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USGS Daily Statistics for the Nation

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 13075500 PORTNEUF RIVER AT POCATELLO ID


Bannock County, Idaho
Hydrologic Unit Code 17040208
Latitude  42°52'18", Longitude 112°28'05" NAD83
Drainage area 1,256  square miles
Gage datum 4,421.48 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 1896-10-01 -> 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
1 251 271 330 445 543 390 146 81 94 153 222 256
2 253 282 333 452 540 376 139 81 95 157 224 258
3 252 284 337 455 538 367 132 83 96 163 226 259
4 251 276 339 458 539 357 124 82 97 166 229 258
5 250 271 343 464 539 344 120 83 98 167 233 256
6 250 270 345 472 540 334 118 82 97 168 236 254
7 248 271 346 479 545 332 114 80 99 171 237 254
8 250 274 347 482 545 328 110 81 101 174 239 252
9 256 277 355 487 541 323 106 81 104 177 240 251
10 255 285 361 491 539 315 104 80 106 179 241 252
11 255 288 367 494 540 309 101 80 107 182 242 252
12 254 296 373 499 536 297 97 80 110 183 244 254
13 256 307 377 501 525 288 91 81 112 185 246 255
14 260 313 382 503 519 278 90 82 113 188 248 254
15 264 310 383 507 515 276 85 84 115 191 249 252
16 264 311 381 510 513 265 84 85 118 194 248 251
17 263 313 387 515 514 254 81 84 121 195 250 248
18 264 316 392 519 523 246 80 85 124 197 254 244
19 264 320 397 521 520 237 76 87 126 199 256 245
20 267 322 403 524 513 229 76 87 128 200 255 247
21 271 325 411 528 510 221 77 90 132 202 255 250
22 274 327 418 533 509 214 79 92 135 202 255 254
23 271 330 426 540 498 207 80 93 138 205 254 257
24 271 326 432 544 487 202 79 95 140 208 256 256
25 269 327 434 544 474 194 79 94 141 211 256 255
26 266 329 436 543 462 187 78 94 144 212 256 257
27 265 329 434 541 449 179 80 93 146 213 255 256
28 261 328 435 544 438 171 79 91 147 215 254 255
29 257 331 437 547 426 164 80 92 149 218 253 255
30 259   439 546 414 155 80 92 151 219 253 255
31 263   442   401   81 93   221   253