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USGS Daily Statistics for Idaho

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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 12305000 KOOTENAI RIVER AT LEONIA, ID


Lincoln County, Montana
Hydrologic Unit Code 17010104
Latitude  48°37'03", Longitude 116°02'47" NAD83
Drainage area 11,740  square miles
Gage datum 1,794.12 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 46 - 47 years of record in, ft3/s   (Calculation Period 1971-10-01 -> 2018-09-30)

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 12,600 11,800 9,520 10,100 15,100 19,700 17,200 13,000 10,300 10,700 13,000 17,400
2 12,200 12,000 9,620 10,100 15,400 20,300 17,300 13,200 9,830 10,500 13,800 18,200
3 12,800 12,100 9,820 10,200 15,600 20,800 17,400 13,000 9,600 10,500 14,100 17,500
4 12,800 11,500 9,780 10,200 15,600 20,800 17,000 12,800 9,760 10,900 14,400 18,100
5 13,400 10,800 9,360 10,600 15,700 20,700 16,500 12,500 9,690 11,100 14,200 18,600
6 13,400 11,200 9,090 10,900 16,000 20,300 15,700 12,300 9,580 10,900 13,700 18,700
7 13,400 11,600 9,090 11,200 16,000 20,300 15,600 12,400 9,380 10,700 13,900 18,200
8 13,700 12,400 9,240 11,400 15,800 20,500 14,900 12,400 9,250 10,600 14,600 18,800
9 13,700 12,700 9,460 11,600 15,800 20,600 14,600 12,700 10,000 10,800 14,600 19,000
10 13,900 11,600 9,650 11,600 15,800 20,300 14,400 12,300 10,500 11,000 15,300 18,000
11 13,600 11,300 9,100 11,800 16,000 20,700 14,600 12,200 10,200 11,300 15,300 17,600
12 13,800 11,000 8,740 12,400 15,900 21,000 14,300 11,800 9,730 11,600 15,600 18,400
13 14,300 10,600 8,750 12,800 16,100 21,200 13,800 11,400 9,700 11,700 15,100 18,600
14 14,400 10,900 8,840 12,900 16,400 21,100 13,600 11,500 9,970 11,900 14,700 19,000
15 13,900 11,400 9,240 12,900 17,400 21,300 13,600 11,600 10,400 11,900 15,400 18,800
16 14,200 11,100 9,760 12,700 18,700 21,500 13,700 11,700 10,300 11,900 15,600 18,300
17 13,700 10,900 9,760 12,700 19,500 21,200 14,100 11,700 10,200 12,300 16,200 17,900
18 13,000 10,400 9,570 12,800 19,800 20,700 13,800 11,900 10,600 12,300 16,600 17,600
19 12,400 10,200 9,510 12,800 19,700 20,300 13,500 11,400 10,300 12,400 16,800 17,800
20 11,900 10,600 9,120 12,900 19,400 20,000 13,300 11,500 10,400 12,300 17,100 17,600
21 11,800 10,900 9,060 13,300 19,600 19,800 13,200 11,800 10,700 11,800 17,100 17,400
22 11,800 10,700 9,250 13,700 20,200 19,400 13,100 11,600 11,000 11,400 16,500 17,600
23 12,100 10,700 9,280 14,100 20,800 19,200 13,200 11,400 10,700 11,500 16,200 17,900
24 12,300 10,500 9,420 14,700 20,500 19,100 12,800 11,500 10,600 11,900 16,000 17,100
25 12,400 10,300 9,760 14,900 20,200 18,600 12,900 11,300 10,800 12,100 16,600 14,900
26 12,400 10,000 9,480 14,600 20,100 18,700 12,800 10,800 10,600 12,300 15,900 14,100
27 12,200 9,920 9,470 14,600 20,000 18,300 12,800 10,300 10,600 12,200 15,300 14,800
28 11,900 9,620 9,440 14,800 19,800 17,700 12,700 10,300 10,800 12,100 15,300 15,500
29 11,900 9,570 9,670 15,000 19,700 17,700 12,700 10,300 11,100 12,200 15,700 15,600
30 11,900   9,480 15,100 19,600 17,400 12,700 10,300 11,100 12,300 16,200 14,800
31 11,800   9,800   19,500   13,200 10,600   12,600   13,800