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 clouds8610
Mexico City, Mexicoclear sky8710
Tampa, FLscattered clouds8610
Phoenix, AZscattered clouds879
Anaheim, CAclear sky748
Atlanta, GAbroken clouds808
Cincinnati, OHovercast clouds638
Los Angeles, CAclear sky738
San Francisco, CAfew clouds658
Pittsburgh, PAovercast clouds637
Sacramento, CAclear sky747
San Diego, CAfew clouds707
Washington, DCovercast clouds617
Philadelphia, PAlight rain646
Queens, NYbroken clouds586
Baltimore, MDlight rain615
Miami, FLbroken clouds834
Minneapolis, MNovercast clouds524
St. Louis, MOclear sky644
Tampa Bay, FLclear sky834
Arlington, TXovercast clouds623
Boston, MAscattered clouds543
Bronx, NYscattered clouds573
Cleveland, OHovercast clouds513
Denver, COovercast clouds563
Kansas City, MOclear sky603
Toronto, ONovercast clouds523
Chicago (AL), ILovercast clouds492
Seattle, WAclear sky622
Chicago (NL), ILbroken clouds481
Detroit, MIovercast clouds491
Milwaukee, WIlight rain451
Data last updated: 1777492568
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