(Äp'É-nÄf'rÄ­n) A hormone that is secreted by the adrenal gland in response to physical or mental stress, as from fear, and is regulated by the autonomic nervous system. The release of epinephrine causes an increase in heart rate, blood pressure, and respiratory rate.
The average maximum daytime temperature in Sicily in December is a comfortable 16Â°C (61Â°F), while the average minimum night-time temperature is a cool 11Â°C (52Â°F). On average 90 mm (3.5 inches) of rain normally falls in Sicily during December with rain falling on 12 days of the month.
November - January | February - March. The weather in Sicily in April, as the days grow longer, is warmer and dryer, and the bravest might even take a dip in the sea although the waters are still bracing. Eight hours of sunshine a day and an average high of 20 degrees await those holidaying in Sicily in April.