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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 -> 2024-09-30)

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 13 12 12 17 52 209 238 68 36 30 20 15
2 13 12 12 18 54 211 221 66 36 29 19 15
3 13 12 12 18 56 217 202 66 35 29 19 15
4 13 12 12 18 58 234 177 65 36 28 19 15
5 13 12 12 18 61 262 176 67 36 27 19 15
6 13 12 12 19 66 283 174 65 36 27 19 15
7 13 12 12 20 69 303 165 60 35 26 19 15
8 13 12 12 21 71 318 180 58 35 27 19 15
9 13 12 12 22 74 312 186 53 34 27 19 15
10 13 12 12 23 78 304 176 52 35 27 19 15
11 13 12 13 23 83 288 163 52 34 27 19 15
12 13 12 13 24 86 288 151 53 34 27 18 15
13 12 12 13 25 91 298 136 50 35 26 18 14
14 13 12 13 27 100 317 130 49 34 26 18 15
15 13 12 13 28 110 336 126 49 33 26 17 14
16 12 12 13 28 120 339 125 47 33 25 17 14
17 12 12 14 30 126 358 123 46 34 25 17 14
18 12 12 14 31 127 359 109 45 34 24 17 14
19 12 12 14 33 133 354 103 43 33 24 17 14
20 12 12 14 33 143 369 105 42 34 23 17 14
21 12 12 15 35 154 372 99 42 34 23 17 14
22 12 12 16 37 159 352 95 42 33 22 17 14
23 12 12 16 38 163 333 90 41 33 22 16 14
24 12 12 16 40 170 333 87 39 34 22 16 14
25 12 12 16 40 171 324 86 40 34 22 16 14
26 12 12 16 42 174 318 82 40 32 21 16 14
27 12 12 16 43 175 297 77 39 30 21 16 14
28 12 12 16 44 185 280 74 37 30 21 16 14
29 12 12 17 47 212 267 78 37 31 20 16 14
30 12   17 49 212 252 76 37 30 20 15 14
31 12   17   203   73 36   20   13