USGS Current Conditions for USGS 11456000 NAPA R NR ST HELENA CA x

USGS 11456000 NAPA R NR ST HELENA CA

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NWS Flood Stage: 18 ft.

Peak Chart

Available Parameters	Available Period
All 3 Available Parameters for this site
00060 Discharge	1987-10-02	2026-01-29
00065 Gage height	2007-10-01	2026-01-29
63160 Stream level, NAVD88	2023-01-28	2026-01-29

Days (7)

-- or --
Begin date

End date

Summary of all available data for this site
Instantaneous-data availability statement

Most recent instantaneous value: 105 01-29-2026 04:00 PST

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**Daily discharge, cubic feet per second -- statistics for Jan 29 based on 84 water years of record more**
Min (1977)	25th percen- tile	Median	Most Recent Instantaneous Value Jan 29	75th percen- tile	Mean	Max (1967)
0.06	27	88	105	199	233	2290

Most recent instantaneous value: 2.05 01-29-2026 04:00 PST

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Most recent instantaneous value: 193.38 01-29-2026 04:00 PST

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U.S. Department of the Interior | U.S. Geological Survey
Title: USGS Current Conditions for the Nation
URL: https://waterdata.usgs.gov/nwis/uv?

Page Contact Information: California Water Data Support Team
Page Last Modified: 2026-01-29 07:13:21 EST
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