Rivermatics

USGS Streamgage 11427760

MF American River Ab MF Ph near Foresthill, CA

MF American River Ab MF Ph near Foresthill, CA is USGS streamgage 11427760 in California, monitoring river discharge in hydrologic subbasin 18020128. It drains a watershed of about 88 square miles. Discharge records at this site go back to 1965. Typical flow runs near 26.8 cfs in July and 160.6 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Drainage area
88 sq mi
Subbasin (HUC-8)
18020128
Coordinates
39.02518, -120.59548
USGS site number
11427760
Records begin
1965-09-01 (61 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 61 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 23.2 75.5 329.9
February 39.7 109.3 366.1
March 64.6 158.9 408.8
April 65.7 160.6 395.5
May 42.1 90.7 514.4
June 21.2 47 265.5
July 14 26.8 53.5
August 12 19.2 28.1
September 11.5 17.6 25.4
October 13.5 19.3 55.9
November 16.3 25.1 80.1
December 19.6 41.5 217.5

All values in cubic feet per second (cfs).

Common questions

When does MF American River Ab MF Ph near Foresthill, CA normally run highest?
April, on the long-term record. The median daily flow that month is about 160.6 cfs, against 17.6 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 MF American River Ab MF Ph near Foresthill, CA?
It depends on the month. In January, half of days historically fall near 75.5 cfs, with the middle 80% of days between 23.2 and 329.9 cfs. The month-by-month table on this page gives the full range.
How long has MF American River Ab MF Ph near Foresthill, CA been measured?
Discharge records at USGS site 11427760 begin in 1965, about 61 years, covering roughly 8,821 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is MF American River Ab MF Ph near Foresthill, CA?
The gauge sits at 39.02518, -120.59548, in California, in hydrologic subbasin 18020128, draining roughly 88 square miles.
Can I use MF American River Ab MF Ph near Foresthill, 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