
Rocky Mountain Paddleboard - Union Reservoir
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Outfitter details
- Disciplines
- Paddleboarding (SUP)
Rivers & creeks near this outfitter
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Typical flow by month
2013 to 2026
The water at Rocky Mountain Paddleboard - Union Reservoir typically runs highest in June, at a median 640 cfs, and lowest in September, at 89 cfs. The highest flow on record for any single day is 4,570 cfs, in 2015.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 98 | 81 to 118 | |
| February | 98 | 81 to 128 | |
| March | 102 | 80 to 154 | |
| April | 109 | 80 to 202 | |
| May | 379 | 183 to 620 | |
| June | 640 | 414 to 1,004 | |
| July | 113 | 89 to 238 | |
| August | 98 | 81 to 128 | |
| September | 89 | 71 to 127 | |
| October | 99 | 81 to 157 | |
| November | 111 | 93 to 153 | |
| December | 109 | 87 to 140 |
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 13 years of record. Statistics published by the US Geological Survey for ST Vrain CR below Boulder CR at Hwy 119 near Longmont (site 06730525). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Streamflow
24 cfs
Below normal (10th)
Water level
9.44 ft
High today
84°F
Wind
16 kt
Gusts 27 kt
Rain chance
5%
Week ahead
Forecast from Open-Meteo global models (NOAA & ECMWF).
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