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USGS Surface-Water 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 -> 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 1,590 1,240 794 1,060 3,870 8,420 10,700 10,300 9,570 6,160 3,580 2,170
2 2,540 903 835 1,060 3,900 8,560 11,000 10,100 10,400 5,420 4,010 2,820
3 1,780 751 945 1,140 4,180 8,450 11,200 10,100 8,910 5,610 4,170 3,420
4 1,480 722 1,020 1,220 4,290 8,660 11,900 10,200 8,400 5,220 4,920 2,490
5 1,550 717 996 1,220 4,310 8,720 12,100 10,500 7,550 6,300 4,170 2,080
6 1,420 709 930 1,240 4,280 9,040 11,500 10,700 7,540 7,130 3,310 1,790
7 1,220 679 920 1,340 4,470 9,570 11,000 10,500 8,340 7,470 3,070 1,600
8 1,130 634 1,100 1,550 4,750 9,620 10,700 10,700 8,450 5,480 3,510 1,640
9 1,070 661 1,200 1,720 5,220 9,280 11,000 10,700 7,600 4,880 3,970 1,730
10 1,030 660 1,240 1,820 5,920 8,990 12,100 11,100 7,460 5,230 3,250 1,800
11 1,040 718 1,550 1,980 6,290 9,700 13,100 10,000 7,790 5,220 2,780 1,940
12 1,020 687 1,200 2,110 5,990 10,400 12,100 9,700 7,050 5,560 2,910 1,880
13 1,040 676 1,050 2,010 5,790 10,600 11,400 9,930 7,420 7,050 3,850 1,800
14 1,190 655 1,000 1,960 6,110 10,200 11,100 10,500 7,370 5,680 3,980 2,480
15 1,240 650 964 1,910 6,220 9,620 11,600 11,500 6,260 4,990 3,660 2,390
16 1,260 640 919 1,840 6,120 9,590 12,300 13,800 5,740 4,540 3,370 2,390
17 1,180 625 888 1,890 6,360 10,500 11,600 13,100 5,040 4,520 4,750 2,630
18 1,140 609 937 2,090 6,690 11,700 11,200 12,800 5,600 4,350 4,420 2,940
19 1,090 599 994 2,260 7,100 11,400 10,700 11,000 5,990 4,490 4,310 4,020
20 1,030 594 1,050 2,350 7,470 10,900 10,700 11,300 5,560 4,800 3,890 2,780
21 1,010 600 1,130 2,390 7,510 10,800 11,300 12,000 9,470 4,220 4,710 2,230
22 1,020 712 1,220 2,690 7,530 10,000 11,700 10,100 7,810 4,580 6,690 1,900
23 1,030 697 1,280 2,950 7,850 9,580 11,500 9,720 7,160 5,100 6,970 1,860
24 1,100 683 1,220 3,280 8,510 9,280 11,100 8,910 11,900 4,830 4,930 2,230
25 1,210 700 1,050 3,500 8,670 9,260 10,900 8,660 11,500 7,590 4,010 2,000
26 2,620 723 995 3,850 8,430 10,200 11,300 8,900 8,840 9,080 3,510 1,690
27 2,680 766 980 4,100 8,410 10,400 12,500 9,090 8,520 5,870 3,150 1,190
28 1,860 853 1,000 4,210 8,340 9,960 11,600 9,810 9,190 4,660 2,770 1,250
29 1,670 1,020 1,070 3,890 8,470 10,600 11,200 8,880 8,600 4,220 2,500 1,270
30 1,560   1,140 3,860 8,440 10,700 10,200 8,330 7,160 4,110 2,290 1,290
31 1,430   1,090   8,570   10,200 8,840   3,730   1,410