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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 04181049 St Marys River at Walcot Street at Willshire OH


Van Wert County, Ohio
Hydrologic Unit Code 04100004
Latitude  40°44'56", Longitude  84°47'21" NAD83
Drainage area 386  square miles
Gage datum 774.33 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 2016-10-01 -> 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
1 854 388 1,100 1,250 947 592 263 52 48 40 392 321
2 917 325 1,080 1,240 763 360 237 42 43 33 632 396
3 892 346 939 1,270 586 260 193 39 35 31 656 302
4 847 305 1,030 1,510 714 247 181 42 30 32 664 277
5 713 428 950 1,400 889 212 234 44 29 72 617 296
6 594 477 843 1,380 1,080 157 305 37 42 218 629 266
7 455 657 919 1,110 1,120 154 293 37 103 235 455 223
8 312 795 853 889 1,020 141 261 38 99 244 331 180
9 252 891 712 642 984 114 235 37 126 309 288 150
10 380 1,040 821 625 1,110 128 256 44 150 240 260 137
11 629 934 692 769 1,010 113 333 108 142 176 213 134
12 834 900 568 818 934 108 271 60 163 134 161 163
13 993 913 573 741 984 118 262 50 140 95 114 164
14 863 693 547 800 686 162 261 43 103 65 88 178
15 740 606 672 793 481 156 236 38 62 125 83 194
16 572 622 636 684 377 194 189 38 49 216 121 282
17 398 691 537 562 517 210 372 55 38 122 140 270
18 339 792 568 493 824 219 529 88 32 71 262 273
19 424 773 840 475 1,260 270 437 127 29 51 599 300
20 379 921 852 552 1,330 522 373 61 27 42 701 244
21 308 1,030 935 825 1,250 544 387 218 29 42 749 278
22 349 1,090 900 793 1,050 657 408 307 33 50 654 265
23 509 1,240 923 633 772 788 357 195 46 82 475 228
24 776 1,250 858 470 518 659 368 122 70 101 354 214
25 717 1,480 672 312 853 511 365 92 92 287 303 237
26 667 1,400 644 642 1,010 459 276 64 113 378 418 265
27 633 1,240 678 824 910 431 203 53 101 309 389 310
28 777 1,310 722 941 1,010 359 156 49 85 235 302 365
29 731 494 839 995 1,050 249 110 39 75 258 299 462
30 626   1,040 1,020 966 211 58 33 56 348 304 614
31 475   1,210   838   48 40   343   651