Yes, according to some studies. Research suggests that people who live in regions with more comfortable temperatures—around 72 degrees—tend to rate higher on the personality traits of agreeableness, conscientiousness, emotional stability, extraversion, and openness to experience than people from less comfortable regions. Research has not found a definitive reason for the differences, but it’s possible that when local climate enables people to spend more time outside, they may have more social interactions and novel experiences, indirectly influencing their personality.