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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 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 -> 2021-09-30)

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 1,770 960 197 156 245 243 191
2 159 178 260 307 570 1,760 912 189 160 246 238 187
3 157 175 265 295 577 1,740 856 186 168 246 233 187
4 157 175 277 275 592 1,780 806 190 167 247 231 191
5 158 179 299 268 628 1,830 763 184 170 248 234 184
6 162 189 300 281 686 1,870 708 180 168 246 234 176
7 165 190 297 288 756 1,910 663 172 170 250 230 171
8 166 203 299 288 822 1,960 614 166 175 258 227 169
9 166 195 300 287 833 1,970 570 158 181 255 226 168
10 168 191 299 292 857 1,950 530 157 185 251 221 172
11 166 189 301 298 897 1,860 497 160 188 251 218 176
12 163 200 331 310 919 1,800 478 158 194 249 215 179
13 166 215 351 306 884 1,740 451 157 199 245 219 175
14 169 237 347 300 920 1,730 423 158 209 244 220 172
15 173 242 340 302 959 1,820 391 163 214 247 215 172
16 178 231 325 311 1,000 1,880 360 163 219 250 214 171
17 180 224 319 319 1,090 1,870 341 164 221 253 215 170
18 175 217 336 329 1,290 1,780 324 162 219 254 215 167
19 174 216 369 340 1,470 1,660 303 172 222 254 213 165
20 176 216 358 350 1,370 1,580 294 165 225 248 212 164
21 178 218 325 349 1,410 1,510 284 162 232 248 204 164
22 180 211 317 361 1,550 1,470 280 164 234 245 198 163
23 180 221 305 385 1,550 1,450 262 162 238 244 196 163
24 180 218 297 415 1,550 1,390 251 169 239 241 201 166
25 184 228 293 472 1,610 1,330 242 166 246 239 201 168
26 183 245 277 514 1,680 1,270 239 162 243 240 198 166
27 181 258 276 500 1,650 1,210 231 158 242 238 195 166
28 178 253 273 536 1,700 1,140 226 155 245 235 194 165
29 176 385 268 553 1,840 1,080 219 155 246 236 197 164
30 183   258 542 1,900 1,020 209 157 246 235 193 161
31 186   261   1,820   201 155   239   160