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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
1 932 373 1,080 1,250 947 592 263 52 48 40 392 282
2 926 325 1,050 1,240 763 360 237 42 43 33 632 348
3 893 356 915 1,270 586 260 193 39 35 31 656 266
4 865 317 965 1,510 714 247 181 42 30 32 664 244
5 749 413 897 1,400 889 212 234 44 29 72 617 261
6 608 451 815 1,380 1,080 157 305 37 42 218 552 234
7 436 605 877 1,110 1,120 154 293 37 103 235 400 197
8 291 720 812 889 1,020 141 261 38 99 244 291 159
9 235 802 671 642 984 114 235 37 126 309 254 133
10 345 927 821 625 1,110 128 256 44 150 240 230 122
11 561 834 692 769 1,010 113 333 108 142 176 189 119
12 739 804 568 818 934 108 271 60 163 134 143 145
13 877 813 573 741 984 118 262 50 140 95 101 152
14 762 619 547 800 686 162 261 43 103 65 79 165
15 654 541 672 793 481 156 236 38 62 125 75 179
16 507 558 636 684 377 194 189 38 49 216 108 256
17 354 623 537 562 517 210 372 55 38 122 125 246
18 302 726 568 493 824 219 529 88 32 71 231 251
19 377 712 840 475 1,260 270 437 127 29 51 526 280
20 338 828 852 552 1,330 522 373 61 27 42 615 229
21 276 918 935 825 1,250 544 387 218 29 42 658 254
22 312 965 900 793 1,050 657 408 307 33 50 574 240
23 451 1,100 923 633 772 788 357 195 46 82 417 206
24 684 1,100 858 470 518 659 368 122 70 101 311 193
25 632 1,320 672 312 853 511 365 92 92 287 267 213
26 588 1,290 644 642 1,010 459 276 64 113 378 367 237
27 558 1,210 678 824 910 431 203 53 101 309 343 276
28 684 1,260 722 941 1,010 359 156 49 85 235 266 324
29 644 494 839 995 1,050 249 110 39 75 258 263 435
30 552   1,040 1,020 966 211 58 33 56 348 268 600
31 425   1,210   838   48 40   343   679