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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 6.92 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 1948-10-01 -> 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 1,230 1,340 1,050 785 416 209 106 46 52 132 593 1,620
2 1,270 1,210 981 745 422 247 105 45 60 129 593 1,840
3 1,390 1,130 1,080 737 434 229 98 44 52 125 550 1,770
4 1,350 1,140 1,090 767 440 215 94 43 53 138 667 1,790
5 1,460 1,040 1,100 763 446 207 90 42 50 136 630 1,600
6 1,590 1,110 1,010 758 421 195 87 42 50 164 684 1,460
7 1,860 1,210 961 727 399 203 82 44 50 151 750 1,330
8 1,620 1,190 917 755 374 191 82 43 47 157 674 1,190
9 1,480 1,210 1,090 748 354 184 86 42 52 194 650 1,270
10 1,400 1,200 1,190 708 340 192 86 39 54 227 724 1,400
11 1,410 1,050 1,150 706 322 186 84 38 61 210 841 1,470
12 1,520 1,090 1,130 703 306 212 81 37 54 188 985 1,510
13 1,510 1,160 1,140 721 304 190 86 39 50 190 1,050 1,620
14 1,540 1,060 1,110 739 301 181 81 38 51 218 1,220 1,450
15 1,600 1,120 1,170 725 291 173 77 39 60 224 1,280 1,480
16 1,490 1,450 1,140 670 300 170 73 41 63 224 1,170 1,520
17 1,420 1,490 1,030 648 280 164 76 39 90 260 1,210 1,480
18 1,510 1,310 1,020 592 275 155 73 37 88 253 1,130 1,440
19 1,590 1,340 1,040 573 270 147 68 38 81 282 1,290 1,320
20 1,510 1,260 950 581 258 138 64 40 79 323 1,460 1,530
21 1,510 1,190 907 526 252 133 62 40 78 358 1,270 1,490
22 1,370 1,250 931 491 252 129 63 50 72 418 1,360 1,380
23 1,380 1,190 945 558 241 126 60 53 98 378 1,350 1,350
24 1,460 1,180 979 582 241 122 58 54 94 349 1,530 1,290
25 1,450 1,150 903 506 228 125 55 58 80 382 1,540 1,240
26 1,290 1,020 860 470 216 118 52 55 83 454 1,370 1,390
27 1,240 988 887 483 211 114 51 50 94 510 1,300 1,550
28 1,370 1,050 891 481 217 112 50 53 117 507 1,310 1,480
29 1,340 1,370 1,030 446 219 115 50 57 138 524 1,280 1,360
30 1,380   1,010 430 212 106 48 65 176 541 1,380 1,450
31 1,330   878   204   46 57   608   1,240