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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 11530500 KLAMATH R NR KLAMATH CA


Del Norte County, California
Hydrologic Unit Code 18010209
Latitude  41°30'40", Longitude 123°58'42" NAD27
Drainage area 12,100  square miles
Gage datum 5.41 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 1962-10-01 -> 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 26,000 31,700 31,400 31,500 21,600 16,300 6,700 3,310 3,090 3,360 5,720 17,500
2 24,000 30,600 32,400 30,300 21,600 15,700 6,600 3,270 3,020 3,270 5,750 20,900
3 23,100 30,600 33,200 28,800 21,700 15,100 6,290 3,320 3,070 3,290 5,970 22,300
4 23,600 29,900 30,200 27,500 21,700 14,900 6,050 3,290 3,080 3,310 5,870 19,400
5 23,500 27,700 28,700 26,800 21,900 14,700 5,880 3,250 3,040 3,320 6,390 19,600
6 24,700 26,900 29,600 27,400 21,900 14,300 5,740 3,210 3,060 3,340 7,340 19,600
7 24,300 28,400 29,000 27,800 21,800 14,000 5,610 3,190 3,050 3,360 7,770 20,200
8 24,600 28,300 28,800 28,200 21,700 13,400 5,450 3,170 3,020 3,420 8,420 20,000
9 26,700 27,800 30,000 27,500 21,500 12,800 5,300 3,140 3,010 3,780 8,660 19,000
10 27,800 28,000 32,100 26,500 21,200 12,300 5,170 3,110 3,130 4,140 9,010 19,900
11 29,000 25,800 31,100 26,200 20,800 11,900 5,030 3,070 3,150 4,170 9,890 20,300
12 29,000 25,400 30,100 26,100 20,400 11,500 4,890 3,040 3,070 4,540 11,200 19,100
13 33,800 27,600 32,100 26,100 20,000 11,200 4,770 3,010 3,020 4,880 10,900 21,900
14 37,200 30,200 34,300 26,400 19,900 11,000 4,660 2,980 3,030 4,490 10,900 27,900
15 37,900 31,500 34,200 25,800 19,900 10,800 4,520 2,960 3,000 4,370 10,700 27,000
16 39,700 32,500 34,200 24,900 19,900 10,500 4,390 2,970 2,980 4,290 11,900 25,000
17 44,300 33,200 34,500 24,900 19,700 10,200 4,310 2,980 2,990 4,420 12,500 24,900
18 40,900 37,500 33,700 24,900 19,500 9,880 4,270 2,970 3,050 4,230 11,900 21,800
19 38,200 36,000 33,200 24,700 19,500 9,650 4,220 2,990 3,160 4,400 11,200 22,700
20 38,200 34,900 31,300 24,100 19,100 9,270 4,130 2,960 3,200 4,360 11,900 25,500
21 39,900 34,400 30,900 23,600 18,600 8,860 4,030 2,950 3,140 4,220 14,300 27,100
22 40,100 33,900 30,800 23,200 18,300 8,520 3,940 2,970 3,110 4,330 16,700 32,100
23 37,800 33,700 32,400 23,000 18,000 8,220 3,860 2,980 3,130 5,030 16,900 30,300
24 35,600 32,100 32,600 23,200 17,700 8,090 3,780 2,980 3,110 5,430 18,400 26,800
25 32,100 29,900 31,900 23,000 17,300 7,750 3,710 3,010 3,160 6,150 17,800 25,100
26 32,000 29,500 31,800 22,500 16,900 7,620 3,650 3,040 3,250 5,840 17,200 24,400
27 35,700 30,700 30,500 22,300 16,700 7,460 3,580 3,050 3,280 5,400 16,400 25,400
28 33,100 32,300 30,100 22,400 16,900 7,250 3,520 3,060 3,240 5,290 15,700 28,600
29 30,500 39,600 29,800 22,100 16,500 7,110 3,480 3,030 3,350 5,400 15,500 29,100
30 30,300   33,200 21,900 16,100 6,870 3,430 3,070 3,530 5,810 15,700 28,200
31 29,100   33,400   16,300   3,360 3,250   5,990   29,900