Rivermatics

USGS Streamgage 10260500

Deep C near Hesperia, CA

Deep C near Hesperia, CA is USGS streamgage 10260500 in California, monitoring river discharge in hydrologic subbasin 18090208. It drains a watershed of about 134 square miles. Discharge records at this site go back to 1904. Typical flow runs near 2.2 cfs in July and 65.5 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead, alongside daily high and low water-temperature forecasts.

View live conditions & forecast →

Gauge details

State
California
Drainage area
134 sq mi
Gauge elevation
3,025 ft
Subbasin (HUC-8)
18090208
Coordinates
34.34306, -117.22643
USGS site number
10260500
Records begin
1904-10-01 (122 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Deep C near Hesperia, CA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
0.6 0.7 0.8
0.5 0.7 0.8
0.5 0.6 0.8
0.4 0.6 0.9
0.4 0.6 0.9
0.4 0.6 1
0.3 0.6 1.2
0.3 0.6 1.2
0.3 0.6 1.6
0.3 0.6 1.5
0.3 0.6 1.4
0.3 0.7 1.4
0.2 0.7 1.5
0.2 0.6 1.5

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 122 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 6.3 18.3 157.3
February 9.5 41.4 361.3
March 13.9 73.1 445.5
April 10 65.5 341.8
May 5.5 25.5 152.3
June 1.7 7.1 46.4
July 0.5 2.2 16.6
August 0.3 1.1 8.9
September 0.4 1.3 7.8
October 0.8 2.7 10.3
November 2.3 6.2 18.9
December 4 10.2 58.2

All values in cubic feet per second (cfs).

Common questions

When does Deep C near Hesperia, CA normally run highest?
March, on the long-term record. The median daily flow that month is about 73.1 cfs, against 1.1 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 Deep C near Hesperia, CA?
It depends on the month. In January, half of days historically fall near 18.3 cfs, with the middle 80% of days between 6.3 and 157.3 cfs. The month-by-month table on this page gives the full range.
How long has Deep C near Hesperia, CA been measured?
Discharge records at USGS site 10260500 begin in 1904, about 122 years, covering roughly 9,131 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Deep C near Hesperia, CA?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. A companion model forecasts each day's water-temperature high and low. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Deep C near Hesperia, CA?
The gauge sits at 34.34306, -117.22643, in California, in hydrologic subbasin 18090208, at an elevation of about 3,025 feet, draining roughly 134 square miles.
Can I use Deep C near Hesperia, 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