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USGS Daily Statistics for Colorado

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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 -> 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 13 12 12 17 52 209 237 68 36 29 19 15
2 13 12 12 18 54 211 222 66 36 28 19 15
3 13 12 12 18 56 217 202 65 35 29 19 15
4 13 12 12 18 58 234 177 65 35 28 19 15
5 13 12 12 18 61 261 176 66 36 27 19 15
6 13 12 12 19 66 283 174 65 36 26 19 15
7 13 12 12 20 69 304 165 59 35 26 19 15
8 13 12 12 21 71 321 179 57 35 27 19 15
9 13 12 12 22 74 316 185 52 34 27 19 15
10 13 12 12 23 78 307 176 52 34 27 19 15
11 13 12 13 23 83 291 163 52 34 27 19 15
12 13 12 13 24 86 292 151 53 34 27 18 15
13 12 12 13 25 91 301 136 50 34 26 18 14
14 13 12 13 27 100 318 130 49 33 26 17 15
15 13 12 13 28 110 335 126 49 33 25 17 14
16 12 12 13 28 120 338 125 46 33 25 17 14
17 12 12 14 30 126 357 123 46 33 25 17 14
18 12 12 14 31 127 356 109 44 33 24 17 14
19 12 12 14 33 133 351 103 43 33 24 17 14
20 12 12 14 33 143 366 104 42 33 23 17 14
21 12 12 15 35 154 369 99 42 34 23 17 14
22 12 12 16 37 159 350 95 43 33 22 17 14
23 12 12 16 38 163 330 89 41 33 22 16 14
24 12 12 16 40 170 330 86 39 34 22 16 14
25 12 12 16 40 171 323 86 40 33 22 16 14
26 12 12 16 42 174 316 82 40 32 21 16 14
27 12 12 16 43 175 295 77 39 30 21 16 14
28 12 12 16 44 185 279 74 37 30 21 16 14
29 12 12 17 47 212 266 77 37 30 20 16 14
30 12   17 49 212 251 76 36 30 20 15 14
31 12   17   203   73 36   20   13