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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 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 water year of record in, ft3/s   (Calculation Period 1948-10-01 -> 2023-09-30)

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 36 30 96 82 171 332 280 160 43 28 23
2 34 37 25 127 80 168 333 267 134 40 25 23
3 34 34 24 134 99 192 337 263 134 39 23 23
4 33 36 24 135 102 200 326 246 117 39 22 23
5 33 36 22 138 103 296 326 238 114 43 21 23
6 35 35 21 141 114 160 351 242 107 45 21 23
7 36 36 21 137 122 166 336 216 106 53 21 24
8 38 41 23 139 140 170 348 201 80 56 21 23
9 37 42 25 148 154 153 337 191 80 52 21 23
10 32 42 33 152 152 186 353 200 88 53 22 23
11 31 35 32 158 155 209 358 221 79 51 22 23
12 32 34 25 150 154 230 361 222 70 48 23 23
13 33 32 24 149 174 215 400 207 66 43 22 24
14 37 36 24 170 168 216 367 193 64 36 22 25
15 37 35 23 155 172 227 348 167 77 32 22 25
16 36 32 22 149 158 260 351 158 75 32 23 34
17 35 31 21 127 170 222 345 142 65 31 23 37
18 35 32 21 111 176 585 340 141 53 29 23 35
19 36 33 21 109 170 365 322 152 50 25 22 31
20 36 33 27 107 185 295 309 137 48 24 22 29
21 37 35 37 124 170 286 322 120 44 23 22 29
22 36 38 46 134 166 276 323 127 44 21 22 31
23 36 38 36 134 154 304 330 138 48 19 22 35
24 35 35 36 120 166 349 300 153 47 19 23 35
25 34 32 40 107 173 304 295 145 58 19 23 34
26 33 32 51 102 197 289 354 154 48 23 23 34
27 35 33 51 90 209 282 312 128 41 23 23 34
28 36 32 59 101 175 295 292 125 43 21 23 31
29 37 23 66 110 169 304 269 160 43 20 23 29
30 37   79 97 223 323 310 151 43 20 23 27
31 36   91   217   302 150   24   28