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™
Houston, TXbroken clouds8710
Mexico City, Mexicoscattered clouds8710
Tampa, FLfew clouds8510
Phoenix, AZscattered clouds889
Anaheim, CAclear sky748
Atlanta, GAbroken clouds818
Cincinnati, OHbroken clouds658
Los Angeles, CAclear sky738
San Francisco, CAfew clouds648
Philadelphia, PAmoderate rain627
Sacramento, CAclear sky767
San Diego, CAscattered clouds707
Pittsburgh, PAlight rain616
Baltimore, MDlight rain605
Queens, NYlight rain565
Washington, DClight rain605
Miami, FLlight rain824
Minneapolis, MNovercast clouds534
St. Louis, MOclear sky644
Tampa Bay, FLclear sky824
Arlington, TXbroken clouds643
Boston, MAclear sky523
Bronx, NYfew clouds553
Denver, COlight rain573
Kansas City, MOclear sky603
Toronto, ONovercast clouds523
Seattle, WAclear sky642
Chicago (AL), ILbroken clouds501
Chicago (NL), ILovercast clouds471
Cleveland, OHovercast clouds501
Detroit, MIovercast clouds491
Milwaukee, WImoderate rain451
Data last updated: 1777496167
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