The diagram shows graph and table for monthy and annual average rainfall in centimetres respectively for a period of 30 years from 1971 to 2000 for three towns, Kainaliu, Opihihale and Holualoa in district of Kona in Hawaii.
For all three towns, starting months of the year experience less rainfall followed by increase after March, leading to peak rainfall during mid of the year. End of the year follows same pattern as starting months reporting decreasing slope for reported average values.
Kainaliu received maximum rainfall in January of approximately 10 centimetres with other two towns having values close to 8 centimetres. However, with decrease in rainfall for Kainallu for following month and increase for others, in March all three towns recorded approximately same amount of downpour with values close to 9 centimetres. After March, rainfall inreased for all towns with maximum increase noted by Kainallu reaching peak of 17 cm in September. Opihihale and Holualoa also showed significant increase observing peaks of 12 cm average rainfall in July and 10 cm in September respectively. Months following September saw decrease in rainfall with each passing month reaching minimum values by December for all three towns.
Annually, Kainaliu recorded maximum rainfall with average of 138.38 cm , followed by Holualoa with value 110.48 cm thus, making Opihihale the town with minimum annual rainfall with least value as 97.53 cm.