Definition. Simple or arithmetic average of a range of values or quantities, computed by dividing the total of all values by the number of values. For example, the mean of 1, 2, 3, 4, and 5 is (15 Ã· 5) = 3.
25Â°C (77Â°F) in July. The average maximum daytime temperature in Sicily in July is a hot 30Â°C (86Â°F), while the average minimum night-time temperature is a warm 22Â°C (72Â°F).n average 4 mm (0.2 inches) of rain normally falls in Sicily during July with rain falling on 1 days of the month. You can expect on average 11 hours of sunshine a day in Sicily during July.
Sicily: Annual Weather Averages. August is the hottest month in Sicily with an average temperature of 22Â°C (72Â°F) and the coldest is January at 9Â°C (48Â°F) with the most daily sunshine hours at 14 in July.The wettest month is December with an average of 78.6mm of rain.ugust is the hottest month in Sicily with an average temperature of 22Â°C (72Â°F) and the coldest is January at 9Â°C (48Â°F) with the most daily sunshine hours at 14 in July.