Psychologist Craig Anderson used archival sources from cities across the United States to gather data on the rates of murder, rape, assault, robbery, burglary, and motor vehicle theft. He confirmed that violent crime increases with temperature but that nonviolent crime does not. In such field studies, hotter regions of the world and hotter years, seasons, months, and days are all linked with more aggression. Some studies even suggest that baseball pitchers throw more aggressively in hot weather, as there is an increase in the number of batters hit by pitches on hot days.
https://www.psychologytoday.com/us/blog/out-the-ooze/201905/hot-and-bothered-does-heat-make-people-aggressive