Hydrohistorian
Horsetooth Reservoir (Outflow)
Reservoir gage · HOROUTCO · Division 1 · Water District 3 · Larimer County
The record
Period of record
2000-01-15 → 2026-08-14
Daily values
9,207
Latest cached reading
190.0 cfs (2026-08-14)
Trend
no trend, -12.14 cfs/decade (-11.5% of median)
Readings come from the weekly-refreshed cache, never fetched live — the date beside the value says exactly how fresh it is. The live gage is one click up.
Annual flow & trend
Loading chart…
Where it sits
Location as DWR records it (5.0).
Provenance
DWR station abbreviation HOROUTCO; recorded station name “HORSETOOTH RESERVOIR (OUTFLOW)”; operated by NWBOR. Daily flows from the DWR HydroBase snapshot plus CDSS REST updates, refreshed on the weekly cycle. Trend statistics are Mann-Kendall (Hamed-Rao corrected) with Sen's slope in native cfs, the same numbers as the basin Trends tab.