Big Rock Creek near Valyermo water level

Name: Big Rock Creek near Valyermo water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Big Rock Creek, California, United States

Directions

Normal for late October

Water level

2.34ft Steady over the last 24 hours

Measured Oct 21, 2026, 02:15 AM PDT (55 min ago)

Flow: 6.0 cfs

History

7 days

Water level

What this means

Big Rock Creek near Valyermo is at 2.34 ft, in the normal range for late October.

The level has held steady over the past 24 hours. In the last month it has stayed between 2.32 ft and 2.36 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 5 years of daily readings for this time of year. How to read levels

Key numbers

Highest on record: 9.42 ftMarch 2, 1938

Floating and fishing near Big Rock Creek near Valyermo

Normal flows mean predictable rapids and good access at most put-ins.

Highest crests on record

Rank	Level	Date
1	9.42 ft	March 2, 1938

Weather at the gauge

The forecast is not available right now.

Sunrise 07:02 AM Sunset 06:11 PM Daylight 11 hr, 8 min Waxing gibbous 76%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Cucamonga Creek near UplandRiver gauge, Cucamonga Creek	3.0 cfs	Normal	−14.3 cfs	21 mi
Arroyo Seco near PasadenaRiver gauge, Arroyo Seco	0.3 cfs	Low	+0.1 cfs	24 mi
Cajon Creek below Lone Pine Creek near KeenbrookRiver gauge, Cajon Creek	4.3 cfs	Normal	−10.8 cfs	24 mi
Lytle Creek near FontanaRiver gauge, Lytle Creek	25.9 cfs	Very high	−4.7 cfs	26 mi
Fontana Water Co Surface Diversion near FontanaRiver gauge, Fontana Water Co Surface Diversion	10.1 cfs	High	±0	27 mi
Fontana Water Co Surface Diversion Weir 2 near FontanaRiver gauge, Fontana Water Co Surface Diversion Weir 2	9.0 cfs	High	±0	27 mi
Fontana Ph Forebay Spillway near FontanaRiver gauge, Fontana Ph Forebay Spillway	0.0 cfs	Normal	±0	27 mi
Rio Hondo above Whittier Narrows DamRiver gauge, Rio Hondo	1.0 cfs	Normal	+0.2 cfs	28 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Big Rock Creek near Valyermo today?

On Oct 21, 2026, 02:15 AM PDT, the water level was 2.34 ft. Steady over the last 24 hours.

Is Big Rock Creek near Valyermo rising or falling?

Steady over the last 24 hours.

Is the level of Big Rock Creek near Valyermo normal?

Normal for late October. Compared with 5 years of daily readings for this time of year.

What is the highest water level ever recorded at Big Rock Creek near Valyermo?

The highest level on record is 9.42 ft on March 2, 1938.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:10263500 (Agency page)
Coordinates: 34.42083, -117.83951 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	2.34 ft	2026-10-21 09:15	Provisional
Flow	6.0 cfs	2026-10-21 09:15	Provisional

Download

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How to cite

U.S. Geological Survey: Big Rock Creek near Valyermo (usgs:10263500). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/california/big-rock-creek-near-valyermo

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer