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USGS Daily Statistics for Montana

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Questions or concerns about USGS streamflow data in Montana and Wyoming can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).

Updated September 18, 2020 - USGS water-resources monitoring activities were restored effective August 17, 2020 at the following site:
  • 06088500 Muddy Creek near Vaughn, Montana (POR: 82 years)

Updated June 11, 2020 - USGS water-resources monitoring activities will be restored at the following sites:
  • 12323600 Silver Bow Creek at Opportunity, Montana (POR: 31 years)
  • 12323750 Silver Bow Creek at Warm Springs, Montana (POR: 35 years)


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 06306300 Tongue River at State Line nr Decker MT


Big Horn County, Montana
Hydrologic Unit Code 10090101
Latitude  45°00'32.89", Longitude 106°50'09.40" NAD83
Drainage area 1,451  square miles
Gage datum 3,429 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 1960-10-01 -> 2020-09-30)

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
1 158 180 263 288 551 1,770 960 198 157 247 243 191
2 159 178 260 307 570 1,760 912 191 161 247 238 188
3 157 175 265 295 577 1,740 856 188 170 248 233 188
4 157 175 277 275 592 1,780 806 192 168 249 232 192
5 158 179 299 268 628 1,830 763 186 171 250 234 184
6 162 189 300 281 686 1,870 708 181 170 247 234 176
7 165 190 297 288 756 1,910 663 173 171 252 230 171
8 166 203 299 288 822 1,960 614 167 176 260 227 169
9 166 195 300 287 833 1,970 570 160 181 257 227 168
10 168 191 299 292 857 1,950 530 158 184 253 222 172
11 166 189 301 298 897 1,860 497 161 188 253 219 177
12 163 200 331 310 919 1,800 478 159 194 250 216 179
13 166 215 351 306 884 1,740 451 158 199 247 221 176
14 169 237 347 300 920 1,730 423 159 210 246 221 173
15 173 242 340 302 959 1,820 391 164 215 248 216 172
16 178 231 325 311 1,000 1,880 360 164 221 252 215 171
17 180 224 319 319 1,090 1,870 341 165 223 254 215 170
18 175 217 336 329 1,290 1,780 324 164 220 255 216 167
19 174 216 369 340 1,470 1,660 303 174 224 254 214 165
20 176 216 358 350 1,370 1,580 297 167 227 248 212 164
21 178 218 325 349 1,410 1,510 287 164 234 247 205 164
22 180 211 317 361 1,550 1,470 283 165 236 244 199 163
23 180 221 305 385 1,550 1,450 265 163 240 243 198 163
24 180 218 297 415 1,550 1,390 254 171 241 241 203 166
25 184 228 293 472 1,610 1,330 245 168 249 240 202 168
26 183 245 277 514 1,680 1,270 242 164 245 240 198 166
27 181 258 276 500 1,650 1,210 234 160 244 238 195 166
28 178 253 273 536 1,700 1,140 229 157 247 235 194 165
29 176 385 268 553 1,840 1,080 221 157 248 236 197 164
30 183   258 542 1,900 1,020 211 158 248 235 194 161
31 186   261   1,820   203 156   239   160