July in Davis averages a daily high of 34.5°C with nights around 14.3°C. Rain is rare — about 0.1 wet days and 0.1mm across the month. Generally workable, with some weather to plan around.
Across the year, the best time to visit Davis is April–May.
Based on DAVIS 2 WSW EXPERIMENTAL FARM, CA US (3.3km), 1995–2024. 30 years of July data.