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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 1,310 882 735 502 186 147 169 151 611
2 1,090 833 1,230 1,280 886 703 465 196 134 176 237 586
3 1,050 853 1,280 1,240 807 714 456 211 121 149 288 603
4 1,080 853 1,430 1,290 737 689 439 213 127 133 269 592
5 1,060 887 1,540 1,270 757 628 410 284 138 151 235 557
6 990 850 1,530 1,380 759 600 402 304 129 169 232 568
7 905 799 1,450 1,360 742 542 447 259 113 172 213 643
8 875 798 1,380 1,370 707 516 473 225 91 147 236 663
9 835 846 1,400 1,300 708 547 467 215 87 151 217 617
10 812 1,000 1,470 1,330 736 557 436 203 175 211 216 610
11 778 1,070 1,550 1,390 821 530 463 196 198 210 207 632
12 805 1,050 1,500 1,440 868 574 456 193 180 238 216 700
13 901 988 1,450 1,340 876 692 395 161 156 196 219 681
14 935 980 1,530 1,250 866 894 384 155 129 173 276 634
15 967 1,020 1,600 1,240 831 858 415 164 103 206 309 693
16 972 1,040 1,620 1,210 800 815 456 168 86 231 360 705
17 1,000 1,070 1,510 1,120 769 748 534 161 78 225 406 663
18 1,040 1,150 1,400 1,020 830 702 516 159 95 184 415 590
19 1,020 1,190 1,440 991 824 641 540 178 94 170 479 595
20 937 1,230 1,440 1,060 756 597 487 170 109 177 526 594
21 919 1,240 1,410 1,070 714 550 422 206 113 189 516 618
22 951 1,290 1,350 1,040 742 551 409 231 125 188 477 698
23 1,020 1,390 1,340 1,110 689 473 402 187 125 176 467 731
24 1,030 1,330 1,330 1,160 648 402 369 115 102 199 481 754
25 960 1,340 1,220 1,100 681 393 334 104 127 230 449 769
26 925 1,270 1,160 1,080 782 429 358 104 139 239 499 827
27 956 1,340 1,090 1,010 806 494 288 105 192 225 504 846
28 979 1,410 1,130 963 786 492 246 90 203 190 510 846
29 989 978 1,200 953 773 505 236 92 190 159 579 860
30 1,020   1,240 916 718 500 210 117 174 156 593 939
31 1,000   1,310   831   195 117   147   1,030