Does it snow in Lisbon?

Very rarerly, but today it did and I wasn't there! Everyone is taking photos, talking about the big snow fall (nevão) and celebrating this unusual event. It seems that the last time it snowed in Lisbon was on February 2nd, 1954. 52 years ago! I want to commemorate with the weather.com screen that will confirm, to future generations that this in fact really took place. I'm sure we'll not see the frozen drops falling in Lisbon for many years, except if man continues to screw up the ozone.