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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 12304500 Yaak River near Troy MT


Lincoln County, Montana
Hydrologic Unit Code 17010103
Latitude  48°33'42.20", Longitude 115°58'12.57" NAD83
Drainage area 792  square miles
Gage datum 1,839 feet above NGVD29
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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 1956-10-01 -> 2022-09-30)

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
1 248 297 380 1,060 2,740 3,010 866 240 151 162 250 407
2 241 304 371 1,090 2,800 2,940 823 235 152 161 259 390
3 244 299 373 1,140 2,860 2,900 780 231 151 161 268 379
4 242 296 381 1,180 2,890 2,760 738 223 149 159 295 447
5 235 295 390 1,290 2,950 2,670 694 217 148 159 292 420
6 232 296 404 1,400 3,070 2,570 660 213 148 158 279 353
7 239 315 419 1,510 3,160 2,460 631 208 147 156 295 321
8 268 336 436 1,510 3,210 2,370 601 203 143 159 291 296
9 264 397 433 1,570 3,250 2,270 574 198 143 167 289 321
10 277 366 455 1,610 3,310 2,140 556 193 142 169 286 321
11 267 338 488 1,620 3,320 2,020 533 187 143 174 298 331
12 261 322 515 1,660 3,340 1,960 504 186 143 182 309 322
13 270 316 545 1,700 3,390 1,910 492 183 141 183 320 324
14 272 315 553 1,780 3,430 1,850 489 179 142 187 319 323
15 305 318 594 1,800 3,520 1,800 467 178 151 194 348 317
16 409 329 698 1,770 3,660 1,770 439 178 156 194 327 327
17 414 334 710 1,770 3,730 1,740 417 174 148 192 307 316
18 358 333 689 1,830 3,720 1,660 401 172 156 187 301 304
19 328 342 721 1,870 3,650 1,550 387 167 160 184 288 294
20 311 369 728 1,990 3,590 1,460 371 164 161 183 295 285
21 292 394 710 2,120 3,620 1,400 357 163 163 193 308 281
22 282 392 697 2,180 3,650 1,350 341 163 163 198 310 284
23 278 401 723 2,300 3,630 1,280 328 163 160 207 312 275
24 274 378 758 2,520 3,540 1,210 316 165 158 203 363 262
25 274 379 807 2,580 3,470 1,140 307 165 156 218 435 254
26 268 381 835 2,520 3,430 1,090 303 162 156 221 388 271
27 266 375 846 2,490 3,390 1,050 293 158 156 225 350 302
28 267 372 864 2,540 3,290 1,000 280 155 156 232 323 284
29 268 429 895 2,580 3,170 953 267 153 157 230 350 258
30 277   958 2,640 3,150 923 258 150 157 226 384 252
31 289   1,020   3,090   249 149   239   248