512 697
31 974   1,770   358   129 138   311   818