Clearlake

What is the climate like in Clearlake?

The best time to visit Clearlake is typically May – October, with trip comfort peaking in July (9.6/10). Clearlake is warmest in July, when daily highs average 90°F (32°C), and coolest in February, when lows fall to about 39°F (4°C). The wettest month is typically January and the driest is July; the year sees roughly 32 in (804 mm) of precipitation.

• Best time to visitMay – October — comfort peaks in July (9.6/10)
• Warmest monthJuly — average high 90°F (32°C)
• Coolest monthFebruary — average low 39°F (4°C)
• Wettest monthJanuary (6.6 in (168 mm))
• Driest monthJuly (0.0 in (1 mm))
• Annual precipitation32 in (804 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromClearlake 4 Se, 6 km away (1954-2026)