May in Hanford averages a daily high of 28.5°C with nights around 12.9°C. Rain is rare — about 2 wet days and 7.8mm across the month. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Hanford is April–May.
Based on HANFORD 1 S, CA US (1.5km), 1995–2024. 29 years of May data.