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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.


Montezuma County, Colorado
Hydrologic Unit Code 140300020204
Latitude  37°38'20", Longitude 108°03'35" NAD27
Drainage area 106.0  square miles
Gage datum 8,427.41 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 1951-10-01 -> 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 19 18 20 60 245 588 281 95 63 49 34 23
2 18 17 21 60 260 594 262 94 58 48 34 23
3 18 17 21 60 275 612 243 91 54 49 33 23
4 18 17 21 62 291 618 223 87 53 48 32 22
5 18 17 21 66 304 630 208 84 57 50 32 22
6 18 18 22 73 322 645 203 91 70 54 32 22
7 18 18 22 81 332 643 193 88 60 60 31 22
8 18 18 22 88 347 629 183 82 57 52 31 22
9 18 18 23 94 349 615 181 76 60 50 30 21
10 18 18 24 99 350 584 170 74 63 48 29 21
11 18 17 26 102 366 555 158 74 62 47 29 21
12 18 17 27 107 382 542 151 73 67 46 30 21
13 18 18 28 111 396 537 142 71 71 45 29 21
14 18 18 30 117 415 540 132 73 64 44 28 21
15 18 18 31 125 440 520 127 69 66 43 28 20
16 18 18 32 132 466 500 121 67 61 44 28 20
17 18 18 35 144 488 482 116 66 57 44 27 20
18 18 18 36 157 493 466 112 65 56 43 26 20
19 18 18 38 161 506 450 111 67 61 47 26 20
20 18 18 38 164 529 437 104 69 58 46 26 20
21 18 18 40 173 552 426 99 68 57 43 27 19
22 18 18 42 184 561 402 98 63 60 41 25 19
23 18 19 44 193 561 381 97 62 62 41 25 19
24 18 19 45 203 551 371 99 75 58 40 25 19
25 18 19 47 207 538 357 109 80 53 39 24 19
26 18 19 49 204 543 351 114 76 51 39 24 19
27 18 19 51 207 568 335 105 71 49 38 23 19
28 18 19 51 215 593 321 98 68 51 38 23 19
29 18 21 52 221 598 309 99 64 53 37 23 19
30 18   54 230 592 291 92 65 51 36 23 19
31 18   57   582   93 67   35   19