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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 09034250 COLORADO RIVER AT WINDY GAP, NEAR GRANBY, CO.


Grand County, Colorado
Hydrologic Unit Code 14010001
Latitude  40°06'30", Longitude 106°00'13" NAD27
Drainage area 788  square miles
Gage datum 7,790.00 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 37 - 38 years of record in, ft3/s   (Calculation Period 1981-10-01 -> 2019-09-30)

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 78 79 82 188 363 957 818 280 144 125 114 89
2 78 79 82 199 370 989 804 261 128 126 109 89
3 79 79 82 203 376 964 753 244 123 125 103 86
4 79 78 82 206 401 959 693 231 123 124 106 85
5 78 80 83 208 431 989 641 221 123 129 107 84
6 79 79 83 214 449 1,000 605 221 122 135 105 83
7 79 79 84 230 471 1,010 578 214 121 131 103 82
8 79 79 85 253 501 979 583 202 121 122 105 82
9 80 79 87 270 528 965 571 188 118 119 104 82
10 80 80 86 267 553 933 581 187 120 118 103 81
11 79 80 88 258 573 923 597 197 116 113 106 80
12 79 79 90 262 555 917 581 195 118 108 106 80
13 80 80 93 275 545 930 550 189 119 111 106 80
14 80 80 96 282 556 927 513 182 129 109 108 80
15 79 80 96 284 576 914 489 177 128 111 103 81
16 80 80 101 278 605 927 472 170 126 108 98 80
17 80 80 104 299 629 944 462 170 122 106 104 80
18 80 79 108 308 650 991 436 170 121 106 102 80
19 79 80 110 307 665 1,010 431 171 120 106 101 80
20 79 80 118 298 706 1,040 429 175 115 106 101 79
21 79 80 124 318 699 1,040 422 174 115 105 101 81
22 79 82 133 324 717 1,070 410 168 117 108 97 79
23 79 80 143 327 750 1,080 385 166 121 109 99 80
24 78 80 151 349 753 996 373 165 117 107 93 80
25 79 81 149 360 794 961 355 161 117 110 94 79
26 79 80 157 354 757 901 328 154 118 111 95 78
27 79 81 163 342 759 860 301 151 119 107 93 79
28 79 81 167 334 789 838 290 150 125 108 90 78
29 79 80 173 341 864 813 290 146 127 108 92 79
30 80   174 346 911 774 290 142 128 105 90 79
31 78   182   939   286 142   111   79