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USGS Daily Statistics for the Nation

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 06020600 Ruby River below reservoir near Alder, MT


Madison County, Montana
Hydrologic Unit Code 10020003
Latitude  45°14'30.73", Longitude 112°06'40.46" NAD83
Drainage area 595  square miles
Gage datum 5,286.6 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 54 - 55 years of record in, ft3/s   (Calculation Period 1962-10-01 -> 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 52 46 43 65 159 599 418 356 299 156 77 60
2 52 45 44 66 172 596 406 358 293 147 77 59
3 52 45 45 65 183 595 391 361 283 145 75 57
4 52 45 45 67 196 603 374 362 276 142 74 57
5 51 46 45 67 209 619 362 363 276 140 72 57
6 51 45 47 67 227 630 353 367 276 136 72 58
7 51 45 48 68 252 628 350 367 275 132 72 58
8 51 45 49 68 278 626 349 359 274 129 73 57
9 51 45 50 69 297 620 346 356 271 127 73 57
10 51 44 52 69 309 606 341 357 269 120 72 56
11 51 44 52 71 314 591 337 355 265 116 72 56
12 50 44 52 71 316 579 331 352 257 114 71 55
13 50 44 52 73 334 571 329 350 250 113 69 55
14 50 43 52 74 362 577 331 351 242 109 67 54
15 49 43 51 76 397 578 332 352 239 105 71 54
16 49 43 51 82 433 573 329 351 238 103 71 53
17 49 43 52 86 461 577 327 348 234 101 71 53
18 48 43 53 87 475 563 331 344 228 98 70 54
19 49 43 53 90 493 544 329 342 228 98 69 54
20 49 44 55 92 520 536 332 337 225 97 69 54
21 49 44 56 95 555 529 333 328 222 95 69 53
22 48 43 57 100 570 523 336 326 217 89 68 53
23 47 43 57 107 572 515 339 324 210 86 67 53
24 48 43 58 115 574 510 342 325 204 85 67 53
25 48 43 60 120 595 506 344 332 199 84 67 53
26 47 43 60 126 613 499 345 329 196 83 67 53
27 47 43 61 134 615 487 346 322 192 81 67 52
28 46 44 62 139 609 477 349 319 189 79 66 52
29 46 43 62 144 609 462 353 317 186 78 65 52
30 46   62 150 606 443 353 310 178 77 62 52
31 46   63   604   355 303   76   52