Hydrohistorian

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San Juan River at Farmington, Nm

River gage · SANFARNM · USGS 09365000 · Division 7 · Water District 29 · San Juan County

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

The record

Period of record
1930-10-01 → 2026-07-06
Daily values
34,157
Latest cached reading
783.0 cfs (2026-07-06)
Trend
decreasing, -4.09 cfs/decade
Pettitt changepoint
~1999

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 SANFARNM; recorded station name “SAN JUAN RIVER AT FARMINGTON, NM”; 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.