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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 04182000 ST. MARYS RIVER NEAR FORT WAYNE, IN


Allen County, Indiana
Hydrologic Unit Code 04100004
Latitude  40°59'16", Longitude  85°06'43" NAD27
Drainage area 762  square miles
Gage datum 748.41 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 1930-10-01 -> 2025-09-30)

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 1,130 882 1,290 1,310 889 741 506 182 147 169 151 611
2 1,090 833 1,230 1,270 893 709 469 190 134 176 237 586
3 1,050 853 1,280 1,200 813 720 460 206 121 149 288 603
4 1,080 853 1,440 1,240 739 695 443 210 127 133 269 592
5 1,060 887 1,550 1,230 742 634 414 284 138 151 235 557
6 990 850 1,530 1,330 727 604 406 304 129 169 232 568
7 905 799 1,450 1,310 703 546 451 259 113 172 213 643
8 875 798 1,390 1,310 674 519 478 225 91 147 236 663
9 835 846 1,410 1,250 688 550 472 215 87 151 217 617
10 812 1,000 1,490 1,300 720 560 440 203 175 211 216 610
11 778 1,070 1,560 1,370 808 534 467 196 198 210 207 632
12 805 1,050 1,510 1,440 861 579 461 193 180 238 216 700
13 901 988 1,470 1,350 876 698 399 161 156 196 219 681
14 935 980 1,550 1,260 867 900 387 155 129 173 276 634
15 967 1,020 1,610 1,250 826 862 419 164 103 206 309 693
16 972 1,040 1,620 1,220 796 819 460 168 86 231 360 705
17 1,000 1,070 1,500 1,130 767 752 539 161 78 225 406 663
18 1,040 1,150 1,400 1,020 830 706 521 159 95 184 415 590
19 1,020 1,190 1,440 1,000 827 640 546 178 94 170 479 595
20 937 1,230 1,450 1,070 760 592 491 170 109 177 526 594
21 919 1,240 1,420 1,080 718 549 426 206 113 189 516 618
22 951 1,290 1,360 1,050 745 553 413 231 125 188 477 698
23 1,020 1,390 1,350 1,110 691 475 406 187 125 176 467 731
24 1,030 1,330 1,340 1,170 650 404 372 115 102 199 481 754
25 960 1,340 1,230 1,110 684 395 337 104 127 230 449 769
26 925 1,270 1,170 1,080 787 432 361 104 139 239 499 827
27 956 1,340 1,100 1,020 812 497 290 105 192 225 504 846
28 979 1,410 1,150 969 792 495 248 90 203 190 510 846
29 989 978 1,210 959 779 509 237 92 190 159 579 860
30 1,020   1,250 923 724 505 209 117 174 156 593 939
31 1,000   1,310   838   194 117   147   1,030