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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 1,340 942 782 417 211 107 46 55 136 617 1,710
2 1,250 1,210 944 747 425 253 105 45 63 135 614 1,950
3 1,250 1,140 1,080 744 437 225 98 45 55 131 571 1,880
4 1,270 1,160 1,100 761 443 209 94 44 56 145 631 1,910
5 1,420 1,050 1,110 770 449 199 90 43 52 143 571 1,570
6 1,430 1,110 1,030 771 420 190 87 43 52 174 657 1,490
7 1,610 1,210 983 735 393 200 83 45 53 160 727 1,380
8 1,540 1,190 941 753 368 190 82 44 50 166 665 1,230
9 1,450 1,240 1,130 744 351 181 87 42 55 207 651 1,330
10 1,380 1,240 1,240 697 339 182 86 40 57 239 740 1,420
11 1,380 1,080 1,190 701 322 179 85 38 63 210 848 1,460
12 1,360 1,130 1,160 704 304 209 81 38 57 180 951 1,540
13 1,380 1,210 1,170 731 301 185 88 39 52 192 981 1,670
14 1,520 1,100 1,140 756 300 173 82 39 53 225 1,200 1,500
15 1,620 1,160 1,210 746 290 167 78 40 62 234 1,270 1,550
16 1,520 1,510 1,180 689 299 164 75 42 65 234 1,170 1,590
17 1,450 1,550 1,070 669 278 159 78 41 95 267 1,220 1,530
18 1,550 1,360 1,070 604 273 151 73 38 86 255 1,140 1,420
19 1,640 1,390 1,080 572 269 144 69 39 82 278 1,310 1,310
20 1,570 1,310 980 585 258 136 65 41 81 330 1,490 1,440
21 1,560 1,230 918 522 252 131 63 41 81 372 1,300 1,420
22 1,400 1,270 945 487 252 128 64 52 75 430 1,410 1,350
23 1,380 1,190 966 563 242 125 61 55 102 393 1,410 1,330
24 1,440 1,200 999 590 243 121 59 57 93 364 1,620 1,280
25 1,460 1,100 920 510 229 125 56 61 78 389 1,630 1,230
26 1,310 997 880 471 218 119 53 57 80 457 1,440 1,340
27 1,250 986 912 489 213 114 52 52 92 524 1,380 1,470
28 1,350 987 898 487 218 112 50 56 117 515 1,370 1,440
29 1,350 1,140 1,030 451 218 116 51 60 142 521 1,350 1,360
30 1,410   1,010 432 212 106 48 69 185 559 1,430 1,480
31 1,360   877   205   47 60   632   1,240