Urban weather dataset for building energy simulations: Data collection and EPW file generation for Torino, Italy (2014–2023)
Ali JahaniRahaei, Massimo Milelli, Giacomo Chiesa

TL;DR
This paper presents a detailed urban weather dataset for Torino, Italy, from 2014 to 2023, processed into EPW files for building energy simulations.
Contribution
The novel contribution is the creation of a processed, standardized weather dataset for Torino, including a TMY and EPW files, using custom Python scripts.
Findings
A Typical Meteorological Year (TMY) was generated following the ISO 15927-4 standard for Torino.
The dataset includes hourly weather data with missing values estimated using interpolation and statistical methods.
The data pipeline is adaptable for other cities with weather stations.
Abstract
This dataset provides urban climate data collected from seven weather stations in Torino, Italy, spanning the years 2014 to 2023. The weather stations, operated by ARPA Piemonte, measure key meteorological variables, including air temperature, relative humidity, wind speed and direction, atmospheric pressure, and solar radiation. The data, initially in CSV format, were processed using Python to clean and merge the variables, computing missing parameters such as splitting global irradiation into its components and generating an hourly dataset for each year. Subsequently, a Typical Meteorological Year (TMY) was generated following the ISO 15927-4 standard. Missing data points were estimated using various interpolation and statistical methods to ensure data completeness. Finally, the data were converted into EnergyPlus Weather (EPW) format using custom Python scripts. This dataset serves…
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Taxonomy
TopicsBuilding Energy and Comfort Optimization · Air Quality Monitoring and Forecasting
