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History

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Monthly home run records
The following is a list of most home runs, month-by-month, league-by-league.

April

League Player Team Homers Year
ALAlex RodriguezYankees142007
NLAlbert PujolsCardinals142006

May

League Player Team Homers Year
ALMickey MantleYankees161956
NLBarry BondsGiants172001

June

League Player Team Homers Year
ALBabe Ruth
Bob Johnson
Roger Maris
Yankees
A's
Yankees
15 1930
1934
1961
NL Sammy Sosa Cubs 20 1998

July

League Player Team Homers Year
AL Albert Belle White Sox 16 1998
NL Mark McGwire Cardinals 16 1999

August

League Player Team Homers Year
AL Rudy York Tigers 18 1937
NL Willie Mays
Sammy Sosa
Giants
Cubs
17 1965
2001

September

League Player Team Homers Year
AL Babe Ruth
Albert Belle
Yankees
Indians
17 1927
1995
NL Ralph Kiner Pirates 16 1949

Most through May 31

League Player Team Homers Year
AL Ken Griffey Jr. Mariners 24 1997
NL Barry Bonds Giants 28 2001

Most through June 30

League Player Team Homers Year
AL Ken Griffey Jr. Mariners 32 1994
NL Barry Bonds Giants 39 2001

Most at All-Star break

League Player Team Homers Year
AL Reggie Jackson A's 37 1969
NL Barry Bonds Giants 39 2001

Most through July 31

League Player Team Homers Year
AL Babe Ruth
Jimmie Foxx
Yankees
A's
41 1928
1932
NL Mark McGwire
Barry Bonds
Cardinals
Giants
45 1998
2001

Most through Aug. 31

League Player Team Homers Year
AL Roger Maris Yankees 51 1961
NL Barry Bonds Giants 57 2001

Most through Sept. 30

League Player Team Homers Year
AL Babe Ruth
Roger Maris
Yankees 60 1927
1961
NL Mark McGwire Cardinals 70 1998