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USGS Daily Statistics for Wyoming

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Questions or concerns about USGS data and data products in Wyoming and Montana 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 06207500 Clarks Fork Yellowstone River nr Belfry MT


Carbon County, Montana
Hydrologic Unit Code 10070006
Latitude  45°00'35.68", Longitude 109°03'55.32" NAD83
Drainage area 1,153  square miles
Gage datum 3,986.24 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 1920-10-01 -> 2025-09-30)

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
1 241 224 220 261 815 3,770 3,600 982 346 292 289 297
2 242 225 217 265 849 3,770 3,530 937 333 284 287 301
3 242 228 215 266 899 3,860 3,410 893 333 279 288 298
4 243 228 213 267 965 4,050 3,340 859 324 284 296 294
5 244 228 212 274 1,030 4,320 3,250 820 310 277 298 288
6 240 226 219 282 1,110 4,600 3,160 783 300 277 300 282
7 239 225 220 296 1,190 4,640 3,060 740 301 277 303 281
8 241 226 220 303 1,270 4,580 2,910 698 301 286 308 278
9 239 227 222 311 1,330 4,520 2,800 675 300 280 312 276
10 237 232 222 323 1,370 4,420 2,700 644 297 277 310 274
11 236 225 222 327 1,430 4,320 2,620 629 304 281 306 279
12 236 226 222 339 1,490 4,260 2,530 611 299 284 302 277
13 239 232 222 356 1,560 4,400 2,420 591 300 285 306 271
14 239 230 223 377 1,680 4,440 2,290 571 293 281 312 272
15 238 228 223 398 1,810 4,450 2,200 555 298 283 312 270
16 236 228 225 404 1,970 4,440 2,100 529 294 287 312 263
17 230 229 230 423 2,160 4,460 1,980 508 283 286 315 263
18 232 226 231 435 2,290 4,340 1,870 487 283 288 315 262
19 233 226 231 460 2,390 4,290 1,780 474 310 288 311 263
20 233 225 235 478 2,540 4,230 1,710 474 296 288 309 262
21 233 225 236 502 2,740 4,180 1,620 469 301 287 306 260
22 235 224 239 538 2,830 4,200 1,530 464 295 283 302 261
23 232 221 242 582 2,870 4,200 1,450 455 289 282 302 253
24 231 219 247 592 2,990 4,210 1,400 435 285 280 311 251
25 230 221 246 616 3,090 4,160 1,340 414 279 277 316 250
26 229 220 246 641 3,220 4,080 1,280 408 272 279 311 249
27 229 223 247 652 3,340 4,020 1,220 395 275 282 303 245
28 229 223 247 688 3,510 3,860 1,160 380 302 279 304 245
29 228 233 248 726 3,680 3,740 1,110 367 283 282 302 245
30 229   250 763 3,770 3,670 1,090 358 285 283 300 245
31 228   254   3,780   1,040 354   282   244