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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 12013500 WILLAPA RIVER NEAR WILLAPA, WA


Pacific County, Washington
Hydrologic Unit Code 17100106
Latitude  46°39'04", Longitude 123°39'05" NAD27
Drainage area 130  square miles
Gage datum 3.57 feet above NGVD29
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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 1948-10-01 -> 2020-09-30)

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 1,230 1,370 936 790 414 210 107 46 54 135 610 1,680
2 1,260 1,240 938 751 423 251 105 45 62 134 607 1,920
3 1,260 1,150 1,070 746 438 225 98 45 55 130 565 1,850
4 1,280 1,160 1,100 761 442 209 94 44 55 144 623 1,880
5 1,430 1,060 1,100 768 447 199 90 43 52 142 564 1,550
6 1,480 1,140 1,030 768 418 190 87 43 52 172 649 1,470
7 1,710 1,240 976 731 390 200 83 44 53 158 718 1,360
8 1,590 1,220 934 749 366 190 82 44 49 165 656 1,220
9 1,470 1,250 1,120 738 349 181 87 42 55 205 642 1,310
10 1,400 1,240 1,220 692 337 182 86 40 57 237 730 1,410
11 1,410 1,090 1,180 696 319 179 85 38 63 208 837 1,440
12 1,390 1,130 1,150 698 302 209 81 38 56 178 938 1,520
13 1,400 1,210 1,150 724 300 185 88 39 52 190 968 1,660
14 1,520 1,100 1,130 749 300 173 82 39 53 223 1,180 1,490
15 1,620 1,160 1,200 739 289 167 78 40 63 231 1,260 1,540
16 1,520 1,500 1,170 682 298 164 74 42 66 232 1,150 1,580
17 1,450 1,540 1,050 662 278 159 77 40 95 267 1,200 1,510
18 1,550 1,350 1,060 598 273 151 74 38 90 260 1,120 1,400
19 1,640 1,390 1,070 567 269 144 69 39 83 292 1,290 1,300
20 1,570 1,310 969 579 258 136 65 41 81 337 1,470 1,520
21 1,560 1,220 907 516 252 131 63 40 81 375 1,290 1,490
22 1,400 1,250 934 482 253 128 64 52 75 439 1,400 1,370
23 1,430 1,180 954 557 242 125 61 54 102 397 1,390 1,340
24 1,510 1,190 989 584 243 121 59 56 93 366 1,590 1,280
25 1,500 1,100 911 506 229 125 55 61 78 388 1,610 1,220
26 1,330 990 871 467 218 119 53 57 80 454 1,420 1,340
27 1,270 979 902 485 213 114 51 52 91 519 1,360 1,460
28 1,390 979 890 483 217 112 50 55 116 511 1,350 1,420
29 1,380 1,110 1,030 447 217 116 50 60 141 516 1,330 1,350
30 1,430   1,020 428 211 106 48 68 184 553 1,410 1,460
31 1,380   888   205   47 59   625   1,230