wow ... here a hundred is unusual, but ... in the place in Prague where I've been living for twelve years, we had one today (I believe during this time it's happened just once before, on the day with the highest recorded temperature ever in this country: almost 105 F, August 12, 2012, in some village in like a valley close to Prague); the meteo station closest to my place showed this (the highest tick in red marks 40 C = 104 F):We had our 7th straight day over 100 degrees Fahrenheit. Expecting three more.
which is not official as it'd be from a professional station, but indicates there was a hundred here because ... the rain (and cooling down) after 14:00 hours actually didn't come here LOL
as for professional stations ... here:
you could see daily temperatures in downtown Prague since 1775