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Clear Lake Reservoir West Lobe water level

Reservoir, California, United States

Directions

Right now

Normal for mid-October

Surface elevation

4,522.91ft Down 0.08 ft over the last 7 days

Water stored
71,972 acre‑ft
4,520 4,525 4,530

History

History
4,5204,5254,530ftOct 14Oct 15Oct 16Oct 17Oct 184,5204,5254,530ftOct 14Oct 16Oct 18
4,5204,5254,530ftSep 21Sep 27Oct 4Oct 11Oct 184,5204,5254,530ftSep 21Oct 4Oct 18
4,5204,5254,530ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20264,5204,5254,530ftOct 2025Apr 2026Oct 2026
4,5204,5254,530ftOct 2016Apr 2019Oct 2021Apr 2024Oct 20264,5204,5254,530ftOct 2016Oct 2021Oct 2026
4,5204,5254,530ftJanMarMayJulSepNov20264,5204,5254,530ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

Nothing unusual at Clear Lake Reservoir West Lobe right now: the lake level of 4,522.91 ft is in the normal range for mid-October.

That puts it 0.70 ft above the median of 4,522.21 ft for mid-October, based on 17 years of readings. A year ago it stood at 4,525.83 ft (−2.92 ft).

The level is falling, down 0.08 ft over the past week. Over the past 30 days it has moved between 4,522.91 ft and 4,523.23 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Compared with 17 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
4,522.21 ft0.70 ft above the median for this date
Normal for this date
4,518.73 ft – 4,529.64 ft8 years in 10 fall in this range (17 years of records)
Same day last year
4,525.83 ft−2.92 ft
Lowest and highest in 30 days
4,522.91 ft – 4,523.23 ft
Lowest and highest in 12 months
4,522.91 ft – 4,527.62 ft

Swimming and boating at Clear Lake Reservoir West Lobe

At a normal level, ramps and marinas generally run as usual, and fishing tends to follow the season more than the water level.

If you swim, pick a spot with an easy way out, and remember that drop-offs move as the level changes.

Weather at the gauge

No rain in the last 3 days.

17 Sat 73° 33° – Wind 12 mph
18 Sun 71° 45° – Wind 19 mph
19 Mon 64° 45° – Wind 18 mph
20 Tue 64° 43° – Wind 16 mph
21 Wed 59° 42° – Wind 11 mph
22 Thu 65° 38° – Wind 16 mph
23 Fri 63° 33° – Wind 10 mph

Forecast: Open-Meteo

Sunrise 07:23 AM Sunset 06:17 PM Daylight 10 hr, 54 min First quarter 65%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Clear Lake Reservoir East LobeReservoir 4,522.88 ft Normal 9 mi
Gerber ReservoirReservoir 4,815.25 ft Normal 25 mi
Lost River ReservoirReservoir 0.00 ft Very low 31 mi
Ady Canal above Lower Klamath Nwr, near WordenCanal gauge, Ady Canal 58.5 cfs Normal −109.5 cfs 33 mi
Pit River near CanbyRiver gauge, Pit River 2.44 ft Below flood stage −0.18 ft 34 mi
Ady Canal at Highway 97, near WordenCanal gauge, Ady Canal 157 cfs Normal −125.0 cfs 36 mi
Klamath Straits Drain near WordenCanal gauge, Klamath Straits Drain 6.0 cfs Normal +1.3 cfs 37 mi
North Canal at Highway 97, near MidlandCanal gauge, North Canal 1.3 cfs Very low −1.9 cfs 37 mi

Questions and answers

How does Clear Lake Reservoir West Lobe compare with last year?

It is 2.92 ft lower than on the same day last year, when the reading was 4,525.83 ft.

What is a normal level for Clear Lake Reservoir West Lobe in mid-October?

The median for mid-October is 4,522.21 ft. In 8 years out of 10 the reading falls between 4,518.73 ft and 4,529.64 ft, based on 17 years of records.

Is Clear Lake Reservoir West Lobe really 4,522.91 ft deep?

No. 4,522.91 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Clear Lake Reservoir West Lobe today?

On Oct 18, 2026, the surface elevation was 4,522.91 ft. Down 0.08 ft over the last 7 days.

Is Clear Lake Reservoir West Lobe rising or falling?

Down 0.08 ft over the last 7 days.

Is the level of Clear Lake Reservoir West Lobe normal?

Normal for mid-October. Compared with 17 years of daily readings for this time of year.

How often is this data updated?

The U.S. Bureau of Reclamation publishes a new reading once a day. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Bureau of Reclamation
Station code
usbr:7311 (Agency page)
Coordinates
41.84663, -121.20962 (WGS84)
Update interval
once a day
Licence
Public domain. Data: U.S. Bureau of Reclamation (RISE), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation 4,522.91 ft 2026-10-18 07:00 Provisional
Water stored 71,972 acre‑ft 2026-10-18 07:00 Provisional

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How to cite

U.S. Bureau of Reclamation: Clear Lake Reservoir West Lobe (usbr:7311). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/california/clear-lake-reservoir-west-lobe

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.