We study the multifractal property of the rainfall in seven cities of Korea. We mainly estimate the generalized Hurst exponent, the Renyi exponent, and the singularity spectrum for tick data of the rainfall. In particular, we discuss the recent findings that suggest the scaling exponents characterizing the rainfall multifractality. After analyzing the multifractality of rainfalls, we compare the multifractal property of seven different cities and discuss the behavior of each city.