Yale Climate Connections has an interesting audio story on how in professional baseball, pitchers are more likely to hit batters than in cooler weather.  They speculate that the heat makes the pitchers more ornery and so they are more likely to throw at the batter than when the air is not as hot.  You can listen to the story at https://www.yaleclimateconnections.org/2017/06/pitchers-are-a-little-likelier-to-hit-batters-in-hot-weather/. How about you? Are you grouchier when the weather is hot?

Source: Yinan Chen, Commons Wikimedia