Folsom LakeWater Level & Temperature
Folsom Lake water level & water temperature
Folsom Lake water level is updated continuously from the operating agency. Full pool elevation is 466 ft. Live reading, 7-day trend, and multi-year history appear below as the data loads.
Folsom Lake water temperature by month
Folsom Lake surface water temperature averages from about 50°F in January to 79°F in August over the year, based on a 40-year USGS model (1980–2020). Cold-water caution applies in January, February, March, November and December, when the typical temperature is below 60°F.
Jan
50°
Feb
51°
Mar
55°
Apr
62°
May
68°
Jun
74°
Jul
78°
Aug
79°
Sep
76°
Oct
69°
Nov
60°
Dec
51°
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.