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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 13120000 NF BIG LOST RIVER AT WILD HORSE NR CHILLY ID


Custer County, Idaho
Hydrologic Unit Code 17040218
Latitude  43°55'58", Longitude 114°06'50" NAD83
Drainage area 115  square miles
Gage datum 6,861.97 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 1943-10-01 -> 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 24 22 20 29 119 421 298 96 46 40 36 27
2 24 21 20 29 126 420 292 92 46 40 35 26
3 24 22 20 30 137 428 283 90 44 40 35 26
4 24 22 20 31 149 448 275 88 44 40 35 26
5 24 22 20 33 156 475 264 85 44 40 34 25
6 24 21 21 35 173 472 257 81 47 39 34 25
7 24 22 21 38 190 462 248 78 47 39 34 25
8 24 21 21 39 197 455 240 76 46 39 34 25
9 24 22 21 41 200 449 235 73 47 38 33 25
10 24 22 21 42 203 439 229 71 47 38 32 25
11 24 21 21 43 209 427 219 69 47 39 32 25
12 23 22 21 45 220 423 207 68 47 38 33 25
13 23 22 21 47 228 425 197 67 45 38 32 25
14 23 21 21 50 238 412 189 64 45 38 31 25
15 24 21 22 52 254 405 179 62 45 38 30 25
16 24 21 22 54 274 405 170 61 44 38 30 25
17 24 21 22 58 294 402 163 60 43 38 30 24
18 24 21 22 61 307 398 156 58 44 37 30 24
19 23 21 23 64 325 391 148 58 44 37 30 24
20 23 21 23 69 342 387 142 59 44 37 29 24
21 23 21 24 75 352 385 137 60 43 37 29 24
22 23 21 24 82 352 375 132 60 42 36 28 24
23 23 21 25 88 356 364 129 59 41 36 28 27
24 23 21 25 92 373 359 125 57 41 36 28 25
25 23 21 25 94 379 351 120 55 41 36 28 25
26 22 21 26 101 384 352 116 53 40 36 27 24
27 22 21 26 105 390 343 111 51 40 35 27 24
28 22 21 26 105 398 327 109 50 39 35 27 24
29 22 22 26 108 408 313 107 48 39 35 27 24
30 22   27 112 414 304 103 47 40 36 26 24
31 22   28   416   98 47   37   24