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Water-Year Summary for Site USGS 11530500

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Available Parameters
00010 Temperature, water(Max.,Min.,Med.,Mean)  
00060 Discharge(Mean)  

Water year 2016: 2015-10-01 to 2016-09-30
 

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USGS Water-Year Summary 2016
11530500 Klamath River near Klamath, CA
LOCATION - Lat 41°30'40", long 123°58'42" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.18, T.13 N., R.2 E., Del Norte County, CA, Hydrologic Unit 18010209, on right bank, 2.8 mi upstream from Turwar Creek, and 3.3 mi southeast of Klamath.
DRAINAGE AREA - 12,100 mi². approximately (not including Lost River or Lower Klamath Lake Basins).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1910 to December 1926 (published as "near Requa"), October 1950 to September 1994, October 1995 to September 1997 (stage only), and October 1997 to current year. Monthly discharge only for some periods, published in WSP 1315-B.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is NGVD of 1929. Prior to June 1926, nonrecording gage at same site at different datum. Oct. 1, 1950, to Oct. 2, 1975, water-stage recorder at same site at datum 5.60 ft above NGVD of 1929. Oct. 2, 1975, to Sept. 30, 2003, water-stage recorder at site 2.6 mi downstream. Relocated Sept. 30, 2003 to previous site 2.6 mi upstream, current datum.
REMARKS - Records rated good. Gage heights at site can be affected at low flows by wave action from boat traffic. Medium and low flows considerably regulated by reservoirs and powerplants upstream from station and by transbasin diversion (from Trinity River) to Judge Francis Carr Powerplant (station 11525430) since April 1963. Large diversions for irrigation upstream from station. See schematic diagram of Klamath River and Trinity River Basins available from the California Water Science Center.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of December 1861 reached a stage of 60 ft, site and datum then in use, discharge 450,000 ft³/s; flood of February 1881 reached a discharge of 360,000 ft³/s; flood of February 1890 reached a stage of 63 ft, site and datum then in use, discharge 425,000 ft³/s. Maximum discharges for 1927 and 1932-50, determined from upstream stations, are published in WSP 1686, Part 11, Volume 2.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 557,000 ft³/s, Dec. 23, 1964, gage height, 55.3 ft, current datum, from floodmarks, from rating curve extended above 230,000 ft³/s, on basis of flood-routing study; minimum daily, 1,310 ft³/s, Sept. 4, 1977.
Water-Data Report 2016
11530500 Klamath River near Klamath, CA -- Continued
DISCHARGE, CUBIC FEET PER SECOND
YEAR 2015-10-01 to 2016-09-30
DAILY MEAN VALUES
[e, Value has been estimated.]
Day Oct
 2015
12,040
22,080
32,240
42,230
52,120
62,100
72,090
82,160
92,140
102,110
112,120
122,180
132,250
142,180
152,150
162,140
172,170
182,200
192,250
202,230
212,270
222,220
232,130
242,100
252,120
262,170
272,180
282,320
292,500
302,430
312,360
Total67,980
Mean2,193
Max2500
Min2040
Ac-ft134,800
Day Nov
2015
12,710
23,030
32,800
42,580
52,490
62,420
72,390
82,610
93,250
103,230
112,910
122,700
132,650
14e2,610
152,800
163,230
173,160
184,030
194,410
204,360
214,090
223,530
233,200
243,470
254,580
263,500
273,100
282,950
29e2,870
30e2,840
 -- 
Total94,500
Mean3,150
Max4580
Min2390
Ac-ft187,400
Day Dec
2015
1e2,810
23,250
36,210
414,100
510,400
69,220
712,900
818,900
922,400
1035,300
1137,300
1225,900
1366,500
1449,900
1525,800
1617,900
1719,400
1840,500
1947,500
2033,100
2139,200
2273,400
2362,800
2445,700
2535,600
2627,200
2722,300
2820,100
2917,700
3016,000
3114,700
Total874,000
Mean28,190
Max73400
Min2810
Ac-ft1,734,000
Day Jan
2016
113,400
212,400
311,600
411,300
512,700
616,700
717,000
815,700
915,000
1016,100
1115,500
1215,300
1327,700
1447,900
1541,000
1640,300
1775,400
18168,000
19102,000
2088,000
2167,100
2263,500
2372,700
2470,200
2560,800
2651,200
2743,600
2842,500
2973,400
30110,000
3179,700
Total1,498,000
Mean48,310
Max168000
Min11300
Ac-ft2,970,999
Day Feb
2016
160,800
249,100
341,200
436,800
532,200
628,800
726,600
826,000
926,400
1025,900
1124,800
1224,500
1324,400
1423,200
1523,400
1623,200
1722,100
1826,100
1930,900
2031,500
2128,000
2225,100
2323,200
2421,900
2520,900
2620,700
2723,700
2823,800
2922,200
 -- 
 -- 
Total817,400
Mean28,190
Max60800
Min20700
Ac-ft1,621,000
Day Mar
2016
121,000
222,300
324,600
426,700
527,100
680,800
778,000
858,800
951,800
1069,300
1184,000
1273,800
1385,100
14125,000
1599,000
1675,600
1768,000
1860,800
1952,700
2049,700
2163,100
2272,400
2364,900
2455,500
2550,800
2646,300
2743,000
2839,700
2936,200
3033,300
3130,500
Total1,770,000
Mean57,089
Max125000
Min21000
Ac-ft3,510,000
Day Apr
2016
128,700
227,900
327,400
426,800
525,400
623,800
723,900
824,500
925,200
1025,400
1124,300
1223,700
1323,000
1422,500
1521,900
1619,600
1718,900
1818,800
1918,800
2019,000
2118,900
2219,700
2320,800
2419,200
2518,200
2617,400
2717,000
2817,500
2916,500
3016,300
 -- 
Total651,000
Mean21,700
Max28700
Min16300
Ac-ft1,291,000
Day May
2016
116,800
216,100
316,500
416,600
517,700
617,700
718,500
818,800
920,200
1021,400
1121,900
1219,900
1318,100
1419,700
1520,900
1618,800
1716,900
1815,300
1914,900
2014,600
2114,100
2213,800
2313,400
2413,000
2512,800
2612,200
2712,000
2811,700
2911,500
3011,200
3111,400
Total498,400
Mean16,080
Max21900
Min11200
Ac-ft988,600
Day Jun
2016
111,300
211,200
310,500
410,500
510,600
610,300
710,200
89,890
99,520
109,030
118,440
128,600
138,190
147,710
157,850
167,550
177,430
187,970
197,630
207,330
217,140
226,990
236,910
246,790
256,700
266,400
276,150
286,310
296,020
305,890
 -- 
Total247,000
Mean8,235
Max11300
Min5890
Ac-ft490,000
Day Jul
2016
15,850
26,000
35,630
45,460
55,310
65,170
75,030
84,930
95,090
105,130
114,960
124,720
134,640
144,530
154,360
164,310
174,210
184,150
194,190
204,020
213,840
223,700
233,540
243,430
253,410
263,360
273,260
283,250
293,160
303,070
312,960
Total134,700
Mean4,344
Max6000
Min2960
Ac-ft267,100
Day Aug
2016
12,860
22,780
32,690
42,610
52,570
62,530
72,520
82,540
92,530
102,510
112,480
122,440
132,410
142,370
152,340
162,320
172,340
182,350
192,290
202,270
212,870
223,230
233,020
242,870
252,740
262,580
272,780
283,050
292,990
303,020
313,040
Total81,940
Mean2,643
Max3230
Min2270
Ac-ft162,500
Day Sep
2016
13,030
23,040
33,060
43,080
53,080
63,090
73,100
83,090
92,910
102,850
112,820
122,800
132,790
142,780
152,800
162,820
172,810
18e2,800
19e2,810
20e2,810
212,810
222,810
232,840
242,910
252,880
262,750
272,580
282,440
292,290
302,190
 -- 
Total84,870
Mean2,829
Max3100
Min2190
Ac-ft168,300
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1963 - 2016, BY WATER YEAR (WY)
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
Mean 4,571 12,260 25,250 31,590 30,730 32,229 25,190 19,640 11,200 4,746 3,121 3,165
Max 17,830 55,620 87,770 97,760 102,700 82,410 60,400 40,080 30,059 12,220 6,599 5,923
(WY) (1963) (1974) (1965) (1970) (1986) (1983) (1974) (1983) (1998) (1983) (1983) (1983)
Min 2,134 3,150 3,379 3,495 4,231 6,954 5,447 5,638 3,630 1,782 1,441 1,976
(WY) (1995) (2016) (2014) (2014) (1977) (1977) (1977) (1977) (1977) (1977) (1977) (1991)
Water-Data Report 2016
11530500 Klamath River near Klamath, CA -- Continued
SUMMARY STATISTICS
Water Year 2016 Water Years 1963 - 2016
Annual total 6,819,000                 
Annual mean 18,630         16,780        
Highest annual mean          36,100         1983
Lowest annual mean          4,036         1977
Highest daily mean 168,000         Jan 18 420,000         Dec 23, 1964
Lowest daily mean 2,040         Oct 01 1,310         Sep 04, 1977
Annual 7-day minimum 2,120         Oct 05 1,366         Aug 18, 1977
Maximum peak flow 199,000a        Jan 18 557,000a        Dec 23, 1964
Maximum peak stage 36.33      Jan 18 55.30      Dec 23, 1964
Annual runoff (cfsm) 1.54      1.40     
Annual runoff (inches) 21.0       19.0      
10 percent exceeds 50,170         38,100        
50 percent exceeds 10,450         9,450        
90 percent exceeds 2,357         2,810        
a Discharge affected by Regulation or Diversion
USGS Water-data graph for site USGS 11530500