Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.
  • How are we doing? We want to hear from you. Take our quick survey to tell us what you think.

USGS Daily Statistics for the Nation

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
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 -> 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
1 990 820 747 1,430 1,320 406 362 126 117 120 349 504
2 998 719 638 1,090 1,320 477 246 127 141 123 366 440
3 799 691 678 944 1,300 463 208 137 177 112 361 779
4 816 619 1,020 1,250 1,230 470 332 191 145 106 300 800
5 802 580 1,030 1,090 1,060 404 261 233 136 106 282 546
6 622 606 960 968 942 385 205 188 124 128 273 496
7 530 615 937 868 1,040 333 209 156 108 143 250 435
8 545 622 817 724 1,120 358 175 163 101 124 309 426
9 511 625 975 828 987 512 176 146 112 138 278 402
10 519 663 1,160 897 818 512 191 153 121 125 223 372
11 624 643 1,370 991 1,110 470 193 171 135 117 229 391
12 685 659 1,390 968 1,130 471 162 128 127 151 235 452
13 700 742 1,160 918 1,040 496 148 141 133 185 266 510
14 1,000 883 1,110 1,140 1,080 576 140 269 149 173 350 642
15 955 773 1,000 1,310 918 454 133 409 129 166 365 629
16 663 781 932 1,180 960 410 150 370 119 149 459 610
17 563 764 900 1,040 1,070 433 158 256 119 196 428 561
18 525 882 1,060 893 1,100 507 189 189 115 197 623 674
19 589 814 1,880 870 877 461 198 151 110 169 725 666
20 622 696 1,260 963 791 363 170 129 106 166 669 578
21 699 710 1,220 1,080 700 452 156 119 105 217 543 603
22 876 784 1,030 1,040 581 371 181 111 120 273 448 886
23 933 852 941 1,140 673 294 153 116 164 238 454 701
24 997 878 936 1,250 536 312 143 118 169 200 496 699
25 970 899 1,020 1,340 498 302 132 118 128 180 568 987
26 686 956 1,060 1,240 565 280 129 109 123 193 475 766
27 591 950 1,040 1,120 631 300 116 109 148 177 500 628
28 543 789 1,210 1,050 603 304 112 138 146 192 675 806
29 512 541 1,170 1,020 456 278 130 127 120 206 584 862
30 719   1,230 1,620 393 306 132 168 114 232 502 685
31 969   1,780   359   129 138   312   802