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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 09014050 GRAND LAKE OUTLET BLW CHIPMUNK LN AT GRAND LK, CO


Grand County, Colorado
Hydrologic Unit Code 14010001
Latitude  40°14'46.0", Longitude 105°49'43.8" NAD83
Drainage area 76.4  square miles
Gage datum 8,365 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 2009-10-01 -> 2020-09-30)

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
1 474 458 437 370 275 -385 -173 152 192 135 107 42
2 426 457 447 366 249 -353 -121 159 170 154 112 54
3 437 461 451 374 231 -445 -83 187 279 171 85 59
4 450 464 454 339 242 -526 -56 152 239 180 53 65
5 473 466 448 354 219 -690 4.1 147 239 179 48 70
6 445 461 446 329 196 -735 14 213 254 154 35 66
7 460 442 417 342 192 -708 13 203 345 168 56 72
8 437 435 409 346 149 -748 -15 183 290 219 49 82
9 406 450 407 339 132 -656 26 202 296 216 46 76
10 414 458 407 324 114 -666 68 257 304 194 40 93
11 414 479 409 309 126 -635 89 190 298 182 37 94
12 369 434 417 324 127 -685 96 137 266 150 25 151
13 365 428 418 341 103 -643 80 209 256 175 30 225
14 381 457 410 341 49 -595 110 191 244 189 30 217
15 376 454 346 324 55 -482 80 163 263 222 24 268
16 408 456 393 313 36 -468 89 186 282 208 30 284
17 427 455 402 317 12 -510 136 231 277 214 31 250
18 397 457 400 309 -10 -436 118 186 256 218 4.5 254
19 413 454 383 307 3.8 -462 55 173 255 228 -8.8 261
20 420 436 383 284 26 -441 110 224 276 218 -14 273
21 412 446 384 297 15 -455 157 218 267 209 -12 349
22 398 455 397 274 -11 -378 180 209 260 252 -13 356
23 408 437 387 280 -59 -252 219 174 250 231 -11 372
24 419 439 397 267 -124 -236 158 227 273 245 3.7 374
25 409 431 397 248 -187 -210 115 228 267 252 41 389
26 401 424 364 243 -187 -185 134 185 234 248 78 392
27 398 440 365 281 -160 -186 174 246 199 262 65 405
28 402 416 359 268 -210 -146 149 226 188 252 50 427
29 399 463 388 281 -285 -176 162 199 150 260 41 429
30 403   395 281 -298 -185 167 197 139 186 51 466
31 417   397   -352   140 246   127   459