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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 12166185 NF STILLAGUAMISH R AT C-POST BRIDGE NEAR OSO, WA


Snohomish County, Washington
Hydrologic Unit Code 17110008
Latitude  48°17'00.91", Longitude 121°49'49.88" NAD83
Drainage area 144  square miles
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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 2015-10-01 -> 2024-09-30)

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 1,540 2,430 1,690 1,020 1,090 932 533 231 145 399 1,830 1,300
2 1,580 1,680 1,220 968 1,020 946 514 235 159 404 2,030 1,160
3 1,910 1,460 1,270 911 1,180 937 491 227 154 319 1,320 1,170
4 1,870 1,870 1,150 1,030 1,270 867 453 217 144 274 2,460 1,420
5 1,500 1,800 984 1,030 1,410 881 435 210 141 292 2,220 2,490
6 1,770 1,610 976 1,090 1,340 838 433 206 138 278 1,630 1,470
7 2,570 1,610 872 1,280 1,230 796 432 212 135 357 1,330 1,190
8 1,770 1,530 817 1,490 1,130 813 420 226 141 652 1,140 1,720
9 1,390 1,890 911 1,390 1,130 854 413 212 146 627 923 1,800
10 1,390 1,590 1,150 1,440 1,070 1,020 401 202 167 631 844 1,330
11 1,600 1,250 979 1,260 1,070 857 390 197 175 621 1,030 1,450
12 3,160 1,340 992 1,150 1,080 788 383 196 156 643 1,790 1,340
13 3,000 1,180 1,170 1,110 1,110 806 373 191 179 749 2,340 1,350
14 1,860 1,130 1,440 1,390 1,130 862 348 184 193 1,090 2,380 1,130
15 1,410 1,990 1,660 1,230 1,190 839 333 178 274 816 2,440 950
16 1,280 2,310 1,310 1,110 1,330 950 329 175 233 876 1,700 926
17 1,260 1,450 1,050 1,160 1,250 737 327 175 278 1,090 2,330 1,070
18 2,200 1,190 1,480 1,170 1,190 710 369 173 504 1,140 1,730 1,690
19 1,790 1,050 1,200 1,560 1,120 734 324 169 341 1,140 1,390 1,600
20 1,740 1,100 1,060 1,260 1,030 721 308 165 301 1,380 1,260 2,490
21 1,680 1,070 1,060 1,140 991 697 295 166 236 1,220 1,410 2,460
22 1,750 1,310 1,100 1,070 997 659 283 178 279 1,630 2,160 1,700
23 2,330 1,030 1,120 1,110 1,020 635 277 167 365 790 1,880 1,330
24 2,160 878 1,170 1,130 945 629 269 160 410 618 1,470 1,650
25 1,510 789 1,110 1,100 895 663 272 154 437 600 1,430 1,500
26 1,310 763 987 1,160 906 651 259 150 441 873 1,930 1,660
27 1,350 758 1,110 1,230 1,040 657 257 156 482 966 2,240 1,440
28 1,870 1,330 1,210 1,180 1,240 624 253 153 499 1,310 2,060 1,250
29 1,790 1,010 1,470 1,130 1,090 592 246 147 439 1,160 1,430 1,290
30 1,640   1,320 1,180 1,040 546 239 148 549 944 1,280 1,510
31 1,630   1,090   985   236 147   1,640   1,380