At 11 AM on Thursday, January 3, 2008, the mean sea-level barometric pressure rose to 30.77 inches of mercury. This breaks the old all-time record of 30.74 inches set on two days: January 4, 1979 and February 5, 1996.
We also tied one other record during this cold spell. The high temperature on January 2, 2008 was 42 degrees, and that tied the record low maximum for the date (i.e. that means the high temperature on that date was so cold that it tied a record).
Here are the low temperatures that occurred during this cold wave
Wednesday Morning: 33 degrees
Thursday Morning: 25 degrees
Friday Morning: 32 degrees (26 degrees occurred just before midnight on Friday)
As I noted in my previous blog post, I thought the magnitude of the cold wave advertised by the models (and by some forecasters who don't work here) was too extreme. Indeed, the models were more than 10 degrees too cold in some cases and our meteorologists made pretty good adjustments to get it as close to correct as possible.