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Clear Lake Reservoir East Lobe water level

Reservoir, California, United States

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Right now

Normal for mid-October

Surface elevation

4,522.76ft Down 0.05 ft over the last 7 days

4,525 4,530

History

History
4,5254,530ftOct 14Oct 15Oct 16Oct 17Oct 194,5254,530ftOct 14Oct 16Oct 19
4,5254,5304,535ftSep 21Sep 28Oct 5Oct 12Oct 194,5254,5304,535ftSep 21Oct 5Oct 19
4,5254,5304,535ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20264,5254,5304,535ftOct 2025Apr 2026Oct 2026
4,5204,5254,530ftOct 2016Apr 2019Oct 2021Apr 2024Oct 20264,5204,5254,530ftOct 2016Oct 2021Oct 2026
4,5204,530ftJanMarMayJulSepNov20264,5204,530ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

Clear Lake Reservoir East Lobe is at 4,522.76 ft, in the normal range for mid-October.

That puts it 0.44 ft below the median of 4,523.20 ft for mid-October, based on 36 years of readings. A year ago it stood at 4,525.68 ft (−2.92 ft).

It has dropped 0.05 ft over the past week. In the last month it has stayed between 4,522.74 ft and 4,523.09 ft.

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

Compared with 36 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
4,523.20 ft0.44 ft below the median for this date
Normal for this date
4,521.95 ft – 4,531.44 ft8 years in 10 fall in this range (36 years of records)
Same day last year
4,525.68 ft−2.92 ft
Lowest and highest in 30 days
4,522.74 ft – 4,523.09 ft
Lowest and highest in 12 months
4,522.74 ft – 4,527.62 ft

On the water at Clear Lake Reservoir East Lobe

Normal levels mean few surprises on the water: ramps in use and the shoreline where you expect it.

Wear a life jacket on the water. Most boating deaths involve people who were not wearing one.

Weather at the gauge

No rain in the last 3 days.

20 Tue 68° 36° – Wind 16 mph
21 Wed 69° 42° – Wind 14 mph
22 Thu 51° 42° 0.34 in, 56% Wind 13 mph
23 Fri 53° 34° – Wind 12 mph
24 Sat 60° 31° – Wind 9 mph
25 Sun 64° 38° – Wind 6 mph
26 Mon 67° 40° – Wind 8 mph

Forecast: Open-Meteo

Sunrise 07:23 AM Sunset 06:16 PM Daylight 10 hr, 53 min Waxing gibbous 71%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Clear Lake Reservoir West LobeReservoir 4,522.95 ft Normal 9 mi
Gerber ReservoirReservoir 4,815.25 ft Normal 19 mi
Lost River ReservoirReservoir 0.00 ft Very low 34 mi
Pit River near CanbyRiver gauge, Pit River 2.34 ft Below flood stage −0.16 ft 37 mi
Ady Canal above Lower Klamath Nwr, near WordenCanal gauge, Ady Canal 53.6 cfs Normal −1.4 cfs 39 mi
North Canal at Highway 97, near MidlandCanal gauge, North Canal 10.0 cfs Low +3.0 cfs 41 mi
Ady Canal at Highway 97, near WordenCanal gauge, Ady Canal 75.1 cfs Normal −121.9 cfs 41 mi
Klamath Straits Drain near WordenCanal gauge, Klamath Straits Drain 0.7 cfs Normal −1.5 cfs 41 mi

Questions and answers

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

It is 2.92 ft lower than on the same day last year, when the reading was 4,525.68 ft.

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

The median for mid-October is 4,523.20 ft. In 8 years out of 10 the reading falls between 4,521.95 ft and 4,531.44 ft, based on 36 years of records.

Is Clear Lake Reservoir East Lobe really 4,522.76 ft deep?

No. 4,522.76 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 East Lobe today?

On Oct 19, 2026, the surface elevation was 4,522.76 ft. Down 0.05 ft over the last 7 days.

Is Clear Lake Reservoir East Lobe rising or falling?

Down 0.05 ft over the last 7 days.

Is the level of Clear Lake Reservoir East Lobe normal?

Normal for mid-October. Compared with 36 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:7309 (Agency page)
Coordinates
41.92603, -121.07588 (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 4,522.76 ft 2026-10-19 07:00 Provisional

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How to cite

U.S. Bureau of Reclamation: Clear Lake Reservoir East Lobe (usbr:7309). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/california/clear-lake-reservoir-east-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.