Rivermatics

USGS Streamgage 11325500

Mokelumne River A Woodbridge, CA

Mokelumne River A Woodbridge, CA is USGS streamgage 11325500 in California, monitoring river discharge in hydrologic subbasin 18040012. It drains a watershed of about 661 square miles. Discharge records at this site go back to 1924. Typical flow runs near 74.2 cfs in July and 343.4 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Drainage area
661 sq mi
Gauge elevation
15 ft
Subbasin (HUC-8)
18040012
Coordinates
38.15853, -121.30356
USGS site number
11325500
Records begin
1924-06-01 (102 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 102 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 62 296.5 2,121.6
February 48.5 446.1 2,417.2
March 34.2 427.1 2,172.3
April 21.4 343.4 2,747
May 22.1 421.5 2,831
June 18.4 358.4 2,222
July 18.2 74.2 842.6
August 16.3 54.9 506
September 17.8 113 551.6
October 27.9 223.3 830.1
November 67.4 292.4 710.7
December 59.7 284 844.6

All values in cubic feet per second (cfs).

Common questions

When does Mokelumne River A Woodbridge, CA normally run highest?
February, on the long-term record. The median daily flow that month is about 446.1 cfs, against 54.9 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 Mokelumne River A Woodbridge, CA?
It depends on the month. In January, half of days historically fall near 296.5 cfs, with the middle 80% of days between 62 and 2,121.6 cfs. The month-by-month table on this page gives the full range.
How long has Mokelumne River A Woodbridge, CA been measured?
Discharge records at USGS site 11325500 begin in 1924, about 102 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 Mokelumne River A Woodbridge, CA?
The gauge sits at 38.15853, -121.30356, in California, in hydrologic subbasin 18040012, at an elevation of about 15 feet, draining roughly 661 square miles.
Can I use Mokelumne River A Woodbridge, 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