Do certain weather conditions lead to more home runs?

Yes! Weather conditions can change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple way to see the if weather will help or hinder baseball flight during a game. The Home Run Forecast Index demonstrates a strong correlation with the number of HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand HRFI forecast data by team and for each 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 LocationSky CoverTemperature (°F)Home Run Forecast Index™
Miami, FLbroken clouds778
Anaheim, CAovercast clouds605
Bronx, NYovercast clouds544
Los Angeles, CAclear sky654
Phoenix, AZclear sky684
Tampa, FLbroken clouds614
Boston, MAovercast clouds513
Queens, NYbroken clouds553
San Diego, CAovercast clouds603
San Francisco, CAscattered clouds613
Seattle, WAovercast clouds563
Sacramento, CAclear sky501
Arlington, TXclear sky381
Atlanta, GAfew clouds351
Baltimore, MDbroken clouds451
Chicago (AL), ILsnow271
Chicago (NL), ILsnow261
Cincinnati, OHsnow261
Cleveland, OHlight snow321
Denver, COscattered clouds381
Detroit, MIclear sky281
Houston, TXclear sky451
Kansas City, MOclear sky241
Milwaukee, WIclear sky251
Minneapolis, MNovercast clouds261
Philadelphia, PAovercast clouds491
Pittsburgh, PAovercast clouds331
St. Louis, MOfew clouds281
Toronto, ONlight snow261
Washington, DCbroken clouds451
Data last updated: 1762782968
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