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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 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 -> 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
1 173 189 201 340 914 2,070 1,070 405 263 255 242 224
2 175 192 204 344 931 2,040 1,020 391 260 256 243 233
3 173 184 205 339 971 2,040 985 377 254 253 245 231
4 172 177 209 336 1,020 2,030 952 365 250 253 245 221
5 173 179 210 347 1,070 2,040 914 358 249 252 244 210
6 174 176 211 369 1,120 2,070 879 350 250 250 243 200
7 177 184 213 384 1,190 2,060 847 342 251 251 242 197
8 185 199 216 406 1,240 2,000 814 339 255 254 255 194
9 186 205 217 428 1,280 1,930 781 329 263 250 251 192
10 184 204 228 444 1,330 1,850 765 320 261 248 241 197
11 178 194 241 461 1,400 1,800 748 316 261 249 237 206
12 176 190 239 482 1,390 1,760 716 312 268 250 232 207
13 176 194 246 492 1,410 1,770 695 307 273 251 234 204
14 182 197 246 504 1,460 1,820 681 302 266 255 235 207
15 183 196 247 516 1,560 1,800 655 297 262 256 228 205
16 202 196 261 510 1,670 1,780 638 293 261 256 228 201
17 203 203 272 516 1,740 1,770 616 289 261 258 231 192
18 199 198 274 538 1,830 1,710 599 281 262 258 231 180
19 198 196 281 567 1,890 1,670 578 278 265 255 228 177
20 196 198 282 601 1,940 1,650 557 279 267 255 225 179
21 191 200 286 648 1,950 1,590 537 284 266 252 221 183
22 188 201 292 701 1,990 1,530 517 282 263 253 217 186
23 188 201 299 769 1,990 1,460 500 284 260 251 213 181
24 189 196 300 816 2,020 1,410 483 289 259 247 218 178
25 187 201 295 846 2,090 1,350 470 285 257 245 220 179
26 184 203 299 841 2,090 1,300 458 277 255 246 219 180
27 185 198 306 852 2,110 1,230 450 273 256 246 215 181
28 184 196 305 863 2,100 1,170 437 269 255 245 214 181
29 181 204 304 874 2,080 1,140 425 264 253 245 211 177
30 181   307 895 2,080 1,110 417 259 252 240 215 176
31 180   321   2,070   413 260   240   175