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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.


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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 06308500 Tongue River at Miles City, MT


Custer County, Montana
Hydrologic Unit Code 10090102
Latitude  46°23'04.54", Longitude 105°50'43.88" NAD83
Drainage area 5,405  square miles
Gage datum 2,351.40 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 1937-10-01 -> 2026-09-30)

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
1 165 187 334 450 423 1,240 971 197 192 207 251 220
2 165 183 326 446 408 1,250 897 188 209 236 250 221
3 166 182 387 472 420 1,290 885 197 201 260 253 216
4 164 186 427 486 431 1,300 930 189 196 226 257 213
5 164 191 436 462 426 1,290 834 180 179 222 260 204
6 166 216 479 418 469 1,320 721 175 178 232 260 202
7 168 217 464 409 525 1,340 661 175 178 234 266 193
8 168 216 446 402 493 1,430 608 169 182 228 267 190
9 170 209 422 401 531 1,450 574 162 188 224 267 189
10 173 201 464 409 552 1,400 544 157 189 231 261 185
11 173 201 457 421 602 1,390 494 154 184 225 257 189
12 186 212 500 419 550 1,410 489 164 187 226 251 184
13 194 229 524 418 580 1,440 455 171 192 227 253 182
14 187 246 499 407 623 1,490 413 175 196 228 257 179
15 181 322 488 407 581 1,580 387 167 215 229 255 180
16 196 332 484 400 602 1,420 359 160 220 232 253 177
17 197 328 496 397 615 1,400 337 175 199 244 257 177
18 189 315 531 397 671 1,430 320 173 190 242 257 175
19 190 316 656 409 701 1,420 324 162 195 271 254 174
20 193 298 705 430 731 1,390 322 156 199 241 252 175
21 192 292 731 419 853 1,390 290 162 197 249 245 176
22 195 279 687 404 881 1,370 276 171 196 266 231 175
23 200 270 628 394 888 1,320 263 187 198 255 223 173
24 206 281 553 430 916 1,290 251 216 196 241 226 172
25 215 300 511 398 971 1,270 247 192 226 235 225 173
26 212 322 488 389 961 1,210 239 177 218 234 221 174
27 205 343 466 384 991 1,230 267 169 206 240 223 171
28 198 333 455 401 1,000 1,180 303 176 205 247 220 170
29 198 381 428 426 1,040 1,120 258 180 205 246 221 168
30 195   466 435 1,120 1,060 233 196 201 249 218 167
31 193   466   1,220   211 180   248   167