Rivermatics

USGS Streamgage 11062450

Fontana Ph Forebay Spillway near Fontana, CA

Fontana Ph Forebay Spillway near Fontana, CA is USGS streamgage 11062450 in California, monitoring river discharge in hydrologic subbasin 18070203. Discharge records at this site go back to 1972. Typical flow runs near 0 cfs in July and 0 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Gauge elevation
2,251 ft
Subbasin (HUC-8)
18070203
Coordinates
34.20279, -117.44921
USGS site number
11062450
Records begin
1972-10-01 (54 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 54 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 0 0.4
February 0 0 3
March 0 0 4.3
April 0 0 3.8
May 0 0 5.6
June 0 0 2.9
July 0 0 5.7
August 0 0 3.3
September 0 0 0.7
October 0 0 0.3
November 0 0 0
December 0 0 0.2

All values in cubic feet per second (cfs).

Common questions

When does Fontana Ph Forebay Spillway near Fontana, CA normally run highest?
January, on the long-term record. The median daily flow that month is about 0 cfs, against 0 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Fontana Ph Forebay Spillway near Fontana, CA?
It depends on the month. In January, half of days historically fall near 0 cfs, with the middle 80% of days between 0 and 0.4 cfs. The month-by-month table on this page gives the full range.
How long has Fontana Ph Forebay Spillway near Fontana, CA been measured?
Discharge records at USGS site 11062450 begin in 1972, about 54 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Fontana Ph Forebay Spillway near Fontana, CA?
The gauge sits at 34.20279, -117.44921, in California, in hydrologic subbasin 18070203, at an elevation of about 2,251 feet.
Can I use Fontana Ph Forebay Spillway near Fontana, 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