Bangladesh Daily Climate Dataset (1980–2025) from MERRA-2 Reanalysis

This dataset provides a 45-year (1980–2025) daily climate record for Bangladesh derived from NASA MERRA-2 reanalysis data via the NASA Giovanni platform. The dataset contains 16,802 daily observations and 99 features, including core meteorological variables (temperature, precipitation, humidity, pressure, wind) and engineered features such as rolling statistics, lag variables, climate indices (SPI, heat index, vapour pressure deficit), STL decomposition components, anomaly indicators, and weather regime classifications. The data are spatially averaged over Bangladesh and designed for climate analysis, extreme-event detection, hydrological applications, and machine learning. Files are provided in CSV, Parquet, and Excel formats, along with metadata and validation documentation.