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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 13057500 GRAYS LAKE OUTLET NR HERMAN ID


Bonneville County, Idaho
Hydrologic Unit Code 17040205
Latitude  43°08'05", Longitude 111°29'42" NAD83
Drainage area 137  square miles
Gage datum 6,384 feet above NGVD29
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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 1915-10-01 -> 2022-09-30)

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 0.42 0.48 0.58 1.1 97 70 22 4.6 1.1 1.3 1.6 0.43
2 0.41 0.47 0.56 1.1 100 68 22 4.6 1 1.4 1.6 0.45
3 0.42 0.5 0.56 1.4 100 64 21 4.3 1.1 2 1.6 0.48
4 0.42 0.49 0.55 1.5 100 62 20 4.1 1.2 2.4 1.6 0.49
5 0.48 0.47 0.55 1.5 91 60 19 3.9 1.1 2.4 0.41 0.56
6 0.48 0.48 1 1.6 93 51 19 3 1.1 2.5 0.42 0.52
7 0.48 0.53 2.2 1.4 105 55 18 2.8 1.1 2.3 0.41 0.5
8 0.48 0.58 2.2 1.5 95 52 17 2.7 1.1 2.5 0.42 0.5
9 0.44 0.59 0.98 1.6 82 48 16 2.5 1.1 2.5 0.45 0.46
10 0.5 0.71 0.61 1.8 87 47 15 2.4 1 2.4 0.43 0.44
11 0.49 0.58 0.59 3.6 95 44 13 2.4 1.1 2.4 0.44 0.47
12 0.76 0.54 0.57 3.4 98 42 12 2.2 1.1 2.3 0.44 0.45
13 0.88 0.53 0.56 3.8 106 40 11 2.2 1.1 2.3 0.42 0.43
14 0.63 0.53 0.57 4.3 111 39 11 1.8 0.96 2.3 0.42 0.42
15 0.48 0.53 0.58 4.9 111 39 11 1.7 0.98 2.2 0.42 0.41
16 0.42 0.53 0.59 7 103 38 11 1.6 0.95 2.2 0.41 0.41
17 0.42 0.54 0.64 8.8 98 36 10 1.6 1 2.1 0.43 0.44
18 0.43 0.54 0.78 10 104 34 9.8 1.5 1 2.2 0.43 0.46
19 0.45 0.54 0.8 8.6 104 33 9.5 1.5 1 2.7 0.44 0.47
20 0.48 0.54 0.82 24 101 32 9 1.4 1 2.4 0.45 0.45
21 0.52 0.56 0.95 25 95 31 8.6 1.4 1.1 2.5 0.46 0.42
22 0.49 0.56 1 47 88 30 8.2 1.4 1.1 2.5 0.44 0.46
23 0.44 0.56 0.95 54 86 29 8 1.3 1.1 1.7 0.42 0.45
24 0.49 0.56 0.9 66 86 28 7.5 1.2 1.1 1.7 0.43 0.42
25 0.46 0.57 0.73 100 81 28 7 1.2 1.1 1.8 0.45 0.51
26 0.45 0.56 0.72 77 79 27 6.1 1.2 1.1 1.7 0.44 0.49
27 0.46 0.57 0.67 77 77 26 5.8 1.2 1.1 1.7 0.44 0.46
28 0.46 0.58 0.65 78 74 25 5.6 1.2 1.2 1.8 0.44 0.47
29 0.47 0.3 0.7 83 74 24 5.3 1.1 1.2 1.6 0.48 0.44
30 0.47   1.2 110 74 23 5 1.1 1.1 1.6 0.44 0.42
31 0.47   1.2   75   4.7 1.2   1.6   0.41