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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 09073300 ROARING FORK RIVER AB DIFFICULT C NR ASPEN, CO.


Pitkin County, Colorado
Hydrologic Unit Code 14010004
Latitude  39°08'28", Longitude 106°46'25" NAD27
Drainage area 75.8  square miles
Gage datum 8,120.00 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 1979-10-01 -> 2023-09-30)

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 14 13 12 18 52 212 241 68 37 30 20 16
2 14 12 12 18 54 214 223 66 37 29 19 16
3 13 13 12 18 56 220 204 66 35 29 20 16
4 13 12 12 18 58 237 179 65 36 28 20 15
5 14 12 12 19 61 266 178 67 36 28 20 15
6 13 12 12 19 66 287 176 66 37 27 20 15
7 13 12 12 20 70 306 167 60 36 27 19 15
8 13 12 13 21 72 322 182 58 35 27 20 15
9 13 12 13 22 75 315 188 53 35 27 19 15
10 13 12 13 23 79 308 179 52 35 28 19 15
11 13 12 13 24 83 291 165 52 35 28 19 15
12 13 12 13 24 87 291 152 53 35 27 19 15
13 13 12 13 25 93 302 137 51 35 27 18 15
14 13 12 13 26 102 322 132 49 34 26 18 15
15 13 12 13 27 112 341 127 49 34 26 18 14
16 13 12 14 28 121 344 126 47 33 26 18 15
17 13 12 14 30 127 364 124 46 34 25 18 15
18 12 12 14 31 127 364 110 45 34 24 17 14
19 13 12 15 33 134 356 104 43 34 25 17 14
20 13 12 15 33 144 364 105 42 34 24 17 14
21 13 12 15 35 155 366 100 42 34 23 17 14
22 12 12 16 37 161 346 96 43 34 23 17 14
23 12 12 16 38 166 326 90 41 33 23 17 14
24 12 12 16 39 172 329 87 39 34 22 16 14
25 13 12 16 40 174 323 87 40 34 22 17 14
26 13 12 16 42 176 315 83 40 32 22 17 14
27 13 12 17 43 177 295 78 39 30 22 16 14
28 12 12 17 45 187 280 75 37 31 21 16 14
29 13 13 17 47 215 271 78 37 31 21 16 14
30 12   17 50 214 256 76 37 30 20 16 14
31 12   17   205   73 36   20   14