Rivermatics

USGS Streamgage 10256501

Snow C and Diversion Combined, CA

Snow C and Diversion Combined, CA is USGS streamgage 10256501 in California, monitoring river discharge in hydrologic subbasin 18100201. It drains a watershed of about 11 square miles. Discharge records at this site go back to 1959. Typical flow runs near 3.7 cfs in July and 8.6 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Drainage area
11 sq mi
Subbasin (HUC-8)
18100201
Coordinates
33.87057, -116.68113
USGS site number
10256501
Records begin
1959-10-01 (67 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 67 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 3.4 5.4 21.3
February 3.6 6.5 27.8
March 3.9 7.8 31.1
April 4 8.6 25.8
May 3.5 7.8 28.2
June 2.8 5 19
July 2.4 3.7 11
August 2.4 3.4 8.3
September 2.4 3.4 7.5
October 2.5 3.5 6.2
November 2.7 3.9 7.4
December 3.1 4.8 13.4

All values in cubic feet per second (cfs).

Common questions

When does Snow C and Diversion Combined, CA normally run highest?
April, on the long-term record. The median daily flow that month is about 8.6 cfs, against 3.4 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Snow C and Diversion Combined, CA?
It depends on the month. In January, half of days historically fall near 5.4 cfs, with the middle 80% of days between 3.4 and 21.3 cfs. The month-by-month table on this page gives the full range.
How long has Snow C and Diversion Combined, CA been measured?
Discharge records at USGS site 10256501 begin in 1959, about 67 years, covering roughly 8,944 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Snow C and Diversion Combined, CA?
The gauge sits at 33.87057, -116.68113, in California, in hydrologic subbasin 18100201, draining roughly 11 square miles.
Can I use Snow C and Diversion Combined, 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