(This is a different post than the Low Min one)
Low Max records track the lowest maximum temperature for the day.
2634 Low Max Records Broken or tied From 2015-02-19 to 2015-02-25 according to the NOAA. (That is 15% of all the measurements for that period)
Below is a screenshot showing location and the biggest difference between old record and new record.
The list is just the ones I could capture in a screenshot. Wow. Many records broken by over 20F.