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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
1 101 103 86 159 81 223 416 382 121 59 68 87
2 102 103 85 154 77 216 428 343 112 56 70 89
3 103 101 83 148 85 222 433 297 118 53 68 90
4 104 100 82 144 120 251 423 279 106 54 66 92
5 104 102 82 142 154 262 420 249 93 55 67 92
6 108 102 80 139 126 228 422 247 86 57 65 92
7 110 102 78 131 129 221 433 258 81 61 64 91
8 110 106 79 122 154 233 441 221 78 67 64 91
9 110 109 80 115 174 207 445 226 76 71 68 90
10 105 107 81 106 188 217 438 235 76 69 69 89
11 102 100 85 103 192 244 440 237 82 69 68 89
12 101 95 80 103 191 261 435 247 82 70 69 89
13 100 95 76 103 202 277 443 269 73 67 68 90
14 105 96 75 129 200 259 462 235 76 61 69 92
15 106 97 74 146 197 269 459 229 84 57 71 92
16 107 95 74 131 188 289 449 202 86 57 75 98
17 104 94 74 124 186 293 440 187 77 56 76 107
18 102 94 73 110 193 267 445 166 72 55 76 108
19 104 96 71 99 199 297 429 149 64 55 76 103
20 103 96 73 98 211 332 412 154 67 54 76 99
21 104 96 83 102 214 345 407 142 61 56 78 98
22 103 96 92 122 214 341 435 135 60 54 79 97
23 103 98 91 133 205 357 405 144 58 55 78 100
24 103 99 85 133 199 362 403 138 59 52 80 102
25 102 96 85 106 208 369 399 131 59 53 83 102
26 102 94 98 86 231 373 395 127 57 52 83 102
27 102 93 102 71 260 357 404 141 54 58 85 104
28 103 91 108 66 248 362 366 129 55 61 86 102
29 103 97 116 83 216 381 345 153 55 61 86 98
30 103   125 87 182 397 355 133 56 60 86 98
31 103   146   213   382 123   62   97