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USGS Daily Statistics for the Nation

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 07135500 ARKANSAS RIVER AT HOLLY, CO.


Prowers County, Colorado
Hydrologic Unit Code 11020009
Latitude  38°02'37", Longitude 102°07'09" NAD27
Drainage area 25,073  square miles
Contributing drainage area 23,425  square miles
Gage datum 3,377.95 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 1909-10-01 -> 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
1 177 195 136 111 567 726 338 1,080 245 116 146 147
2 185 195 143 101 988 941 267 808 210 123 151 150
3 188 197 150 100 745 788 232 977 184 121 145 147
4 186 186 169 115 616 826 247 1,090 373 170 134 139
5 198 190 161 116 549 2,130 281 829 445 140 141 159
6 195 197 151 118 511 2,000 286 823 328 243 136 161
7 183 203 148 110 408 1,310 237 622 437 176 128 166
8 169 193 140 122 369 1,020 277 1,210 396 148 130 166
9 178 191 139 120 454 939 250 1,050 399 115 140 165
10 183 191 131 135 422 718 234 706 263 173 140 162
11 198 194 131 131 338 676 235 645 198 220 165 162
12 192 197 133 140 400 682 344 396 277 211 154 158
13 194 198 143 157 327 568 289 383 275 141 147 156
14 184 204 171 150 290 634 460 435 211 136 144 157
15 189 189 155 172 923 632 354 396 184 128 149 160
16 183 197 146 194 413 826 277 632 236 151 149 158
17 182 187 147 203 266 850 310 601 234 147 143 175
18 183 178 131 255 242 921 338 533 171 145 142 167
19 189 176 126 209 234 760 887 512 194 188 143 165
20 186 166 140 251 332 698 675 537 206 230 137 167
21 190 156 133 401 234 770 743 445 154 162 124 169
22 193 147 123 468 404 678 734 492 132 134 134 165
23 199 153 140 408 591 565 808 798 117 119 130 157
24 202 156 130 429 392 563 806 590 154 141 129 158
25 207 153 124 774 447 545 544 692 157 216 137 162
26 204 148 121 933 371 491 407 442 126 205 135 160
27 204 135 119 809 430 435 516 408 143 204 145 158
28 206 131 113 654 528 460 528 537 122 183 145 159
29 205 151 105 561 524 362 613 446 105 172 145 159
30 197   125 463 892 462 775 447 113 135 137 164
31 196   118   771   750 301   138   179