Temperature and precipitation 1991-2020 climatic normals over Italy
Climate normals are the mean or characteristic values of a climate variable in a long time interval. The World Meteorological Organization (WMO) established that the length of the reference period should be 30 years, recommending to update the normals every 10 years, in order to provide representative reference values for recent climatic conditions.
By applying the WMO data requirements and criteria, temperature and precipitation normals over Italy were calculated, using meteorological time series available through the Sistema nazionale per la raccolta, l’elaborazione e la diffusione di dati Climatologici di Interesse Ambientale (SCIA), integrated with those from other sources. Monthly, seasonal and annual normal values for 1991 - 2020 are presented in the form of tables, plots and maps, obtained through geostatistical algorithms.
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