Todays November snow here in NE England reminded me of the story that Our Blessed Lady, herself, indicated in a dream to Pope Liberius where her great church (Santa Maria Maggiore) in Rome was to be built. She confirmed this by having snow fall on the site even though it was 5th August!
Each year at Mass on that day white rose petals fall from the ceileing to carpet the floor of the church. I have never been in Rome at that time of year but it must be a beautiful sight and one not to be missed. If families are in Rome at that time of year do let your children experience this - just one of those memories that provides a great teaching tool on miracles.