Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Daily Statistics for Idaho

Click to hide state-specific text

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 12322000 KOOTENAI RIVER AT PORTHILL ID


Boundary County, Idaho
Hydrologic Unit Code 17010104
Latitude  48°59'47", Longitude 116°30'27" NAD83
Drainage area 13,700  square miles
Gage datum 1,700 feet above NGVD29
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 2013-10-01 -> 2020-09-30)

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 8,320 6,770 8,670 19,300 26,200 30,300 13,900 9,920 9,010 7,330 8,840 17,700
2 7,960 6,400 8,730 19,500 26,700 30,500 13,800 9,690 8,460 6,330 9,040 19,200
3 8,710 6,410 8,670 19,400 27,300 31,400 13,500 9,520 8,260 5,850 7,950 21,800
4 9,000 6,470 8,580 19,500 27,900 31,600 13,200 9,480 7,940 5,490 7,840 23,000
5 9,000 7,100 8,960 19,400 29,000 30,500 13,000 9,310 7,660 5,330 8,100 23,600
6 8,930 7,870 10,600 19,100 30,600 29,700 12,700 9,370 7,610 5,350 8,140 22,700
7 8,490 8,910 11,500 19,200 31,300 29,100 12,400 9,270 7,650 5,310 8,520 21,700
8 7,660 10,100 12,500 20,000 30,900 28,500 12,300 9,330 7,560 5,260 9,090 21,200
9 7,030 10,400 13,400 21,200 30,200 28,000 12,200 9,380 7,650 5,290 10,100 21,600
10 6,740 10,000 14,700 22,500 30,000 26,800 12,000 9,220 7,550 5,390 10,500 24,400
11 6,890 9,450 13,700 23,000 29,300 25,400 12,000 9,240 7,630 5,300 10,800 23,900
12 7,490 9,070 12,900 23,300 29,400 24,500 12,000 9,280 7,650 5,280 13,000 23,000
13 7,970 9,450 13,100 24,200 30,100 23,800 11,800 9,210 7,460 5,250 15,000 21,800
14 8,120 10,300 13,300 24,100 30,600 22,900 11,600 9,160 7,470 5,550 16,500 20,800
15 7,400 10,500 14,700 23,600 31,100 21,800 11,600 9,190 7,550 5,880 17,300 19,700
16 6,510 10,700 18,300 23,900 33,000 21,400 11,400 9,160 7,510 5,780 16,900 18,800
17 6,890 10,700 20,300 24,200 35,900 20,900 11,400 9,160 7,500 5,950 16,300 19,900
18 8,320 9,730 19,600 24,100 36,500 20,800 11,200 9,090 7,530 5,810 16,600 21,400
19 8,600 9,660 20,500 23,600 35,600 20,100 11,300 9,110 7,550 5,750 17,000 22,300
20 8,750 10,700 20,800 24,000 34,400 19,600 11,000 9,160 7,430 5,750 17,500 21,600
21 8,010 10,700 18,000 24,600 34,100 19,000 10,700 9,120 7,430 5,920 16,700 20,500
22 8,110 10,500 17,800 25,500 34,400 18,200 10,800 9,060 7,510 5,890 15,900 19,700
23 8,110 9,770 19,600 26,300 37,000 17,400 10,600 9,070 7,460 5,910 15,100 19,300
24 9,050 8,880 19,800 26,400 38,500 16,900 10,600 9,060 7,290 5,800 15,600 20,200
25 9,300 8,230 20,200 26,800 37,200 16,300 10,400 8,950 7,340 5,750 16,300 19,900
26 9,380 8,050 20,100 26,900 35,900 16,000 10,200 8,990 7,380 5,740 17,200 17,400
27 9,200 8,530 20,000 27,200 34,800 15,400 9,900 9,080 7,380 6,010 18,000 18,500
28 7,860 8,700 19,800 27,700 33,400 15,000 9,960 8,950 7,290 6,700 17,400 18,100
29 7,750 8,130 19,700 27,400 33,000 14,800 9,910 9,080 7,210 7,950 17,600 15,700
30 7,870   19,300 26,800 31,900 14,500 10,100 9,000 6,950 7,890 18,000 12,200
31 7,450   18,400   30,500   9,920 9,070   8,030   9,560