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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).


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 12334510 Rock Creek near Clinton MT


Missoula County, Montana
Hydrologic Unit Code 17010202
Latitude  46°43'20.41", Longitude 113°40'59.02" NAD83
Drainage area 889  square miles
Gage datum 3,519.46 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 1972-10-01 -> 2018-09-30)

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
1 174 189 203 343 875 2,030 1,050 404 261 252 240 226
2 174 191 206 346 896 2,010 1,000 390 258 253 240 235
3 172 183 206 340 941 2,010 971 375 252 250 240 233
4 171 178 211 336 999 2,010 939 364 248 249 241 222
5 171 180 212 345 1,050 2,030 903 358 247 249 240 211
6 173 177 212 365 1,100 2,060 869 349 249 247 240 201
7 176 185 213 382 1,170 2,050 838 341 249 249 239 199
8 184 200 216 396 1,220 1,990 805 338 252 252 253 195
9 186 208 217 414 1,260 1,930 772 328 258 248 250 192
10 184 207 229 429 1,320 1,850 756 319 256 245 239 198
11 177 196 243 450 1,380 1,810 740 314 257 246 235 206
12 176 191 241 474 1,370 1,770 709 309 265 247 231 207
13 176 194 248 487 1,380 1,780 690 304 270 248 232 204
14 183 197 249 501 1,420 1,830 673 300 264 250 233 207
15 185 196 251 514 1,520 1,810 646 295 260 251 226 205
16 205 197 265 510 1,630 1,800 630 291 260 253 226 201
17 204 204 276 516 1,690 1,780 609 287 259 253 229 191
18 199 199 277 538 1,770 1,710 593 280 260 252 229 179
19 198 198 285 563 1,830 1,670 573 276 263 248 226 175
20 196 200 285 584 1,860 1,660 553 278 265 248 222 177
21 190 203 288 618 1,860 1,590 533 282 263 250 219 181
22 187 203 294 672 1,920 1,530 513 281 261 252 216 185
23 188 202 300 740 1,950 1,470 495 283 258 250 212 180
24 189 197 301 781 1,990 1,420 478 287 257 246 216 176
25 187 202 295 809 2,070 1,350 465 283 255 244 219 177
26 184 205 299 805 2,070 1,300 454 275 253 245 219 180
27 185 200 306 819 2,080 1,240 447 270 253 244 214 181
28 184 198 305 833 2,070 1,170 434 266 252 243 213 181
29 182 205 305 848 2,050 1,120 423 262 250 243 211 177
30 182   308 863 2,050 1,090 414 257 249 240 216 175
31 180   322   2,040   410 258   239   174