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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 09165000 DOLORES RIVER BELOW RICO, CO.


Dolores County, Colorado
Hydrologic Unit Code 14030002
Latitude  37°38'20", Longitude 108°03'35" NAD27
Drainage area 106  square miles
Gage datum 8,422.23 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 1951-10-01 -> 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 19 18 20 60 248 591 285 97 64 49 34 23
2 18 18 21 60 262 597 266 96 58 48 34 23
3 18 17 21 61 277 615 247 93 55 49 33 23
4 18 17 21 63 293 621 227 89 53 48 32 22
5 18 17 21 67 307 632 211 86 57 51 32 22
6 18 18 22 74 325 649 207 92 71 55 32 22
7 19 18 22 82 337 648 196 89 60 61 31 22
8 19 18 22 90 352 634 187 83 58 53 31 22
9 18 18 23 96 354 620 184 77 60 50 30 21
10 18 18 24 100 355 590 173 74 64 49 29 21
11 18 17 26 103 370 561 161 74 62 47 29 21
12 18 18 27 106 386 548 154 73 68 46 30 21
13 18 18 29 110 398 543 144 72 72 45 29 21
14 18 18 30 116 418 547 134 74 64 44 28 21
15 18 18 31 124 445 528 129 70 66 43 28 20
16 18 18 33 131 471 508 123 67 61 44 28 20
17 18 18 35 143 492 490 118 67 57 45 27 20
18 18 18 36 157 497 475 114 65 56 44 26 20
19 18 18 38 162 510 458 113 68 61 47 26 20
20 18 18 39 165 535 445 106 70 58 46 26 20
21 18 18 40 174 559 430 101 69 58 43 27 19
22 18 18 43 185 569 408 100 64 60 42 25 19
23 18 19 44 194 567 388 99 63 63 41 25 19
24 18 19 45 202 555 377 101 75 58 40 25 19
25 18 19 47 205 542 363 111 80 53 39 24 19
26 18 19 49 203 548 357 116 75 51 39 24 19
27 18 19 51 207 574 341 107 71 50 38 24 19
28 18 19 51 216 599 326 100 68 52 38 23 20
29 18 21 52 223 603 314 101 64 54 37 23 19
30 18   55 233 596 296 93 65 52 36 23 19
31 18   58   585   95 67   35   19