Hidden Valley Lake

What is the climate like in Hidden Valley Lake?

The best time to visit Hidden Valley Lake is typically April – October, with trip comfort peaking in July (9.5/10). Hidden Valley Lake is warmest in July, when daily highs average 94°F (35°C), and coolest in December, when lows fall to about 41°F (5°C). The wettest month is typically January and the driest is July; the year sees roughly 27 in (682 mm) of precipitation.

• Best time to visitApril – October — comfort peaks in July (9.5/10)
• Warmest monthJuly — average high 94°F (35°C)
• Coolest monthDecember — average low 41°F (5°C)
• Wettest monthJanuary (5.8 in (147 mm))
• Driest monthJuly (0.0 in (0 mm))
• Annual precipitation27 in (682 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromClearlake 4 Se, 13 km away (1954-2026)