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USGS 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 06017000 Beaverhead River at Dillon MT


Beaverhead County, Montana
Hydrologic Unit Code 10020002
Latitude  45°13'06.18", Longitude 112°39'19.20" NAD83
Drainage area 2,892  square miles
Gage datum 5,100 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 1950-10-01 -> 2023-09-30)

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
1 379 367 274 287 238 235 265 200 226 220 370 445
2 377 365 273 273 240 235 261 197 228 220 373 442
3 378 362 270 264 240 228 248 199 219 215 374 439
4 375 362 269 264 236 220 246 203 208 213 383 431
5 372 372 270 278 236 210 239 196 208 212 390 421
6 368 372 270 281 241 212 230 210 219 200 420 417
7 369 375 274 283 234 223 222 209 222 207 431 419
8 362 374 275 284 225 245 213 206 221 207 444 410
9 359 369 276 279 222 262 208 204 221 208 444 409
10 361 372 270 280 221 285 201 199 218 211 442 412
11 362 396 270 287 211 280 198 198 222 215 444 415
12 362 414 282 285 203 280 196 196 220 216 443 417
13 361 398 286 273 197 285 191 195 218 217 440 415
14 364 381 287 263 195 285 191 194 222 224 434 416
15 363 379 295 258 197 279 191 198 227 226 436 419
16 362 378 291 255 204 273 193 200 226 228 440 416
17 362 373 288 253 204 279 190 201 226 228 440 413
18 360 369 268 247 203 271 184 201 228 225 446 412
19 359 369 278 251 199 266 181 207 229 233 457 407
20 362 372 290 261 202 268 187 207 234 240 462 406
21 360 374 288 257 217 265 186 207 235 244 468 403
22 360 359 309 246 220 261 195 206 234 242 457 397
23 364 359 310 243 216 255 205 208 232 250 451 392
24 365 359 300 241 223 252 201 212 232 261 455 389
25 364 358 297 244 224 255 202 216 229 263 456 389
26 368 357 306 236 217 258 202 215 228 260 449 387
27 366 347 301 237 214 274 200 216 225 256 448 391
28 358 344 295 234 211 280 204 215 226 262 447 393
29 353 369 303 233 223 277 203 216 226 266 445 395
30 355   307 234 233 270 204 217 207 265 445 387
31 357   327   233   199 221   266   383