Average annual temperature for Addis Ababa
Month J F M AM J J A S O N D
Annual Max Temp (C) 23.3 24.3 24.8 24.2 24.4 22.8 20.6 20.6 21.3 22.3 22.6 22.8
Annual Min. Temp (C) 9 10..8 11.6 12 12.3 11.2 11.3 11.2 11 9.9 8.7 8.1

By referring to Table 2.5,Calculate annual range of temperature.