Rivermatics

USGS Streamgage 09527630

Brock Reservoir Inlet near Calexico, CA

Brock Reservoir Inlet near Calexico, CA is USGS streamgage 09527630 in California, monitoring river discharge in hydrologic subbasin 18100204. Discharge records at this site go back to 2013. Typical flow runs near 62.1 cfs in July and 63 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Gauge elevation
160 ft
Subbasin (HUC-8)
18100204
Coordinates
32.70949, -115.02544
USGS site number
09527630
Records begin
2013-11-05 (13 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 13 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 2.7 42.7 725.9
February 4.2 60.5 628.2
March 5.3 96.6 734.6
April 5.6 63 872.5
May 4.2 50.4 683.1
June 2.9 49.3 659
July 2.4 62.1 675
August 1.4 49.3 797.9
September 0.5 29.6 822.1
October 0.7 49.3 627.3
November 2.8 87.1 717.7
December 3.9 82.4 654.5

All values in cubic feet per second (cfs).

Common questions

When does Brock Reservoir Inlet near Calexico, CA normally run highest?
March, on the long-term record. The median daily flow that month is about 96.6 cfs, against 29.6 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 Brock Reservoir Inlet near Calexico, CA?
It depends on the month. In January, half of days historically fall near 42.7 cfs, with the middle 80% of days between 2.7 and 725.9 cfs. The month-by-month table on this page gives the full range.
How long has Brock Reservoir Inlet near Calexico, CA been measured?
Discharge records at USGS site 09527630 begin in 2013, about 13 years, covering roughly 4,616 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Brock Reservoir Inlet near Calexico, CA?
The gauge sits at 32.70949, -115.02544, in California, in hydrologic subbasin 18100204, at an elevation of about 160 feet.
Can I use Brock Reservoir Inlet near Calexico, 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