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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 07134180 ARKANSAS RIVER NEAR GRANADA, CO.


Prowers County, Colorado
Hydrologic Unit Code 11020009
Latitude  38°05'44", Longitude 102°18'37" NAD27
Drainage area 23,500  square miles
Contributing drainage area 21,852  square miles
Gage datum 3,480.00 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 1980-10-01 -> 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
1 100 102 86 156 81 223 416 382 121 59 68 87
2 101 103 84 151 77 216 428 343 112 56 70 89
3 102 101 83 144 85 222 433 297 118 53 68 89
4 103 100 82 141 120 251 423 279 106 54 66 91
5 103 101 82 139 154 262 420 249 93 55 67 92
6 107 101 80 136 126 228 422 247 86 57 65 91
7 109 101 78 128 129 221 433 258 81 61 64 91
8 109 105 79 119 154 233 441 221 78 67 64 91
9 109 109 79 112 174 207 445 226 76 71 68 89
10 104 106 81 104 188 217 438 235 76 69 69 89
11 101 100 85 101 192 244 440 237 82 69 68 89
12 100 95 80 101 191 261 435 247 82 70 69 88
13 99 94 76 101 202 277 443 269 73 67 69 90
14 104 96 74 127 200 259 462 235 76 61 70 92
15 106 96 74 143 197 269 459 229 84 57 72 92
16 107 95 74 128 188 289 449 202 86 57 76 97
17 104 93 74 124 186 293 440 187 77 56 77 107
18 102 93 72 116 193 267 445 166 72 55 76 107
19 103 95 71 106 199 297 429 149 64 55 76 103
20 102 95 73 105 211 332 412 154 67 54 76 98
21 103 95 83 110 214 345 407 142 61 56 78 97
22 102 95 91 130 214 341 435 135 60 54 79 96
23 102 97 90 141 205 357 405 144 58 55 79 99
24 102 99 84 140 199 362 403 138 59 52 81 102
25 101 95 83 114 208 369 399 131 59 53 83 101
26 101 93 96 91 231 373 395 127 57 52 83 102
27 101 93 100 73 260 357 404 141 54 58 85 103
28 102 90 106 67 248 362 366 129 55 61 86 101
29 102 97 113 84 216 381 345 153 55 61 86 97
30 103   122 87 182 397 355 133 56 60 86 97
31 102   143   213   382 123   62   96