Frequency distribution refers to a set of frequencies with a  particular set of values into which a statistical population is  grouped. Relative frequency refers to data preâ¦sented in a table  that demonstrates the relative frequency of multiple  non-overlapping classes.
1 The annual average temperature in Florence, Tuscany, Italy is mild at 14.6 degrees Celsius (58.3 degrees Fahrenheit). 2  Average monthly temperatures vary by 18.4 C (33.1 F) which is a slightly low range. 3  The average diurnal temperature variation/ range is 11 C (19.8 F).
Best Times to Visit Tuscany. The best times to visit Tuscany are between late September and October and between April and May. During these months, travelers will find comfortable temperatures and fewer crowds at the major sights. As expected, summer ushers in high temperatures and heavy crowds. If you want Tuscany all to yourself, visit during the winter low season, but expect the cold and lots of rain. In the summertime, the sun glares down on Tuscany and the warm rays are accompanied by average highs in the upper 80s.