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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 13057300 GRAYS LAKE DIV TO BLACKFOOT R BASIN NR WAYAN, ID


Caribou County, Idaho
Hydrologic Unit Code 17040207
Latitude  43°00'20", Longitude 111°29'37" NAD83
Gage datum 6,370.34 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 1965-10-01 -> 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 0.91 0.87 0.73 17 142 214 48 1.2 1.6 0.26 0.69 0.88
2 0.87 0.83 0.76 19 144 196 46 1.2 0.95 0.28 0.76 1
3 0.85 0.8 0.75 21 148 201 42 2.8 0.59 0.29 0.71 1.3
4 0.83 0.8 0.72 23 146 203 38 1.9 0.54 0.29 0.67 2.1
5 0.84 0.82 0.73 24 140 195 33 1.9 0.3 0.36 0.65 1.8
6 0.86 0.79 0.74 26 142 187 31 2.1 0.28 0.56 0.64 1.6
7 0.87 0.87 0.76 28 151 178 31 1.1 0.27 0.38 1.9 1.6
8 0.88 0.9 0.76 29 164 171 27 1.1 0.27 0.33 2.8 0.85
9 0.89 0.96 0.77 30 171 159 22 1.1 0.26 0.72 1.6 0.89
10 0.9 0.87 0.77 31 182 141 19 1 0.22 0.88 0.83 0.94
11 0.99 0.73 0.77 31 186 137 14 1.3 0.24 0.68 0.85 0.94
12 0.87 0.7 0.77 32 183 128 5.5 1.8 0.26 0.51 0.88 0.94
13 0.84 0.71 0.78 35 179 125 6.2 1.7 0.25 0.47 0.94 0.97
14 0.88 0.71 0.79 37 188 131 14 1.6 0.24 0.47 0.93 0.97
15 0.88 0.71 0.81 40 204 129 16 1.5 0.23 0.47 1.1 0.98
16 0.9 0.71 0.81 41 215 139 15 1.4 0.45 0.62 1 0.97
17 0.89 0.7 0.92 44 237 142 15 1.3 0.4 0.61 0.98 0.97
18 0.86 0.7 0.82 47 257 150 11 1.2 0.31 0.62 0.94 0.97
19 0.84 0.69 0.81 52 278 163 6.3 1.2 0.29 0.74 1 0.98
20 0.85 0.68 0.82 60 282 157 5.4 1.1 0.42 0.65 0.97 0.98
21 0.83 0.72 0.83 79 278 147 4.4 1.1 0.33 0.59 1 1
22 0.86 0.73 0.95 100 277 140 3.9 1 0.3 0.63 1.1 0.97
23 0.86 0.75 0.94 112 277 130 3.5 0.94 0.3 0.64 1.1 0.98
24 0.86 0.74 0.98 122 277 111 3.2 0.89 0.26 0.72 1 0.96
25 0.89 0.73 1 122 273 88 2.3 0.84 0.24 0.65 1 0.96
26 0.9 0.73 1.5 117 274 65 1.6 0.82 0.27 1.1 0.94 0.94
27 0.92 0.73 2.2 117 273 54 1.7 1.5 0.19 1 0.85 0.92
28 0.89 0.76 2.6 120 259 46 1.8 1.7 0.19 1.1 0.87 0.92
29 0.93 1.1 4.6 131 254 55 1.5 1.7 0.31 0.9 0.86 0.91
30 0.94   9.9 139 240 55 1.2 1.6 0.24 0.74 0.85 0.92
31 0.9   16   225   1.2 1.6   0.75   0.91