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Arapaho Creek at Monarch Lake Outlet

Reservoir gage · ARAMONCO · USGS 09016500 · Division 5 · Water District 51 · Grand County

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

Source DWR administrative record · verify at DWR station ↗ Source Independent agency measurement · verify at USGS ↗ Source Our computation, no independent reference · computed here from the screened record

The record

Period of record
1944-10-01 → 1971-09-30
Daily values
9,861
Latest cached reading
21.0 cfs (1971-09-30)
Trend
no trend, 0.47 cfs/decade (0.6% 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

Chart: annual mean flow at Arapaho Creek at Monarch Lake Outlet, water years 1944 to 1971. The measured record is no trend at 0.47 cubic feet per second per decade. The underlying yearly values are available as a CSV download linked at the top of this page.

Loading chart…

Where it sits

Location as DWR records it (5.0).

Provenance

DWR station abbreviation ARAMONCO; recorded station name “ARAPAHO CREEK AT MONARCH LAKE OUTLET, 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.