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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 12144500 SNOQUALMIE RIVER NEAR SNOQUALMIE, WA


King County, Washington
Hydrologic Unit Code 17110010
Latitude  47°32'43", Longitude 121°50'28" NAD27
Drainage area 375  square miles
Gage datum 109.05 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 1958-10-01 -> 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 3,010 3,580 2,860 2,970 3,520 4,060 2,420 940 840 1,410 3,060 3,730
2 2,980 2,980 2,470 2,990 3,460 4,240 2,390 924 1,020 1,270 3,170 4,490
3 3,300 3,000 2,490 2,760 3,530 4,170 2,410 914 847 1,320 2,980 4,370
4 3,290 3,020 2,470 2,710 3,500 4,070 2,300 902 783 1,260 4,000 4,360
5 4,140 3,060 2,580 3,000 3,630 4,150 2,210 941 826 1,110 3,500 3,560
6 3,490 3,080 2,670 3,270 3,720 4,000 2,190 869 930 1,080 3,350 3,270
7 4,720 3,410 2,400 3,120 3,670 3,940 2,100 844 849 1,150 3,910 3,120
8 4,330 3,200 2,230 2,960 3,590 3,750 2,040 864 883 1,500 3,540 3,200
9 3,620 3,030 2,620 3,050 3,630 3,590 2,090 796 818 1,530 3,390 3,430
10 3,340 2,840 2,670 2,980 3,590 3,650 2,010 758 853 1,690 3,350 3,450
11 3,110 2,620 2,670 3,010 3,620 3,530 1,930 739 934 1,710 3,350 3,750
12 3,440 2,680 2,800 2,950 3,790 3,520 1,910 725 847 1,660 4,020 3,750
13 3,780 2,830 2,820 2,990 3,900 3,590 2,030 729 715 1,730 4,070 3,770
14 4,010 3,060 2,730 3,210 3,990 3,610 1,850 715 782 1,750 4,100 3,560
15 4,220 3,270 2,890 3,110 4,110 3,530 1,800 705 880 1,830 3,260 4,260
16 4,200 3,460 2,830 2,900 4,210 3,610 1,670 706 919 2,020 3,340 3,620
17 3,990 2,970 2,620 2,980 4,190 3,400 1,660 679 1,000 1,780 3,430 3,340
18 4,460 2,830 2,610 2,910 4,050 3,420 1,590 703 1,100 1,750 3,470 3,410
19 4,020 3,510 2,870 2,890 3,950 3,370 1,480 689 955 1,900 3,570 3,030
20 3,570 3,320 2,660 3,280 4,040 3,200 1,440 709 1,110 2,180 4,140 3,400
21 3,510 3,100 2,480 3,060 3,960 3,160 1,390 707 1,190 2,400 3,740 3,440
22 2,870 3,110 2,500 2,980 4,050 3,090 1,310 702 1,080 2,930 3,580 3,030
23 3,440 2,670 2,620 3,150 4,010 3,010 1,250 703 1,160 2,450 4,310 3,150
24 4,150 2,730 2,680 3,290 3,840 3,030 1,220 797 1,180 2,270 5,140 3,410
25 4,000 2,460 2,630 3,090 3,810 2,980 1,200 826 1,160 2,290 4,840 3,290
26 3,270 2,330 2,600 3,050 3,870 2,810 1,150 858 1,140 2,420 4,260 3,580
27 3,120 2,320 2,490 3,220 3,870 2,670 1,120 799 1,150 2,500 3,540 3,010
28 3,360 2,760 2,510 3,560 3,990 2,680 1,080 821 1,100 2,520 3,880 2,930
29 3,630 3,530 2,590 3,670 4,130 2,680 1,060 777 1,190 2,610 3,840 2,980
30 3,870   2,860 3,750 4,150 2,520 1,030 788 1,610 2,610 3,590 3,380
31 3,770   3,040   3,910   979 757   3,090   2,890