Rome has a gorgeous climate and being socked-in by clouds and rain is
less common than many other cities.
Seems to be, Laurel, Donna's comments above about November & December weather notwithstanding.
Can't get out of my mind late February in Rome a couple years ago. Windows partially open all night at our 2nd floor efficiency, letting the fresh 40-degree air in. Waking early with the sounds of the market vendors arriving to set up their stalls for the day, I donned running shoes & a stocking cap and strode briskly down to the ancient Tiber for a walk. Doubling back, I stopped by my favorite barrister for a quick caffe & an English language newspaper. Then back to the apartment to wake my wife & start my day!
Roma--she wakes up slowly, and that's the time to savor her...