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USGS Surface-Water Daily Statistics for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.


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 12324200 Clark Fork at Deer Lodge MT


Powell County, Montana
Hydrologic Unit Code 17010201
Latitude  46°23'51.54", Longitude 112°44'33.14" NAD83
Drainage area 1,001  square miles
Gage datum 4,502.2 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 1978-10-01 -> 2021-09-30)

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
1 227 222 231 263 324 574 425 117 139 204 252 240
2 224 223 232 265 321 578 406 115 139 206 254 242
3 223 217 234 266 323 575 390 110 137 208 258 243
4 221 214 237 265 328 575 381 107 137 214 260 243
5 226 214 237 268 324 574 362 108 139 221 260 234
6 224 216 253 275 321 607 344 105 143 223 263 232
7 227 222 264 277 330 631 326 104 146 223 263 226
8 232 234 259 280 332 633 311 103 150 227 265 223
9 227 237 268 283 337 620 298 100 156 227 266 222
10 222 229 276 281 345 593 296 99 158 229 260 223
11 219 224 280 280 353 588 289 101 160 233 260 225
12 216 226 281 283 345 571 273 104 165 235 260 226
13 217 235 280 283 345 564 263 103 165 236 261 227
14 217 241 274 286 346 573 256 104 166 239 258 225
15 216 244 273 284 352 563 243 103 169 244 254 223
16 213 247 273 277 370 572 226 105 170 248 256 219
17 218 249 273 274 397 599 213 106 170 250 258 220
18 222 244 269 278 415 601 207 106 173 251 260 215
19 226 243 265 287 428 593 198 109 176 252 259 212
20 223 247 261 292 442 585 194 107 182 253 259 214
21 218 255 259 298 452 575 181 111 183 253 255 214
22 217 248 264 302 488 568 169 115 182 255 251 215
23 218 242 263 310 502 554 161 121 184 254 246 212
24 218 258 262 321 503 533 152 125 184 253 245 211
25 220 261 263 325 520 506 145 127 185 254 244 210
26 220 241 269 323 537 486 140 128 186 255 243 208
27 225 233 274 320 545 468 138 130 190 257 242 207
28 219 232 268 317 552 450 134 129 195 256 243 209
29 216 246 264 315 555 439 131 129 196 257 243 211
30 220   261 320 562 432 125 130 198 257 240 215
31 224   263   571   120 133   255   217