Rivermatics

4 USGS Streamgages · New York Slough system

Nf Stanislaus River flows and levels

Nf Stanislaus River is gauged at 4 USGS streamgages in California, each tracked by Rivermatics. It feeds the North Fork Stanislaus River. It drains into the New York Slough system. Drainage area at the gauges ranges from 16 square miles at NF Stanislaus River below Utica Reservoir near Bear Valley, CA up to 166 at NF Stanislaus River below McKays Point Dam near Avery, CA. The gauged reach falls about 3,422 feet, from 6,810 feet down to 3,388.

Gauges on this river, upstream to downstream

Ordered by drainage area, which is how far down the river each gauge sits. April and July figures are long-term median daily flows for that month from the USGS record — historical normals, not a forecast and not today's reading.

USGS streamgages on this river, ordered upstream to downstream
Gauge State Drainage sq mi Elevation ft April p50 cfs July p50 cfs Forecast
NF Stanislaus River below Utica Reservoir near Bear Valley, CA CA 16 6,810 6.8 6.5 —
NF Stanislaus River below Diversion D CA 29 6,628 25.4 13.1 —
NF Stanislaus River near Avery, CA CA 166 3,388 822.3 132 —
NF Stanislaus River below McKays Point Dam near Avery, CA CA 166 — 18 19.8 —

Typical flow by month at NF Stanislaus River below McKays Point Dam near Avery, CA

The furthest-downstream gauge on this river, so the fullest flow it carries here. Long-term daily discharge percentiles from the USGS record (up to 37 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 18 18.2 30.6
February 18 18 23.2
March 18 18 24.5
April 18 18 111.9
May 18 18.4 267
June 18 18.6 181.2
July 18 19.8 24.1
August 18 22.5 25.8
September 18.7 23.4 27.6
October 18.8 22.7 26.9
November 18 20 24.9
December 18 18.8 49.1

All values in cubic feet per second (cfs).

Common questions

When does the Nf Stanislaus River run highest?
September, on the long-term record at NF Stanislaus River below McKays Point Dam near Avery, CA — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 23.4 cfs that month, against 18 cfs in February, the lowest. Upstream gauges peak on their own schedule; the table on this page gives April and July for each.
How many gauges are on the Nf Stanislaus River?
Rivermatics tracks 4 USGS streamgages on the Nf Stanislaus River, across California. Each has its own page with the site's full flow record and monthly normals. The river may carry other gauges that publish neither daily values nor discharge statistics; those are not tracked here.
What river system is the Nf Stanislaus River part of?
The Nf Stanislaus River drains into the New York Slough system — it is a tributary somewhere in that chain, following the flowpath down to its terminal river. Rivermatics builds this from the USGS/geoconnex reference-mainstem network rather than from names.
Can I use Nf Stanislaus River data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Other rivers in the New York Slough system

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