Squam LakeWater Level & Temperature
Squam Lake water level & water temperature
Squam Lake water level is updated continuously from the operating agency. Typical level elevation is 561 ft. Live reading, 7-day trend, and multi-year history appear below as the data loads.
Squam Lake water temperature by month
Squam Lake surface water temperature averages from about 34°F in January to 76°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
34°
Feb
35°
Mar
36°
Apr
45°
May
59°
Jun
70°
Jul
76°
Aug
75°
Sep
67°
Oct
54°
Nov
42°
Dec
35°
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.