Headwaters Marina
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Boat launches near Headwaters Marina
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Typical flow by month
2010 to 2026
The water at Headwaters Marina typically runs highest in June, at a median 470 cfs, and lowest in February, at -514 cfs. The highest flow on record for any single day is 1,910 cfs, in 2010.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | -452 | -532 to -265 | |
| February | -514 | -548 to -379 | |
| March | -418 | -504 to -297 | |
| April | -325 | -430 to -47 | |
| May | -68 | -227 to 114 | |
| June | 470 | 221 to 684 | |
| July | -252 | -353 to 23 | |
| August | -344 | -469 to -48 | |
| September | -320 | -443 to -166 | |
| October | -161 | -466 to 58 | |
| November | 12 | -110 to 33 | |
| December | -235 | -526 to -7.9 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 15 years of record. Statistics published by the US Geological Survey for Grand Lake Outlet below Chipmunk LN at Grand LK, CO (site 09014050). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Streamflow
-382 cfs
Normal (35th)
Water level
8.58 ft
Water
59°F
High today
69°F
Wind
16 kt
Gusts 21 kt
Rain chance
20%
Week ahead
Forecast from Open-Meteo global models (NOAA & ECMWF). See full conditions →
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