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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 -> 2021-09-30)

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 81 184 373 913 801 276 144 123 112 89
2 78 78 81 195 383 948 787 257 128 124 109 89
3 78 79 82 199 387 926 735 241 124 123 103 86
4 78 78 81 202 408 922 681 228 123 122 106 85
5 78 80 82 205 432 948 633 218 124 127 106 83
6 79 79 82 211 451 962 596 218 123 132 105 83
7 79 79 83 227 471 978 571 211 123 129 103 82
8 79 79 84 250 498 945 576 200 123 120 104 82
9 80 79 86 268 517 932 574 188 120 117 103 82
10 79 79 85 267 538 898 580 186 122 116 102 81
11 79 79 87 257 558 885 588 195 119 111 105 80
12 79 79 89 260 540 877 573 195 120 107 105 80
13 79 79 92 270 528 889 554 189 120 109 105 80
14 79 80 94 275 539 890 529 182 129 107 107 81
15 79 79 95 276 557 879 509 177 128 109 102 81
16 79 79 100 271 586 885 492 169 126 106 98 80
17 79 79 103 291 609 902 478 169 122 104 103 80
18 79 78 107 299 628 947 448 169 121 104 101 80
19 79 79 109 298 641 966 439 170 119 105 100 80
20 79 79 116 295 678 999 428 173 114 104 100 79
21 79 79 122 314 672 995 421 172 114 104 100 81
22 78 81 131 320 688 1,020 408 167 116 106 96 79
23 79 79 140 323 716 1,030 384 165 119 107 98 80
24 78 80 147 347 719 952 370 164 116 106 92 80
25 79 80 146 356 758 922 352 160 116 109 93 79
26 79 80 154 352 720 866 326 153 116 109 94 78
27 79 80 159 349 722 829 301 151 117 106 92 79
28 79 80 163 342 750 807 290 150 123 107 90 78
29 78 80 169 351 819 786 290 147 125 107 91 79
30 79   171 357 863 752 289 143 126 104 89 78
31 78   177   894   284 142   110   79