Distribution of Rainfall in Pahang, Malaysia: Trends and Characteristics

Abstract Pahang has experienced frequent flooding due to climate change, natural variability, and extreme weather, leading to loss of life and property damage. This study analyzes rainfall trends and distribution from 1992 to 2021 at four stations in Pahang using the Mann-Kendall statistical test. Kg Cherating records the highest and most variable rainfall, with frequent extreme events. Gg Brinchang shows the highest annual and monthly totals, consistently surpassing 3000 mm annually and 400 mm monthly, with peaks above 800 mm, indicating significant variability. Pos Iskandar and JPS Temerloh exhibit lower and more stable rainfall patterns, with annual totals between 1000 mm and 2000 mm. Pos Iskandar has slightly higher monthly variability than Temerloh, with occasional peaks above 400 mm. Despite slight positive or negative trends at some stations, no statistically significant long-term annual or seasonal rainfall trends were observed, except for Pos Iskandar, which shows a significant increase in monthly rainfall. These findings highlight stable rainfall patterns for JPS Temerloh, Kg Cherating, and Gg Brinchang. To enhance understanding of rainfall dynamics, further analysis of Pahang’s dry and wet seasons is recommended.