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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 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 -> 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
1 173 189 201 343 885 2,040 1,040 403 261 254 242 224
2 175 192 204 346 904 2,020 996 389 258 255 243 233
3 173 184 205 341 946 2,020 965 374 253 252 245 231
4 172 177 209 339 1,000 2,020 935 363 249 252 245 221
5 173 179 210 350 1,050 2,040 898 356 247 252 244 210
6 174 176 211 371 1,100 2,070 864 348 249 249 243 200
7 177 184 212 387 1,180 2,050 834 340 250 251 242 197
8 185 199 215 408 1,230 1,990 802 337 254 254 255 194
9 186 205 216 430 1,270 1,930 770 327 262 250 251 192
10 184 204 227 445 1,330 1,850 754 318 259 247 241 197
11 178 194 241 461 1,390 1,800 737 314 259 248 237 206
12 176 190 239 482 1,380 1,760 706 311 267 249 232 207
13 176 194 246 494 1,400 1,770 687 305 272 250 234 204
14 182 197 247 507 1,450 1,820 672 300 265 251 235 207
15 183 196 249 519 1,550 1,800 647 295 261 252 228 205
16 202 196 263 514 1,660 1,780 630 291 261 254 228 201
17 203 203 274 520 1,730 1,760 609 287 260 255 231 192
18 199 198 275 542 1,820 1,690 592 280 261 253 231 180
19 198 196 283 571 1,870 1,650 572 277 264 250 228 177
20 196 198 283 605 1,880 1,640 551 278 266 249 225 179
21 191 200 287 652 1,880 1,580 532 282 265 252 221 183
22 188 201 293 703 1,930 1,520 512 281 262 253 217 186
23 188 201 301 768 1,950 1,460 494 283 259 251 213 181
24 189 196 302 812 2,000 1,410 477 288 258 247 218 178
25 187 201 296 843 2,070 1,340 464 283 256 245 220 179
26 184 203 301 838 2,070 1,290 453 275 254 246 219 180
27 185 198 308 846 2,090 1,230 446 271 254 246 215 181
28 184 196 307 855 2,080 1,160 433 267 253 245 214 181
29 181 204 306 864 2,060 1,120 421 262 251 245 211 177
30 181   309 877 2,060 1,090 413 258 251 240 215 176
31 180   322   2,050   409 259   240   175