Clear Lake Reservoir West Lobe water level
Reservoir, California, United States
Right now
Normal for mid-October
Surface elevation
- Water stored
- 71,972 acre‑ft
History
202120222023202420252026
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.
Forecast: Open-Meteo
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
| Parameter | Last value | Time (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 |
Download
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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.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer