The blood consists of a suspension of special cells in a liquid called plasma. In an adult man, the blood is about 1/12th of the body weight and this corresponds to 5-6 litres. Blood consists of 55 % plasma, and 45 % by cells called formed elements. The blood performs a lot of important functions.
The weather and its seasons. Grenada boasts comfortable to hot weather year round. Expect temperatures that range from 32 C during the day in summer to as low as 20 C overnight in winter.
The Grenada climate guide is perfect for planning your holiday. Monthly weather statistics give the best indication of what the weather is usually like for every month of the year including figures for temperature, rainfall and sunshine. The climate guide for Grenada shown below is for St George's. 1  Temperature in Grenada.  Rainfall in Grenada.