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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 13305000 LEMHI RIVER NR LEMHI ID


Lemhi County, Idaho
Hydrologic Unit Code 17060204
Latitude  44°56'24", Longitude 113°38'21" NAD83
Drainage area 897  square miles
Gage datum 4,899.76 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 1938-10-01 -> 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
1 218 226 234 256 227 463 414 170 126 188 270 240
2 216 224 235 256 224 468 396 166 125 192 269 240
3 215 223 236 252 222 483 387 162 125 195 272 241
4 215 225 235 254 227 509 375 158 126 202 276 236
5 217 223 235 257 225 532 362 155 127 205 276 227
6 218 221 238 260 229 544 352 152 126 210 276 226
7 217 227 239 261 236 552 340 149 126 215 277 228
8 220 231 240 257 239 564 327 145 128 219 281 223
9 223 231 241 258 237 554 318 142 129 223 282 221
10 226 228 249 258 237 540 313 139 129 226 280 222
11 224 227 253 256 240 532 300 136 132 230 278 223
12 224 228 252 257 241 521 284 132 136 234 277 226
13 228 227 252 256 247 527 275 129 136 237 275 225
14 226 229 250 254 259 522 263 128 135 240 271 222
15 225 230 250 254 272 517 251 126 138 243 267 224
16 227 232 255 251 287 527 239 125 140 245 269 224
17 226 232 262 249 300 535 230 124 140 246 269 221
18 225 232 262 247 299 530 226 124 144 248 269 219
19 224 234 263 243 311 513 219 124 149 248 270 218
20 221 236 261 241 320 511 212 124 155 250 269 219
21 220 236 264 241 321 525 208 127 161 250 261 222
22 222 234 267 242 322 526 204 127 163 250 257 222
23 222 230 270 248 336 506 196 128 166 252 253 221
24 225 230 268 252 348 499 191 129 168 257 256 221
25 225 231 266 247 359 488 191 127 170 259 257 221
26 223 230 266 242 369 486 185 127 171 260 251 223
27 222 228 264 240 383 476 182 126 173 262 245 220
28 221 234 260 236 394 463 182 125 175 263 244 217
29 220 240 257 232 405 446 180 124 180 265 241 216
30 220   258 230 428 431 176 123 186 266 239 218
31 223   260   448   173 125   270   219