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Holly Drain near Holly

River gage · HOLHOLCO · USGS 07136500 · Division 2 · Water District 67 · Prowers 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
1924-01-01 → 1950-09-30
Daily values
9,770
Latest cached reading
52.0 cfs (1950-09-30)
Trend
no trend, 4.11 cfs/decade (12.2% of median)
Pettitt changepoint
~1941

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 Holly Drain near Holly, water years 1924 to 1950. The measured record is no trend at 4.11 cubic feet per second per decade. A Pettitt changepoint is detected around 1941. The underlying yearly values are available as a CSV download linked at the top of this page.

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Where it sits

Location as DWR records it (5.0).

Provenance

DWR station abbreviation HOLHOLCO; recorded station name “HOLLY DRAIN NEAR HOLLY, 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.