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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 09073400 ROARING FORK RIVER NEAR ASPEN, CO.


Pitkin County, Colorado
Hydrologic Unit Code 14010004
Latitude  39°10'48", Longitude 106°48'05" NAD27
Drainage area 106  square miles
Gage datum 8,019.66 feet above NAVD88
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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 1964-10-01 -> 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 25 23 23 31 81 321 322 88 49 44 34 29
2 25 23 23 31 86 327 301 84 49 43 34 29
3 25 23 23 31 91 340 279 83 47 44 33 29
4 25 23 23 31 97 352 248 82 47 43 33 28
5 25 23 23 32 101 377 242 83 47 43 33 28
6 25 23 23 33 106 397 237 81 49 42 33 28
7 25 23 24 35 111 413 225 76 48 42 33 28
8 25 23 24 36 117 421 229 73 48 42 33 28
9 25 23 24 38 122 417 233 69 48 42 33 28
10 25 23 24 39 126 409 227 68 48 42 32 28
11 25 23 24 40 130 395 207 67 47 43 32 28
12 25 23 24 42 137 392 203 67 48 42 32 28
13 25 23 24 43 145 393 190 66 48 41 31 27
14 25 23 24 44 155 411 174 64 47 41 32 28
15 25 23 25 46 164 424 165 64 47 40 31 27
16 24 23 25 47 178 421 162 61 47 41 31 27
17 24 23 26 50 194 443 160 59 48 40 31 27
18 24 23 26 52 202 444 146 59 47 40 31 27
19 24 23 26 52 215 438 141 57 47 39 30 27
20 24 23 27 53 228 445 135 57 47 39 30 26
21 24 23 27 55 239 459 126 56 48 38 30 26
22 24 23 28 58 247 447 120 57 48 37 30 26
23 24 23 28 60 255 415 115 55 47 37 30 26
24 24 23 28 63 260 404 112 54 47 37 30 26
25 24 24 29 65 260 397 110 54 47 36 30 26
26 24 24 29 67 269 388 106 53 46 36 29 26
27 24 24 30 68 277 365 101 52 45 36 29 26
28 23 23 30 69 292 348 96 50 45 36 29 26
29 23 23 30 71 313 333 97 49 46 35 29 26
30 23   30 76 319 327 94 49 45 35 29 26
31 23   30   314   91 48   35   26