A map showing average rainfall, processed from statistical data collected continuously over the past 30 years (e.g., 1981–2010). This information serves as a standard reference to illustrate general rainfall patterns and distribution. Users can view the data in two formats: 1. Monthly average – to observe seasonal rainfall patterns for each month. 2. 30-year average – to see the overall annual average. This information is used to compare and understand the climatic characteristics in different regions across the country.