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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 8 - 9 years of record in, ft3/s   (Calculation Period 2008-10-01 -> 2018-09-30)

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
1 222 241 244 299 334 660 561 158 149 202 295 275
2 226 232 249 297 318 685 536 156 147 206 299 279
3 227 235 257 295 313 721 511 150 144 210 293 274
4 223 248 271 292 317 712 492 144 143 221 294 272
5 228 251 282 292 314 718 476 142 148 237 296 259
6 240 252 314 293 314 768 462 143 157 240 294 253
7 247 247 298 296 317 808 444 151 156 238 291 243
8 245 247 291 298 321 853 422 151 155 241 292 237
9 252 266 297 306 323 852 395 148 160 244 294 237
10 242 271 325 314 329 847 369 145 173 245 290 244
11 234 263 335 313 318 812 354 146 173 248 289 255
12 240 263 321 315 313 750 341 146 170 252 288 261
13 235 278 310 321 326 790 330 146 168 258 283 266
14 237 277 305 333 338 859 352 151 168 260 282 261
15 234 284 302 331 345 833 367 157 175 261 281 261
16 241 289 315 316 363 845 344 161 184 266 278 246
17 257 283 319 301 411 877 321 159 187 273 280 248
18 272 277 316 300 430 871 300 153 186 270 285 255
19 275 271 313 300 443 817 279 144 187 268 281 264
20 268 267 312 302 469 764 260 136 187 277 280 262
21 256 262 307 307 476 761 244 133 187 278 279 264
22 262 271 317 328 479 741 229 133 183 287 272 262
23 256 268 309 356 508 720 213 142 183 286 271 257
24 252 255 299 365 570 680 201 169 183 287 265 263
25 267 246 294 371 667 669 189 165 183 289 266 255
26 269 240 289 382 667 679 182 160 185 290 261 252
27 265 236 288 397 674 658 189 153 186 289 267 245
28 256 239 287 380 684 625 192 145 187 288 288 243
29 266 274 286 360 689 582 182 141 189 290 290 244
30 270   287 343 682 560 169 142 197 292 280 235
31 253   293   674   158 144   299   231