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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 12324400 Clark Fork ab Little Blackfoot R nr Garrison MT


Powell County, Montana
Hydrologic Unit Code 17010201
Latitude  46°30'39.28", Longitude 112°47'22.87" NAD83
Drainage area 1,130  square miles
Gage datum 4,350 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 9 - 10 years of record in, ft3/s   (Calculation Period 2008-10-01 -> 2019-09-30)

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
1 232 242 246 306 394 805 645 165 158 206 292 279
2 236 234 249 306 374 837 606 163 154 211 297 283
3 238 241 255 301 363 850 571 157 150 217 295 278
4 234 259 268 298 364 813 550 151 150 228 298 276
5 238 267 278 299 363 809 528 149 154 245 299 261
6 249 264 307 299 370 854 506 151 160 251 296 251
7 256 258 292 307 396 884 482 156 159 250 290 242
8 254 264 286 313 413 921 459 156 159 252 291 237
9 261 283 297 319 424 910 431 153 163 256 293 236
10 252 276 329 325 452 911 402 149 175 260 291 241
11 245 269 333 327 452 882 383 150 174 263 290 253
12 253 265 318 332 441 812 370 149 172 266 289 260
13 248 277 309 341 437 825 356 148 171 270 285 264
14 248 275 308 349 436 873 372 153 171 274 286 260
15 242 282 312 345 436 843 381 158 177 274 284 262
16 244 286 331 331 455 860 357 162 187 277 281 250
17 258 280 334 321 507 940 333 160 189 283 283 252
18 272 275 325 317 538 941 316 154 188 280 286 259
19 281 264 320 315 555 944 293 148 190 277 281 266
20 271 259 319 315 576 933 272 141 191 284 281 265
21 259 257 313 322 578 921 255 141 191 286 283 265
22 263 266 327 344 585 901 239 140 188 293 277 259
23 258 266 344 373 620 864 224 147 187 292 280 251
24 255 255 332 382 681 821 210 169 188 293 277 254
25 268 246 322 388 769 804 198 167 185 289 278 251
26 269 242 312 398 773 800 190 163 187 290 273 251
27 263 240 308 417 783 767 195 158 187 289 277 248
28 258 242 312 411 794 725 198 155 188 288 295 249
29 266 274 304 402 799 682 189 153 191 290 296 251
30 273   302 402 790 659 175 153 199 292 284 242
31 255   305   789   165 155   295   240