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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 water year of record in, ft3/s   (Calculation Period 1981-10-01 -> 2020-09-30)

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 82 186 371 936 830 279 145 124 113 89
2 78 79 82 197 374 968 816 260 128 125 109 89
3 79 79 82 201 379 944 763 243 124 123 103 86
4 79 78 82 204 402 939 705 230 124 123 106 85
5 78 80 82 207 431 969 655 220 124 127 107 83
6 79 79 83 212 450 983 616 220 123 133 105 83
7 79 79 84 228 471 999 591 213 123 130 103 82
8 80 79 85 252 499 966 596 202 123 120 104 82
9 80 80 86 271 522 954 584 189 120 118 103 82
10 80 80 86 268 545 921 590 188 122 116 103 81
11 80 80 88 257 564 911 599 197 118 112 105 80
12 79 79 90 260 545 904 583 197 119 107 105 80
13 80 80 92 272 536 917 564 190 120 110 105 80
14 80 80 95 279 549 916 537 183 129 108 107 81
15 79 80 96 281 568 904 517 178 129 110 102 81
16 80 80 100 275 598 915 500 170 126 107 98 80
17 80 80 103 297 623 931 486 170 123 105 103 81
18 80 79 107 305 643 979 456 170 122 105 101 80
19 79 80 109 304 656 997 446 171 120 106 101 80
20 80 80 117 300 694 1,030 434 174 114 105 100 79
21 79 80 123 320 688 1,030 428 173 115 104 100 81
22 79 82 132 326 706 1,060 414 168 116 107 96 80
23 79 80 142 329 736 1,070 388 166 120 108 98 80
24 79 80 149 352 739 987 375 165 117 107 92 80
25 79 81 148 362 779 954 355 161 117 109 94 79
26 80 80 155 357 742 896 329 154 117 110 94 79
27 80 81 161 352 744 856 304 151 118 106 92 79
28 79 81 165 342 773 835 292 150 124 107 90 78
29 79 80 172 350 847 813 292 147 126 107 92 79
30 80   173 356 892 779 292 143 127 104 89 79
31 79   180   919   287 142   111   79