Colusa

What is the climate like in Colusa?

The best time to visit Colusa is typically April – October, with trip comfort peaking in September (9.2/10). Colusa is warmest in July, when daily highs average 105°F (40°C), and coolest in December, when lows fall to about 43°F (6°C). The wettest month is typically January and the driest is July; the year sees roughly 20 in (503 mm) of precipitation.

• Best time to visitApril – October — comfort peaks in September (9.2/10)
• Warmest monthJuly — average high 105°F (40°C)
• Coolest monthDecember — average low 43°F (6°C)
• Wettest monthJanuary (4.2 in (108 mm))
• Driest monthJuly (0.0 in (0 mm))
• Annual precipitation20 in (503 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromColusa 2 Ssw, 3 km away (1948-2026)