The typhoon season is usually from the month of July to November. Most often typhoons touch the islands between the southern tip of Samar and Northern Luzon. Approximately 15 per cent of typhoons strike areas south of Samar. The least frequently visited is Southern Mindanao. Northern Luzon is visited by approximately 35 per cent of typhoons, Central Luzon by 20 per cent while Southern Luzon and the Central and Northern Islands by approximately 30 per cent. Climate in the Philippines has been described in terms of the characteristics of the distribution of rainfall received in a locality during the different months of the year. There are four climatic types in the Philippines based on rainfall distribution. It will be noted that most differences in climatic types from North to South are due to mountain barriers which are high enough to cause variations in rainfall distribution
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