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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 81 218 407 382 121 59 68 87
2 101 103 84 151 77 212 419 343 112 56 70 89
3 102 101 83 144 84 218 423 297 118 53 68 89
4 103 100 82 141 118 247 414 279 106 54 66 91
5 103 101 82 139 152 258 411 249 93 55 67 92
6 107 101 80 136 124 224 413 247 86 57 65 91
7 109 101 78 128 128 218 424 258 81 61 64 91
8 109 105 79 119 152 229 433 221 78 67 64 91
9 109 109 79 112 171 205 436 226 76 71 68 89
10 104 106 81 104 185 213 429 235 76 69 69 89
11 101 100 85 101 188 240 431 237 82 69 68 89
12 100 95 80 101 188 257 426 247 82 70 69 88
13 99 94 76 101 199 272 434 269 73 67 69 90
14 104 96 74 127 197 254 452 235 76 61 70 92
15 106 96 74 143 193 264 449 229 84 57 72 92
16 107 95 74 128 185 284 441 202 86 57 76 97
17 104 93 74 124 183 287 436 187 77 56 77 107
18 102 93 72 116 190 262 443 166 72 55 76 107
19 103 95 71 106 195 291 427 149 64 55 76 103
20 102 95 73 105 207 325 409 154 67 54 76 98
21 103 95 83 110 210 338 407 142 61 56 78 97
22 102 95 91 130 210 335 435 135 60 54 79 96
23 102 97 90 141 201 350 405 144 58 55 79 99
24 102 99 84 140 196 355 403 138 59 52 81 102
25 101 95 83 114 204 361 399 131 59 53 83 101
26 101 93 96 91 226 365 395 127 57 52 83 102
27 101 93 100 73 254 350 404 141 54 58 85 103
28 102 90 106 67 243 354 366 129 55 61 86 101
29 102 97 113 84 212 373 345 153 55 61 86 97
30 103   122 87 179 389 355 133 56 60 86 97
31 102   143   209   382 123   62   96