Boston exceeded their record low October SLP by over 5 hPa by 3:10 am when their pressure fell to 976.3 hPa. The previous record of 982.4 hPa was last tied on 10/30/2017. This is 12.2 hPa shy of their all time record low pressure set on 3/4/1971.

— David Roth (@DRmetwatch) October 17, 2019