Perhaps this is a sign that the pattern of the last few years has
indeed changed - record warmth instead of snow in Athens as of the last
couple of years!

Scott, we did have a snow day in Athens (Nov 21st), while there have
already been snowfalls in all mountains around Greece, especially in the
northwest. It is not very common to have snowfalls in Athens in
November, though the average figure has rised during the last decade or
so. The last years have given new temperature records for both
temperature minima and temperature maxima. I wouldn't jump to the
conclusion that patterns have changed.

Yannis, SE Athens
+11.9C, RH 67%, SLP 1016.1 hPa