Do certain weather conditions lead to more home runs?

Yes! Weather conditions change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple indication of how weather will help or hinder baseball flight during a game. The HRFI demonstrates a strong correlation with HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand forecast data by team and game.

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Current Weather Conditions and HRF Index

The table below shows the Home Run Forecast Index (HRFI) value for each big league ballpark. The HRFI ranges from 1 to 10, with 10 indicating the most favorable weather conditions for ball fight and 1 indicating least favorable. Learn more about how we calculate this index here.

This data is updated hourly at the top of the hour. For ballparks with a retractable roof, the index is calculated for open roof conditions. Check local sources for roof status. For ballparks with a permanent roof, the index is calculated for indoor conditions.

Ballpark Location	Sky Cover	Temperature (°F)	Home Run Forecast Index™
Anaheim, CA	clear sky	73	8
Arlington, TX	clear sky	80	8
Chicago (AL), IL	broken clouds	68	8
Chicago (NL), IL	overcast clouds	67	8
Houston, TX	clear sky	79	8
Los Angeles, CA	clear sky	71	8
Oakland, CA	few clouds	64	8
Philadelphia, PA	scattered clouds	77	8
San Francisco, CA	few clouds	62	8
Washington, DC	few clouds	78	8
Williamsport, PA	clear sky	79	8
Baltimore, MD	scattered clouds	79	7
Kansas City, MO	clear sky	72	7
Phoenix, AZ	clear sky	90	7
Queens, NY	broken clouds	67	7
West Palm Beach, FL	broken clouds	74	7
San Diego, CA	few clouds	68	6
St. Louis, MO	clear sky	69	6
Cincinnati, OH	overcast clouds	71	5
Cleveland, OH	overcast clouds	68	5
Detroit, MI	light rain	65	5
Dyersville, IA	overcast clouds	54	5
Milwaukee, WI	broken clouds	62	5
Tampa Bay, FL	few clouds	76	5
Jupiter, FL	overcast clouds	74	4
Atlanta, GA	broken clouds	70	4
Bronx, NY	broken clouds	67	4
Denver, CO	overcast clouds	65	4
Pittsburgh, PA	scattered clouds	72	4
Mexico City, México	broken clouds	80	3
Boston, MA	broken clouds	58	3
Miami, FL	few clouds	76	3
Minneapolis, MN	overcast clouds	47	1
Seattle, WA	light rain	50	1
Toronto, ON	few clouds	50	1

Data last updated: 1714438567

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