Story in today’s Washington Post on weather analytics for baseball.
https://wapo.st/3D47OJZ
For every 1 degree Celsius (1.8 degree Fahrenheit) increase in temperature, the number of home runs in a game increases by 1.96 percent, according to a study published in April that analyzed home run and weather data from more than 100,000 MLB games between 1962 and 2019. The study found that more than 500 home runs since 2010 can be linked to climate warming, and that the phenomenon could account for an additional 130 to 467 home runs per year by the end of the century, depending on how much the planet warms.
A Washington Post analysis of MLB data supports the notion that balls fly farther in the summer months. Since 2006, the average number of home runs per game climbed from 2.10 in April and May to 2.20 in June, July and August. The average distance of “barreled” flyballs showed a similar trend, increasing from 387 feet in April and May to 390.6 feet in June, July and August. “Barreled” balls — well-struck balls that meet certain exit velocity and launch-angle criteria — were chosen because they are all hit similarly, helping to isolate the effects of external factors such as temperature. So far in 2023, the average distance of barreled flyballs increased from 385.5 feet in April and May to 387.3 feet in June and early July, while the average home runs per game climbed from 2.30 in April and May to 2.34 in June and early July.