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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 -> 2025-09-30)

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
1 379 367 274 287 237 232 263 199 223 214 370 445
2 377 365 273 273 238 232 258 195 224 214 373 442
3 378 362 270 265 237 225 246 198 216 209 374 439
4 375 362 269 265 233 218 244 202 206 206 383 431
5 372 372 270 279 233 207 237 195 205 206 390 421
6 368 372 270 282 238 211 228 209 214 195 420 417
7 369 375 274 285 231 221 220 208 218 203 431 419
8 362 374 275 286 222 243 211 205 216 203 444 410
9 359 369 276 279 219 260 207 203 216 204 444 409
10 361 372 270 280 218 282 200 199 212 207 442 412
11 362 396 270 290 208 277 197 197 216 210 444 415
12 362 414 282 290 201 276 195 194 214 212 443 417
13 361 398 286 284 195 280 190 194 212 212 440 415
14 364 381 287 275 193 280 190 192 216 219 434 416
15 363 379 295 270 195 275 190 196 221 221 436 419
16 362 378 291 266 201 269 192 198 220 223 440 416
17 362 373 288 258 202 276 189 198 219 224 440 413
18 360 369 268 252 200 267 184 197 222 223 446 412
19 359 369 278 254 197 263 181 204 222 230 457 407
20 362 372 290 264 200 264 186 204 228 236 462 406
21 360 374 288 259 215 261 185 204 228 241 468 403
22 360 359 309 248 218 256 194 203 227 239 457 397
23 364 359 310 242 214 251 204 205 225 247 451 392
24 365 359 300 240 221 248 201 209 225 258 455 389
25 364 358 297 243 222 252 201 212 222 260 456 389
26 368 357 306 236 216 256 202 212 221 257 449 387
27 366 347 301 237 212 271 200 213 219 253 448 391
28 358 344 295 235 209 278 203 211 220 259 447 393
29 353 369 303 233 220 275 202 213 220 261 445 395
30 355   307 233 230 268 203 214 202 261 445 387
31 357   327   230   197 218   263   383