Hydrohistorian
Big Thompson River below Hillsborough Diversion
River gage · BIGHILCO · Division 1 · Water District 4 · Larimer County
The record
Period of record
1996-03-26 → 2026-08-15
Daily values
10,374
Latest cached reading
61.3 cfs (2026-08-15)
Trend
no trend, 2.73 cfs/decade (6.0% 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 BIGHILCO; recorded station name “BIG THOMPSON RIVER BELOW HILLSBOROUGH DIVERSION”; operated by DWR. 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.