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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 12027500 CHEHALIS RIVER NEAR GRAND MOUND, WA


Thurston County, Washington
Hydrologic Unit Code 17100103
Latitude  46°46'34", Longitude 123°02'04" NAD27
Drainage area 895  square miles
Gage datum 0 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 1928-10-01 -> 2021-09-30)

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 5,800 6,000 4,720 4,420 1,970 1,030 562 257 272 590 2,040 5,390
2 5,920 5,990 4,740 4,080 1,950 1,040 542 253 283 536 2,110 5,960
3 6,110 5,720 4,680 3,790 1,890 1,050 523 251 286 520 2,250 6,700
4 6,120 5,280 4,670 3,480 1,920 997 507 251 277 542 2,340 7,000
5 6,380 5,230 4,690 3,460 1,940 958 483 247 305 559 2,340 6,430
6 6,820 5,320 4,750 3,550 1,950 919 465 244 307 543 2,430 5,990
7 6,890 5,730 4,590 3,460 1,850 932 448 240 312 569 2,580 5,790
8 7,050 6,010 4,330 3,350 1,710 1,000 432 244 290 543 2,700 5,400
9 6,900 6,120 4,390 3,320 1,590 996 432 244 283 660 2,670 5,150
10 6,800 5,760 4,970 3,250 1,520 962 433 237 302 745 2,580 5,630
11 6,480 5,570 5,080 3,130 1,480 947 427 230 307 779 2,660 6,100
12 6,380 5,420 4,970 3,160 1,430 907 412 225 305 748 2,920 6,230
13 6,490 5,500 5,090 3,280 1,370 877 400 224 294 715 3,360 6,250
14 6,610 5,480 4,940 3,330 1,350 813 401 224 291 719 3,890 6,260
15 6,710 5,330 4,960 3,460 1,340 796 389 223 306 711 4,160 6,210
16 6,790 5,670 5,110 3,320 1,350 822 382 225 332 760 4,180 6,170
17 6,810 6,060 4,780 3,100 1,380 821 378 225 361 773 4,240 6,220
18 6,690 6,310 4,460 2,950 1,370 811 366 222 381 843 4,370 6,310
19 6,660 6,110 4,330 2,730 1,320 794 350 219 390 910 4,520 6,320
20 6,540 5,990 4,260 2,720 1,300 773 338 221 396 1,050 4,850 6,440
21 6,430 5,830 4,220 2,640 1,270 750 328 222 399 1,160 4,960 6,930
22 6,290 5,840 4,180 2,430 1,220 731 318 221 383 1,210 4,930 6,990
23 6,290 5,970 4,190 2,390 1,210 710 310 233 376 1,340 5,070 6,830
24 6,580 5,610 4,280 2,540 1,170 731 301 249 409 1,290 5,420 6,410
25 6,850 5,490 4,330 2,520 1,140 691 294 256 395 1,350 6,210 5,990
26 6,810 5,380 4,100 2,300 1,090 692 287 273 372 1,440 6,260 5,730
27 6,320 5,180 4,130 2,160 1,050 645 281 273 381 1,530 5,800 6,060
28 5,990 5,090 4,220 2,170 1,030 618 278 267 386 1,570 5,450 6,530
29 5,920 6,480 4,310 2,090 1,040 611 274 265 505 1,700 5,200 6,590
30 5,950   4,650 1,980 1,020 596 268 267 545 1,650 5,000 6,680
31 6,050   4,680   992   261 279   1,760   6,390