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USGS Daily Statistics for Indiana

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NOTE: USGS Indiana historic, recent, and real-time data will continue to be provided in Eastern Standard Time.


NOTE: During winter months, stage and discharge may be affected by ice. Click here for more information.

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 04181500 ST. MARYS RIVER AT DECATUR, IN


Adams County, Indiana
Hydrologic Unit Code 04100004
Latitude  40°50'53", Longitude  84°56'16" NAD27
Drainage area 621  square miles
Gage datum 760.12 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 1946-10-01 -> 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
1 927 708 1,030 1,010 717 627 416 154 122 121 119 583
2 848 715 1,050 933 687 644 394 188 135 110 222 564
3 818 724 1,100 915 622 678 404 204 121 90 265 578
4 922 709 1,200 982 582 636 401 206 137 97 231 561
5 940 762 1,320 1,020 629 587 408 281 130 124 213 540
6 890 735 1,280 1,110 606 534 396 259 117 145 219 548
7 804 704 1,140 1,150 539 474 457 212 95 140 191 591
8 743 743 1,120 1,100 511 459 464 191 79 128 208 600
9 711 763 1,190 1,030 496 490 455 189 87 147 193 561
10 694 894 1,240 1,050 522 514 449 166 177 184 179 570
11 690 920 1,280 1,080 580 484 449 165 202 180 189 575
12 760 883 1,260 1,080 604 540 402 143 185 196 204 631
13 856 854 1,280 1,010 618 630 363 125 143 175 219 611
14 868 829 1,310 1,000 616 786 384 120 113 161 275 568
15 854 897 1,330 987 608 782 416 142 91 182 310 626
16 823 900 1,270 956 589 755 457 134 75 185 377 637
17 787 908 1,180 893 559 695 459 134 77 184 419 580
18 823 979 1,110 818 595 639 441 152 97 170 397 545
19 800 1,020 1,140 823 600 555 493 171 90 163 460 574
20 736 998 1,120 915 566 507 448 145 108 165 495 562
21 797 1,020 1,150 942 550 463 364 182 121 187 469 579
22 849 1,060 1,170 913 576 420 370 194 133 167 428 632
23 897 1,130 1,120 976 558 367 376 150 117 165 438 645
24 912 1,120 1,060 1,010 535 334 353 97 95 189 440 645
25 815 1,110 943 964 621 362 329 99 136 191 409 662
26 767 1,020 909 996 742 381 324 100 128 165 454 696
27 838 1,050 856 917 694 412 254 93 184 141 458 689
28 856 1,080 929 944 685 419 223 80 170 133 489 705
29 860 682 1,020 872 727 421 174 109 145 117 557 746
30 871   1,030 788 678 413 144 131 132 102 558 800
31 839   1,020   690   170 130   94   853