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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 14222500 EAST FORK LEWIS RIVER NEAR HEISSON, WA


Clark County, Washington
Hydrologic Unit Code 17080002
Latitude  45°50'13", Longitude 122°27'54" NAD27
Drainage area 125  square miles
Gage datum 356.8 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 1929-10-01 -> 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 1,330 1,350 1,160 1,200 744 424 227 88 87 158 686 1,380
2 1,350 1,260 1,160 1,090 759 444 217 90 91 157 730 1,610
3 1,330 1,170 1,130 1,020 753 430 213 93 85 165 724 1,510
4 1,390 1,140 1,080 973 732 410 197 87 104 170 773 1,510
5 1,460 1,100 1,140 1,020 758 406 183 85 102 176 751 1,440
6 1,490 1,280 1,120 1,000 757 409 174 82 94 170 829 1,530
7 1,610 1,390 1,080 1,020 726 444 165 83 87 182 943 1,420
8 1,480 1,360 1,020 1,040 692 443 163 82 80 196 901 1,280
9 1,430 1,210 1,130 1,040 655 443 162 77 79 251 820 1,360
10 1,340 1,210 1,160 1,020 630 431 158 75 90 255 772 1,420
11 1,330 1,130 1,090 1,020 613 419 154 73 90 297 871 1,560
12 1,400 1,160 1,150 1,000 584 396 145 73 84 275 971 1,510
13 1,510 1,190 1,150 1,040 566 368 149 72 82 267 1,010 1,500
14 1,550 1,180 1,130 1,020 584 348 149 72 87 268 1,000 1,360
15 1,540 1,190 1,210 957 577 350 140 71 102 286 1,010 1,330
16 1,570 1,300 1,160 935 587 356 136 71 102 265 1,100 1,360
17 1,480 1,350 1,130 931 592 345 137 70 111 255 1,160 1,330
18 1,540 1,290 1,160 895 582 339 129 70 138 278 1,190 1,330
19 1,520 1,380 1,110 861 567 337 122 70 132 325 1,240 1,350
20 1,520 1,290 1,070 907 565 333 116 70 128 357 1,300 1,520
21 1,410 1,280 1,050 839 548 321 112 69 125 373 1,150 1,620
22 1,350 1,280 1,110 795 537 302 111 71 114 494 1,250 1,660
23 1,450 1,330 1,110 816 525 286 107 78 120 507 1,290 1,550
24 1,500 1,260 1,130 837 513 273 105 81 122 459 1,430 1,390
25 1,520 1,170 1,110 804 493 282 101 90 117 472 1,590 1,300
26 1,330 1,180 1,060 762 481 270 102 91 123 457 1,440 1,360
27 1,300 1,170 1,090 780 480 259 99 92 129 500 1,340 1,510
28 1,330 1,210 1,120 772 480 251 95 89 140 598 1,340 1,540
29 1,330 1,460 1,180 738 465 254 93 85 150 595 1,280 1,490
30 1,300   1,220 749 457 238 91 88 162 595 1,300 1,470
31 1,320   1,290   425   88 89   670   1,340