Average WEATHER IN ITALY
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Weather in Italy: Italy is not a huge country - nothing compared to the US, and there are no huge differences in climate like those that exist when you compare Michigan to, say, Florida so you can take the following notes that I am writing about Rome and consider that Milano in the north is on average probably 10-20 degrees F colder and Palermo in Sicily is 10-20 degrees warmer.
Weather in Rome
I lived in Rome approximately 20 years and I still go to Rome from Washington D.C. about 5 times a year.