California

What is the climate like in California?

The best time to visit California is typically September, the year's most comfortable month (6.5/10). California is warmest in July, when daily highs average 84°F (29°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically May and the driest is November; the year sees roughly 55 in (1392 mm) of precipitation.

• Best time to visitSeptember — the year's comfort peak (6.5/10)
• Warmest monthJuly — average high 84°F (29°C)
• Coolest monthJanuary — average low 26°F (-3°C)
• Wettest monthMay (6.1 in (156 mm))
• Driest monthNovember (3.0 in (76 mm))
• Annual precipitation55 in (1392 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromDonora 1 Sw, 11 km away (1926-2026)