The goal of the project entitled Digitization of meteorological data archives collected in Małopolska region from the 19th to the mid-20th century is to create a database documenting meteorological measurements in Małopolska from the 19th to the mid-20th century. It is a first step for possible further activities conducted for the whole area of the country. The project constitutes a digitized database including both image files (diaries of daily measurements and observations) and numerical data of selected weather elements, i.e. air pressure and temperature, precipitation and snow cover collected at 22 stations located across the region. In addition, it is also planned to create an on-line platform popularizing the knowledge contained thereinin unique archives. An application will be developed that will be a professional tool for data visualization based on attribute analysis. Basic statistical information can be obtained in the form of a table and, thanks to the software processing numerical data into a graphic form, also in the form of charts. The content presented through the portal will be available in Polish and English language in order to increase the availability of the project results for foreign recipients.