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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 07133000 ARKANSAS RIVER AT LAMAR, CO


Prowers County, Colorado
Hydrologic Unit Code 11020009
Latitude  38°06'20.85", Longitude 102°37'05.54" NAD83
Drainage area 19,743  square miles
Contributing drainage area 18,793  square miles
Gage datum 3,597.39 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 66 - 67 years of record in, ft3/s   (Calculation Period 1948-10-01 -> 2019-09-30)

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 33 37 30 101 84 177 327 283 162 44 27 23
2 34 37 25 134 82 175 330 269 135 41 25 23
3 35 35 24 141 102 201 333 265 135 41 23 23
4 33 37 24 143 105 210 321 245 118 41 21 23
5 33 36 22 146 106 312 322 237 114 44 21 23
6 36 36 21 148 119 168 348 241 107 47 20 23
7 36 37 21 144 127 173 333 212 106 55 20 23
8 38 42 23 146 145 172 348 199 78 59 20 23
9 37 43 26 155 160 151 336 190 77 54 21 22
10 32 43 34 160 159 187 351 202 88 55 21 22
11 31 36 32 166 163 211 356 224 80 53 21 22
12 32 34 25 158 162 234 360 225 71 50 22 22
13 33 33 24 156 182 219 400 210 67 45 21 24
14 37 37 24 178 176 221 366 196 64 38 21 24
15 37 35 23 163 180 233 346 168 79 33 21 25
16 37 33 22 156 165 267 349 160 77 34 22 34
17 35 32 21 133 178 226 343 142 67 32 22 37
18 36 33 21 116 185 610 337 142 54 30 22 36
19 36 34 21 114 178 374 318 154 51 25 21 31
20 36 34 28 112 195 295 305 138 49 25 22 29
21 37 35 39 130 178 284 319 121 45 23 21 29
22 37 39 48 140 175 273 324 128 45 21 21 31
23 37 38 37 140 162 302 333 140 50 19 22 35
24 35 36 37 125 174 347 300 156 49 19 22 35
25 34 33 41 112 182 300 297 148 60 19 23 35
26 34 33 53 106 207 283 361 157 49 23 23 35
27 36 34 53 94 219 276 317 130 42 24 22 35
28 36 33 62 106 184 290 295 126 44 22 22 31
29 38 22 69 114 178 298 272 162 44 20 23 30
30 37   83 100 227 317 314 153 44 20 23 27
31 36   95   226   306 152   24   28