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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 15015595 UNUK R BL BLUE R NR WRANGELL AK


Ketchikan Gateway Borough, Alaska
Hydrologic Unit Code 19010105
Latitude  56°14'26", Longitude 130°52'49" NAD27
Drainage area 745  square miles
Gage datum 150 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 2002-10-01 -> 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 1,600 1,190 891 1,090 3,960 9,730 11,800 10,800 9,920 6,850 4,620 2,320
2 1,930 996 895 1,080 3,980 9,960 11,700 10,300 10,100 6,990 6,300 2,740
3 1,580 921 941 1,130 4,270 10,300 11,800 10,100 9,770 6,510 4,740 2,910
4 1,430 928 969 1,170 4,320 10,200 12,400 10,300 8,580 5,710 4,590 2,460
5 1,440 1,030 938 1,170 4,230 9,810 13,000 11,000 8,390 6,250 4,030 2,660
6 1,270 1,060 890 1,200 4,430 9,600 12,600 11,000 7,750 7,300 3,390 2,660
7 1,170 1,140 871 1,300 4,700 9,810 12,200 11,100 7,950 7,280 3,140 2,370
8 1,110 1,090 968 1,450 4,740 9,890 11,800 10,800 8,000 6,270 3,340 2,110
9 1,080 1,530 1,020 1,570 5,020 9,760 11,800 10,700 7,200 6,620 3,650 2,020
10 1,060 1,670 1,040 1,640 5,610 9,730 12,300 11,000 7,100 6,820 3,160 1,940
11 1,120 1,270 1,240 1,730 5,900 10,300 13,000 10,200 7,890 5,420 2,780 1,900
12 1,110 1,150 1,010 1,800 5,730 10,600 12,100 10,000 7,680 5,420 2,860 1,840
13 1,120 1,120 926 1,720 5,890 10,500 11,300 11,000 7,640 6,470 3,410 1,860
14 1,180 1,020 894 1,680 6,410 10,000 11,200 11,300 7,300 5,930 3,430 2,130
15 1,320 954 882 1,680 6,510 9,690 11,500 12,600 6,650 5,290 3,190 2,040
16 1,430 922 873 1,710 6,580 10,000 12,000 13,200 5,870 4,660 3,010 1,990
17 1,310 961 875 1,820 6,640 10,900 11,600 12,400 5,370 4,820 4,430 2,060
18 1,260 962 910 2,060 6,740 11,900 11,300 12,000 5,890 5,830 4,300 2,200
19 1,380 1,030 944 2,240 7,170 11,800 11,000 10,500 5,910 6,420 3,800 2,730
20 1,230 935 965 2,300 7,490 11,300 10,800 10,600 5,530 5,280 3,400 2,100
21 1,170 907 1,010 2,340 7,600 11,300 11,400 11,000 9,780 4,700 3,960 1,830
22 1,230 884 1,160 2,540 7,600 11,000 11,500 9,560 9,120 4,620 5,000 1,630
23 1,340 856 1,310 2,710 7,880 10,300 11,300 9,230 7,870 4,790 5,090 1,590
24 1,330 805 1,250 2,990 8,250 10,200 11,000 8,690 12,800 4,450 3,960 1,780
25 1,340 802 1,110 3,190 8,310 10,800 11,000 8,690 11,300 6,010 3,520 1,690
26 2,020 812 1,050 3,450 8,170 11,700 11,200 8,920 8,980 7,150 3,250 1,600
27 2,060 844 1,050 3,640 8,130 12,200 12,000 9,090 8,880 5,480 3,070 1,310
28 1,660 919 1,070 3,730 8,090 12,200 11,300 10,400 9,010 4,380 2,840 1,290
29 1,540 1,020 1,090 3,770 8,310 12,800 11,000 10,100 8,150 3,940 2,590 1,370
30 1,450   1,140 4,010 8,370 12,300 10,400 9,470 7,090 3,790 2,380 1,610
31 1,340   1,110   8,960   10,700 9,840   3,560   1,670