Baseball America: Ballpark Factors

[weams]

http://www.baseballamerica.com/minors/baseballist-extreme-ballparks-minors/

No two ballparks play exactly alike, and that absence of uniformity from site to site is one of baseball's great charms. Context is everything.

A struck baseball travels farther in high elevation and thin air, meaning that some huge ballparks - especially those in California and Pacific Coast leagues - might actually favor hitters. Some smaller parks on the East Coast - such as those in the Carolina or Southern leagues - favor pitchers because they're closer to sea level with high average humidity readings.

[DrungoHazewood]

http://www.baseballamerica.com/minors/baseballist-extreme-ballparks-minors/

Do they not know that humid air is less dense than dry air and causes the ball to travel further? Altitude is a larger impact, but if you could somehow get a very high, very humid environment the ball would launch like a rocket.

[BohKnowsBmore]

Do they not know that humid air is less dense than dry air and causes the ball to travel further? Altitude is a larger impact, but if you could somehow get a very high, very humid environment the ball would launch like a rocket.

From wiki, re: coors field:

Prior to the 2002 baseball season, studies determined that it was more the dry air rather than thin air which contributed to the more frequent home runs. It was found that baseballs stored in drier air are harder and therefore more elastic to the impact of the bat. A room-sized humidor was installed in which to store the baseballs, and since its introduction the number of home runs at Coors Field has decreased and is now nearly the same as other parks.[14]

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[DrungoHazewood]

From wiki, re: coors field:

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That's about storage. If you store balls in very low humidity they have more resiliency and travel farther. So the perfect conditions for hitting a ball a mile are 1) high altitude, 2) high humidity, and 3) balls stored at very low humidity. So La Paz, Bolivia, right after a heavy rainstorm, with balls that have been stored in an air-tight container mostly filled with desiccant and hooked up to a de-humidifier.