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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 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 -> 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
1 474 477 441 354 239 -331 -160 200 261 135 107 42
2 426 476 450 335 220 -318 -117 208 243 154 112 54
3 437 480 457 338 209 -418 -87 209 329 171 85 59
4 450 483 461 317 213 -542 -67 182 287 180 53 65
5 473 480 456 320 203 -702 -17 191 284 179 48 70
6 445 475 458 312 189 -737 -9.4 247 303 154 35 66
7 460 462 433 328 194 -727 -4.7 236 369 168 56 72
8 437 460 429 349 164 -770 -11 234 328 219 49 82
9 406 449 430 336 147 -697 46 248 329 216 46 76
10 414 476 428 327 122 -699 90 291 332 194 40 93
11 414 494 432 311 136 -672 103 237 317 182 37 94
12 369 459 435 315 129 -712 112 199 287 150 25 151
13 365 443 429 331 123 -665 105 265 248 175 30 225
14 381 476 396 328 68 -607 131 241 232 189 30 217
15 376 476 340 319 53 -481 107 223 258 222 24 268
16 408 479 373 309 -2.4 -472 119 231 302 208 30 284
17 427 477 383 311 -16 -517 160 279 290 214 31 250
18 397 480 410 310 -45 -438 154 243 246 218 4.5 254
19 413 479 403 304 -44 -446 105 235 245 228 -8.8 261
20 420 465 403 289 -15 -442 157 273 279 218 -14 273
21 412 469 395 297 -1.4 -435 200 258 274 209 -12 349
22 398 464 407 272 -20 -367 226 252 271 252 -13 356
23 408 449 394 283 -78 -262 257 236 265 231 -11 372
24 419 454 391 274 -113 -251 190 281 282 245 3.7 374
25 409 449 387 255 -163 -228 166 279 257 252 41 389
26 401 438 362 241 -170 -202 194 243 227 248 78 392
27 398 447 361 265 -167 -190 229 272 220 262 65 405
28 402 427 351 253 -229 -164 208 248 213 252 50 427
29 399 463 374 265 -284 -178 217 243 165 260 41 429
30 403   373 254 -289 -184 213 261 148 186 51 466
31 417   370   -317   177 301   127   459