Muda River Basin received annual precipitation from 2,160 to 2,000 mm (85 to 79 in)/year during the period of 1985 to 2015. Mean monthly maximum (Tmax) and minimum (Tmin) temperature at the Ampangan Muda station ranged from 30.9 to 34.5 °C (87.6 to 94.1 °F) and 21 to 23.5 °C (69.8 to 74.3 °F), respectively.[3]