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™
Bronx, NYbroken clouds608
Houston, TXclear sky698
Miami, FLfew clouds828
Tampa, FLfew clouds766
Phoenix, AZfew clouds655
Tampa Bay, FLclear sky785
Anaheim, CAclear sky704
Atlanta, GAfew clouds544
Queens, NYscattered clouds604
San Diego, CAclear sky674
Baltimore, MDfew clouds543
Boston, MAmoderate rain563
Las Vegas, NVclear sky523
Los Angeles, CAclear sky653
Philadelphia, PAscattered clouds533
San Francisco, CAclear sky553
Washington, DCfew clouds543
Arlington, TXbroken clouds542
Williamsport, PAscattered clouds481
Chicago (AL), ILclear sky421
Chicago (NL), ILscattered clouds421
Cincinnati, OHclear sky461
Cleveland, OHovercast clouds441
Denver, COclear sky471
Detroit, MIovercast clouds441
Kansas City, MOovercast clouds441
Milwaukee, WIclear sky391
Minneapolis, MNfew clouds371
Pittsburgh, PAovercast clouds461
Sacramento, CAclear sky471
Seattle, WAovercast clouds501
St. Louis, MOscattered clouds431
Toronto, ONfew clouds451
Data last updated: 1794063369
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