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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 06307662 Tongue River at Ashland, MT


Rosebud County, Montana
Hydrologic Unit Code 10090102
Latitude  45°35'51.9", Longitude 106°16'29.8" NAD83
Drainage area 2,900  square miles
Gage datum 2,903 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 2020-10-01 -> 2024-09-30)

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
1 145 146 166 123 337 1,160 1,280 427 377 325 319 201
2 144 150 167 123 336 1,160 1,180 426 371 322 319 199
3 142 151 165 122 346 1,380 1,130 428 367 321 319 198
4 136 151 162 123 356 1,500 1,080 425 371 311 318 200
5 143 151 162 125 359 1,620 1,030 433 381 304 319 208
6 145 152 162 126 367 1,720 1,070 437 362 300 317 207
7 145 151 162 132 379 1,880 1,130 445 357 300 317 204
8 144 150 159 139 376 2,030 1,060 438 353 300 323 205
9 138 150 157 144 390 2,090 1,030 427 362 301 324 203
10 133 154 154 139 404 2,080 981 423 380 303 319 202
11 128 157 151 136 431 2,150 939 425 365 299 321 201
12 128 163 148 134 446 2,310 878 421 361 308 321 195
13 126 160 146 130 476 2,570 805 422 365 312 321 198
14 126 158 144 131 508 2,600 762 434 363 302 325 197
15 131 154 142 135 541 2,480 741 410 362 298 320 191
16 151 149 141 139 583 2,310 715 410 366 296 315 191
17 164 134 132 157 615 2,140 677 409 368 292 307 195
18 160 134 129 189 625 2,070 647 404 365 285 291 187
19 151 145 127 221 668 2,030 614 402 363 288 272 185
20 157 152 126 239 830 1,980 579 403 356 293 247 184
21 158 153 125 263 924 2,030 550 403 355 293 226 187
22 158 153 125 280 951 2,010 522 397 379 293 225 185
23 157 151 124 293 986 1,860 503 405 398 295 223 181
24 157 151 124 309 1,030 1,730 484 400 353 297 221 177
25 155 154 125 316 1,070 1,620 526 396 343 296 215 141
26 154 156 123 320 1,160 1,730 481 405 344 313 223 132
27 150 153 122 323 1,200 1,830 451 412 343 316 220 143
28 153 152 123 326 1,230 1,680 447 403 342 320 219 150
29 151 213 121 326 1,250 1,520 446 396 311 319 218 153
30 149   122 331 1,180 1,390 434 385 328 319 204 150
31 147   122   1,140   433 384   319   146