%0 Dataset %T Monthly precipitation dataset for the arid region of Northwest China during 2000–2024 %J National Cryosphere Desert Data Center %I National Cryosphere Desert Data Center(www.ncdc.ac.cn) %U http://www.ncdc.ac.cn/portal/metadata/b88cfab0-1e9d-44bc-b198-fe8cf037ca16 %W NCDC %R 10.12072/ncdc.nieer.db7006.2025 %A yangyong %K precipitation %X High precision precipitation data is of great significance for hydrological research, agriculture, flood forecasting, drought monitoring, and climate change adaptation strategies. This data utilizes Bayesian model averaging method (BMA) to fuse 9 precipitation products and obtain monthly precipitation data from 2000 to 2024 in the northwest arid region (2.5 ′). The geographic spatial range included in the dataset is the arid northwest region. This dataset is stored in NC file format, with the file naming convention being pre_year, where year represents the year.