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USGS Daily Statistics for Wyoming

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Questions or concerns about USGS data and data products in Wyoming and Montana can be directed to the Wyoming-Montana Water Science Center Data Management Section.


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 06188000 Lamar River nr Tower Ranger Station YNP


Park County, Wyoming
Hydrologic Unit Code 10070001
Latitude  44°55'41.44", Longitude 110°23'39.37" NAD83
Drainage area 668  square miles
Gage datum 6,000 feet above NAVD88
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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 1922-10-01 -> 2024-09-30)

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
1 115 104 110 177 1,180 4,800 2,700 492 240 219 202 137
2 114 104 110 183 1,240 4,820 2,560 479 239 218 194 137
3 114 106 111 192 1,380 4,830 2,450 466 240 218 192 134
4 114 106 112 208 1,530 4,880 2,340 452 227 222 190 132
5 114 106 112 219 1,650 5,100 2,210 435 222 216 187 128
6 114 106 112 222 1,780 5,190 2,090 411 219 223 187 126
7 113 106 112 225 1,950 5,070 1,980 396 220 226 184 126
8 114 106 114 238 2,020 4,910 1,860 382 214 230 190 126
9 113 106 115 253 2,120 4,780 1,740 375 218 223 189 125
10 113 106 117 267 2,160 4,670 1,650 367 220 220 182 126
11 111 106 119 296 2,230 4,580 1,570 363 221 222 175 126
12 109 108 121 319 2,370 4,580 1,470 353 218 222 170 126
13 110 108 121 346 2,560 4,780 1,360 348 218 219 168 125
14 110 106 123 391 2,650 4,620 1,280 332 213 217 165 125
15 109 107 123 415 2,840 4,470 1,200 316 217 219 165 125
16 108 107 128 429 3,070 4,530 1,110 312 215 226 163 122
17 107 107 130 445 3,270 4,400 1,040 304 220 223 160 120
18 107 109 132 476 3,390 4,260 970 305 227 218 157 119
19 109 109 136 515 3,560 4,180 921 306 235 218 160 120
20 108 109 142 587 3,720 4,070 882 309 233 220 157 121
21 107 109 145 686 3,910 3,930 831 301 237 213 152 121
22 107 109 142 760 3,960 3,870 770 295 233 209 147 120
23 106 108 142 824 3,990 3,770 731 285 227 207 146 119
24 107 108 140 842 4,060 3,660 706 279 228 204 150 120
25 109 108 143 853 4,200 3,500 664 270 224 205 148 119
26 110 109 148 869 4,250 3,410 640 270 218 208 145 119
27 109 109 149 907 4,370 3,320 608 262 223 205 144 119
28 107 110 150 969 4,550 3,100 582 252 219 206 141 119
29 107 112 151 1,070 4,770 2,940 559 249 216 210 140 118
30 107   151 1,140 4,780 2,840 540 243 219 205 141 118
31 107   158   4,710   512 248   210   117