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USGS Daily Statistics for the Nation

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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 15261000 COOPER C AT MOUTH NR COOPER LANDING AK


Kenai Peninsula Borough, Alaska
Hydrologic Unit Code 19020302
Latitude  60°28'50", Longitude 149°52'50" NAD27
Drainage area 16.8  square miles
Gage datum 436.9 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 1957-10-01 -> 2026-09-30)

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 18 16 13 14 41 112 107 64 49 62 55 29
2 19 15 13 14 42 112 104 63 48 74 52 28
3 19 15 13 14 43 111 101 62 47 79 50 28
4 19 19 13 14 46 110 99 61 46 70 49 27
5 19 20 13 14 48 114 100 59 46 65 50 26
6 19 18 13 14 50 117 101 58 45 63 47 26
7 19 17 13 14 51 118 100 56 45 58 43 28
8 18 16 13 14 55 115 99 55 45 54 42 27
9 18 16 13 14 58 116 96 55 44 53 41 30
10 18 16 12 15 62 117 93 54 45 57 41 29
11 17 16 12 15 67 117 91 53 49 52 37 28
12 18 15 12 15 69 117 89 53 52 50 37 26
13 17 15 12 15 71 117 86 53 52 58 36 25
14 17 15 12 15 72 116 84 55 51 53 35 24
15 18 15 12 16 80 118 82 55 49 49 34 24
16 18 14 12 17 86 122 84 54 49 58 32 22
17 18 14 12 18 86 127 86 52 49 54 31 21
18 19 14 12 19 85 141 84 51 53 52 31 21
19 19 14 12 21 86 145 82 50 55 50 31 21
20 18 15 12 22 88 143 81 50 57 50 32 20
21 18 14 12 22 89 141 78 50 60 54 32 20
22 18 14 13 23 91 141 75 49 76 56 34 20
23 18 14 12 25 97 138 74 49 74 68 38 19
24 19 14 13 26 101 132 74 49 69 67 35 19
25 19 14 13 27 103 127 71 49 64 57 32 19
26 19 14 13 29 106 123 70 48 61 53 30 19
27 19 14 13 31 108 120 68 47 58 49 31 19
28 18 14 12 34 109 115 67 47 56 52 31 18
29 18 14 13 37 108 112 67 48 55 58 31 19
30 17   13 38 110 110 65 46 53 61 32 19
31 17   13   111   66 46   61   19