General Health
Local rainfall data can provide a practical context for teaching mathematical analysis and discussing environmental preparedness. This study analyzes annual rainfall at the Kayuwatu observation site in Indonesia from 2000 to 2015, using the available historical records. Data for 2004 were unavailable, leaving 15 annual observations. Descriptive analysis showed that annual rainfall ranged from 1,014 mm in 2005 to 3,786 mm in 2010, with a mean of approximately 2,996.63 mm across the available years. These results illustrate substantial variation and provide locally relevant material for teaching statistical analysis, graphical representation, and evidence-based interpretation. Drawing on previous research on climate-related health risks, dengue prevention, rainy-season health education, and flood preparedness, the study discusses how rainfall data may inform public health awareness and environmental education. However, annual rainfall records alone cannot establish a relationship between rainfall and dengue incidence or flooding at the study site. Further research integrating meteorological, epidemiological, and flood-related data is needed to investigate these relationships.