I was trying to watch the FoxNews streaming feed from Washington, DC but it kept cutting out so I gave up a minute ago.  But from what I saw it looked pretty cold there.  The Marine Band was playing in the background while people filed in for the ceremony.  I kind of felt sorry for them having to perform in that kind of weather.  I’ve done that sort of thing and it’s not easy.  My biggest problem was cold hands.  It makes them stiff and you have to really work to keep them warm (I was a percussionist).

The other annoying fact of physics is that cold instruments go flat.  The seemed to be compensating pretty well so far (but I wonder how far those brass players have their slides pushed in).  I recall one performance when I was in college when I was in the pit where it was so cold that I had to stop playing the marimba because the band had collectively gone flat (it was probably about 15° outside).  At least I was able to detune the tympani to match the band (the advantage of a continuously tunable instrument).