Kyle Schwarber: 16 HR in June
— Sarah Langs (@SlangsOnSports) June 29, 2021
Only w/MORE in a calendar month:
'98 Sammy Sosa, June: 20
'17 Giancarlo Stanton, Aug: 18
'37 Rudy York, Aug: 18
'01 Sosa, Aug: 17
'01 Barry Bonds, May: 17
'95 Albert Belle, Sep: 17
'65 Willie Mays, Aug: 17
'43 York, Aug: 17
'27 Babe Ruth, Sep: 17