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USGS Daily Statistics for Washington

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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 -> 2019-09-30)

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 1,340 950 792 421 213 108 46 55 136 617 1,710
2 1,250 1,210 953 756 429 256 106 45 63 135 614 1,950
3 1,250 1,140 1,090 753 442 228 99 45 55 131 571 1,880
4 1,270 1,160 1,120 771 448 211 95 44 56 145 631 1,910
5 1,420 1,050 1,120 779 453 201 91 43 52 143 571 1,570
6 1,430 1,110 1,040 779 424 192 88 43 52 174 657 1,490
7 1,610 1,210 994 739 397 202 83 45 53 160 727 1,380
8 1,540 1,190 951 758 372 191 83 44 50 166 665 1,230
9 1,450 1,240 1,150 748 355 182 88 42 55 207 651 1,330
10 1,380 1,240 1,250 701 342 183 87 40 57 239 740 1,420
11 1,380 1,080 1,200 699 325 181 85 38 63 210 848 1,460
12 1,360 1,130 1,170 701 307 211 82 38 57 180 951 1,540
13 1,380 1,210 1,180 730 304 187 88 39 52 192 981 1,670
14 1,520 1,100 1,150 756 303 174 82 39 53 225 1,200 1,500
15 1,620 1,160 1,230 747 293 168 78 40 62 234 1,270 1,550
16 1,520 1,510 1,200 691 302 166 75 42 65 234 1,170 1,590
17 1,450 1,550 1,080 671 281 161 78 41 95 267 1,220 1,530
18 1,550 1,360 1,080 606 275 153 73 38 86 255 1,140 1,420
19 1,640 1,400 1,090 574 271 146 69 39 82 278 1,310 1,310
20 1,570 1,320 991 588 260 137 65 41 81 330 1,490 1,440
21 1,560 1,240 928 524 254 132 63 41 81 372 1,300 1,420
22 1,400 1,270 956 489 254 129 64 52 75 430 1,410 1,350
23 1,380 1,200 977 567 244 126 61 55 102 393 1,410 1,330
24 1,440 1,210 1,010 595 245 122 59 57 93 364 1,620 1,280
25 1,460 1,110 931 514 231 126 56 61 78 389 1,630 1,230
26 1,310 1,000 890 475 220 120 53 57 80 457 1,440 1,340
27 1,250 994 923 493 215 115 52 52 92 524 1,380 1,470
28 1,350 995 909 491 220 112 50 56 117 515 1,370 1,440
29 1,350 1,140 1,040 455 220 116 51 60 142 521 1,350 1,360
30 1,410   1,020 436 214 107 48 69 185 559 1,430 1,480
31 1,360   888   207   47 60   632   1,240