Norris LakeWater Level & Temperature
Norris Lake water level & water temperature
Norris Lake water level is updated continuously from the operating agency. Full pool elevation is 1020 ft. Live reading, 7-day trend, and multi-year history appear below as the data loads.
Norris Lake water temperature by month
Norris Lake surface water temperature averages from about 46°F in February to 85°F in July over the year, based on a 40-year USGS model (1980–2020). Cold-water caution applies in January, February, March and December, when the typical temperature is below 60°F.
Jan
46°
Feb
46°
Mar
52°
Apr
61°
May
73°
Jun
82°
Jul
85°
Aug
85°
Sep
80°
Oct
71°
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.