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™
Arlington, TXheavy intensity rain818
Houston, TXfew clouds788
Phoenix, AZbroken clouds798
Tampa, FLovercast clouds768
Anaheim, CAovercast clouds596
Sacramento, CAfew clouds575
Tampa Bay, FLbroken clouds755
Atlanta, GAmoderate rain654
Los Angeles, CAbroken clouds584
Miami, FLbroken clouds754
San Diego, CAbroken clouds604
San Francisco, CAbroken clouds554
Cincinnati, OHclear sky633
Kansas City, MOclear sky653
Mexico City, Mexicobroken clouds733
Seattle, WAclear sky583
St. Louis, MOclear sky663
Baltimore, MDlight rain481
Boston, MAovercast clouds461
Bronx, NYmoderate rain421
Chicago (AL), ILbroken clouds451
Chicago (NL), ILbroken clouds451
Cleveland, OHovercast clouds461
Denver, CObroken clouds481
Detroit, MIovercast clouds491
Milwaukee, WIclear sky441
Minneapolis, MNbroken clouds491
Philadelphia, PAmoderate rain431
Pittsburgh, PAovercast clouds491
Queens, NYmoderate rain421
Toronto, ONbroken clouds461
Washington, DCovercast clouds501
Data last updated: 1777172169
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