Hydrohistorian

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Blue River near Dillon

River gage · BLUNDICO · USGS 09046600 · Division 5 · Water District 36 · Summit County

Live gage at DWR ↗ · USGS monitoring location ↗ · Download daily record (CSV)

The record

Period of record
1957-10-01 → 2026-07-06
Daily values
25,116
Latest cached reading
49.1 cfs (2026-07-06)
Trend
no trend, 0.41 cfs/decade

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

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Where it sits

Location as DWR records it (5).

Provenance

DWR station abbreviation BLUNDICO; recorded station name “BLUE RIVER NEAR DILLON, CO”; operated by USGS. 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.