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™
Tampa, FLbroken clouds768
Miami, FLscattered clouds835
Anaheim, CAclear sky563
Los Angeles, CAclear sky543
Phoenix, AZfew clouds553
San Diego, CAfew clouds543
Sacramento, CAovercast clouds371
Arlington, TXclear sky381
Atlanta, GAovercast clouds431
Baltimore, MDheavy intensity rain361
Boston, MAheavy intensity rain331
Bronx, NYheavy intensity rain381
Chicago (AL), ILbroken clouds211
Chicago (NL), ILbroken clouds211
Cincinnati, OHovercast clouds311
Cleveland, OHovercast clouds321
Denver, COovercast clouds361
Detroit, MIovercast clouds291
Houston, TXfew clouds441
Kansas City, MOfew clouds271
Milwaukee, WIovercast clouds191
Minneapolis, MNovercast clouds141
Philadelphia, PAmoderate rain361
Pittsburgh, PAlight rain331
Queens, NYheavy intensity rain411
San Francisco, CAfew clouds471
Seattle, WAovercast clouds431
St. Louis, MOovercast clouds241
Toronto, ONbroken clouds311
Washington, DCheavy intensity rain371
Data last updated: 1764690970
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