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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 13127000 BIG LOST RIVER BL MACKAY RES NR MACKAY ID


Custer County, Idaho
Hydrologic Unit Code 17040218
Latitude  43°56'21", Longitude 113°38'54" NAD83
Drainage area 801  square miles
Gage datum 5,950.58 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
1 111 120 132 151 202 866 836 512 275 207 118 100
2 112 120 133 149 208 873 810 503 268 205 114 100
3 112 121 134 149 215 875 792 495 268 200 113 100
4 112 121 136 150 230 870 781 488 266 194 113 101
5 112 121 136 149 243 881 766 481 259 195 112 102
6 112 122 137 151 258 901 749 474 257 198 107 103
7 113 121 137 149 273 911 733 468 253 194 106 104
8 114 121 138 148 293 933 719 462 249 191 109 104
9 115 121 138 149 313 965 713 454 246 189 110 104
10 115 121 139 149 330 972 704 443 245 187 109 105
11 115 122 139 150 347 960 697 433 240 188 106 107
12 116 122 140 152 361 940 682 423 236 190 104 108
13 116 122 142 153 376 930 667 413 234 191 106 107
14 117 123 142 154 395 930 654 407 231 192 105 108
15 117 123 142 155 405 931 634 401 227 187 109 108
16 117 123 144 155 421 937 613 396 225 167 107 109
17 117 125 145 155 441 928 601 391 220 154 106 108
18 118 126 146 155 464 929 594 383 218 150 105 109
19 118 125 148 157 498 937 587 376 217 146 103 109
20 119 125 149 159 521 938 584 369 215 144 99 109
21 119 130 150 162 553 939 582 362 213 142 98 109
22 119 127 151 165 584 946 582 355 211 140 98 108
23 119 128 152 168 626 929 578 349 211 135 98 108
24 119 128 152 169 655 914 570 341 212 134 97 108
25 119 128 152 174 683 909 566 331 211 132 97 108
26 119 129 151 179 710 914 561 322 211 131 97 109
27 119 132 151 184 734 910 556 314 211 134 98 109
28 119 132 152 187 763 901 550 305 211 133 98 109
29 120 134 152 189 805 882 545 298 212 132 99 110
30 120   153 192 834 862 540 292 210 131 100 111
31 120   152   851   525 284   126   111