Rivermatics

USGS Streamgage 11428995

SF Rubicon River below Robbs Pk Forebay near Kyburz, CA

SF Rubicon River below Robbs Pk Forebay near Kyburz, CA is USGS streamgage 11428995 in California, monitoring river discharge in hydrologic subbasin 18020128. It drains a watershed of about 16 square miles. Discharge records at this site go back to 2017. Typical flow runs near 7.4 cfs in July and 11.5 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Drainage area
16 sq mi
Gauge elevation
5,198 ft
Subbasin (HUC-8)
18020128
Coordinates
38.94806, -120.38889
USGS site number
11428995
Records begin
2017-01-10 (9 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 9 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 3.8 8.2 11.5
February 5.2 9.1 14.7
March 8.2 10.5 14.8
April 10 11.5 18.6
May 10 14 20.1
June 5.2 14 16.7
July 3.9 7.4 16
August 4 7.2 15.1
September 4 7.2 9.4
October — 4 —
November — 4 —
December — 5.2 —

All values in cubic feet per second (cfs).

Common questions

When does SF Rubicon River below Robbs Pk Forebay near Kyburz, CA normally run highest?
May, on the long-term record. The median daily flow that month is about 14 cfs, against 4 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for SF Rubicon River below Robbs Pk Forebay near Kyburz, CA?
It depends on the month. In January, half of days historically fall near 8.2 cfs, with the middle 80% of days between 3.8 and 11.5 cfs. The month-by-month table on this page gives the full range.
How long has SF Rubicon River below Robbs Pk Forebay near Kyburz, CA been measured?
Discharge records at USGS site 11428995 begin in 2017, about 9 years, covering roughly 3,051 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is SF Rubicon River below Robbs Pk Forebay near Kyburz, CA?
The gauge sits at 38.94806, -120.38889, in California, in hydrologic subbasin 18020128, at an elevation of about 5,198 feet, draining roughly 16 square miles.
Can I use SF Rubicon River below Robbs Pk Forebay near Kyburz, CA 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 gauges in this subbasin