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).
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. June-Early September. In the summertime, the sun glares down on Tuscany and the warm rays are accompanied by average highs in the upper 80s.