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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 13120500 BIG LOST RIVER AT HOWELL RANCH NR CHILLY ID


Custer County, Idaho
Hydrologic Unit Code 17040218
Latitude  43°59'54", Longitude 114°01'16" NAD83
Drainage area 440  square miles
Gage datum 6,626.34 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 1903-10-01 -> 2024-09-30)

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 83 77 74 96 341 1,170 913 301 147 128 122 93
2 84 76 74 95 359 1,180 899 289 145 129 119 92
3 84 77 74 97 385 1,210 873 282 142 131 118 91
4 84 77 74 100 416 1,250 850 275 140 129 116 88
5 83 77 75 104 437 1,310 812 265 141 131 114 87
6 82 76 76 108 468 1,330 787 252 149 129 114 88
7 83 77 76 114 504 1,330 763 241 151 129 114 88
8 83 76 76 118 526 1,330 736 235 147 129 114 86
9 83 77 76 124 547 1,300 714 229 148 128 112 86
10 83 76 76 129 571 1,270 696 226 146 128 111 88
11 83 75 76 136 590 1,250 666 217 144 128 110 87
12 82 77 77 142 620 1,270 632 218 146 127 111 87
13 82 77 78 149 649 1,280 606 212 142 126 109 87
14 82 77 78 158 676 1,260 582 206 141 125 108 87
15 83 77 79 162 725 1,250 553 200 142 126 106 86
16 84 77 82 167 760 1,230 519 194 138 127 108 84
17 84 76 83 177 807 1,210 496 188 137 125 106 84
18 83 76 83 188 837 1,190 474 184 138 122 104 84
19 83 76 83 197 875 1,180 453 183 137 122 103 84
20 82 76 85 211 908 1,150 440 187 137 122 103 85
21 82 75 86 226 931 1,160 422 189 136 121 99 84
22 80 76 87 245 943 1,150 409 185 134 121 97 84
23 81 76 89 259 971 1,110 396 181 132 120 96 90
24 80 76 88 267 1,030 1,080 388 178 130 120 97 87
25 81 76 90 270 1,070 1,060 378 171 129 120 98 86
26 80 75 92 282 1,100 1,060 363 167 128 120 95 85
27 80 75 91 292 1,120 1,030 346 163 127 118 95 84
28 79 75 90 298 1,140 996 338 158 126 119 94 84
29 78 78 91 307 1,150 960 336 154 128 120 93 84
30 78   93 320 1,160 932 322 152 128 119 92 84
31 78   98   1,160   306 151   123   83