Rivermatics

USGS Streamgage 11063680

Devil Cyn C near San Bernardino, CA

Devil Cyn C near San Bernardino, CA is USGS streamgage 11063680 in California, monitoring river discharge in hydrologic subbasin 18070203. It drains a watershed of about 6 square miles. Discharge records at this site go back to 1920. Typical flow runs near 0.1 cfs in July and 2.2 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Drainage area
6 sq mi
Gauge elevation
2,086 ft
Subbasin (HUC-8)
18070203
Coordinates
34.20834, -117.33142
USGS site number
11063680
Records begin
1920-01-01 (106 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 106 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 0 1.6 8.5
February 0 2.2 13.7
March 0.1 2.6 19.8
April 0 2.2 14.2
May 0 1.1 8.5
June 0 0.3 4.5
July 0 0.1 2.7
August 0 0.1 1.8
September 0 0 1.6
October 0 0 1.8
November 0 0.3 2.5
December 0 0.8 4.3

All values in cubic feet per second (cfs).

Common questions

When does Devil Cyn C near San Bernardino, CA normally run highest?
March, on the long-term record. The median daily flow that month is about 2.6 cfs, against 0 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Devil Cyn C near San Bernardino, CA?
It depends on the month. In January, half of days historically fall near 1.6 cfs, with the middle 80% of days between 0 and 8.5 cfs. The month-by-month table on this page gives the full range.
How long has Devil Cyn C near San Bernardino, CA been measured?
Discharge records at USGS site 11063680 begin in 1920, about 106 years, covering roughly 9,116 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Devil Cyn C near San Bernardino, CA?
The gauge sits at 34.20834, -117.33142, in California, in hydrologic subbasin 18070203, at an elevation of about 2,086 feet, draining roughly 6 square miles.
Can I use Devil Cyn C near San Bernardino, 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