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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 1,350 1,050 783 416 209 106 46 52 132 593 1,620
2 1,280 1,220 983 744 422 247 105 45 60 129 593 1,840
3 1,390 1,140 1,080 737 434 229 98 44 52 125 550 1,770
4 1,360 1,150 1,100 769 440 215 94 43 53 138 667 1,790
5 1,460 1,050 1,100 767 446 207 90 42 50 136 630 1,600
6 1,600 1,120 1,020 761 421 195 87 42 50 164 684 1,460
7 1,870 1,220 969 727 399 203 82 44 50 151 750 1,330
8 1,630 1,200 924 741 374 191 82 43 47 157 674 1,190
9 1,490 1,220 1,100 733 354 184 86 42 52 194 650 1,270
10 1,410 1,210 1,200 699 340 192 86 39 54 227 724 1,400
11 1,420 1,060 1,160 701 322 186 84 38 61 210 841 1,470
12 1,530 1,100 1,140 701 306 212 81 37 54 188 985 1,510
13 1,530 1,170 1,150 721 304 190 86 39 50 190 1,050 1,620
14 1,560 1,070 1,120 740 301 181 81 38 51 218 1,220 1,450
15 1,620 1,130 1,180 727 291 173 77 39 60 224 1,280 1,480
16 1,510 1,460 1,150 672 300 170 73 41 63 224 1,170 1,530
17 1,430 1,500 1,030 651 280 164 76 39 90 260 1,210 1,480
18 1,520 1,320 1,030 595 275 155 73 37 88 253 1,130 1,370
19 1,610 1,340 1,040 576 270 147 68 38 81 282 1,290 1,300
20 1,530 1,270 953 585 258 138 64 40 79 323 1,460 1,530
21 1,520 1,190 895 526 252 133 62 40 78 358 1,270 1,490
22 1,380 1,250 924 491 252 129 63 50 72 418 1,360 1,380
23 1,400 1,180 939 558 241 126 60 53 98 378 1,350 1,340
24 1,470 1,170 971 582 241 122 58 54 94 349 1,530 1,280
25 1,470 1,080 897 506 228 125 55 58 80 382 1,540 1,230
26 1,310 981 856 470 216 118 52 55 83 454 1,370 1,350
27 1,250 974 885 483 211 114 51 50 94 510 1,300 1,520
28 1,380 1,050 880 481 217 112 50 53 117 507 1,310 1,460
29 1,350 1,370 1,020 446 219 115 50 57 138 524 1,280 1,350
30 1,390   1,000 430 212 106 48 65 176 541 1,380 1,450
31 1,340   873   204   46 57   608   1,230