Clear LakeWater Level & Temperature
Clear Lake water level & water temperature
Clear Lake water level is updated continuously from USGS gauge 05460000 (NAVD88). Typical level elevation is 1227 ft. Live reading, 7-day trend, and multi-year history appear below as the data loads.
Clear Lake water temperature by month
Clear Lake surface water temperature averages from about 35°F in January to 78°F in July over the year, based on a 40-year USGS model (1980–2020). Cold-water caution applies in roughly half the year, when the typical temperature is below 60°F.
Jan
35°
Feb
35°
Mar
37°
Apr
47°
May
61°
Jun
72°
Jul
78°
Aug
76°
Sep
69°
Oct
56°
Nov
43°
Dec
36°
Typical surface temperatures (°F), modeled historical averages (USGS 185k-lake dataset, 1980–2020). Colors flag cold-water risk: blue/amber/red = cool, caution, danger. Live and recent readings appear above where a sensor is available.