It is really hot in the library all the time
Puget Sound facilities staff are working very hard to find solutions to regulate the library’s temperature. Unfortunately, there isn’t a quick solution. The building was built in many sections over many years, and the sections are heated and cooled by separate systems.
Facilities is working hard to get these in sync, and ultimately to upgrade the HVAC. In the meantime, though, you may need to layer and/or move around the Library a bit to find your personal comfort zone.