Rivermatics

USGS Streamgage 11404330

NF Feather River below Grizzly C, CA

NF Feather River below Grizzly C, CA is USGS streamgage 11404330 in California, monitoring river discharge in hydrologic subbasin 18020121. It drains a watershed of about 1,914 square miles. Discharge records at this site go back to 1985. Typical flow runs near 247.5 cfs in July and 403.4 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Drainage area
1,914 sq mi
Subbasin (HUC-8)
18020121
Coordinates
39.85238, -121.39247
USGS site number
11404330
Records begin
1985-09-30 (41 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 41 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 62.4 338.5 3,653.8
February 77.4 372.7 5,383.4
March 128.3 474.6 6,282.3
April 108.1 403.4 6,143.3
May 75.1 476.7 5,167.1
June 60.4 288.6 2,125.6
July 57.4 247.5 560.1
August 56.6 250.9 453.3
September 57.9 243.7 443.5
October 57.1 203 489.3
November 57.9 184.6 659.9
December 59.5 259.5 2,465.8

All values in cubic feet per second (cfs).

Common questions

When does NF Feather River below Grizzly C, CA normally run highest?
May, on the long-term record. The median daily flow that month is about 476.7 cfs, against 184.6 cfs in November, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for NF Feather River below Grizzly C, CA?
It depends on the month. In January, half of days historically fall near 338.5 cfs, with the middle 80% of days between 62.4 and 3,653.8 cfs. The month-by-month table on this page gives the full range.
How long has NF Feather River below Grizzly C, CA been measured?
Discharge records at USGS site 11404330 begin in 1985, about 41 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 NF Feather River below Grizzly C, CA?
The gauge sits at 39.85238, -121.39247, in California, in hydrologic subbasin 18020121, draining roughly 1,914 square miles.
Can I use NF Feather River below Grizzly C, 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