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USGS Daily Statistics for Alaska

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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 15564879 SLATE C AT COLDFOOT AK


Yukon-Koyukuk Census Area County, Alaska
Hydrologic Unit Code 19090101
Latitude  67°15'16", Longitude 150°10'38" NAD83
Drainage area 73.1  square miles
Gage datum 1,046.6 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 1994-10-01 -> 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 3.7 1.8 1.4 1.2 28 335 92 164 175 110 32 9.5
2 3.6 1.8 1.4 1.2 44 303 93 163 190 105 30 9.3
3 3.5 1.8 1.4 1.2 45 292 96 182 185 101 28 9
4 3.4 1.8 1.4 1.2 44 289 95 168 170 98 27 8.8
5 3.3 1.8 1.4 1.2 43 272 93 142 160 96 25 8.5
6 3.1 1.7 1.4 1.2 42 272 115 132 168 92 23 8.3
7 3 1.7 1.4 1.2 51 268 116 131 170 93 22 8.1
8 2.9 1.7 1.4 1.2 68 237 103 137 166 88 21 7.9
9 2.9 1.7 1.3 1.2 91 237 124 127 164 83 20 7.7
10 2.8 1.7 1.3 1.3 117 263 104 122 156 80 19 7.6
11 2.7 1.7 1.3 1.4 145 214 97 132 149 74 18 7.4
12 2.7 1.6 1.3 1.4 172 190 107 128 148 71 17 7.1
13 2.6 1.6 1.3 1.4 196 166 103 144 169 68 17 6.9
14 2.5 1.6 1.3 1.4 206 153 136 175 176 64 16 6.8
15 2.5 1.6 1.3 1.5 209 141 134 178 156 62 16 6.5
16 2.4 1.6 1.3 1.6 229 151 103 171 146 60 15 6.4
17 2.4 1.6 1.3 1.7 228 141 120 180 142 59 14 6.2
18 2.3 1.6 1.2 2 234 133 123 207 151 59 14 6
19 2.3 1.6 1.2 2.3 256 127 112 208 152 57 14 5.8
20 2.2 1.6 1.2 2.7 277 124 114 188 151 54 13 5.6
21 2.2 1.6 1.2 3.2 309 118 115 205 156 51 13 5.4
22 2.1 1.5 1.2 3.6 341 113 101 191 154 49 12 5.2
23 2.1 1.5 1.2 4 376 117 98 184 162 46 12 5
24 2 1.5 1.2 4.6 386 107 98 167 152 45 11 4.8
25 2 1.5 1.2 5.4 397 100 96 176 139 43 11 4.7
26 2 1.5 1.2 6 439 98 127 196 132 41 11 4.5
27 2 1.4 1.2 6.8 381 99 104 217 128 39 10 4.4
28 1.9 1.4 1.2 8.3 331 94 105 199 122 37 10 4.2
29 1.9 0.86 1.2 11 305 91 110 180 117 35 9.8 4.1
30 1.9   1.2 15 302 92 113 171 114 34 9.4 3.9
31 1.8   1.2   328   120 173   32   3.8