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™
Anaheim, CAclear sky798
Los Angeles, CAclear sky808
Miami, FLbroken clouds588
San Diego, CAclear sky738
Arlington, TXclear sky717
Phoenix, AZbroken clouds777
San Francisco, CAclear sky707
Sacramento, CAclear sky695
Denver, COclear sky654
Kansas City, MOclear sky604
Tampa, FLclear sky534
Seattle, WAclear sky573
Atlanta, GAclear sky411
Baltimore, MDclear sky281
Boston, MAclear sky271
Bronx, NYclear sky321
Chicago (AL), ILovercast clouds291
Chicago (NL), ILovercast clouds301
Cincinnati, OHovercast clouds211
Cleveland, OHbroken clouds201
Detroit, MIlight snow201
Houston, TXclear sky661
Milwaukee, WIovercast clouds311
Minneapolis, MNclear sky361
Philadelphia, PAscattered clouds271
Pittsburgh, PAclear sky221
Queens, NYfew clouds311
St. Louis, MOscattered clouds381
Toronto, ONbroken clouds231
Washington, DCclear sky311
Data last updated: 1770332169
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